[INFO] fetching crate wider_primitives 0.0.7...
[INFO] checking wider_primitives-0.0.7 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate wider_primitives 0.0.7 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate wider_primitives 0.0.7
[INFO] finished tweaking crates.io crate wider_primitives 0.0.7
[INFO] tweaked toml for crates.io crate wider_primitives 0.0.7 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate wider_primitives 0.0.7 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 7 packages to latest compatible versions
[INFO] [stderr]       Adding cfg_aliases v0.1.1 (available: v0.2.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9bf355d996e9c15ad4e0b59ab3dcf19bcb9a44df9ea9bfa1e552e02d955e611d
[INFO] running `Command { std: "docker" "start" "-a" "9bf355d996e9c15ad4e0b59ab3dcf19bcb9a44df9ea9bfa1e552e02d955e611d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9bf355d996e9c15ad4e0b59ab3dcf19bcb9a44df9ea9bfa1e552e02d955e611d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bf355d996e9c15ad4e0b59ab3dcf19bcb9a44df9ea9bfa1e552e02d955e611d", kill_on_drop: false }`
[INFO] [stdout] 9bf355d996e9c15ad4e0b59ab3dcf19bcb9a44df9ea9bfa1e552e02d955e611d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fc731e5dad7bd313f0efc2ea94403c50df8d0aabe72d2297e32b5c148145fba0
[INFO] running `Command { std: "docker" "start" "-a" "fc731e5dad7bd313f0efc2ea94403c50df8d0aabe72d2297e32b5c148145fba0", kill_on_drop: false }`
[INFO] [stderr]    Compiling wider_primitives v0.0.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `unstable`
[INFO] [stdout]  --> src/lib.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![cfg_attr(unstable, feature(const_mut_refs))]
[INFO] [stdout]   |             ^^^^^^^^ help: found config with similar value: `feature = "unstable"`
[INFO] [stdout]   |
[INFO] [stdout]   = help: expected names are: `docsrs`, `feature`, and `test` and 31 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(unstable)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(unstable)");` to the top of the `build.rs`
[INFO] [stdout]   = 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: `unstable`
[INFO] [stdout]  --> src/lib.rs:5:13
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![cfg_attr(unstable, feature(const_trait_impl))]
[INFO] [stdout]   |             ^^^^^^^^ help: found config with similar value: `feature = "unstable"`
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(unstable)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(unstable)");` to the top of the `build.rs`
[INFO] [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: `unstable`
[INFO] [stdout]  --> src/lib.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![cfg_attr(unstable, feature(structural_match))]
[INFO] [stdout]   |             ^^^^^^^^ help: found config with similar value: `feature = "unstable"`
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(unstable)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(unstable)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]   --> src/lib.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]   --> src/lib.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `serde`
[INFO] [stdout]   --> src/lib.rs:36:11
[INFO] [stdout]    |
[INFO] [stdout] 36 | #[cfg(any(serde, docsrs))]
[INFO] [stdout]    |           ^^^^^ help: found config with similar value: `feature = "serde"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(serde)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(serde)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]    --> src/lib.rs:128:12
[INFO] [stdout]     |
[INFO] [stdout] 128 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]    --> src/lib.rs:178:12
[INFO] [stdout]     |
[INFO] [stdout] 178 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]     --> src/lib.rs:1802:12
[INFO] [stdout]      |
[INFO] [stdout] 1802 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]      |            ^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]     --> src/lib.rs:1845:12
[INFO] [stdout]      |
[INFO] [stdout] 1845 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]      |            ^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]     --> src/lib.rs:1869:12
[INFO] [stdout]      |
[INFO] [stdout] 1869 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]      |            ^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]     --> src/lib.rs:1877:12
[INFO] [stdout]      |
[INFO] [stdout] 1877 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]      |            ^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]     --> src/lib.rs:1891:12
[INFO] [stdout]      |
[INFO] [stdout] 1891 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]      |            ^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]     --> src/lib.rs:1905:12
[INFO] [stdout]      |
[INFO] [stdout] 1905 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]      |            ^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]     --> src/lib.rs:1919:12
[INFO] [stdout]      |
[INFO] [stdout] 1919 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]      |            ^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]  --> src/uint/mod.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]  --> src/uint/mod.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]   --> src/uint/mod.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `stable`
[INFO] [stdout]   --> src/uint/u256.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[cfg_attr(stable, path = "../stable_ops/u256.rs")]
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(stable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(stable)");` to the top of the `build.rs`
