[INFO] fetching crate sharded-slab 0.1.7...
[INFO] testing sharded-slab-0.1.7 against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739-1
[INFO] extracting crate sharded-slab 0.1.7 into /workspace/builds/worker-7-tc2/source
[INFO] removed /workspace/builds/worker-7-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate sharded-slab 0.1.7
[INFO] finished tweaking crates.io crate sharded-slab 0.1.7
[INFO] tweaked toml for crates.io crate sharded-slab 0.1.7 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sharded-slab 0.1.7 on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 157 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.3.6 (available: v0.8.2)
[INFO] [stderr]       Adding indexmap v1.9.3 (available: v2.14.0)
[INFO] [stderr]       Adding loom v0.5.6 (available: v0.7.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74ad392309bc50ec04fc40eb56657fc81f45eec191d48316c1f1be49d289e3fe
[INFO] running `Command { std: "docker" "start" "-a" "74ad392309bc50ec04fc40eb56657fc81f45eec191d48316c1f1be49d289e3fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74ad392309bc50ec04fc40eb56657fc81f45eec191d48316c1f1be49d289e3fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74ad392309bc50ec04fc40eb56657fc81f45eec191d48316c1f1be49d289e3fe", kill_on_drop: false }`
[INFO] [stdout] 74ad392309bc50ec04fc40eb56657fc81f45eec191d48316c1f1be49d289e3fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d4bb3ffdb7836dc085f70f0a06537c0f235dfe664ef757f212c034fd7b66055
[INFO] running `Command { std: "docker" "start" "-a" "7d4bb3ffdb7836dc085f70f0a06537c0f235dfe664ef757f212c034fd7b66055", kill_on_drop: false }`
[INFO] [stderr]    Compiling sharded-slab v0.1.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `loom`
[INFO] [stdout]   --> src/macros.rs:15:17
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[cfg(all(test, loom))]
[INFO] [stdout]    |                 ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 32 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/pool.rs:453:9
[INFO] [stdout]     |
[INFO] [stdout] 453 |         test_println!("pool: create {:?}", tid);
[INFO] [stdout]     |         --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/pool.rs:621:9
[INFO] [stdout]     |
[INFO] [stdout] 621 |         test_println!("pool: create_owned {:?}", tid);
[INFO] [stdout]     |         --------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/pool.rs:655:9
[INFO] [stdout]     |
[INFO] [stdout] 655 |         test_println!("pool: create_with");
[INFO] [stdout]     |         ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/pool.rs:678:9
[INFO] [stdout]     |
[INFO] [stdout] 678 |         test_println!("pool: get{:?}; current={:?}", tid, Tid::<C>::current());
[INFO] [stdout]     |         ---------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/pool.rs:769:9
[INFO] [stdout]     |
[INFO] [stdout] 769 |         test_println!("pool: get{:?}; current={:?}", tid, Tid::<C>::current());
[INFO] [stdout]     |         ---------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/pool.rs:914:9
[INFO] [stdout]     |
[INFO] [stdout] 914 |         test_println!("drop Ref: try clearing data");
[INFO] [stdout]     |         -------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]     --> src/macros.rs:3:31
[INFO] [stdout]      |
[INFO] [stdout]    3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]      |                               ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]     ::: src/pool.rs:1049:9
[INFO] [stdout]      |
[INFO] [stdout] 1049 |         test_println!(" -> drop RefMut: try clearing data");
[INFO] [stdout]      |         --------------------------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]      = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]     --> src/macros.rs:3:31
[INFO] [stdout]      |
[INFO] [stdout]    3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]      |                               ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]     ::: src/pool.rs:1124:9
[INFO] [stdout]      |
[INFO] [stdout] 1124 |         test_println!("drop OwnedRef: try clearing data");
[INFO] [stdout]      |         ------------------------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]      = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]     --> src/macros.rs:3:31
[INFO] [stdout]      |
[INFO] [stdout]    3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]      |                               ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]     ::: src/pool.rs:1135:13
[INFO] [stdout]      |
[INFO] [stdout] 1135 |             test_println!("-> shard={:?}", shard_idx);
[INFO] [stdout]      |             ----------------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]      = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]     --> src/macros.rs:3:31
[INFO] [stdout]      |
[INFO] [stdout]    3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]      |                               ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]     ::: src/pool.rs:1139:17
[INFO] [stdout]      |
[INFO] [stdout] 1139 |                 test_println!("-> shard={:?} does not exist! THIS IS A BUG", shard_idx);
[INFO] [stdout]      |                 ----------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]      = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]     --> src/macros.rs:3:31
[INFO] [stdout]      |
[INFO] [stdout]    3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]      |                               ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]     ::: src/pool.rs:1238:9
[INFO] [stdout]      |
[INFO] [stdout] 1238 |         test_println!("-> shard={:?}", shard_idx);
[INFO] [stdout]      |         ----------------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]      = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]     --> src/macros.rs:3:31
[INFO] [stdout]      |
[INFO] [stdout]    3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]      |                               ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]     ::: src/pool.rs:1290:9
[INFO] [stdout]      |
[INFO] [stdout] 1290 |         test_println!("drop OwnedRefMut: try clearing data");
[INFO] [stdout]      |         ---------------------------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]      = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]     --> src/macros.rs:3:31
[INFO] [stdout]      |
[INFO] [stdout]    3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]      |                               ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]     ::: src/pool.rs:1303:17
[INFO] [stdout]      |
[INFO] [stdout] 1303 |                 test_println!("-> shard does not exist! THIS IS A BUG");
[INFO] [stdout]      |                 ------------------------------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]      = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `loom`
[INFO] [stdout]  --> src/sync.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[cfg(all(loom, any(test, feature = "loom")))]
[INFO] [stdout]   |           ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `loom`
[INFO] [stdout]   --> src/sync.rs:63:15
[INFO] [stdout]    |
[INFO] [stdout] 63 | #[cfg(not(all(loom, any(feature = "loom", test))))]
[INFO] [stdout]    |               ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `loom`
[INFO] [stdout]   --> src/clear.rs:95:11
[INFO] [stdout]    |
[INFO] [stdout] 95 | #[cfg(all(loom, test))]
[INFO] [stdout]    |           ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/iter.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |         test_println!("UniqueIter::next");
[INFO] [stdout]    |         --------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/iter.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |             test_println!("-> try next slot");
[INFO] [stdout]    |             --------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/iter.rs:22:17
[INFO] [stdout]    |
[INFO] [stdout] 22 |                 test_println!("-> found an item!");
[INFO] [stdout]    |                 ---------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/iter.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |             test_println!("-> try next page");
[INFO] [stdout]    |             --------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/iter.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 |                 test_println!("-> found another page");
[INFO] [stdout]    |                 -------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/iter.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |             test_println!("-> try next shard");
[INFO] [stdout]    |             ---------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/iter.rs:35:17
[INFO] [stdout]    |
[INFO] [stdout] 35 |                 test_println!("-> found another shard");
[INFO] [stdout]    |                 --------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/iter.rs:38:17
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 test_println!("-> all done!");
[INFO] [stdout]    |                 ----------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:115:13
[INFO] [stdout]     |
[INFO] [stdout] 115 | /             test_println!(
[INFO] [stdout] 116 | |                 "-> get {:?}; current_gen={:?}; lifecycle={:#x}; state={:?}; refs={:?};",
[INFO] [stdout] 117 | |                 gen,
[INFO] [stdout] 118 | |                 current_gen,
[INFO] [stdout] ...   |
[INFO] [stdout] 121 | |                 refs,
[INFO] [stdout] 122 | |             );
[INFO] [stdout]     | |_____________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:129:17
[INFO] [stdout]     |
[INFO] [stdout] 129 |                 test_println!("-> get: no longer exists!");
[INFO] [stdout]     |                 ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:142:21
[INFO] [stdout]     |
[INFO] [stdout] 142 |                     test_println!("-> {:?}", new_refs);
[INFO] [stdout]     |                     ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:154:21
[INFO] [stdout]     |
[INFO] [stdout] 154 |                     test_println!("-> get: retrying; lifecycle={:#x};", actual);
[INFO] [stdout]     |                     ----------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:175:13
[INFO] [stdout]     |
[INFO] [stdout] 175 | /             test_println!(
[INFO] [stdout] 176 | |                 "-> mark_release; gen={:?}; current_gen={:?};",
[INFO] [stdout] 177 | |                 gen,
[INFO] [stdout] 178 | |                 curr_gen
[INFO] [stdout] 179 | |             );
[INFO] [stdout]     | |_____________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:187:13
[INFO] [stdout]     |
[INFO] [stdout] 187 |             test_println!("-> mark_release; state={:?};", state);
[INFO] [stdout]     |             ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:190:21
[INFO] [stdout]     |
[INFO] [stdout] 190 |                     test_println!("--> mark_release; cannot release (already removed!)");
[INFO] [stdout]     |                     -------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:194:21
[INFO] [stdout]     |
[INFO] [stdout] 194 |                     test_println!("--> mark_release; already marked;");
[INFO] [stdout]     |                     -------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:202:13
[INFO] [stdout]     |
[INFO] [stdout] 202 | /             test_println!(
[INFO] [stdout] 203 | |                 "-> mark_release; old_lifecycle={:#x}; new_lifecycle={:#x};",
[INFO] [stdout] 204 | |                 lifecycle,
[INFO] [stdout] 205 | |                 new_lifecycle
[INFO] [stdout] 206 | |             );
[INFO] [stdout]     | |_____________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:216:21
[INFO] [stdout]     |
[INFO] [stdout] 216 |                     test_println!("-> mark_release; retrying");
[INFO] [stdout]     |                     ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:224:9
[INFO] [stdout]     |
[INFO] [stdout] 224 |         test_println!("-> mark_release: marked; refs={:?};", refs);
[INFO] [stdout]     |         ---------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:246:13
[INFO] [stdout]     |
[INFO] [stdout] 246 | /             test_println!("-> release_with; lifecycle={:#x}; expected_gen={:?}; current_gen={:?}; next_gen={:?};",
[INFO] [stdout] 247 | |                 lifecycle,
[INFO] [stdout] 248 | |                 gen,
[INFO] [stdout] 249 | |                 current_gen,
[INFO] [stdout] 250 | |                 next_gen
[INFO] [stdout] 251 | |             );
[INFO] [stdout]     | |_____________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:258:17
[INFO] [stdout]     |
[INFO] [stdout] 258 |                 test_println!("-> already removed!");
[INFO] [stdout]     |                 ------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:275:21
[INFO] [stdout]     |
[INFO] [stdout] 275 |                     test_println!("-> advanced gen; lifecycle={:#x}; refs={:?};", actual, refs);
[INFO] [stdout]     |                     --------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:277:25
[INFO] [stdout]     |
[INFO] [stdout] 277 |                         test_println!("-> ok to remove!");
[INFO] [stdout]     |                         --------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:290:21
[INFO] [stdout]     |
[INFO] [stdout] 290 |                     test_println!("-> refs={:?}; spin...", refs);
[INFO] [stdout]     |                     -------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:296:21
[INFO] [stdout]     |
[INFO] [stdout] 296 |                     test_println!("-> retrying; lifecycle={:#x};", actual);
[INFO] [stdout]     |                     ------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:316:9
[INFO] [stdout]     |
[INFO] [stdout] 316 | /         test_println!(
[INFO] [stdout] 317 | |             "-> initialize_state; state={:?}; gen={:?}; refs={:?};",
[INFO] [stdout] 318 | |             Lifecycle::<C>::from_packed(lifecycle),
[INFO] [stdout] 319 | |             gen,
[INFO] [stdout] 320 | |             refs,
[INFO] [stdout] 321 | |         );
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:324:13
[INFO] [stdout]     |
[INFO] [stdout] 324 |             test_println!("-> initialize while referenced! cancelling");
[INFO] [stdout]     |             ----------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:363:9
[INFO] [stdout]     |
[INFO] [stdout] 363 |         test_println!("-> inserted at {:?}", gen);
[INFO] [stdout]     |         ----------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:389:17
[INFO] [stdout]     |
[INFO] [stdout] 389 | /                 test_println!(
[INFO] [stdout] 390 | |                     "-> try_remove_value; nothing exists at generation={:?}",
[INFO] [stdout] 391 | |                     gen
[INFO] [stdout] 392 | |                 );
[INFO] [stdout]     | |_________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:397:9
[INFO] [stdout]     |
[INFO] [stdout] 397 |         test_println!("-> try_remove_value; marked!");
[INFO] [stdout]     |         --------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:401:13
[INFO] [stdout]     |
[INFO] [stdout] 401 |             test_println!("-> try_remove_value; can remove now");
[INFO] [stdout]     |             ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:453:17
[INFO] [stdout]     |
[INFO] [stdout] 453 | /                 test_println!(
[INFO] [stdout] 454 | |                     "-> try_clear_storage; nothing exists at generation={:?}",
[INFO] [stdout] 455 | |                     gen
[INFO] [stdout] 456 | |                 );
[INFO] [stdout]     | |_________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:461:9
[INFO] [stdout]     |
[INFO] [stdout] 461 |         test_println!("-> try_clear_storage; marked!");
[INFO] [stdout]     |         ---------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:465:13
[INFO] [stdout]     |
[INFO] [stdout] 465 |             test_println!("-> try_remove_value; can clear now");
