[INFO] fetching crate shared_singleton 0.2.1... [INFO] checking shared_singleton-0.2.1 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170 [INFO] extracting crate shared_singleton 0.2.1 into /workspace/builds/worker-7-tc2/source [INFO] started tweaking crates.io crate shared_singleton 0.2.1 [INFO] finished tweaking crates.io crate shared_singleton 0.2.1 [INFO] tweaked toml for crates.io crate shared_singleton 0.2.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate shared_singleton 0.2.1 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 26 packages to latest compatible versions [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 336de81f0b3fb644f0bdb425248bdc8fd28d41b3775a476fcd954952c866630f [INFO] running `Command { std: "docker" "start" "-a" "336de81f0b3fb644f0bdb425248bdc8fd28d41b3775a476fcd954952c866630f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "336de81f0b3fb644f0bdb425248bdc8fd28d41b3775a476fcd954952c866630f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "336de81f0b3fb644f0bdb425248bdc8fd28d41b3775a476fcd954952c866630f", kill_on_drop: false }` [INFO] [stdout] 336de81f0b3fb644f0bdb425248bdc8fd28d41b3775a476fcd954952c866630f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 372558c66d7d1d847b41b97f6cf100f94f2e99d6b2717bdb5bcce2c98ba1f36e [INFO] running `Command { std: "docker" "start" "-a" "372558c66d7d1d847b41b97f6cf100f94f2e99d6b2717bdb5bcce2c98ba1f36e", kill_on_drop: false }` [INFO] [stderr] Checking shared_singleton v0.2.1 (/opt/rustwide/workdir) [INFO] [stderr] Checking tokio v1.45.1 [INFO] [stdout] warning: unexpected `cfg` condition name: `doc_cfg` [INFO] [stdout] --> src/lib.rs:1:13 [INFO] [stdout] | [INFO] [stdout] 1 | #![cfg_attr(doc_cfg, feature(doc_cfg))] [INFO] [stdout] | ^^^^^^^ [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(doc_cfg)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(doc_cfg)");` to the top of the `build.rs` [INFO] [stdout] = note: see 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: `doc_cfg` [INFO] [stdout] --> src/lib.rs:1:13 [INFO] [stdout] | [INFO] [stdout] 1 | #![cfg_attr(doc_cfg, feature(doc_cfg))] [INFO] [stdout] | ^^^^^^^ [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(doc_cfg)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(doc_cfg)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static [INFO] [stdout] --> src/singleton.rs:20:26 [INFO] [stdout] | [INFO] [stdout] 20 | unsafe { INSTANCE.clone().unwrap() } [INFO] [stdout] | ^^^^^^^^ shared reference to mutable static [INFO] [stdout] ... [INFO] [stdout] 119 | impl_singleton_rc!(Foo, Foo); [INFO] [stdout] | ---------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stdout] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stdout] = note: this warning originates in the macro `__impl_singleton_base` which comes from the expansion of the macro `impl_singleton_rc` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static [INFO] [stdout] --> src/singleton.rs:20:26 [INFO] [stdout] | [INFO] [stdout] 20 | unsafe { INSTANCE.clone().unwrap() } [INFO] [stdout] | ^^^^^^^^ shared reference to mutable static [INFO] [stdout] ... [INFO] [stdout] 126 | impl_singleton_rc_cell!(Foo, Foo); [INFO] [stdout] | --------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stdout] = note: this warning originates in the macro `__impl_singleton_base` which comes from the expansion of the macro `impl_singleton_rc_cell` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static [INFO] [stdout] --> src/singleton.rs:20:26 [INFO] [stdout] | [INFO] [stdout] 20 | unsafe { INSTANCE.clone().unwrap() } [INFO] [stdout] | ^^^^^^^^ shared reference to mutable static [INFO] [stdout] ... [INFO] [stdout] 133 | impl_singleton_rc_refcell!(Foo, Foo); [INFO] [stdout] | ------------------------------------ in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stdout] = note: this warning originates in the macro `__impl_singleton_base` which comes from the expansion of the macro `impl_singleton_rc_refcell` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static [INFO] [stdout] --> src/singleton.rs:20:26 [INFO] [stdout] | [INFO] [stdout] 20 | unsafe { INSTANCE.clone().unwrap() } [INFO] [stdout] | ^^^^^^^^ shared reference to mutable static [INFO] [stdout] ... [INFO] [stdout] 140 | impl_singleton_arc!(Foo, Foo); [INFO] [stdout] | ----------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stdout] = note: this warning originates in the macro `__impl_singleton_base` which comes from the expansion of the macro `impl_singleton_arc` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static [INFO] [stdout] --> src/singleton.rs:20:26 [INFO] [stdout] | [INFO] [stdout] 20 | unsafe { INSTANCE.clone().unwrap() } [INFO] [stdout] | ^^^^^^^^ shared reference to mutable static [INFO] [stdout] ... [INFO] [stdout] 147 | impl_singleton_arc_mutex!(Foo, Foo); [INFO] [stdout] | ----------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stdout] = note: this warning originates in the macro `__impl_singleton_base` which comes from the expansion of the macro `impl_singleton_arc_mutex` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static [INFO] [stdout] --> src/singleton.rs:20:26 [INFO] [stdout] | [INFO] [stdout] 20 | unsafe { INSTANCE.clone().unwrap() } [INFO] [stdout] | ^^^^^^^^ shared reference to mutable static [INFO] [stdout] ... [INFO] [stdout] 154 | impl_singleton_arc_rwlock!(Foo, Foo); [INFO] [stdout] | ------------------------------------ in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stdout] = note: this warning originates in the macro `__impl_singleton_base` which comes from the expansion of the macro `impl_singleton_arc_rwlock` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.43s [INFO] running `Command { std: "docker" "inspect" "372558c66d7d1d847b41b97f6cf100f94f2e99d6b2717bdb5bcce2c98ba1f36e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "372558c66d7d1d847b41b97f6cf100f94f2e99d6b2717bdb5bcce2c98ba1f36e", kill_on_drop: false }` [INFO] [stdout] 372558c66d7d1d847b41b97f6cf100f94f2e99d6b2717bdb5bcce2c98ba1f36e