[INFO] [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: `unstable`
[INFO] [stdout]   --> src/uint/u256.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[cfg_attr(unstable, path = "../unstable_ops/u256.rs")]
[INFO] [stdout]    |            ^^^^^^^^ help: found config with similar value: `feature = "unstable"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(unstable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(unstable)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]   --> src/uint/u256.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `stable`
[INFO] [stdout]   --> src/uint/u256.rs:84:12
[INFO] [stdout]    |
[INFO] [stdout] 84 | #[cfg_attr(stable, derive(PartialEq, Eq, Default))]
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(stable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(stable)");` to the top of the `build.rs`
[INFO] [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: `stable`
[INFO] [stdout]   --> src/uint/u384.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[cfg_attr(stable, path = "../stable_ops/u384.rs")]
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(stable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(stable)");` to the top of the `build.rs`
[INFO] [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: `unstable`
[INFO] [stdout]   --> src/uint/u384.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[cfg_attr(unstable, path = "../unstable_ops/u384.rs")]
[INFO] [stdout]    |            ^^^^^^^^ help: found config with similar value: `feature = "unstable"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(unstable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(unstable)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]   --> src/uint/u384.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `stable`
[INFO] [stdout]   --> src/uint/u384.rs:84:12
[INFO] [stdout]    |
[INFO] [stdout] 84 | #[cfg_attr(stable, derive(PartialEq, Eq, Default))]
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(stable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(stable)");` to the top of the `build.rs`
[INFO] [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: `stable`
[INFO] [stdout]   --> src/uint/u512.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[cfg_attr(stable, path = "../stable_ops/u512.rs")]
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(stable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(stable)");` to the top of the `build.rs`
[INFO] [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: `unstable`
[INFO] [stdout]   --> src/uint/u512.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[cfg_attr(unstable, path = "../unstable_ops/u512.rs")]
[INFO] [stdout]    |            ^^^^^^^^ help: found config with similar value: `feature = "unstable"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(unstable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(unstable)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]   --> src/uint/u512.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `stable`
[INFO] [stdout]   --> src/uint/u512.rs:84:12
[INFO] [stdout]    |
[INFO] [stdout] 84 | #[cfg_attr(stable, derive(PartialEq, Eq, Default))]
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(stable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(stable)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]  --> src/int/mod.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]  --> src/int/mod.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]   --> src/int/mod.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `stable`
[INFO] [stdout]   --> src/int/i256.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[cfg_attr(stable, path = "../stable_ops/i256.rs")]
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(stable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(stable)");` to the top of the `build.rs`
[INFO] [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: `unstable`
[INFO] [stdout]   --> src/int/i256.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[cfg_attr(unstable, path = "../unstable_ops/i256.rs")]
[INFO] [stdout]    |            ^^^^^^^^ help: found config with similar value: `feature = "unstable"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(unstable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(unstable)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]   --> src/int/i256.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `stable`
[INFO] [stdout]   --> src/int/i256.rs:96:12
[INFO] [stdout]    |
[INFO] [stdout] 96 | #[cfg_attr(stable, derive(PartialEq, Eq, Default))]
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(stable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(stable)");` to the top of the `build.rs`
[INFO] [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: `stable`
[INFO] [stdout]   --> src/int/i384.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[cfg_attr(stable, path = "../stable_ops/i384.rs")]
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(stable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(stable)");` to the top of the `build.rs`
[INFO] [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: `unstable`
[INFO] [stdout]   --> src/int/i384.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[cfg_attr(unstable, path = "../unstable_ops/i384.rs")]
[INFO] [stdout]    |            ^^^^^^^^ help: found config with similar value: `feature = "unstable"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(unstable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(unstable)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]   --> src/int/i384.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `stable`