[INFO] [stdout]     |             --------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:485:13
[INFO] [stdout]     |
[INFO] [stdout] 485 |             test_println!("-> cleared: {}", cleared);
[INFO] [stdout]     |             ---------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:510:13
[INFO] [stdout]     |
[INFO] [stdout] 510 | /             test_println!(
[INFO] [stdout] 511 | |                 "-> drop guard: state={:?}; gen={:?}; refs={:?}; lifecycle={:#x}; new_lifecycle={:#x}; dropping={:?}",
[INFO] [stdout] 512 | |                 state,
[INFO] [stdout] 513 | |                 gen,
[INFO] [stdout] ...   |
[INFO] [stdout] 517 | |                 dropping
[INFO] [stdout] 518 | |             );
[INFO] [stdout]     | |_____________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:526:21
[INFO] [stdout]     |
[INFO] [stdout] 526 |                     test_println!("-> drop guard: done;  dropping={:?}", dropping);
[INFO] [stdout]     |                     -------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:530:21
[INFO] [stdout]     |
[INFO] [stdout] 530 |                     test_println!("-> drop guard; retry, actual={:#x}", actual);
[INFO] [stdout]     |                     ----------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:710:13
[INFO] [stdout]     |
[INFO] [stdout] 710 |             test_println!("-> get: {}; MAX={}", self.value, RefCount::<C>::MAX);
[INFO] [stdout]     |             ------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:830:9
[INFO] [stdout]     |
[INFO] [stdout] 830 | /         test_println!(
[INFO] [stdout] 831 | |             "InitGuard::release; curr_lifecycle={:?}; downgrading={}",
[INFO] [stdout] 832 | |             Lifecycle::<C>::from_packed(self.curr_lifecycle),
[INFO] [stdout] 833 | |             new_refs != 0,
[INFO] [stdout] 834 | |         );
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:836:13
[INFO] [stdout]     |
[INFO] [stdout] 836 |             test_println!("-> already released!");
[INFO] [stdout]     |             ------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:852:17
[INFO] [stdout]     |
[INFO] [stdout] 852 |                 test_println!("--> advanced to PRESENT; done");
[INFO] [stdout]     |                 ---------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:856:17
[INFO] [stdout]     |
[INFO] [stdout] 856 | /                 test_println!(
[INFO] [stdout] 857 | |                     "--> lifecycle changed; actual={:?}",
[INFO] [stdout] 858 | |                     Lifecycle::<C>::from_packed(actual)
[INFO] [stdout] 859 | |                 );
[INFO] [stdout]     | |_________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:870:13
[INFO] [stdout]     |
[INFO] [stdout] 870 | /             test_println!(
[INFO] [stdout] 871 | |                 "-> InitGuard::release; lifecycle={:#x}; state={:?}; refs={:?};",
[INFO] [stdout] 872 | |                 curr_lifecycle,
[INFO] [stdout] 873 | |                 state,
[INFO] [stdout] 874 | |                 refs,
[INFO] [stdout] 875 | |             );
[INFO] [stdout]     | |_____________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:889:21
[INFO] [stdout]     |
[INFO] [stdout] 889 |                     test_println!("-> InitGuard::RELEASE: done!");
[INFO] [stdout]     |                     --------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:894:21
[INFO] [stdout]     |
[INFO] [stdout] 894 |                     test_println!("-> InitGuard::release; retry, actual={:#x}", actual);
[INFO] [stdout]     |                     ------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `loom`
[INFO] [stdout]   --> src/page/stack.rs:72:11
[INFO] [stdout]    |
[INFO] [stdout] 72 | #[cfg(all(loom, test))]
[INFO] [stdout]    |           ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/page/stack.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |         test_println!("-> pop {:#x}", val);
[INFO] [stdout]    |         ---------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/page/stack.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |             test_println!("-> next {:#x}", next);
[INFO] [stdout]    |             ------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/page/stack.rs:43:21
[INFO] [stdout]    |
[INFO] [stdout] 43 |                     test_println!("-> retry!");
[INFO] [stdout]    |                     -------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/page/stack.rs:47:21
[INFO] [stdout]    |
[INFO] [stdout] 47 |                     test_println!("-> successful; next={:#x}", next);
[INFO] [stdout]    |                     ------------------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/mod.rs:146:9
[INFO] [stdout]     |
[INFO] [stdout] 146 |         test_println!("-> local head {:?}", head);
[INFO] [stdout]     |         ----------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/mod.rs:156:13
[INFO] [stdout]     |
[INFO] [stdout] 156 |             test_println!("-> remote head {:?}", head);
[INFO] [stdout]     |             ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/mod.rs:163:13
[INFO] [stdout]     |
[INFO] [stdout] 163 |             test_println!("-> NULL! {:?}", head);
[INFO] [stdout]     |             ------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/mod.rs:185:9
[INFO] [stdout]     |
[INFO] [stdout] 185 |         test_println!("-> offset {:?}", poff);
[INFO] [stdout]     |         ------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/mod.rs:214:9
[INFO] [stdout]     |
[INFO] [stdout] 214 |         test_println!("-> take: offset {:?}", offset);
[INFO] [stdout]     |         --------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/mod.rs:231:9
[INFO] [stdout]     |
[INFO] [stdout] 231 |         test_println!("-> offset {:?}", offset);
[INFO] [stdout]     |         --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/mod.rs:287:9
[INFO] [stdout]     |
[INFO] [stdout] 287 |         test_println!("-> init_with: insert at offset: {}", index);
[INFO] [stdout]     |         ---------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/mod.rs:294:9
[INFO] [stdout]     |
[INFO] [stdout] 294 |         test_println!("-> alloc new page ({})", self.size);
[INFO] [stdout]     |         -------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/mod.rs:318:9
[INFO] [stdout]     |
[INFO] [stdout] 318 |         test_println!("-> offset {:?}", offset);
[INFO] [stdout]     |         --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/mod.rs:338:9
[INFO] [stdout]     |
[INFO] [stdout] 338 |         test_println!("-> offset {:?}", offset);
[INFO] [stdout]     |         --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/shard.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |         test_println!("-> {:?}", addr);
[INFO] [stdout]    |         ------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:111:9
[INFO] [stdout]     |
[INFO] [stdout] 111 |         test_println!("-> remove_local {:?}", addr);
[INFO] [stdout]     |         ------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:125:9
[INFO] [stdout]     |
[INFO] [stdout] 125 |         test_println!("-> take_remote {:?}; page {:?}", addr, page_index);
[INFO] [stdout]     |         ----------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:172:13
[INFO] [stdout]     |
[INFO] [stdout] 172 |             test_println!("-> page {}; {:?}; {:?}", page_idx, local, page);
[INFO] [stdout]     |             -------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:208:9
[INFO] [stdout]     |
[INFO] [stdout] 208 | /         test_println!(
[INFO] [stdout] 209 | |             "-> clear_after_release; self.tid={:?}; current.tid={:?};",
[INFO] [stdout] 210 | |             tid,
[INFO] [stdout] 211 | |             self.tid
[INFO] [stdout] 212 | |         );
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:286:9
[INFO] [stdout]     |
[INFO] [stdout] 286 |         test_println!("-> get shard={}", idx);
[INFO] [stdout]     |         ------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:293:9
[INFO] [stdout]     |
[INFO] [stdout] 293 |         test_println!("current: {:?}", tid);
[INFO] [stdout]     |         ----------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:306:13
[INFO] [stdout]     |
[INFO] [stdout] 306 |             test_println!("-> allocated new shard for index {} at {:p}", idx, ptr);
[INFO] [stdout]     |             ---------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:315:13
[INFO] [stdout]     |
[INFO] [stdout] 315 |             test_println!("-> highest index={}, prev={}", std::cmp::max(max, idx), max);
[INFO] [stdout]     |             --------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:326:9
[INFO] [stdout]     |
[INFO] [stdout] 326 |         test_println!("Array::iter_mut");
[INFO] [stdout]     |         -------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:328:9
[INFO] [stdout]     |
[INFO] [stdout] 328 |         test_println!("-> highest index={}", max);
[INFO] [stdout]     |         ----------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:381:9
[INFO] [stdout]     |
[INFO] [stdout] 381 |         test_println!("---> loaded={:p} (order={:?})", ptr, order);
[INFO] [stdout]     |         ---------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:383:13
[INFO] [stdout]     |
[INFO] [stdout] 383 |             test_println!("---> null");
[INFO] [stdout]     |             -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:418:9
[INFO] [stdout]     |
[INFO] [stdout] 418 |         test_println!("IterMut::next");
[INFO] [stdout]     |         ------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:425:13
[INFO] [stdout]     |
[INFO] [stdout] 425 |             test_println!("-> next.is_some={}", next.is_some());
[INFO] [stdout]     |             --------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:427:17
[INFO] [stdout]     |
[INFO] [stdout] 427 |                 test_println!("-> done");
[INFO] [stdout]     |                 ------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `loom`
[INFO] [stdout]    --> src/tid.rs:185:15
[INFO] [stdout]     |
[INFO] [stdout] 185 | #[cfg(not(all(loom, any(feature = "loom", test))))]
[INFO] [stdout]     |               ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `loom`
[INFO] [stdout]    --> src/tid.rs:197:21
[INFO] [stdout]     |
[INFO] [stdout] 197 | #[cfg(all(test, not(loom)))]
[INFO] [stdout]     |                     ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:422:9
[INFO] [stdout]     |
[INFO] [stdout] 422 |         test_println!("insert {:?}", tid);
[INFO] [stdout]     |         --------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:457:9
[INFO] [stdout]     |
[INFO] [stdout] 457 |         test_println!("vacant_entry {:?}", tid);
[INFO] [stdout]     |         --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:518:9
[INFO] [stdout]     |
[INFO] [stdout] 518 |         test_println!("rm_deferred {:?}", tid);
[INFO] [stdout]     |         -------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:584:9
[INFO] [stdout]     |
[INFO] [stdout] 584 |         test_println!("rm {:?}", tid);
[INFO] [stdout]     |         ----------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:611:9
[INFO] [stdout]     |
[INFO] [stdout] 611 |         test_println!("get {:?}; current={:?}", tid, Tid::<C>::current());
[INFO] [stdout]     |         ----------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:709:9
[INFO] [stdout]     |
[INFO] [stdout] 709 |         test_println!("get_owned {:?}; current={:?}", tid, Tid::<C>::current());
[INFO] [stdout]     |         ----------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:960:9
[INFO] [stdout]     |
[INFO] [stdout] 960 |         test_println!("drop OwnedEntry: try clearing data");
[INFO] [stdout]     |         --------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:971:13
[INFO] [stdout]     |
[INFO] [stdout] 971 |             test_println!("-> shard={:?}", shard_idx);
[INFO] [stdout]     |             ----------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:975:17
[INFO] [stdout]     |
[INFO] [stdout] 975 |                 test_println!("-> shard={:?} does not exist! THIS IS A BUG", shard_idx);
[INFO] [stdout]     |                 ----------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "7d4bb3ffdb7836dc085f70f0a06537c0f235dfe664ef757f212c034fd7b66055", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d4bb3ffdb7836dc085f70f0a06537c0f235dfe664ef757f212c034fd7b66055", kill_on_drop: false }`
[INFO] [stdout] 7d4bb3ffdb7836dc085f70f0a06537c0f235dfe664ef757f212c034fd7b66055
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b4be80bad88e3f7e20134567b0ca0caa264518d308612f5439ecd0ca8a4d4b48
[INFO] running `Command { std: "docker" "start" "-a" "b4be80bad88e3f7e20134567b0ca0caa264518d308612f5439ecd0ca8a4d4b48", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling plotters-backend v0.3.7
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling unicode-width v0.1.14
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling tempfile v3.27.0
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling wait-timeout v0.2.1
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling bit-vec v0.8.0
[INFO] [stderr]    Compiling half v1.8.3
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling plotters-svg v0.3.7
[INFO] [stderr]    Compiling rayon v1.12.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling bit-set v0.8.0
[INFO] [stderr]    Compiling rand v0.9.4
[INFO] [stderr]    Compiling rand_xorshift v0.4.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling rusty-fork v0.3.1
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling oorandom v11.1.5
[INFO] [stderr]    Compiling unarray v0.1.4
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling memory-stats v1.2.0
[INFO] [stdout] warning: unexpected `cfg` condition name: `loom`
[INFO] [stdout]   --> src/macros.rs:15:17
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[cfg(all(test, loom))]
[INFO] [stdout]    |                 ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 32 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/pool.rs:453:9
[INFO] [stdout]     |
[INFO] [stdout] 453 |         test_println!("pool: create {:?}", tid);
[INFO] [stdout]     |         --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/pool.rs:621:9
[INFO] [stdout]     |
[INFO] [stdout] 621 |         test_println!("pool: create_owned {:?}", tid);
[INFO] [stdout]     |         --------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/pool.rs:655:9
[INFO] [stdout]     |
[INFO] [stdout] 655 |         test_println!("pool: create_with");
[INFO] [stdout]     |         ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/pool.rs:678:9
[INFO] [stdout]     |
[INFO] [stdout] 678 |         test_println!("pool: get{:?}; current={:?}", tid, Tid::<C>::current());
[INFO] [stdout]     |         ---------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/pool.rs:769:9
[INFO] [stdout]     |
[INFO] [stdout] 769 |         test_println!("pool: get{:?}; current={:?}", tid, Tid::<C>::current());
[INFO] [stdout]     |         ---------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/pool.rs:914:9
[INFO] [stdout]     |
[INFO] [stdout] 914 |         test_println!("drop Ref: try clearing data");
[INFO] [stdout]     |         -------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]     --> src/macros.rs:3:31
[INFO] [stdout]      |
[INFO] [stdout]    3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]      |                               ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]     ::: src/pool.rs:1049:9
[INFO] [stdout]      |
[INFO] [stdout] 1049 |         test_println!(" -> drop RefMut: try clearing data");
[INFO] [stdout]      |         --------------------------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]      = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]     --> src/macros.rs:3:31
[INFO] [stdout]      |
[INFO] [stdout]    3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]      |                               ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]     ::: src/pool.rs:1124:9