[INFO] [stdout]   --> src/int/i384.rs:97:12
[INFO] [stdout]    |
[INFO] [stdout] 97 | #[cfg_attr(stable, derive(PartialEq, Eq, Default))]
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(stable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(stable)");` to the top of the `build.rs`
[INFO] [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: `stable`
[INFO] [stdout]   --> src/int/i512.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[cfg_attr(stable, path = "../stable_ops/i512.rs")]
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(stable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(stable)");` to the top of the `build.rs`
[INFO] [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: `unstable`
[INFO] [stdout]   --> src/int/i512.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[cfg_attr(unstable, path = "../unstable_ops/i512.rs")]
[INFO] [stdout]    |            ^^^^^^^^ help: found config with similar value: `feature = "unstable"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(unstable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(unstable)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]   --> src/int/i512.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `stable`
[INFO] [stdout]   --> src/int/i512.rs:98:12
[INFO] [stdout]    |
[INFO] [stdout] 98 | #[cfg_attr(stable, derive(PartialEq, Eq, Default))]
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(stable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(stable)");` to the top of the `build.rs`
[INFO] [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: `debug`
[INFO] [stdout]    --> src/lib.rs:518:11
[INFO] [stdout]     |
[INFO] [stdout] 518 |     #[cfg(debug)]
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [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: `release`
[INFO] [stdout]    --> src/lib.rs:526:11
[INFO] [stdout]     |
[INFO] [stdout] 526 |     #[cfg(release)]
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(release)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(release)");` to the top of the `build.rs`
[INFO] [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: `debug`
[INFO] [stdout]    --> src/lib.rs:563:11
[INFO] [stdout]     |
[INFO] [stdout] 563 |     #[cfg(debug)]
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [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: `release`
[INFO] [stdout]    --> src/lib.rs:571:11
[INFO] [stdout]     |
[INFO] [stdout] 571 |     #[cfg(release)]
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(release)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(release)");` to the top of the `build.rs`
[INFO] [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: `debug`
[INFO] [stdout]    --> src/lib.rs:600:11
[INFO] [stdout]     |
[INFO] [stdout] 600 |     #[cfg(debug)]
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [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: `release`
[INFO] [stdout]    --> src/lib.rs:608:11
[INFO] [stdout]     |
[INFO] [stdout] 608 |     #[cfg(release)]
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(release)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(release)");` to the top of the `build.rs`
[INFO] [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: `debug`
[INFO] [stdout]    --> src/lib.rs:636:11
[INFO] [stdout]     |
[INFO] [stdout] 636 |     #[cfg(debug)]
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [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: `release`
[INFO] [stdout]    --> src/lib.rs:644:11
[INFO] [stdout]     |
[INFO] [stdout] 644 |     #[cfg(release)]
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(release)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(release)");` to the top of the `build.rs`
[INFO] [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: `debug`
[INFO] [stdout]    --> src/lib.rs:676:11
[INFO] [stdout]     |
[INFO] [stdout] 676 |     #[cfg(debug)]
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [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: `release`
[INFO] [stdout]    --> src/lib.rs:684:11
[INFO] [stdout]     |
[INFO] [stdout] 684 |     #[cfg(release)]
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(release)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(release)");` to the top of the `build.rs`
[INFO] [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: `debug`
[INFO] [stdout]    --> src/lib.rs:727:11
[INFO] [stdout]     |
[INFO] [stdout] 727 |     #[cfg(debug)]
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [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: `release`
[INFO] [stdout]    --> src/lib.rs:735:11
[INFO] [stdout]     |
[INFO] [stdout] 735 |     #[cfg(release)]
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(release)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(release)");` to the top of the `build.rs`
[INFO] [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: `debug`
[INFO] [stdout]    --> src/lib.rs:789:11
[INFO] [stdout]     |
[INFO] [stdout] 789 |     #[cfg(debug)]
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [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: `release`
[INFO] [stdout]    --> src/lib.rs:797:11
[INFO] [stdout]     |
[INFO] [stdout] 797 |     #[cfg(release)]
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(release)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(release)");` to the top of the `build.rs`
[INFO] [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: `debug`
[INFO] [stdout]    --> src/lib.rs:833:11
[INFO] [stdout]     |
[INFO] [stdout] 833 |     #[cfg(debug)]
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [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: `release`
[INFO] [stdout]    --> src/lib.rs:841:11
[INFO] [stdout]     |
[INFO] [stdout] 841 |     #[cfg(release)]
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(release)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(release)");` to the top of the `build.rs`
[INFO] [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: `debug`
[INFO] [stdout]    --> src/lib.rs:879:11
[INFO] [stdout]     |
[INFO] [stdout] 879 |     #[cfg(debug)]
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [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: `release`
[INFO] [stdout]    --> src/lib.rs:887:11
[INFO] [stdout]     |
[INFO] [stdout] 887 |     #[cfg(release)]
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(release)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(release)");` to the top of the `build.rs`
[INFO] [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: `debug`
[INFO] [stdout]     --> src/lib.rs:1294:11
[INFO] [stdout]      |
[INFO] [stdout] 1294 |     #[cfg(debug)]
[INFO] [stdout]      |           ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [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: `release`
[INFO] [stdout]     --> src/lib.rs:1302:11
[INFO] [stdout]      |
[INFO] [stdout] 1302 |     #[cfg(release)]
[INFO] [stdout]      |           ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(release)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(release)");` to the top of the `build.rs`
[INFO] [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: `debug`
[INFO] [stdout]     --> src/lib.rs:1350:11
[INFO] [stdout]      |
[INFO] [stdout] 1350 |     #[cfg(debug)]
[INFO] [stdout]      |           ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [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: `release`
[INFO] [stdout]     --> src/lib.rs:1358:11
[INFO] [stdout]      |
[INFO] [stdout] 1358 |     #[cfg(release)]
[INFO] [stdout]      |           ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(release)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(release)");` to the top of the `build.rs`
[INFO] [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: `debug`
[INFO] [stdout]     --> src/lib.rs:1405:11
[INFO] [stdout]      |
[INFO] [stdout] 1405 |     #[cfg(debug)]
[INFO] [stdout]      |           ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [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: `release`
[INFO] [stdout]     --> src/lib.rs:1413:11
[INFO] [stdout]      |
[INFO] [stdout] 1413 |     #[cfg(release)]
[INFO] [stdout]      |           ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(release)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(release)");` to the top of the `build.rs`
[INFO] [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: `debug`
[INFO] [stdout]     --> src/lib.rs:1455:11
[INFO] [stdout]      |
[INFO] [stdout] 1455 |     #[cfg(debug)]
[INFO] [stdout]      |           ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [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: `release`
[INFO] [stdout]     --> src/lib.rs:1463:11
[INFO] [stdout]      |
[INFO] [stdout] 1463 |     #[cfg(release)]
[INFO] [stdout]      |           ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(release)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(release)");` to the top of the `build.rs`
[INFO] [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: `debug`
[INFO] [stdout]     --> src/lib.rs:1507:11
[INFO] [stdout]      |
[INFO] [stdout] 1507 |     #[cfg(debug)]
[INFO] [stdout]      |           ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [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: `release`
[INFO] [stdout]     --> src/lib.rs:1515:11
[INFO] [stdout]      |
[INFO] [stdout] 1515 |     #[cfg(release)]
[INFO] [stdout]      |           ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(release)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(release)");` to the top of the `build.rs`
[INFO] [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: `debug`
[INFO] [stdout]     --> src/lib.rs:1737:11
[INFO] [stdout]      |
[INFO] [stdout] 1737 |     #[cfg(debug)]
[INFO] [stdout]      |           ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [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: `release`
[INFO] [stdout]     --> src/lib.rs:1745:11
[INFO] [stdout]      |
[INFO] [stdout] 1745 |     #[cfg(release)]
[INFO] [stdout]      |           ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(release)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(release)");` to the top of the `build.rs`
[INFO] [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: `debug`
[INFO] [stdout]     --> src/lib.rs:1780:11
[INFO] [stdout]      |
[INFO] [stdout] 1780 |     #[cfg(debug)]
[INFO] [stdout]      |           ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [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: `release`
[INFO] [stdout]     --> src/lib.rs:1788:11
[INFO] [stdout]      |
[INFO] [stdout] 1788 |     #[cfg(release)]
[INFO] [stdout]      |           ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(release)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(release)");` to the top of the `build.rs`
[INFO] [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: `unstable`
[INFO] [stdout]  --> src/lib.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![cfg_attr(unstable, feature(const_mut_refs))]
[INFO] [stdout]   |             ^^^^^^^^ help: found config with similar value: `feature = "unstable"`
[INFO] [stdout]   |