[INFO] [stdout]      |
[INFO] [stdout] 1124 |         test_println!("drop OwnedRef: try clearing data");
[INFO] [stdout]      |         ------------------------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]      = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]     --> src/macros.rs:3:31
[INFO] [stdout]      |
[INFO] [stdout]    3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]      |                               ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]     ::: src/pool.rs:1135:13
[INFO] [stdout]      |
[INFO] [stdout] 1135 |             test_println!("-> shard={:?}", shard_idx);
[INFO] [stdout]      |             ----------------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]      = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]     --> src/macros.rs:3:31
[INFO] [stdout]      |
[INFO] [stdout]    3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]      |                               ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]     ::: src/pool.rs:1139:17
[INFO] [stdout]      |
[INFO] [stdout] 1139 |                 test_println!("-> shard={:?} does not exist! THIS IS A BUG", shard_idx);
[INFO] [stdout]      |                 ----------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]      = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]     --> src/macros.rs:3:31
[INFO] [stdout]      |
[INFO] [stdout]    3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]      |                               ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]     ::: src/pool.rs:1238:9
[INFO] [stdout]      |
[INFO] [stdout] 1238 |         test_println!("-> shard={:?}", shard_idx);
[INFO] [stdout]      |         ----------------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]      = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]     --> src/macros.rs:3:31
[INFO] [stdout]      |
[INFO] [stdout]    3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]      |                               ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]     ::: src/pool.rs:1290:9
[INFO] [stdout]      |
[INFO] [stdout] 1290 |         test_println!("drop OwnedRefMut: try clearing data");
[INFO] [stdout]      |         ---------------------------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]      = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]     --> src/macros.rs:3:31
[INFO] [stdout]      |
[INFO] [stdout]    3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]      |                               ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]     ::: src/pool.rs:1303:17
[INFO] [stdout]      |
[INFO] [stdout] 1303 |                 test_println!("-> shard does not exist! THIS IS A BUG");
[INFO] [stdout]      |                 ------------------------------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]      = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `loom`
[INFO] [stdout]  --> src/sync.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[cfg(all(loom, any(test, feature = "loom")))]
[INFO] [stdout]   |           ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `loom`
[INFO] [stdout]   --> src/sync.rs:63:15
[INFO] [stdout]    |
[INFO] [stdout] 63 | #[cfg(not(all(loom, any(feature = "loom", test))))]
[INFO] [stdout]    |               ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `loom`
[INFO] [stdout]   --> src/clear.rs:95:11
[INFO] [stdout]    |
[INFO] [stdout] 95 | #[cfg(all(loom, test))]
[INFO] [stdout]    |           ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/iter.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |         test_println!("UniqueIter::next");
[INFO] [stdout]    |         --------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/iter.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |             test_println!("-> try next slot");
[INFO] [stdout]    |             --------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/iter.rs:22:17
[INFO] [stdout]    |
[INFO] [stdout] 22 |                 test_println!("-> found an item!");
[INFO] [stdout]    |                 ---------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/iter.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |             test_println!("-> try next page");
[INFO] [stdout]    |             --------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/iter.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 |                 test_println!("-> found another page");
[INFO] [stdout]    |                 -------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/iter.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |             test_println!("-> try next shard");
[INFO] [stdout]    |             ---------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/iter.rs:35:17
[INFO] [stdout]    |
[INFO] [stdout] 35 |                 test_println!("-> found another shard");
[INFO] [stdout]    |                 --------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/iter.rs:38:17
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 test_println!("-> all done!");
[INFO] [stdout]    |                 ----------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:115:13
[INFO] [stdout]     |
[INFO] [stdout] 115 | /             test_println!(
[INFO] [stdout] 116 | |                 "-> get {:?}; current_gen={:?}; lifecycle={:#x}; state={:?}; refs={:?};",
[INFO] [stdout] 117 | |                 gen,
[INFO] [stdout] 118 | |                 current_gen,
[INFO] [stdout] ...   |
[INFO] [stdout] 121 | |                 refs,
[INFO] [stdout] 122 | |             );
[INFO] [stdout]     | |_____________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:129:17
[INFO] [stdout]     |
[INFO] [stdout] 129 |                 test_println!("-> get: no longer exists!");
[INFO] [stdout]     |                 ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:142:21
[INFO] [stdout]     |
[INFO] [stdout] 142 |                     test_println!("-> {:?}", new_refs);
[INFO] [stdout]     |                     ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:154:21
[INFO] [stdout]     |
[INFO] [stdout] 154 |                     test_println!("-> get: retrying; lifecycle={:#x};", actual);
[INFO] [stdout]     |                     ----------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:175:13
[INFO] [stdout]     |
[INFO] [stdout] 175 | /             test_println!(
[INFO] [stdout] 176 | |                 "-> mark_release; gen={:?}; current_gen={:?};",
[INFO] [stdout] 177 | |                 gen,
[INFO] [stdout] 178 | |                 curr_gen
[INFO] [stdout] 179 | |             );
[INFO] [stdout]     | |_____________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:187:13
[INFO] [stdout]     |
[INFO] [stdout] 187 |             test_println!("-> mark_release; state={:?};", state);
[INFO] [stdout]     |             ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:190:21
[INFO] [stdout]     |
[INFO] [stdout] 190 |                     test_println!("--> mark_release; cannot release (already removed!)");
[INFO] [stdout]     |                     -------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:194:21
[INFO] [stdout]     |
[INFO] [stdout] 194 |                     test_println!("--> mark_release; already marked;");
[INFO] [stdout]     |                     -------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:202:13
[INFO] [stdout]     |
[INFO] [stdout] 202 | /             test_println!(
[INFO] [stdout] 203 | |                 "-> mark_release; old_lifecycle={:#x}; new_lifecycle={:#x};",
[INFO] [stdout] 204 | |                 lifecycle,
[INFO] [stdout] 205 | |                 new_lifecycle
[INFO] [stdout] 206 | |             );
[INFO] [stdout]     | |_____________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:216:21
[INFO] [stdout]     |
[INFO] [stdout] 216 |                     test_println!("-> mark_release; retrying");
[INFO] [stdout]     |                     ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:224:9
[INFO] [stdout]     |
[INFO] [stdout] 224 |         test_println!("-> mark_release: marked; refs={:?};", refs);
[INFO] [stdout]     |         ---------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:246:13
[INFO] [stdout]     |
[INFO] [stdout] 246 | /             test_println!("-> release_with; lifecycle={:#x}; expected_gen={:?}; current_gen={:?}; next_gen={:?};",
[INFO] [stdout] 247 | |                 lifecycle,
[INFO] [stdout] 248 | |                 gen,
[INFO] [stdout] 249 | |                 current_gen,
[INFO] [stdout] 250 | |                 next_gen
[INFO] [stdout] 251 | |             );
[INFO] [stdout]     | |_____________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:258:17
[INFO] [stdout]     |
[INFO] [stdout] 258 |                 test_println!("-> already removed!");
[INFO] [stdout]     |                 ------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:275:21
[INFO] [stdout]     |
[INFO] [stdout] 275 |                     test_println!("-> advanced gen; lifecycle={:#x}; refs={:?};", actual, refs);
[INFO] [stdout]     |                     --------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:277:25
[INFO] [stdout]     |
[INFO] [stdout] 277 |                         test_println!("-> ok to remove!");
[INFO] [stdout]     |                         --------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:290:21
[INFO] [stdout]     |
[INFO] [stdout] 290 |                     test_println!("-> refs={:?}; spin...", refs);
[INFO] [stdout]     |                     -------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:296:21
[INFO] [stdout]     |
[INFO] [stdout] 296 |                     test_println!("-> retrying; lifecycle={:#x};", actual);
[INFO] [stdout]     |                     ------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:316:9
[INFO] [stdout]     |
[INFO] [stdout] 316 | /         test_println!(
[INFO] [stdout] 317 | |             "-> initialize_state; state={:?}; gen={:?}; refs={:?};",
[INFO] [stdout] 318 | |             Lifecycle::<C>::from_packed(lifecycle),
[INFO] [stdout] 319 | |             gen,
[INFO] [stdout] 320 | |             refs,
[INFO] [stdout] 321 | |         );
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:324:13
[INFO] [stdout]     |
[INFO] [stdout] 324 |             test_println!("-> initialize while referenced! cancelling");
[INFO] [stdout]     |             ----------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:363:9
[INFO] [stdout]     |
[INFO] [stdout] 363 |         test_println!("-> inserted at {:?}", gen);
[INFO] [stdout]     |         ----------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:389:17
[INFO] [stdout]     |
[INFO] [stdout] 389 | /                 test_println!(
[INFO] [stdout] 390 | |                     "-> try_remove_value; nothing exists at generation={:?}",
[INFO] [stdout] 391 | |                     gen
[INFO] [stdout] 392 | |                 );
[INFO] [stdout]     | |_________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:397:9
[INFO] [stdout]     |
[INFO] [stdout] 397 |         test_println!("-> try_remove_value; marked!");
[INFO] [stdout]     |         --------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:401:13
[INFO] [stdout]     |
[INFO] [stdout] 401 |             test_println!("-> try_remove_value; can remove now");
[INFO] [stdout]     |             ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:453:17
[INFO] [stdout]     |
[INFO] [stdout] 453 | /                 test_println!(
[INFO] [stdout] 454 | |                     "-> try_clear_storage; nothing exists at generation={:?}",
[INFO] [stdout] 455 | |                     gen
[INFO] [stdout] 456 | |                 );
[INFO] [stdout]     | |_________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:461:9
[INFO] [stdout]     |
[INFO] [stdout] 461 |         test_println!("-> try_clear_storage; marked!");
[INFO] [stdout]     |         ---------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:465:13
[INFO] [stdout]     |
[INFO] [stdout] 465 |             test_println!("-> try_remove_value; can clear now");
[INFO] [stdout]     |             --------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:485:13
[INFO] [stdout]     |
[INFO] [stdout] 485 |             test_println!("-> cleared: {}", cleared);
[INFO] [stdout]     |             ---------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:510:13
[INFO] [stdout]     |
[INFO] [stdout] 510 | /             test_println!(
[INFO] [stdout] 511 | |                 "-> drop guard: state={:?}; gen={:?}; refs={:?}; lifecycle={:#x}; new_lifecycle={:#x}; dropping={:?}",
[INFO] [stdout] 512 | |                 state,
[INFO] [stdout] 513 | |                 gen,
[INFO] [stdout] ...   |
[INFO] [stdout] 517 | |                 dropping
[INFO] [stdout] 518 | |             );
[INFO] [stdout]     | |_____________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:526:21
[INFO] [stdout]     |
[INFO] [stdout] 526 |                     test_println!("-> drop guard: done;  dropping={:?}", dropping);
[INFO] [stdout]     |                     -------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:530:21
[INFO] [stdout]     |
[INFO] [stdout] 530 |                     test_println!("-> drop guard; retry, actual={:#x}", actual);
[INFO] [stdout]     |                     ----------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:710:13
[INFO] [stdout]     |
[INFO] [stdout] 710 |             test_println!("-> get: {}; MAX={}", self.value, RefCount::<C>::MAX);
[INFO] [stdout]     |             ------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:830:9
[INFO] [stdout]     |
[INFO] [stdout] 830 | /         test_println!(
[INFO] [stdout] 831 | |             "InitGuard::release; curr_lifecycle={:?}; downgrading={}",
[INFO] [stdout] 832 | |             Lifecycle::<C>::from_packed(self.curr_lifecycle),
[INFO] [stdout] 833 | |             new_refs != 0,
[INFO] [stdout] 834 | |         );
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:836:13
[INFO] [stdout]     |
[INFO] [stdout] 836 |             test_println!("-> already released!");
[INFO] [stdout]     |             ------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:852:17
[INFO] [stdout]     |
[INFO] [stdout] 852 |                 test_println!("--> advanced to PRESENT; done");
[INFO] [stdout]     |                 ---------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:856:17
[INFO] [stdout]     |
[INFO] [stdout] 856 | /                 test_println!(
[INFO] [stdout] 857 | |                     "--> lifecycle changed; actual={:?}",
[INFO] [stdout] 858 | |                     Lifecycle::<C>::from_packed(actual)
[INFO] [stdout] 859 | |                 );
[INFO] [stdout]     | |_________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:870:13
[INFO] [stdout]     |
[INFO] [stdout] 870 | /             test_println!(
[INFO] [stdout] 871 | |                 "-> InitGuard::release; lifecycle={:#x}; state={:?}; refs={:?};",
[INFO] [stdout] 872 | |                 curr_lifecycle,
[INFO] [stdout] 873 | |                 state,
[INFO] [stdout] 874 | |                 refs,
[INFO] [stdout] 875 | |             );
[INFO] [stdout]     | |_____________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:889:21
[INFO] [stdout]     |
[INFO] [stdout] 889 |                     test_println!("-> InitGuard::RELEASE: done!");
[INFO] [stdout]     |                     --------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:894:21
[INFO] [stdout]     |
[INFO] [stdout] 894 |                     test_println!("-> InitGuard::release; retry, actual={:#x}", actual);
[INFO] [stdout]     |                     ------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `loom`
[INFO] [stdout]   --> src/page/stack.rs:72:11
[INFO] [stdout]    |
[INFO] [stdout] 72 | #[cfg(all(loom, test))]
[INFO] [stdout]    |           ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/page/stack.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |         test_println!("-> pop {:#x}", val);