[INFO] [stdout]   = help: expected names are: `docsrs`, `feature`, and `test` and 31 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(unstable)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(unstable)");` to the top of the `build.rs`
[INFO] [stdout]   = 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: `unstable`
[INFO] [stdout]  --> src/lib.rs:5:13
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![cfg_attr(unstable, feature(const_trait_impl))]
[INFO] [stdout]   |             ^^^^^^^^ help: found config with similar value: `feature = "unstable"`
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(unstable)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(unstable)");` to the top of the `build.rs`
[INFO] [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: `unstable`
[INFO] [stdout]  --> src/lib.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![cfg_attr(unstable, feature(structural_match))]
[INFO] [stdout]   |             ^^^^^^^^ help: found config with similar value: `feature = "unstable"`
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(unstable)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(unstable)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]   --> src/lib.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]   --> src/lib.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `serde`
[INFO] [stdout]   --> src/lib.rs:36:11
[INFO] [stdout]    |
[INFO] [stdout] 36 | #[cfg(any(serde, docsrs))]
[INFO] [stdout]    |           ^^^^^ help: found config with similar value: `feature = "serde"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(serde)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(serde)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]    --> src/lib.rs:128:12
[INFO] [stdout]     |
[INFO] [stdout] 128 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]    --> src/lib.rs:178:12
[INFO] [stdout]     |
[INFO] [stdout] 178 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]     --> src/lib.rs:1802:12
[INFO] [stdout]      |
[INFO] [stdout] 1802 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]      |            ^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]     --> src/lib.rs:1845:12
[INFO] [stdout]      |
[INFO] [stdout] 1845 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]      |            ^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]     --> src/lib.rs:1869:12
[INFO] [stdout]      |
[INFO] [stdout] 1869 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]      |            ^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]     --> src/lib.rs:1877:12
[INFO] [stdout]      |
[INFO] [stdout] 1877 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]      |            ^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]     --> src/lib.rs:1891:12
[INFO] [stdout]      |
[INFO] [stdout] 1891 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]      |            ^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]     --> src/lib.rs:1905:12
[INFO] [stdout]      |
[INFO] [stdout] 1905 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]      |            ^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]     --> src/lib.rs:1919:12
[INFO] [stdout]      |
[INFO] [stdout] 1919 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]      |            ^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]  --> src/uint/mod.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]  --> src/uint/mod.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]   --> src/uint/mod.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `stable`
[INFO] [stdout]   --> src/uint/u256.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[cfg_attr(stable, path = "../stable_ops/u256.rs")]
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(stable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(stable)");` to the top of the `build.rs`
[INFO] [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: `unstable`
[INFO] [stdout]   --> src/uint/u256.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[cfg_attr(unstable, path = "../unstable_ops/u256.rs")]
[INFO] [stdout]    |            ^^^^^^^^ help: found config with similar value: `feature = "unstable"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(unstable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(unstable)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]   --> src/uint/u256.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `stable`
[INFO] [stdout]   --> src/uint/u256.rs:84:12
[INFO] [stdout]    |
[INFO] [stdout] 84 | #[cfg_attr(stable, derive(PartialEq, Eq, Default))]
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(stable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(stable)");` to the top of the `build.rs`
[INFO] [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: `stable`
[INFO] [stdout]   --> src/uint/u384.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[cfg_attr(stable, path = "../stable_ops/u384.rs")]
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(stable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(stable)");` to the top of the `build.rs`
[INFO] [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: `unstable`
[INFO] [stdout]   --> src/uint/u384.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[cfg_attr(unstable, path = "../unstable_ops/u384.rs")]
[INFO] [stdout]    |            ^^^^^^^^ help: found config with similar value: `feature = "unstable"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(unstable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(unstable)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]   --> src/uint/u384.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `stable`
[INFO] [stdout]   --> src/uint/u384.rs:84:12