[INFO] [stdout]    |         ---------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/page/stack.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |             test_println!("-> next {:#x}", next);
[INFO] [stdout]    |             ------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/page/stack.rs:43:21
[INFO] [stdout]    |
[INFO] [stdout] 43 |                     test_println!("-> retry!");
[INFO] [stdout]    |                     -------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/page/stack.rs:47:21
[INFO] [stdout]    |
[INFO] [stdout] 47 |                     test_println!("-> successful; next={:#x}", next);
[INFO] [stdout]    |                     ------------------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/mod.rs:146:9
[INFO] [stdout]     |
[INFO] [stdout] 146 |         test_println!("-> local head {:?}", head);
[INFO] [stdout]     |         ----------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/mod.rs:156:13
[INFO] [stdout]     |
[INFO] [stdout] 156 |             test_println!("-> remote head {:?}", head);
[INFO] [stdout]     |             ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/mod.rs:163:13
[INFO] [stdout]     |
[INFO] [stdout] 163 |             test_println!("-> NULL! {:?}", head);
[INFO] [stdout]     |             ------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/mod.rs:185:9
[INFO] [stdout]     |
[INFO] [stdout] 185 |         test_println!("-> offset {:?}", poff);
[INFO] [stdout]     |         ------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/mod.rs:214:9
[INFO] [stdout]     |
[INFO] [stdout] 214 |         test_println!("-> take: offset {:?}", offset);
[INFO] [stdout]     |         --------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/mod.rs:231:9
[INFO] [stdout]     |
[INFO] [stdout] 231 |         test_println!("-> offset {:?}", offset);
[INFO] [stdout]     |         --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/mod.rs:287:9
[INFO] [stdout]     |
[INFO] [stdout] 287 |         test_println!("-> init_with: insert at offset: {}", index);
[INFO] [stdout]     |         ---------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/mod.rs:294:9
[INFO] [stdout]     |
[INFO] [stdout] 294 |         test_println!("-> alloc new page ({})", self.size);
[INFO] [stdout]     |         -------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/mod.rs:318:9
[INFO] [stdout]     |
[INFO] [stdout] 318 |         test_println!("-> offset {:?}", offset);
[INFO] [stdout]     |         --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/mod.rs:338:9
[INFO] [stdout]     |
[INFO] [stdout] 338 |         test_println!("-> offset {:?}", offset);
[INFO] [stdout]     |         --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/shard.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |         test_println!("-> {:?}", addr);
[INFO] [stdout]    |         ------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:111:9
[INFO] [stdout]     |
[INFO] [stdout] 111 |         test_println!("-> remove_local {:?}", addr);
[INFO] [stdout]     |         ------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:125:9
[INFO] [stdout]     |
[INFO] [stdout] 125 |         test_println!("-> take_remote {:?}; page {:?}", addr, page_index);
[INFO] [stdout]     |         ----------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:172:13
[INFO] [stdout]     |
[INFO] [stdout] 172 |             test_println!("-> page {}; {:?}; {:?}", page_idx, local, page);
[INFO] [stdout]     |             -------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:208:9
[INFO] [stdout]     |
[INFO] [stdout] 208 | /         test_println!(
[INFO] [stdout] 209 | |             "-> clear_after_release; self.tid={:?}; current.tid={:?};",
[INFO] [stdout] 210 | |             tid,
[INFO] [stdout] 211 | |             self.tid
[INFO] [stdout] 212 | |         );
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:286:9
[INFO] [stdout]     |
[INFO] [stdout] 286 |         test_println!("-> get shard={}", idx);
[INFO] [stdout]     |         ------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:293:9
[INFO] [stdout]     |
[INFO] [stdout] 293 |         test_println!("current: {:?}", tid);
[INFO] [stdout]     |         ----------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:306:13
[INFO] [stdout]     |
[INFO] [stdout] 306 |             test_println!("-> allocated new shard for index {} at {:p}", idx, ptr);
[INFO] [stdout]     |             ---------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:315:13
[INFO] [stdout]     |
[INFO] [stdout] 315 |             test_println!("-> highest index={}, prev={}", std::cmp::max(max, idx), max);
[INFO] [stdout]     |             --------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:326:9
[INFO] [stdout]     |
[INFO] [stdout] 326 |         test_println!("Array::iter_mut");
[INFO] [stdout]     |         -------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:328:9
[INFO] [stdout]     |
[INFO] [stdout] 328 |         test_println!("-> highest index={}", max);
[INFO] [stdout]     |         ----------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:381:9
[INFO] [stdout]     |
[INFO] [stdout] 381 |         test_println!("---> loaded={:p} (order={:?})", ptr, order);
[INFO] [stdout]     |         ---------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:383:13
[INFO] [stdout]     |
[INFO] [stdout] 383 |             test_println!("---> null");
[INFO] [stdout]     |             -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:418:9
[INFO] [stdout]     |
[INFO] [stdout] 418 |         test_println!("IterMut::next");
[INFO] [stdout]     |         ------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:425:13
[INFO] [stdout]     |
[INFO] [stdout] 425 |             test_println!("-> next.is_some={}", next.is_some());
[INFO] [stdout]     |             --------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:427:17
[INFO] [stdout]     |
[INFO] [stdout] 427 |                 test_println!("-> done");
[INFO] [stdout]     |                 ------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `loom`
[INFO] [stdout]    --> src/tid.rs:185:15
[INFO] [stdout]     |
[INFO] [stdout] 185 | #[cfg(not(all(loom, any(feature = "loom", test))))]
[INFO] [stdout]     |               ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `loom`
[INFO] [stdout]    --> src/tid.rs:197:21
[INFO] [stdout]     |
[INFO] [stdout] 197 | #[cfg(all(test, not(loom)))]
[INFO] [stdout]     |                     ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:422:9
[INFO] [stdout]     |
[INFO] [stdout] 422 |         test_println!("insert {:?}", tid);
[INFO] [stdout]     |         --------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:457:9
[INFO] [stdout]     |
[INFO] [stdout] 457 |         test_println!("vacant_entry {:?}", tid);
[INFO] [stdout]     |         --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:518:9
[INFO] [stdout]     |
[INFO] [stdout] 518 |         test_println!("rm_deferred {:?}", tid);
[INFO] [stdout]     |         -------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:584:9
[INFO] [stdout]     |
[INFO] [stdout] 584 |         test_println!("rm {:?}", tid);
[INFO] [stdout]     |         ----------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:611:9
[INFO] [stdout]     |
[INFO] [stdout] 611 |         test_println!("get {:?}; current={:?}", tid, Tid::<C>::current());
[INFO] [stdout]     |         ----------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:709:9
[INFO] [stdout]     |
[INFO] [stdout] 709 |         test_println!("get_owned {:?}; current={:?}", tid, Tid::<C>::current());
[INFO] [stdout]     |         ----------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:960:9
[INFO] [stdout]     |
[INFO] [stdout] 960 |         test_println!("drop OwnedEntry: try clearing data");
[INFO] [stdout]     |         --------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:971:13
[INFO] [stdout]     |
[INFO] [stdout] 971 |             test_println!("-> shard={:?}", shard_idx);
[INFO] [stdout]     |             ----------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:975:17
[INFO] [stdout]     |
[INFO] [stdout] 975 |                 test_println!("-> shard={:?} does not exist! THIS IS A BUG", shard_idx);
[INFO] [stdout]     |                 ----------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling csv-core v0.1.13
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling csv v1.4.0
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling proptest v1.11.0
[INFO] [stderr]    Compiling criterion-plot v0.4.5
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling criterion v0.3.6
[INFO] [stderr]    Compiling sharded-slab v0.1.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `loom`
[INFO] [stdout]   --> src/macros.rs:15:17
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[cfg(all(test, loom))]
[INFO] [stdout]    |                 ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 32 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/pool.rs:453:9
[INFO] [stdout]     |
[INFO] [stdout] 453 |         test_println!("pool: create {:?}", tid);
[INFO] [stdout]     |         --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/pool.rs:621:9
[INFO] [stdout]     |
[INFO] [stdout] 621 |         test_println!("pool: create_owned {:?}", tid);
[INFO] [stdout]     |         --------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/pool.rs:655:9
[INFO] [stdout]     |
[INFO] [stdout] 655 |         test_println!("pool: create_with");
[INFO] [stdout]     |         ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/pool.rs:678:9
[INFO] [stdout]     |
[INFO] [stdout] 678 |         test_println!("pool: get{:?}; current={:?}", tid, Tid::<C>::current());
[INFO] [stdout]     |         ---------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/pool.rs:769:9
[INFO] [stdout]     |
[INFO] [stdout] 769 |         test_println!("pool: get{:?}; current={:?}", tid, Tid::<C>::current());
[INFO] [stdout]     |         ---------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/pool.rs:914:9
[INFO] [stdout]     |
[INFO] [stdout] 914 |         test_println!("drop Ref: try clearing data");
[INFO] [stdout]     |         -------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]     --> src/macros.rs:3:31
[INFO] [stdout]      |
[INFO] [stdout]    3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]      |                               ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]     ::: src/pool.rs:1049:9
[INFO] [stdout]      |
[INFO] [stdout] 1049 |         test_println!(" -> drop RefMut: try clearing data");
[INFO] [stdout]      |         --------------------------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]      = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]     --> src/macros.rs:3:31
[INFO] [stdout]      |
[INFO] [stdout]    3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]      |                               ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]     ::: src/pool.rs:1124:9
[INFO] [stdout]      |
[INFO] [stdout] 1124 |         test_println!("drop OwnedRef: try clearing data");
[INFO] [stdout]      |         ------------------------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]      = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]     --> src/macros.rs:3:31
[INFO] [stdout]      |
[INFO] [stdout]    3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]      |                               ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]     ::: src/pool.rs:1135:13
[INFO] [stdout]      |
[INFO] [stdout] 1135 |             test_println!("-> shard={:?}", shard_idx);
[INFO] [stdout]      |             ----------------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]      = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]     --> src/macros.rs:3:31
[INFO] [stdout]      |
[INFO] [stdout]    3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]      |                               ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]     ::: src/pool.rs:1139:17
[INFO] [stdout]      |
[INFO] [stdout] 1139 |                 test_println!("-> shard={:?} does not exist! THIS IS A BUG", shard_idx);
[INFO] [stdout]      |                 ----------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]      = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]     --> src/macros.rs:3:31
[INFO] [stdout]      |
[INFO] [stdout]    3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]      |                               ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]     ::: src/pool.rs:1238:9
[INFO] [stdout]      |
[INFO] [stdout] 1238 |         test_println!("-> shard={:?}", shard_idx);
[INFO] [stdout]      |         ----------------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]      = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]     --> src/macros.rs:3:31
[INFO] [stdout]      |
[INFO] [stdout]    3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]      |                               ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]     ::: src/pool.rs:1290:9
[INFO] [stdout]      |
[INFO] [stdout] 1290 |         test_println!("drop OwnedRefMut: try clearing data");
[INFO] [stdout]      |         ---------------------------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]      = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]     --> src/macros.rs:3:31
[INFO] [stdout]      |
[INFO] [stdout]    3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]      |                               ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]     ::: src/pool.rs:1303:17
[INFO] [stdout]      |
[INFO] [stdout] 1303 |                 test_println!("-> shard does not exist! THIS IS A BUG");
[INFO] [stdout]      |                 ------------------------------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]      = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `loom`
[INFO] [stdout]    --> src/cfg.rs:175:16
[INFO] [stdout]     |
[INFO] [stdout] 175 |     #[cfg_attr(loom, ignore)]
[INFO] [stdout]     |                ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `loom`
[INFO] [stdout]    --> src/cfg.rs:193:16
[INFO] [stdout]     |
[INFO] [stdout] 193 |     #[cfg_attr(loom, ignore)]
[INFO] [stdout]     |                ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `loom`
[INFO] [stdout]    --> src/cfg.rs:205:16
[INFO] [stdout]     |
[INFO] [stdout] 205 |     #[cfg_attr(loom, ignore)]
[INFO] [stdout]     |                ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `loom`
[INFO] [stdout]  --> src/sync.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[cfg(all(loom, any(test, feature = "loom")))]
[INFO] [stdout]   |           ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `loom`
[INFO] [stdout]   --> src/sync.rs:63:15
[INFO] [stdout]    |
[INFO] [stdout] 63 | #[cfg(not(all(loom, any(feature = "loom", test))))]
[INFO] [stdout]    |               ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `loom`
[INFO] [stdout]   --> src/clear.rs:95:11
[INFO] [stdout]    |
[INFO] [stdout] 95 | #[cfg(all(loom, test))]
[INFO] [stdout]    |           ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/iter.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |         test_println!("UniqueIter::next");
[INFO] [stdout]    |         --------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/iter.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |             test_println!("-> try next slot");
[INFO] [stdout]    |             --------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/iter.rs:22:17
[INFO] [stdout]    |
[INFO] [stdout] 22 |                 test_println!("-> found an item!");
[INFO] [stdout]    |                 ---------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/iter.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |             test_println!("-> try next page");
[INFO] [stdout]    |             --------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/iter.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 |                 test_println!("-> found another page");