[INFO] [stdout]    |
[INFO] [stdout] 84 | #[cfg_attr(stable, derive(PartialEq, Eq, Default))]
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(stable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(stable)");` to the top of the `build.rs`
[INFO] [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: `stable`
[INFO] [stdout]   --> src/uint/u512.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[cfg_attr(stable, path = "../stable_ops/u512.rs")]
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(stable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(stable)");` to the top of the `build.rs`
[INFO] [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: `unstable`
[INFO] [stdout]   --> src/uint/u512.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[cfg_attr(unstable, path = "../unstable_ops/u512.rs")]
[INFO] [stdout]    |            ^^^^^^^^ help: found config with similar value: `feature = "unstable"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(unstable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(unstable)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]   --> src/uint/u512.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `stable`
[INFO] [stdout]   --> src/uint/u512.rs:84:12
[INFO] [stdout]    |
[INFO] [stdout] 84 | #[cfg_attr(stable, derive(PartialEq, Eq, Default))]
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(stable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(stable)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]  --> src/int/mod.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]  --> src/int/mod.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]   --> src/int/mod.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `stable`
[INFO] [stdout]   --> src/int/i256.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[cfg_attr(stable, path = "../stable_ops/i256.rs")]
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(stable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(stable)");` to the top of the `build.rs`
[INFO] [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: `unstable`
[INFO] [stdout]   --> src/int/i256.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[cfg_attr(unstable, path = "../unstable_ops/i256.rs")]
[INFO] [stdout]    |            ^^^^^^^^ help: found config with similar value: `feature = "unstable"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(unstable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(unstable)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]   --> src/int/i256.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `stable`
[INFO] [stdout]   --> src/int/i256.rs:96:12
[INFO] [stdout]    |
[INFO] [stdout] 96 | #[cfg_attr(stable, derive(PartialEq, Eq, Default))]
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(stable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(stable)");` to the top of the `build.rs`
[INFO] [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: `stable`
[INFO] [stdout]   --> src/int/i384.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[cfg_attr(stable, path = "../stable_ops/i384.rs")]
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(stable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(stable)");` to the top of the `build.rs`
[INFO] [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: `unstable`
[INFO] [stdout]   --> src/int/i384.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[cfg_attr(unstable, path = "../unstable_ops/i384.rs")]
[INFO] [stdout]    |            ^^^^^^^^ help: found config with similar value: `feature = "unstable"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(unstable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(unstable)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]   --> src/int/i384.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `stable`
[INFO] [stdout]   --> src/int/i384.rs:97:12
[INFO] [stdout]    |
[INFO] [stdout] 97 | #[cfg_attr(stable, derive(PartialEq, Eq, Default))]
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(stable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(stable)");` to the top of the `build.rs`
[INFO] [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: `stable`
[INFO] [stdout]   --> src/int/i512.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[cfg_attr(stable, path = "../stable_ops/i512.rs")]
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(stable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(stable)");` to the top of the `build.rs`
[INFO] [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: `unstable`
[INFO] [stdout]   --> src/int/i512.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[cfg_attr(unstable, path = "../unstable_ops/i512.rs")]
[INFO] [stdout]    |            ^^^^^^^^ help: found config with similar value: `feature = "unstable"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(unstable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(unstable)");` to the top of the `build.rs`
[INFO] [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: `hide_internal`
[INFO] [stdout]   --> src/int/i512.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | #[cfg_attr(hide_internal, doc(hidden))]
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(hide_internal)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(hide_internal)");` to the top of the `build.rs`
[INFO] [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: `stable`
[INFO] [stdout]   --> src/int/i512.rs:98:12
[INFO] [stdout]    |
[INFO] [stdout] 98 | #[cfg_attr(stable, derive(PartialEq, Eq, Default))]
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(stable)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(stable)");` to the top of the `build.rs`