[INFO] [stdout]    |                 -------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/iter.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |             test_println!("-> try next shard");
[INFO] [stdout]    |             ---------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/iter.rs:35:17
[INFO] [stdout]    |
[INFO] [stdout] 35 |                 test_println!("-> found another shard");
[INFO] [stdout]    |                 --------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/iter.rs:38:17
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 test_println!("-> all done!");
[INFO] [stdout]    |                 ----------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:115:13
[INFO] [stdout]     |
[INFO] [stdout] 115 | /             test_println!(
[INFO] [stdout] 116 | |                 "-> get {:?}; current_gen={:?}; lifecycle={:#x}; state={:?}; refs={:?};",
[INFO] [stdout] 117 | |                 gen,
[INFO] [stdout] 118 | |                 current_gen,
[INFO] [stdout] ...   |
[INFO] [stdout] 121 | |                 refs,
[INFO] [stdout] 122 | |             );
[INFO] [stdout]     | |_____________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:129:17
[INFO] [stdout]     |
[INFO] [stdout] 129 |                 test_println!("-> get: no longer exists!");
[INFO] [stdout]     |                 ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:142:21
[INFO] [stdout]     |
[INFO] [stdout] 142 |                     test_println!("-> {:?}", new_refs);
[INFO] [stdout]     |                     ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:154:21
[INFO] [stdout]     |
[INFO] [stdout] 154 |                     test_println!("-> get: retrying; lifecycle={:#x};", actual);
[INFO] [stdout]     |                     ----------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:175:13
[INFO] [stdout]     |
[INFO] [stdout] 175 | /             test_println!(
[INFO] [stdout] 176 | |                 "-> mark_release; gen={:?}; current_gen={:?};",
[INFO] [stdout] 177 | |                 gen,
[INFO] [stdout] 178 | |                 curr_gen
[INFO] [stdout] 179 | |             );
[INFO] [stdout]     | |_____________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:187:13
[INFO] [stdout]     |
[INFO] [stdout] 187 |             test_println!("-> mark_release; state={:?};", state);
[INFO] [stdout]     |             ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:190:21
[INFO] [stdout]     |
[INFO] [stdout] 190 |                     test_println!("--> mark_release; cannot release (already removed!)");
[INFO] [stdout]     |                     -------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:194:21
[INFO] [stdout]     |
[INFO] [stdout] 194 |                     test_println!("--> mark_release; already marked;");
[INFO] [stdout]     |                     -------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:202:13
[INFO] [stdout]     |
[INFO] [stdout] 202 | /             test_println!(
[INFO] [stdout] 203 | |                 "-> mark_release; old_lifecycle={:#x}; new_lifecycle={:#x};",
[INFO] [stdout] 204 | |                 lifecycle,
[INFO] [stdout] 205 | |                 new_lifecycle
[INFO] [stdout] 206 | |             );
[INFO] [stdout]     | |_____________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:216:21
[INFO] [stdout]     |
[INFO] [stdout] 216 |                     test_println!("-> mark_release; retrying");
[INFO] [stdout]     |                     ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:224:9
[INFO] [stdout]     |
[INFO] [stdout] 224 |         test_println!("-> mark_release: marked; refs={:?};", refs);
[INFO] [stdout]     |         ---------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:246:13
[INFO] [stdout]     |
[INFO] [stdout] 246 | /             test_println!("-> release_with; lifecycle={:#x}; expected_gen={:?}; current_gen={:?}; next_gen={:?};",
[INFO] [stdout] 247 | |                 lifecycle,
[INFO] [stdout] 248 | |                 gen,
[INFO] [stdout] 249 | |                 current_gen,
[INFO] [stdout] 250 | |                 next_gen
[INFO] [stdout] 251 | |             );
[INFO] [stdout]     | |_____________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:258:17
[INFO] [stdout]     |
[INFO] [stdout] 258 |                 test_println!("-> already removed!");
[INFO] [stdout]     |                 ------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:275:21
[INFO] [stdout]     |
[INFO] [stdout] 275 |                     test_println!("-> advanced gen; lifecycle={:#x}; refs={:?};", actual, refs);
[INFO] [stdout]     |                     --------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:277:25
[INFO] [stdout]     |
[INFO] [stdout] 277 |                         test_println!("-> ok to remove!");
[INFO] [stdout]     |                         --------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:290:21
[INFO] [stdout]     |
[INFO] [stdout] 290 |                     test_println!("-> refs={:?}; spin...", refs);
[INFO] [stdout]     |                     -------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:296:21
[INFO] [stdout]     |
[INFO] [stdout] 296 |                     test_println!("-> retrying; lifecycle={:#x};", actual);
[INFO] [stdout]     |                     ------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:316:9
[INFO] [stdout]     |
[INFO] [stdout] 316 | /         test_println!(
[INFO] [stdout] 317 | |             "-> initialize_state; state={:?}; gen={:?}; refs={:?};",
[INFO] [stdout] 318 | |             Lifecycle::<C>::from_packed(lifecycle),
[INFO] [stdout] 319 | |             gen,
[INFO] [stdout] 320 | |             refs,
[INFO] [stdout] 321 | |         );
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:324:13
[INFO] [stdout]     |
[INFO] [stdout] 324 |             test_println!("-> initialize while referenced! cancelling");
[INFO] [stdout]     |             ----------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:363:9
[INFO] [stdout]     |
[INFO] [stdout] 363 |         test_println!("-> inserted at {:?}", gen);
[INFO] [stdout]     |         ----------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:389:17
[INFO] [stdout]     |
[INFO] [stdout] 389 | /                 test_println!(
[INFO] [stdout] 390 | |                     "-> try_remove_value; nothing exists at generation={:?}",
[INFO] [stdout] 391 | |                     gen
[INFO] [stdout] 392 | |                 );
[INFO] [stdout]     | |_________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:397:9
[INFO] [stdout]     |
[INFO] [stdout] 397 |         test_println!("-> try_remove_value; marked!");
[INFO] [stdout]     |         --------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:401:13
[INFO] [stdout]     |
[INFO] [stdout] 401 |             test_println!("-> try_remove_value; can remove now");
[INFO] [stdout]     |             ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:453:17
[INFO] [stdout]     |
[INFO] [stdout] 453 | /                 test_println!(
[INFO] [stdout] 454 | |                     "-> try_clear_storage; nothing exists at generation={:?}",
[INFO] [stdout] 455 | |                     gen
[INFO] [stdout] 456 | |                 );
[INFO] [stdout]     | |_________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:461:9
[INFO] [stdout]     |
[INFO] [stdout] 461 |         test_println!("-> try_clear_storage; marked!");
[INFO] [stdout]     |         ---------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:465:13
[INFO] [stdout]     |
[INFO] [stdout] 465 |             test_println!("-> try_remove_value; can clear now");
[INFO] [stdout]     |             --------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:485:13
[INFO] [stdout]     |
[INFO] [stdout] 485 |             test_println!("-> cleared: {}", cleared);
[INFO] [stdout]     |             ---------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:510:13
[INFO] [stdout]     |
[INFO] [stdout] 510 | /             test_println!(
[INFO] [stdout] 511 | |                 "-> drop guard: state={:?}; gen={:?}; refs={:?}; lifecycle={:#x}; new_lifecycle={:#x}; dropping={:?}",
[INFO] [stdout] 512 | |                 state,
[INFO] [stdout] 513 | |                 gen,
[INFO] [stdout] ...   |
[INFO] [stdout] 517 | |                 dropping
[INFO] [stdout] 518 | |             );
[INFO] [stdout]     | |_____________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:526:21
[INFO] [stdout]     |
[INFO] [stdout] 526 |                     test_println!("-> drop guard: done;  dropping={:?}", dropping);
[INFO] [stdout]     |                     -------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:530:21
[INFO] [stdout]     |
[INFO] [stdout] 530 |                     test_println!("-> drop guard; retry, actual={:#x}", actual);
[INFO] [stdout]     |                     ----------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:710:13
[INFO] [stdout]     |
[INFO] [stdout] 710 |             test_println!("-> get: {}; MAX={}", self.value, RefCount::<C>::MAX);
[INFO] [stdout]     |             ------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:830:9
[INFO] [stdout]     |
[INFO] [stdout] 830 | /         test_println!(
[INFO] [stdout] 831 | |             "InitGuard::release; curr_lifecycle={:?}; downgrading={}",
[INFO] [stdout] 832 | |             Lifecycle::<C>::from_packed(self.curr_lifecycle),
[INFO] [stdout] 833 | |             new_refs != 0,
[INFO] [stdout] 834 | |         );
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:836:13
[INFO] [stdout]     |
[INFO] [stdout] 836 |             test_println!("-> already released!");
[INFO] [stdout]     |             ------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:852:17
[INFO] [stdout]     |
[INFO] [stdout] 852 |                 test_println!("--> advanced to PRESENT; done");
[INFO] [stdout]     |                 ---------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:856:17
[INFO] [stdout]     |
[INFO] [stdout] 856 | /                 test_println!(
[INFO] [stdout] 857 | |                     "--> lifecycle changed; actual={:?}",
[INFO] [stdout] 858 | |                     Lifecycle::<C>::from_packed(actual)
[INFO] [stdout] 859 | |                 );
[INFO] [stdout]     | |_________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:870:13
[INFO] [stdout]     |
[INFO] [stdout] 870 | /             test_println!(
[INFO] [stdout] 871 | |                 "-> InitGuard::release; lifecycle={:#x}; state={:?}; refs={:?};",
[INFO] [stdout] 872 | |                 curr_lifecycle,
[INFO] [stdout] 873 | |                 state,
[INFO] [stdout] 874 | |                 refs,
[INFO] [stdout] 875 | |             );
[INFO] [stdout]     | |_____________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:889:21
[INFO] [stdout]     |
[INFO] [stdout] 889 |                     test_println!("-> InitGuard::RELEASE: done!");
[INFO] [stdout]     |                     --------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/slot.rs:894:21
[INFO] [stdout]     |
[INFO] [stdout] 894 |                     test_println!("-> InitGuard::release; retry, actual={:#x}", actual);
[INFO] [stdout]     |                     ------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `loom`
[INFO] [stdout]   --> src/page/stack.rs:72:11
[INFO] [stdout]    |
[INFO] [stdout] 72 | #[cfg(all(loom, test))]
[INFO] [stdout]    |           ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/page/stack.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |         test_println!("-> pop {:#x}", val);
[INFO] [stdout]    |         ---------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/page/stack.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |             test_println!("-> next {:#x}", next);
[INFO] [stdout]    |             ------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/page/stack.rs:43:21
[INFO] [stdout]    |
[INFO] [stdout] 43 |                     test_println!("-> retry!");
[INFO] [stdout]    |                     -------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/page/stack.rs:47:21
[INFO] [stdout]    |
[INFO] [stdout] 47 |                     test_println!("-> successful; next={:#x}", next);
[INFO] [stdout]    |                     ------------------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/mod.rs:146:9
[INFO] [stdout]     |
[INFO] [stdout] 146 |         test_println!("-> local head {:?}", head);
[INFO] [stdout]     |         ----------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/mod.rs:156:13
[INFO] [stdout]     |
[INFO] [stdout] 156 |             test_println!("-> remote head {:?}", head);
[INFO] [stdout]     |             ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/mod.rs:163:13
[INFO] [stdout]     |
[INFO] [stdout] 163 |             test_println!("-> NULL! {:?}", head);
[INFO] [stdout]     |             ------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/mod.rs:185:9
[INFO] [stdout]     |
[INFO] [stdout] 185 |         test_println!("-> offset {:?}", poff);
[INFO] [stdout]     |         ------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/mod.rs:214:9
[INFO] [stdout]     |
[INFO] [stdout] 214 |         test_println!("-> take: offset {:?}", offset);
[INFO] [stdout]     |         --------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/mod.rs:231:9
[INFO] [stdout]     |
[INFO] [stdout] 231 |         test_println!("-> offset {:?}", offset);
[INFO] [stdout]     |         --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/mod.rs:287:9
[INFO] [stdout]     |
[INFO] [stdout] 287 |         test_println!("-> init_with: insert at offset: {}", index);
[INFO] [stdout]     |         ---------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/mod.rs:294:9
[INFO] [stdout]     |
[INFO] [stdout] 294 |         test_println!("-> alloc new page ({})", self.size);
[INFO] [stdout]     |         -------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/mod.rs:318:9
[INFO] [stdout]     |
[INFO] [stdout] 318 |         test_println!("-> offset {:?}", offset);
[INFO] [stdout]     |         --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/page/mod.rs:338:9
[INFO] [stdout]     |
[INFO] [stdout] 338 |         test_println!("-> offset {:?}", offset);
[INFO] [stdout]     |         --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]   --> src/macros.rs:3:31
[INFO] [stdout]    |
[INFO] [stdout]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/shard.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |         test_println!("-> {:?}", addr);
[INFO] [stdout]    |         ------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:111:9
[INFO] [stdout]     |
[INFO] [stdout] 111 |         test_println!("-> remove_local {:?}", addr);
[INFO] [stdout]     |         ------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:125:9
[INFO] [stdout]     |
[INFO] [stdout] 125 |         test_println!("-> take_remote {:?}; page {:?}", addr, page_index);
[INFO] [stdout]     |         ----------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:172:13
[INFO] [stdout]     |
[INFO] [stdout] 172 |             test_println!("-> page {}; {:?}; {:?}", page_idx, local, page);
[INFO] [stdout]     |             -------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                                 ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:208:9
[INFO] [stdout]     |
[INFO] [stdout] 208 | /         test_println!(
[INFO] [stdout] 209 | |             "-> clear_after_release; self.tid={:?}; current.tid={:?};",
[INFO] [stdout] 210 | |             tid,
[INFO] [stdout] 211 | |             self.tid
[INFO] [stdout] 212 | |         );
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:286:9
[INFO] [stdout]     |
[INFO] [stdout] 286 |         test_println!("-> get shard={}", idx);
[INFO] [stdout]     |         ------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:293:9
[INFO] [stdout]     |
[INFO] [stdout] 293 |         test_println!("current: {:?}", tid);
[INFO] [stdout]     |         ----------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:306:13
[INFO] [stdout]     |
[INFO] [stdout] 306 |             test_println!("-> allocated new shard for index {} at {:p}", idx, ptr);
[INFO] [stdout]     |             ---------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:315:13
[INFO] [stdout]     |
[INFO] [stdout] 315 |             test_println!("-> highest index={}, prev={}", std::cmp::max(max, idx), max);
[INFO] [stdout]     |             --------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:326:9
[INFO] [stdout]     |
[INFO] [stdout] 326 |         test_println!("Array::iter_mut");
[INFO] [stdout]     |         -------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:328:9
[INFO] [stdout]     |
[INFO] [stdout] 328 |         test_println!("-> highest index={}", max);
[INFO] [stdout]     |         ----------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:381:9
[INFO] [stdout]     |
[INFO] [stdout] 381 |         test_println!("---> loaded={:p} (order={:?})", ptr, order);
[INFO] [stdout]     |         ---------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:383:13
[INFO] [stdout]     |
[INFO] [stdout] 383 |             test_println!("---> null");
[INFO] [stdout]     |             -------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:418:9
[INFO] [stdout]     |
[INFO] [stdout] 418 |         test_println!("IterMut::next");
[INFO] [stdout]     |         ------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:425:13
[INFO] [stdout]     |
[INFO] [stdout] 425 |             test_println!("-> next.is_some={}", next.is_some());
[INFO] [stdout]     |             --------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/shard.rs:427:17
[INFO] [stdout]     |
[INFO] [stdout] 427 |                 test_println!("-> done");
[INFO] [stdout]     |                 ------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `loom`
[INFO] [stdout]    --> src/tid.rs:185:15
[INFO] [stdout]     |
[INFO] [stdout] 185 | #[cfg(not(all(loom, any(feature = "loom", test))))]
[INFO] [stdout]     |               ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `loom`
[INFO] [stdout]    --> src/tid.rs:197:21
[INFO] [stdout]     |
[INFO] [stdout] 197 | #[cfg(all(test, not(loom)))]
[INFO] [stdout]     |                     ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:422:9
[INFO] [stdout]     |
[INFO] [stdout] 422 |         test_println!("insert {:?}", tid);
[INFO] [stdout]     |         --------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:457:9
[INFO] [stdout]     |
[INFO] [stdout] 457 |         test_println!("vacant_entry {:?}", tid);
[INFO] [stdout]     |         --------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:518:9
[INFO] [stdout]     |
[INFO] [stdout] 518 |         test_println!("rm_deferred {:?}", tid);
[INFO] [stdout]     |         -------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:584:9
[INFO] [stdout]     |
[INFO] [stdout] 584 |         test_println!("rm {:?}", tid);
[INFO] [stdout]     |         ----------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:611:9
[INFO] [stdout]     |
[INFO] [stdout] 611 |         test_println!("get {:?}; current={:?}", tid, Tid::<C>::current());
[INFO] [stdout]     |         ----------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:709:9
[INFO] [stdout]     |
[INFO] [stdout] 709 |         test_println!("get_owned {:?}; current={:?}", tid, Tid::<C>::current());
[INFO] [stdout]     |         ----------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:960:9
[INFO] [stdout]     |
[INFO] [stdout] 960 |         test_println!("drop OwnedEntry: try clearing data");
[INFO] [stdout]     |         --------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:971:13
[INFO] [stdout]     |
[INFO] [stdout] 971 |             test_println!("-> shard={:?}", shard_idx);
[INFO] [stdout]     |             ----------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stdout]    --> src/macros.rs:3:31
[INFO] [stdout]     |
[INFO] [stdout]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:975:17
[INFO] [stdout]     |
[INFO] [stdout] 975 |                 test_println!("-> shard={:?} does not exist! THIS IS A BUG", shard_idx);
[INFO] [stdout]     |                 ----------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `loom`
[INFO] [stdout]   --> src/tests/mod.rs:68:11
[INFO] [stdout]    |
[INFO] [stdout] 68 | #[cfg(not(loom))]
[INFO] [stdout]    |           ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `loom`
[INFO] [stdout]   --> src/tests/mod.rs:70:7
[INFO] [stdout]    |
[INFO] [stdout] 70 | #[cfg(loom)]
[INFO] [stdout]    |       ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `loom`
[INFO] [stdout]   --> src/tests/mod.rs:72:7
[INFO] [stdout]    |
[INFO] [stdout] 72 | #[cfg(loom)]
[INFO] [stdout]    |       ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `loom`
[INFO] [stdout]   --> src/tests/mod.rs:74:11
[INFO] [stdout]    |
[INFO] [stdout] 74 | #[cfg(not(loom))]
[INFO] [stdout]    |           ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `loom`
[INFO] [stdout]   --> src/tests/mod.rs:11:20
[INFO] [stdout]    |
[INFO] [stdout] 11 |         #[cfg_attr(loom, ignore)]
[INFO] [stdout]    |                    ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `loom`
[INFO] [stdout]   --> src/tests/mod.rs:19:20
[INFO] [stdout]    |
[INFO] [stdout] 19 |         #[cfg_attr(loom, ignore)]
[INFO] [stdout]    |                    ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `loom`
[INFO] [stdout]   --> src/tests/mod.rs:37:11
[INFO] [stdout]    |
[INFO] [stdout] 37 |     #[cfg(loom)]
[INFO] [stdout]    |           ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `loom`
[INFO] [stdout]   --> src/tests/mod.rs:45:11
[INFO] [stdout]    |
[INFO] [stdout] 45 |     #[cfg(loom)]
[INFO] [stdout]    |           ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `loom`
[INFO] [stdout]   --> src/tests/mod.rs:50:11
[INFO] [stdout]    |
[INFO] [stdout] 50 |     #[cfg(loom)]
[INFO] [stdout]    |           ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 31.87s
[INFO] running `Command { std: "docker" "inspect" "b4be80bad88e3f7e20134567b0ca0caa264518d308612f5439ecd0ca8a4d4b48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4be80bad88e3f7e20134567b0ca0caa264518d308612f5439ecd0ca8a4d4b48", kill_on_drop: false }`
[INFO] [stdout] b4be80bad88e3f7e20134567b0ca0caa264518d308612f5439ecd0ca8a4d4b48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 23c26631a7730532f3bce1bf29908bce35da237cc1a8d61d48277d71876b1018
[INFO] running `Command { std: "docker" "start" "-a" "23c26631a7730532f3bce1bf29908bce35da237cc1a8d61d48277d71876b1018", kill_on_drop: false }`
[INFO] [stderr] warning: unexpected `cfg` condition name: `loom`
[INFO] [stderr]   --> src/macros.rs:15:17
[INFO] [stderr]    |
[INFO] [stderr] 15 | #[cfg(all(test, loom))]
[INFO] [stderr]    |                 ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: expected names are: `docsrs`, `feature`, and `test` and 32 more
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/pool.rs:453:9
[INFO] [stderr]     |
[INFO] [stderr] 453 |         test_println!("pool: create {:?}", tid);
[INFO] [stderr]     |         --------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/pool.rs:621:9
[INFO] [stderr]     |
[INFO] [stderr] 621 |         test_println!("pool: create_owned {:?}", tid);
[INFO] [stderr]     |         --------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/pool.rs:655:9
[INFO] [stderr]     |
[INFO] [stderr] 655 |         test_println!("pool: create_with");
[INFO] [stderr]     |         ---------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/pool.rs:678:9
[INFO] [stderr]     |
[INFO] [stderr] 678 |         test_println!("pool: get{:?}; current={:?}", tid, Tid::<C>::current());
[INFO] [stderr]     |         ---------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/pool.rs:769:9
[INFO] [stderr]     |
[INFO] [stderr] 769 |         test_println!("pool: get{:?}; current={:?}", tid, Tid::<C>::current());
[INFO] [stderr]     |         ---------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/pool.rs:914:9
[INFO] [stderr]     |
[INFO] [stderr] 914 |         test_println!("drop Ref: try clearing data");
[INFO] [stderr]     |         -------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]     --> src/macros.rs:3:31
[INFO] [stderr]      |
[INFO] [stderr]    3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]      |                               ^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]     ::: src/pool.rs:1049:9
[INFO] [stderr]      |
[INFO] [stderr] 1049 |         test_println!(" -> drop RefMut: try clearing data");
[INFO] [stderr]      |         --------------------------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = help: consider using a Cargo feature instead
[INFO] [stderr]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]               [lints.rust]
[INFO] [stderr]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]      = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]     --> src/macros.rs:3:31
[INFO] [stderr]      |
[INFO] [stderr]    3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]      |                               ^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]     ::: src/pool.rs:1124:9
[INFO] [stderr]      |
[INFO] [stderr] 1124 |         test_println!("drop OwnedRef: try clearing data");
[INFO] [stderr]      |         ------------------------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = help: consider using a Cargo feature instead
[INFO] [stderr]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]               [lints.rust]
[INFO] [stderr]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]      = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]     --> src/macros.rs:3:31
[INFO] [stderr]      |
[INFO] [stderr]    3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]      |                               ^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]     ::: src/pool.rs:1135:13
[INFO] [stderr]      |
[INFO] [stderr] 1135 |             test_println!("-> shard={:?}", shard_idx);
[INFO] [stderr]      |             ----------------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = help: consider using a Cargo feature instead
[INFO] [stderr]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]               [lints.rust]
[INFO] [stderr]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]      = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]     --> src/macros.rs:3:31
[INFO] [stderr]      |
[INFO] [stderr]    3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]      |                               ^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]     ::: src/pool.rs:1139:17
[INFO] [stderr]      |
[INFO] [stderr] 1139 |                 test_println!("-> shard={:?} does not exist! THIS IS A BUG", shard_idx);
[INFO] [stderr]      |                 ----------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = help: consider using a Cargo feature instead
[INFO] [stderr]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]               [lints.rust]
[INFO] [stderr]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]      = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]     --> src/macros.rs:3:31
[INFO] [stderr]      |
[INFO] [stderr]    3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]      |                               ^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]     ::: src/pool.rs:1238:9
[INFO] [stderr]      |
[INFO] [stderr] 1238 |         test_println!("-> shard={:?}", shard_idx);
[INFO] [stderr]      |         ----------------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = help: consider using a Cargo feature instead
[INFO] [stderr]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]               [lints.rust]
[INFO] [stderr]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]      = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]     --> src/macros.rs:3:31
[INFO] [stderr]      |
[INFO] [stderr]    3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]      |                               ^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]     ::: src/pool.rs:1290:9
[INFO] [stderr]      |
[INFO] [stderr] 1290 |         test_println!("drop OwnedRefMut: try clearing data");
[INFO] [stderr]      |         ---------------------------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = help: consider using a Cargo feature instead
[INFO] [stderr]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]               [lints.rust]
[INFO] [stderr]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]      = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]     --> src/macros.rs:3:31
[INFO] [stderr]      |
[INFO] [stderr]    3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]      |                               ^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]     ::: src/pool.rs:1303:17
[INFO] [stderr]      |
[INFO] [stderr] 1303 |                 test_println!("-> shard does not exist! THIS IS A BUG");
[INFO] [stderr]      |                 ------------------------------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = help: consider using a Cargo feature instead
[INFO] [stderr]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]               [lints.rust]
[INFO] [stderr]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]      = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]      = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `loom`
[INFO] [stderr]  --> src/sync.rs:3:11
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[cfg(all(loom, any(test, feature = "loom")))]
[INFO] [stderr]   |           ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stderr]   |
[INFO] [stderr]   = help: consider using a Cargo feature instead
[INFO] [stderr]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]            [lints.rust]
[INFO] [stderr]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stderr]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stderr]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `loom`
[INFO] [stderr]   --> src/sync.rs:63:15
[INFO] [stderr]    |
[INFO] [stderr] 63 | #[cfg(not(all(loom, any(feature = "loom", test))))]
[INFO] [stderr]    |               ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `loom`
[INFO] [stderr]   --> src/clear.rs:95:11
[INFO] [stderr]    |
[INFO] [stderr] 95 | #[cfg(all(loom, test))]
[INFO] [stderr]    |           ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]   --> src/macros.rs:3:31
[INFO] [stderr]    |
[INFO] [stderr]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]    |                               ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]   ::: src/iter.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 18 |         test_println!("UniqueIter::next");
[INFO] [stderr]    |         --------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]   --> src/macros.rs:3:31
[INFO] [stderr]    |
[INFO] [stderr]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]    |                               ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]   ::: src/iter.rs:20:13
[INFO] [stderr]    |
[INFO] [stderr] 20 |             test_println!("-> try next slot");
[INFO] [stderr]    |             --------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]   --> src/macros.rs:3:31
[INFO] [stderr]    |
[INFO] [stderr]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]    |                               ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]   ::: src/iter.rs:22:17
[INFO] [stderr]    |
[INFO] [stderr] 22 |                 test_println!("-> found an item!");
[INFO] [stderr]    |                 ---------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]   --> src/macros.rs:3:31
[INFO] [stderr]    |
[INFO] [stderr]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]    |                               ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]   ::: src/iter.rs:26:13
[INFO] [stderr]    |
[INFO] [stderr] 26 |             test_println!("-> try next page");