[INFO] [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: `debug`
[INFO] [stdout]    --> src/lib.rs:518:11
[INFO] [stdout]     |
[INFO] [stdout] 518 |     #[cfg(debug)]
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [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: `release`
[INFO] [stdout]    --> src/lib.rs:526:11
[INFO] [stdout]     |
[INFO] [stdout] 526 |     #[cfg(release)]
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(release)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(release)");` to the top of the `build.rs`
[INFO] [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: `debug`
[INFO] [stdout]    --> src/lib.rs:563:11
[INFO] [stdout]     |
[INFO] [stdout] 563 |     #[cfg(debug)]
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [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: `release`
[INFO] [stdout]    --> src/lib.rs:571:11
[INFO] [stdout]     |
[INFO] [stdout] 571 |     #[cfg(release)]
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(release)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(release)");` to the top of the `build.rs`
[INFO] [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: `debug`
[INFO] [stdout]    --> src/lib.rs:600:11
[INFO] [stdout]     |
[INFO] [stdout] 600 |     #[cfg(debug)]
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [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: `release`
[INFO] [stdout]    --> src/lib.rs:608:11
[INFO] [stdout]     |
[INFO] [stdout] 608 |     #[cfg(release)]
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(release)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(release)");` to the top of the `build.rs`
[INFO] [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: `debug`
[INFO] [stdout]    --> src/lib.rs:636:11
[INFO] [stdout]     |
[INFO] [stdout] 636 |     #[cfg(debug)]
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [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: `release`
[INFO] [stdout]    --> src/lib.rs:644:11
[INFO] [stdout]     |
[INFO] [stdout] 644 |     #[cfg(release)]
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(release)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(release)");` to the top of the `build.rs`
[INFO] [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: `debug`
[INFO] [stdout]    --> src/lib.rs:676:11
[INFO] [stdout]     |
[INFO] [stdout] 676 |     #[cfg(debug)]
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [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: `release`
[INFO] [stdout]    --> src/lib.rs:684:11
[INFO] [stdout]     |
[INFO] [stdout] 684 |     #[cfg(release)]
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(release)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(release)");` to the top of the `build.rs`
[INFO] [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: `debug`
[INFO] [stdout]    --> src/lib.rs:727:11
[INFO] [stdout]     |
[INFO] [stdout] 727 |     #[cfg(debug)]
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [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: `release`
[INFO] [stdout]    --> src/lib.rs:735:11
[INFO] [stdout]     |
[INFO] [stdout] 735 |     #[cfg(release)]
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(release)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(release)");` to the top of the `build.rs`
[INFO] [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: `debug`
[INFO] [stdout]    --> src/lib.rs:789:11
[INFO] [stdout]     |
[INFO] [stdout] 789 |     #[cfg(debug)]
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [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: `release`
[INFO] [stdout]    --> src/lib.rs:797:11
[INFO] [stdout]     |
[INFO] [stdout] 797 |     #[cfg(release)]
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(release)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(release)");` to the top of the `build.rs`
[INFO] [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: `debug`
[INFO] [stdout]    --> src/lib.rs:833:11
[INFO] [stdout]     |
[INFO] [stdout] 833 |     #[cfg(debug)]
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [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: `release`
[INFO] [stdout]    --> src/lib.rs:841:11
[INFO] [stdout]     |
[INFO] [stdout] 841 |     #[cfg(release)]
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(release)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(release)");` to the top of the `build.rs`
[INFO] [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: `debug`
[INFO] [stdout]    --> src/lib.rs:879:11
[INFO] [stdout]     |
[INFO] [stdout] 879 |     #[cfg(debug)]
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [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: `release`
[INFO] [stdout]    --> src/lib.rs:887:11
[INFO] [stdout]     |
[INFO] [stdout] 887 |     #[cfg(release)]
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(release)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(release)");` to the top of the `build.rs`
[INFO] [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: `debug`
[INFO] [stdout]     --> src/lib.rs:1294:11
[INFO] [stdout]      |
[INFO] [stdout] 1294 |     #[cfg(debug)]
[INFO] [stdout]      |           ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [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: `release`
[INFO] [stdout]     --> src/lib.rs:1302:11
[INFO] [stdout]      |
[INFO] [stdout] 1302 |     #[cfg(release)]
[INFO] [stdout]      |           ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(release)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(release)");` to the top of the `build.rs`