[INFO] [stderr]    |             --------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]   --> src/macros.rs:3:31
[INFO] [stderr]    |
[INFO] [stderr]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]    |                               ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]   ::: src/iter.rs:28:17
[INFO] [stderr]    |
[INFO] [stderr] 28 |                 test_println!("-> found another page");
[INFO] [stderr]    |                 -------------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]   --> src/macros.rs:3:31
[INFO] [stderr]    |
[INFO] [stderr]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]    |                               ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]   ::: src/iter.rs:33:13
[INFO] [stderr]    |
[INFO] [stderr] 33 |             test_println!("-> try next shard");
[INFO] [stderr]    |             ---------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]   --> src/macros.rs:3:31
[INFO] [stderr]    |
[INFO] [stderr]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]    |                               ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]   ::: src/iter.rs:35:17
[INFO] [stderr]    |
[INFO] [stderr] 35 |                 test_println!("-> found another shard");
[INFO] [stderr]    |                 --------------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]   --> src/macros.rs:3:31
[INFO] [stderr]    |
[INFO] [stderr]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]    |                               ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]   ::: src/iter.rs:38:17
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 test_println!("-> all done!");
[INFO] [stderr]    |                 ----------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                                 ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:115:13
[INFO] [stderr]     |
[INFO] [stderr] 115 | /             test_println!(
[INFO] [stderr] 116 | |                 "-> get {:?}; current_gen={:?}; lifecycle={:#x}; state={:?}; refs={:?};",
[INFO] [stderr] 117 | |                 gen,
[INFO] [stderr] 118 | |                 current_gen,
[INFO] [stderr] ...   |
[INFO] [stderr] 121 | |                 refs,
[INFO] [stderr] 122 | |             );
[INFO] [stderr]     | |_____________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:129:17
[INFO] [stderr]     |
[INFO] [stderr] 129 |                 test_println!("-> get: no longer exists!");
[INFO] [stderr]     |                 ------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:142:21
[INFO] [stderr]     |
[INFO] [stderr] 142 |                     test_println!("-> {:?}", new_refs);
[INFO] [stderr]     |                     ---------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:154:21
[INFO] [stderr]     |
[INFO] [stderr] 154 |                     test_println!("-> get: retrying; lifecycle={:#x};", actual);
[INFO] [stderr]     |                     ----------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                                 ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:175:13
[INFO] [stderr]     |
[INFO] [stderr] 175 | /             test_println!(
[INFO] [stderr] 176 | |                 "-> mark_release; gen={:?}; current_gen={:?};",
[INFO] [stderr] 177 | |                 gen,
[INFO] [stderr] 178 | |                 curr_gen
[INFO] [stderr] 179 | |             );
[INFO] [stderr]     | |_____________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:187:13
[INFO] [stderr]     |
[INFO] [stderr] 187 |             test_println!("-> mark_release; state={:?};", state);
[INFO] [stderr]     |             ---------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:190:21
[INFO] [stderr]     |
[INFO] [stderr] 190 |                     test_println!("--> mark_release; cannot release (already removed!)");
[INFO] [stderr]     |                     -------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:194:21
[INFO] [stderr]     |
[INFO] [stderr] 194 |                     test_println!("--> mark_release; already marked;");
[INFO] [stderr]     |                     -------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                                 ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:202:13
[INFO] [stderr]     |
[INFO] [stderr] 202 | /             test_println!(
[INFO] [stderr] 203 | |                 "-> mark_release; old_lifecycle={:#x}; new_lifecycle={:#x};",
[INFO] [stderr] 204 | |                 lifecycle,
[INFO] [stderr] 205 | |                 new_lifecycle
[INFO] [stderr] 206 | |             );
[INFO] [stderr]     | |_____________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:216:21
[INFO] [stderr]     |
[INFO] [stderr] 216 |                     test_println!("-> mark_release; retrying");
[INFO] [stderr]     |                     ------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:224:9
[INFO] [stderr]     |
[INFO] [stderr] 224 |         test_println!("-> mark_release: marked; refs={:?};", refs);
[INFO] [stderr]     |         ---------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                                 ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:246:13
[INFO] [stderr]     |
[INFO] [stderr] 246 | /             test_println!("-> release_with; lifecycle={:#x}; expected_gen={:?}; current_gen={:?}; next_gen={:?};",
[INFO] [stderr] 247 | |                 lifecycle,
[INFO] [stderr] 248 | |                 gen,
[INFO] [stderr] 249 | |                 current_gen,
[INFO] [stderr] 250 | |                 next_gen
[INFO] [stderr] 251 | |             );
[INFO] [stderr]     | |_____________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:258:17
[INFO] [stderr]     |
[INFO] [stderr] 258 |                 test_println!("-> already removed!");
[INFO] [stderr]     |                 ------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:275:21
[INFO] [stderr]     |
[INFO] [stderr] 275 |                     test_println!("-> advanced gen; lifecycle={:#x}; refs={:?};", actual, refs);
[INFO] [stderr]     |                     --------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:277:25
[INFO] [stderr]     |
[INFO] [stderr] 277 |                         test_println!("-> ok to remove!");
[INFO] [stderr]     |                         --------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:290:21
[INFO] [stderr]     |
[INFO] [stderr] 290 |                     test_println!("-> refs={:?}; spin...", refs);
[INFO] [stderr]     |                     -------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:296:21
[INFO] [stderr]     |
[INFO] [stderr] 296 |                     test_println!("-> retrying; lifecycle={:#x};", actual);
[INFO] [stderr]     |                     ------------------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                                 ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:316:9
[INFO] [stderr]     |
[INFO] [stderr] 316 | /         test_println!(
[INFO] [stderr] 317 | |             "-> initialize_state; state={:?}; gen={:?}; refs={:?};",
[INFO] [stderr] 318 | |             Lifecycle::<C>::from_packed(lifecycle),
[INFO] [stderr] 319 | |             gen,
[INFO] [stderr] 320 | |             refs,
[INFO] [stderr] 321 | |         );
[INFO] [stderr]     | |_________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:324:13
[INFO] [stderr]     |
[INFO] [stderr] 324 |             test_println!("-> initialize while referenced! cancelling");
[INFO] [stderr]     |             ----------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:363:9
[INFO] [stderr]     |
[INFO] [stderr] 363 |         test_println!("-> inserted at {:?}", gen);
[INFO] [stderr]     |         ----------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                                 ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:389:17
[INFO] [stderr]     |
[INFO] [stderr] 389 | /                 test_println!(
[INFO] [stderr] 390 | |                     "-> try_remove_value; nothing exists at generation={:?}",
[INFO] [stderr] 391 | |                     gen
[INFO] [stderr] 392 | |                 );
[INFO] [stderr]     | |_________________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:397:9
[INFO] [stderr]     |
[INFO] [stderr] 397 |         test_println!("-> try_remove_value; marked!");
[INFO] [stderr]     |         --------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:401:13
[INFO] [stderr]     |
[INFO] [stderr] 401 |             test_println!("-> try_remove_value; can remove now");
[INFO] [stderr]     |             ---------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                                 ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:453:17
[INFO] [stderr]     |
[INFO] [stderr] 453 | /                 test_println!(
[INFO] [stderr] 454 | |                     "-> try_clear_storage; nothing exists at generation={:?}",
[INFO] [stderr] 455 | |                     gen
[INFO] [stderr] 456 | |                 );
[INFO] [stderr]     | |_________________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:461:9
[INFO] [stderr]     |
[INFO] [stderr] 461 |         test_println!("-> try_clear_storage; marked!");
[INFO] [stderr]     |         ---------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:465:13
[INFO] [stderr]     |
[INFO] [stderr] 465 |             test_println!("-> try_remove_value; can clear now");
[INFO] [stderr]     |             --------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:485:13
[INFO] [stderr]     |
[INFO] [stderr] 485 |             test_println!("-> cleared: {}", cleared);
[INFO] [stderr]     |             ---------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                                 ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:510:13
[INFO] [stderr]     |
[INFO] [stderr] 510 | /             test_println!(
[INFO] [stderr] 511 | |                 "-> drop guard: state={:?}; gen={:?}; refs={:?}; lifecycle={:#x}; new_lifecycle={:#x}; dropping={:?}",
[INFO] [stderr] 512 | |                 state,
[INFO] [stderr] 513 | |                 gen,
[INFO] [stderr] ...   |
[INFO] [stderr] 517 | |                 dropping
[INFO] [stderr] 518 | |             );
[INFO] [stderr]     | |_____________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:526:21
[INFO] [stderr]     |
[INFO] [stderr] 526 |                     test_println!("-> drop guard: done;  dropping={:?}", dropping);
[INFO] [stderr]     |                     -------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:530:21
[INFO] [stderr]     |
[INFO] [stderr] 530 |                     test_println!("-> drop guard; retry, actual={:#x}", actual);
[INFO] [stderr]     |                     ----------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:710:13
[INFO] [stderr]     |
[INFO] [stderr] 710 |             test_println!("-> get: {}; MAX={}", self.value, RefCount::<C>::MAX);
[INFO] [stderr]     |             ------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                                 ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:830:9
[INFO] [stderr]     |
[INFO] [stderr] 830 | /         test_println!(
[INFO] [stderr] 831 | |             "InitGuard::release; curr_lifecycle={:?}; downgrading={}",
[INFO] [stderr] 832 | |             Lifecycle::<C>::from_packed(self.curr_lifecycle),
[INFO] [stderr] 833 | |             new_refs != 0,
[INFO] [stderr] 834 | |         );
[INFO] [stderr]     | |_________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:836:13
[INFO] [stderr]     |
[INFO] [stderr] 836 |             test_println!("-> already released!");
[INFO] [stderr]     |             ------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:852:17
[INFO] [stderr]     |
[INFO] [stderr] 852 |                 test_println!("--> advanced to PRESENT; done");
[INFO] [stderr]     |                 ---------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                                 ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:856:17
[INFO] [stderr]     |
[INFO] [stderr] 856 | /                 test_println!(
[INFO] [stderr] 857 | |                     "--> lifecycle changed; actual={:?}",
[INFO] [stderr] 858 | |                     Lifecycle::<C>::from_packed(actual)
[INFO] [stderr] 859 | |                 );
[INFO] [stderr]     | |_________________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                                 ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:870:13
[INFO] [stderr]     |
[INFO] [stderr] 870 | /             test_println!(
[INFO] [stderr] 871 | |                 "-> InitGuard::release; lifecycle={:#x}; state={:?}; refs={:?};",
[INFO] [stderr] 872 | |                 curr_lifecycle,
[INFO] [stderr] 873 | |                 state,
[INFO] [stderr] 874 | |                 refs,
[INFO] [stderr] 875 | |             );
[INFO] [stderr]     | |_____________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:889:21
[INFO] [stderr]     |
[INFO] [stderr] 889 |                     test_println!("-> InitGuard::RELEASE: done!");
[INFO] [stderr]     |                     --------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/slot.rs:894:21
[INFO] [stderr]     |
[INFO] [stderr] 894 |                     test_println!("-> InitGuard::release; retry, actual={:#x}", actual);
[INFO] [stderr]     |                     ------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `loom`
[INFO] [stderr]   --> src/page/stack.rs:72:11
[INFO] [stderr]    |
[INFO] [stderr] 72 | #[cfg(all(loom, test))]
[INFO] [stderr]    |           ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]   --> src/macros.rs:3:31
[INFO] [stderr]    |
[INFO] [stderr]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]    |                               ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]   ::: src/page/stack.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 |         test_println!("-> pop {:#x}", val);
[INFO] [stderr]    |         ---------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]   --> src/macros.rs:3:31
[INFO] [stderr]    |
[INFO] [stderr]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]    |                               ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]   ::: src/page/stack.rs:34:13
[INFO] [stderr]    |
[INFO] [stderr] 34 |             test_println!("-> next {:#x}", next);
[INFO] [stderr]    |             ------------------------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]   --> src/macros.rs:3:31
[INFO] [stderr]    |
[INFO] [stderr]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]    |                               ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]   ::: src/page/stack.rs:43:21
[INFO] [stderr]    |
[INFO] [stderr] 43 |                     test_println!("-> retry!");
[INFO] [stderr]    |                     -------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]   --> src/macros.rs:3:31
[INFO] [stderr]    |
[INFO] [stderr]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]    |                               ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]   ::: src/page/stack.rs:47:21
[INFO] [stderr]    |
[INFO] [stderr] 47 |                     test_println!("-> successful; next={:#x}", next);
[INFO] [stderr]    |                     ------------------------------------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/mod.rs:146:9
[INFO] [stderr]     |
[INFO] [stderr] 146 |         test_println!("-> local head {:?}", head);
[INFO] [stderr]     |         ----------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/mod.rs:156:13
[INFO] [stderr]     |
[INFO] [stderr] 156 |             test_println!("-> remote head {:?}", head);
[INFO] [stderr]     |             ------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/mod.rs:163:13
[INFO] [stderr]     |
[INFO] [stderr] 163 |             test_println!("-> NULL! {:?}", head);
[INFO] [stderr]     |             ------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/mod.rs:185:9
[INFO] [stderr]     |
[INFO] [stderr] 185 |         test_println!("-> offset {:?}", poff);
[INFO] [stderr]     |         ------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/mod.rs:214:9
[INFO] [stderr]     |
[INFO] [stderr] 214 |         test_println!("-> take: offset {:?}", offset);
[INFO] [stderr]     |         --------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/mod.rs:231:9
[INFO] [stderr]     |
[INFO] [stderr] 231 |         test_println!("-> offset {:?}", offset);
[INFO] [stderr]     |         --------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/mod.rs:287:9
[INFO] [stderr]     |
[INFO] [stderr] 287 |         test_println!("-> init_with: insert at offset: {}", index);
[INFO] [stderr]     |         ---------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/mod.rs:294:9
[INFO] [stderr]     |
[INFO] [stderr] 294 |         test_println!("-> alloc new page ({})", self.size);
[INFO] [stderr]     |         -------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/mod.rs:318:9
[INFO] [stderr]     |
[INFO] [stderr] 318 |         test_println!("-> offset {:?}", offset);
[INFO] [stderr]     |         --------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/page/mod.rs:338:9
[INFO] [stderr]     |
[INFO] [stderr] 338 |         test_println!("-> offset {:?}", offset);
[INFO] [stderr]     |         --------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]   --> src/macros.rs:3:31
[INFO] [stderr]    |
[INFO] [stderr]  3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]    |                               ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]   ::: src/shard.rs:79:9
[INFO] [stderr]    |
[INFO] [stderr] 79 |         test_println!("-> {:?}", addr);
[INFO] [stderr]    |         ------------------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]    = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/shard.rs:111:9
[INFO] [stderr]     |
[INFO] [stderr] 111 |         test_println!("-> remove_local {:?}", addr);
[INFO] [stderr]     |         ------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/shard.rs:125:9
[INFO] [stderr]     |
[INFO] [stderr] 125 |         test_println!("-> take_remote {:?}; page {:?}", addr, page_index);
[INFO] [stderr]     |         ----------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/shard.rs:172:13
[INFO] [stderr]     |
[INFO] [stderr] 172 |             test_println!("-> page {}; {:?}; {:?}", page_idx, local, page);
[INFO] [stderr]     |             -------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |           if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                                 ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/shard.rs:208:9
[INFO] [stderr]     |
[INFO] [stderr] 208 | /         test_println!(
[INFO] [stderr] 209 | |             "-> clear_after_release; self.tid={:?}; current.tid={:?};",
[INFO] [stderr] 210 | |             tid,
[INFO] [stderr] 211 | |             self.tid
[INFO] [stderr] 212 | |         );
[INFO] [stderr]     | |_________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/shard.rs:286:9
[INFO] [stderr]     |
[INFO] [stderr] 286 |         test_println!("-> get shard={}", idx);
[INFO] [stderr]     |         ------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/shard.rs:293:9
[INFO] [stderr]     |
[INFO] [stderr] 293 |         test_println!("current: {:?}", tid);
[INFO] [stderr]     |         ----------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/shard.rs:306:13
[INFO] [stderr]     |
[INFO] [stderr] 306 |             test_println!("-> allocated new shard for index {} at {:p}", idx, ptr);
[INFO] [stderr]     |             ---------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/shard.rs:315:13
[INFO] [stderr]     |
[INFO] [stderr] 315 |             test_println!("-> highest index={}, prev={}", std::cmp::max(max, idx), max);
[INFO] [stderr]     |             --------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/shard.rs:326:9
[INFO] [stderr]     |
[INFO] [stderr] 326 |         test_println!("Array::iter_mut");
[INFO] [stderr]     |         -------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/shard.rs:328:9
[INFO] [stderr]     |
[INFO] [stderr] 328 |         test_println!("-> highest index={}", max);
[INFO] [stderr]     |         ----------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/shard.rs:381:9
[INFO] [stderr]     |
[INFO] [stderr] 381 |         test_println!("---> loaded={:p} (order={:?})", ptr, order);
[INFO] [stderr]     |         ---------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/shard.rs:383:13
[INFO] [stderr]     |
[INFO] [stderr] 383 |             test_println!("---> null");
[INFO] [stderr]     |             -------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/shard.rs:418:9
[INFO] [stderr]     |
[INFO] [stderr] 418 |         test_println!("IterMut::next");
[INFO] [stderr]     |         ------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/shard.rs:425:13
[INFO] [stderr]     |
[INFO] [stderr] 425 |             test_println!("-> next.is_some={}", next.is_some());
[INFO] [stderr]     |             --------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/shard.rs:427:17
[INFO] [stderr]     |
[INFO] [stderr] 427 |                 test_println!("-> done");
[INFO] [stderr]     |                 ------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `loom`
[INFO] [stderr]    --> src/tid.rs:185:15
[INFO] [stderr]     |
[INFO] [stderr] 185 | #[cfg(not(all(loom, any(feature = "loom", test))))]
[INFO] [stderr]     |               ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `loom`
[INFO] [stderr]    --> src/tid.rs:197:21
[INFO] [stderr]     |
[INFO] [stderr] 197 | #[cfg(all(test, not(loom)))]
[INFO] [stderr]     |                     ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/lib.rs:422:9
[INFO] [stderr]     |
[INFO] [stderr] 422 |         test_println!("insert {:?}", tid);
[INFO] [stderr]     |         --------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/lib.rs:457:9
[INFO] [stderr]     |
[INFO] [stderr] 457 |         test_println!("vacant_entry {:?}", tid);
[INFO] [stderr]     |         --------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/lib.rs:518:9
[INFO] [stderr]     |
[INFO] [stderr] 518 |         test_println!("rm_deferred {:?}", tid);
[INFO] [stderr]     |         -------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/lib.rs:584:9
[INFO] [stderr]     |
[INFO] [stderr] 584 |         test_println!("rm {:?}", tid);
[INFO] [stderr]     |         ----------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/lib.rs:611:9
[INFO] [stderr]     |
[INFO] [stderr] 611 |         test_println!("get {:?}; current={:?}", tid, Tid::<C>::current());
[INFO] [stderr]     |         ----------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/lib.rs:709:9
[INFO] [stderr]     |
[INFO] [stderr] 709 |         test_println!("get_owned {:?}; current={:?}", tid, Tid::<C>::current());
[INFO] [stderr]     |         ----------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/lib.rs:960:9
[INFO] [stderr]     |
[INFO] [stderr] 960 |         test_println!("drop OwnedEntry: try clearing data");
[INFO] [stderr]     |         --------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/lib.rs:971:13
[INFO] [stderr]     |
[INFO] [stderr] 971 |             test_println!("-> shard={:?}", shard_idx);
[INFO] [stderr]     |             ----------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `slab_print`
[INFO] [stderr]    --> src/macros.rs:3:31
[INFO] [stderr]     |
[INFO] [stderr]   3 |         if cfg!(test) && cfg!(slab_print) {
[INFO] [stderr]     |                               ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/lib.rs:975:17
[INFO] [stderr]     |
[INFO] [stderr] 975 |                 test_println!("-> shard={:?} does not exist! THIS IS A BUG", shard_idx);
[INFO] [stderr]     |                 ----------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(slab_print)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(slab_print)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: this warning originates in the macro `test_println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `sharded-slab` (lib) generated 105 warnings
[INFO] [stderr] warning: unexpected `cfg` condition name: `loom`
[INFO] [stderr]    --> src/cfg.rs:175:16
[INFO] [stderr]     |
[INFO] [stderr] 175 |     #[cfg_attr(loom, ignore)]
[INFO] [stderr]     |                ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `loom`
[INFO] [stderr]    --> src/cfg.rs:193:16
[INFO] [stderr]     |
[INFO] [stderr] 193 |     #[cfg_attr(loom, ignore)]
[INFO] [stderr]     |                ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `loom`
[INFO] [stderr]    --> src/cfg.rs:205:16
[INFO] [stderr]     |
[INFO] [stderr] 205 |     #[cfg_attr(loom, ignore)]
[INFO] [stderr]     |                ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `loom`
[INFO] [stderr]   --> src/tests/mod.rs:68:11
[INFO] [stderr]    |
[INFO] [stderr] 68 | #[cfg(not(loom))]
[INFO] [stderr]    |           ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `loom`
[INFO] [stderr]   --> src/tests/mod.rs:70:7
[INFO] [stderr]    |
[INFO] [stderr] 70 | #[cfg(loom)]
[INFO] [stderr]    |       ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `loom`
[INFO] [stderr]   --> src/tests/mod.rs:72:7
[INFO] [stderr]    |
[INFO] [stderr] 72 | #[cfg(loom)]
[INFO] [stderr]    |       ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `loom`
[INFO] [stderr]   --> src/tests/mod.rs:74:11
[INFO] [stderr]    |
[INFO] [stderr] 74 | #[cfg(not(loom))]
[INFO] [stderr]    |           ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `loom`
[INFO] [stderr]   --> src/tests/mod.rs:11:20
[INFO] [stderr]    |
[INFO] [stderr] 11 |         #[cfg_attr(loom, ignore)]
[INFO] [stderr]    |                    ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `loom`
[INFO] [stderr]   --> src/tests/mod.rs:19:20
[INFO] [stderr]    |
[INFO] [stderr] 19 |         #[cfg_attr(loom, ignore)]
[INFO] [stderr]    |                    ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `loom`
[INFO] [stderr]   --> src/tests/mod.rs:37:11
[INFO] [stderr]    |
[INFO] [stderr] 37 |     #[cfg(loom)]
[INFO] [stderr]    |           ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `loom`
[INFO] [stderr]   --> src/tests/mod.rs:45:11
[INFO] [stderr]    |
[INFO] [stderr] 45 |     #[cfg(loom)]
[INFO] [stderr]    |           ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `loom`
[INFO] [stderr]   --> src/tests/mod.rs:50:11
[INFO] [stderr]    |
[INFO] [stderr] 50 |     #[cfg(loom)]
[INFO] [stderr]    |           ^^^^ help: found config with similar value: `feature = "loom"`
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(loom)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(loom)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: `sharded-slab` (lib test) generated 117 warnings (105 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/sharded_slab-31c199a83a1d1d8f)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test tests::custom_config::double_get ... ok
[INFO] [stdout] test tests::custom_config::insert_remove ... ok
[INFO] [stdout] test cfg::tests::big ... ok
[INFO] [stdout] test page::test::gen_roundtrips ... ok
[INFO] [stdout] test tests::idx::tid_roundtrips ... ok
[INFO] [stdout] test cfg::tests::custom_page_sz ... ok
[INFO] [stdout] test page::test::page_roundtrips ... ok
[INFO] [stdout] test tests::idx::idx_roundtrips ... ok
[INFO] [stdout] test page::test::addr_roundtrips ... ok
[INFO] [stdout] test cfg::tests::validates_max_refs - should panic ... ok
[INFO] [stdout] test tests::properties::default_config ... ok
[INFO] [stderr]      Running tests/reserved_bits_leak.rs (/opt/rustwide/target/debug/deps/reserved_bits_leak-b4bd5759c0c22b51)
[INFO] [stdout] test tests::properties::custom_config ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 16.74s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test reserved_bits_doesnt_leak ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.17s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sharded_slab
[INFO] [stdout] 
[INFO] [stdout] running 48 tests
[INFO] [stdout] test src/implementation.rs - implementation (line 128) ... ignored
[INFO] [stdout] test src/implementation.rs - implementation (line 134) ... ignored
[INFO] [stdout] test src/lib.rs - Slab<T,C>::get_owned (line 637) ... ok
[INFO] [stdout] test src/lib.rs - (line 57) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T,C>::take (line 558) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T,C>::get_owned (line 655) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T,C>::get_owned (line 688) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T,C>::insert (line 413) ... ok
[INFO] [stdout] test src/lib.rs - (line 82) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T,C>::remove (line 479) ... ok
[INFO] [stdout] test src/lib.rs - OwnedEntry (line 314) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T,C>::get (line 601) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T,C>::remove (line 490) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T,C>::contains (line 727) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T,C>::vacant_entry (line 440) ... ok
[INFO] [stdout] test src/lib.rs - VacantEntry (line 260) ... ok
[INFO] [stdout] test src/lib.rs - Slab<T,C>::take (line 547) ... ok
[INFO] [stdout] test src/lib.rs - OwnedEntry (line 296) ... ok
[INFO] [stdout] test src/lib.rs - VacantEntry<'a,T,C>::key (line 903) ... ok
[INFO] [stdout] test src/lib.rs - OwnedEntry (line 347) ... ok
[INFO] [stdout] test src/pool.rs - pool::OwnedRefMut (line 243) ... ok
[INFO] [stdout] test src/lib.rs - (line 48) ... ok
[INFO] [stdout] test src/pool.rs - pool::OwnedRef (line 190) ... ok
[INFO] [stdout] test src/pool.rs - pool::OwnedRefMut (line 268) ... ok
[INFO] [stdout] test src/pool.rs - pool::OwnedRef (line 139) ... ok
[INFO] [stdout] test src/pool.rs - pool::OwnedRefMut (line 288) ... ok
[INFO] [stdout] test src/pool.rs - pool::Pool (line 37) ... ok
[INFO] [stdout] test src/pool.rs - pool::Pool (line 46) ... ok
[INFO] [stdout] test src/pool.rs - pool::OwnedRefMut (line 343) ... ok
[INFO] [stdout] test src/pool.rs - pool::OwnedRefMut (line 321) ... ok
[INFO] [stdout] test src/pool.rs - pool::OwnedRef (line 157) ... ok
[INFO] [stdout] test src/pool.rs - pool::OwnedRefMut<T,C>::downgrade (line 1197) ... ok
[INFO] [stdout] test src/pool.rs - pool::Pool (line 60) ... ok
[INFO] [stdout] test src/pool.rs - pool::Pool<T,C>::create_owned (line 490) ... ok
[INFO] [stdout] test src/pool.rs - pool::Pool<T,C>::clear (line 804) ... ok
[INFO] [stdout] test src/pool.rs - pool::Pool<T,C>::clear (line 788) ... ok
[INFO] [stdout] test src/pool.rs - pool::Pool<T,C>::create (line 427) ... ok
[INFO] [stdout] test src/lib.rs - VacantEntry<'a,T,C>::insert (line 857) ... ok
[INFO] [stdout] test src/pool.rs - pool::Pool<T,C>::create_owned (line 535) ... ok
[INFO] [stdout] test src/pool.rs - pool::Pool<T,C>::get_owned (line 714) ... ok
[INFO] [stdout] test src/pool.rs - pool::Pool<T,C>::get (line 667) ... ok
[INFO] [stdout] test src/pool.rs - pool::Pool<T,C>::create_with (line 641) ... ok
[INFO] [stdout] test src/pool.rs - pool::Pool<T,C>::create_owned (line 515) ... ok
[INFO] [stdout] test src/pool.rs - pool::Pool<T,C>::get_owned (line 747) ... ok
[INFO] [stdout] test src/pool.rs - pool::Pool<T,C>::create_owned (line 568) ... ok
[INFO] [stdout] test src/pool.rs - pool::Pool<T,C>::get_owned (line 696) ... ok
[INFO] [stdout] test src/pool.rs - pool::Pool<T,C>::create_owned (line 590) ... ok
[INFO] [stdout] test src/pool.rs - pool::RefMut<'a,T,C>::downgrade (line 967) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 46 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out; finished in 4.93s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "23c26631a7730532f3bce1bf29908bce35da237cc1a8d61d48277d71876b1018", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23c26631a7730532f3bce1bf29908bce35da237cc1a8d61d48277d71876b1018", kill_on_drop: false }`
[INFO] [stdout] 23c26631a7730532f3bce1bf29908bce35da237cc1a8d61d48277d71876b1018