[INFO] [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: `debug`
[INFO] [stdout]     --> src/lib.rs:1350:11
[INFO] [stdout]      |
[INFO] [stdout] 1350 |     #[cfg(debug)]
[INFO] [stdout]      |           ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [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: `release`
[INFO] [stdout]     --> src/lib.rs:1358:11
[INFO] [stdout]      |
[INFO] [stdout] 1358 |     #[cfg(release)]
[INFO] [stdout]      |           ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(release)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(release)");` to the top of the `build.rs`
[INFO] [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: `debug`
[INFO] [stdout]     --> src/lib.rs:1405:11
[INFO] [stdout]      |
[INFO] [stdout] 1405 |     #[cfg(debug)]
[INFO] [stdout]      |           ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [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: `release`
[INFO] [stdout]     --> src/lib.rs:1413:11
[INFO] [stdout]      |
[INFO] [stdout] 1413 |     #[cfg(release)]
[INFO] [stdout]      |           ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(release)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(release)");` to the top of the `build.rs`
[INFO] [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: `debug`
[INFO] [stdout]     --> src/lib.rs:1455:11
[INFO] [stdout]      |
[INFO] [stdout] 1455 |     #[cfg(debug)]
[INFO] [stdout]      |           ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [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: `release`
[INFO] [stdout]     --> src/lib.rs:1463:11
[INFO] [stdout]      |
[INFO] [stdout] 1463 |     #[cfg(release)]
[INFO] [stdout]      |           ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(release)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(release)");` to the top of the `build.rs`
[INFO] [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: `debug`
[INFO] [stdout]     --> src/lib.rs:1507:11
[INFO] [stdout]      |
[INFO] [stdout] 1507 |     #[cfg(debug)]
[INFO] [stdout]      |           ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [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: `release`
[INFO] [stdout]     --> src/lib.rs:1515:11
[INFO] [stdout]      |
[INFO] [stdout] 1515 |     #[cfg(release)]
[INFO] [stdout]      |           ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(release)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(release)");` to the top of the `build.rs`
[INFO] [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: `debug`
[INFO] [stdout]     --> src/lib.rs:1737:11
[INFO] [stdout]      |
[INFO] [stdout] 1737 |     #[cfg(debug)]
[INFO] [stdout]      |           ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [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: `release`
[INFO] [stdout]     --> src/lib.rs:1745:11
[INFO] [stdout]      |
[INFO] [stdout] 1745 |     #[cfg(release)]
[INFO] [stdout]      |           ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(release)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(release)");` to the top of the `build.rs`
[INFO] [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: `debug`
[INFO] [stdout]     --> src/lib.rs:1780:11
[INFO] [stdout]      |
[INFO] [stdout] 1780 |     #[cfg(debug)]
[INFO] [stdout]      |           ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [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: `release`
[INFO] [stdout]     --> src/lib.rs:1788:11
[INFO] [stdout]      |
[INFO] [stdout] 1788 |     #[cfg(release)]
[INFO] [stdout]      |           ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead
[INFO] [stdout]      = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]               [lints.rust]
[INFO] [stdout]               unexpected_cfgs = { level = "warn", check-cfg = ['cfg(release)'] }
[INFO] [stdout]      = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(release)");` to the top of the `build.rs`
[INFO] [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: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]     --> src/lib.rs:1812:16
[INFO] [stdout]      |
[INFO] [stdout] 1812 |     for val in inner.next() {
[INFO] [stdout]      |                ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to iterate over `inner` remove the call to `next`
[INFO] [stdout]      |
[INFO] [stdout] 1812 -     for val in inner.next() {
[INFO] [stdout] 1812 +     for val in inner.by_ref() {
[INFO] [stdout]      |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]      |
[INFO] [stdout] 1812 -     for val in inner.next() {
[INFO] [stdout] 1812 +     if let Some(val) = inner.next() {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]     --> src/lib.rs:1812:16
[INFO] [stdout]      |
[INFO] [stdout] 1812 |     for val in inner.next() {
[INFO] [stdout]      |                ^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to iterate over `inner` remove the call to `next`
[INFO] [stdout]      |
[INFO] [stdout] 1812 -     for val in inner.next() {
[INFO] [stdout] 1812 +     for val in inner.by_ref() {
[INFO] [stdout]      |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]      |
[INFO] [stdout] 1812 -     for val in inner.next() {
[INFO] [stdout] 1812 +     if let Some(val) = inner.next() {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.32s
[INFO] running `Command { std: "docker" "inspect" "fc731e5dad7bd313f0efc2ea94403c50df8d0aabe72d2297e32b5c148145fba0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc731e5dad7bd313f0efc2ea94403c50df8d0aabe72d2297e32b5c148145fba0", kill_on_drop: false }`
[INFO] [stdout] fc731e5dad7bd313f0efc2ea94403c50df8d0aabe72d2297e32b5c148145fba0