[INFO] fetching crate unsend 0.2.1...
[INFO] testing unsend-0.2.1 against master#ec6f9a5b4413f74386267ef8efc93712c2ce6db6 for pr-155739-1
[INFO] extracting crate unsend 0.2.1 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate unsend 0.2.1
[INFO] finished tweaking crates.io crate unsend 0.2.1
[INFO] tweaked toml for crates.io crate unsend 0.2.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate unsend 0.2.1 on toolchain ec6f9a5b4413f74386267ef8efc93712c2ce6db6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate unsend 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-task v4.4.0
[INFO] [stderr]   Downloaded blocking v1.3.1
[INFO] [stderr]   Downloaded async-lock v2.7.0
[INFO] [stderr]   Downloaded concurrent-queue v2.2.0
[INFO] [stderr]   Downloaded atomic-waker v1.1.1
[INFO] [stderr]   Downloaded async-channel v1.8.0
[INFO] [stderr]   Downloaded async-io v1.13.0
[INFO] [stderr]   Downloaded polling v2.8.0
[INFO] [stderr]   Downloaded rustix v0.37.15
[INFO] [stderr]   Downloaded libc v0.2.142
[INFO] [stderr]   Downloaded linux-raw-sys v0.3.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 121a7b73a8102d992dfdf9151a180b8c8446386441f3aab8ed163ef96e341d39
[INFO] running `Command { std: "docker" "start" "-a" "121a7b73a8102d992dfdf9151a180b8c8446386441f3aab8ed163ef96e341d39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "121a7b73a8102d992dfdf9151a180b8c8446386441f3aab8ed163ef96e341d39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "121a7b73a8102d992dfdf9151a180b8c8446386441f3aab8ed163ef96e341d39", kill_on_drop: false }`
[INFO] [stdout] 121a7b73a8102d992dfdf9151a180b8c8446386441f3aab8ed163ef96e341d39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4c0cffc621bb7383956b818f7ffb9c7330521732e579669fb5b538d88f5c03c
[INFO] running `Command { std: "docker" "start" "-a" "d4c0cffc621bb7383956b818f7ffb9c7330521732e579669fb5b538d88f5c03c", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling parking v2.1.0
[INFO] [stderr]    Compiling futures-io v0.3.28
[INFO] [stderr]    Compiling waker-fn v1.1.0
[INFO] [stderr]    Compiling fastrand v1.9.0
[INFO] [stderr]    Compiling async-task v4.4.0
[INFO] [stderr]    Compiling atomic-waker v1.1.1
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling futures-lite v1.13.0
[INFO] [stderr]    Compiling concurrent-queue v2.2.0
[INFO] [stderr]    Compiling unsend v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `coverage`
[INFO] [stdout]   --> src/lib.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 | #![cfg_attr(coverage, feature(no_coverage))]
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 32 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(coverage)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [stdout]    = 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: `coverage`
[INFO] [stdout]    --> src/channel.rs:197:16
[INFO] [stdout]     |
[INFO] [stdout] 197 |     #[cfg_attr(coverage, no_coverage)]
[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(coverage)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [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: `coverage`
[INFO] [stdout]    --> src/channel.rs:217:16
[INFO] [stdout]     |
[INFO] [stdout] 217 |     #[cfg_attr(coverage, no_coverage)]
[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(coverage)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [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: `coverage`
[INFO] [stdout]    --> src/channel.rs:228:16
[INFO] [stdout]     |
[INFO] [stdout] 228 |     #[cfg_attr(coverage, no_coverage)]
[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(coverage)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [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: `coverage`
[INFO] [stdout]    --> src/executor.rs:311:16
[INFO] [stdout]     |
[INFO] [stdout] 311 |     #[cfg_attr(coverage, no_coverage)]
[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(coverage)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [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: `coverage`
[INFO] [stdout]    --> src/executor.rs:482:16
[INFO] [stdout]     |
[INFO] [stdout] 482 |     #[cfg_attr(coverage, no_coverage)]
[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(coverage)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [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: `coverage`
[INFO] [stdout]    --> src/executor.rs:489:16
[INFO] [stdout]     |
[INFO] [stdout] 489 |     #[cfg_attr(coverage, no_coverage)]
[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(coverage)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [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: `coverage`
[INFO] [stdout]    --> src/executor.rs:496:16
[INFO] [stdout]     |
[INFO] [stdout] 496 |     #[cfg_attr(coverage, no_coverage)]
[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(coverage)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [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: `coverage`
[INFO] [stdout]    --> src/executor.rs:503:16
[INFO] [stdout]     |
[INFO] [stdout] 503 |     #[cfg_attr(coverage, no_coverage)]
[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(coverage)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [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: `coverage`
[INFO] [stdout]    --> src/executor.rs:510:16
[INFO] [stdout]     |
[INFO] [stdout] 510 |     #[cfg_attr(coverage, no_coverage)]
[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(coverage)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [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: unused import: `core::sync::atomic`
[INFO] [stdout]   --> src/lib.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub use core::sync::atomic;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.22s
[INFO] running `Command { std: "docker" "inspect" "d4c0cffc621bb7383956b818f7ffb9c7330521732e579669fb5b538d88f5c03c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4c0cffc621bb7383956b818f7ffb9c7330521732e579669fb5b538d88f5c03c", kill_on_drop: false }`
[INFO] [stdout] d4c0cffc621bb7383956b818f7ffb9c7330521732e579669fb5b538d88f5c03c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ec80e6d2dce52f993dd46c80c0f95f1f087aed485fad3ec0bec5ab261cbb223
[INFO] running `Command { std: "docker" "start" "-a" "4ec80e6d2dce52f993dd46c80c0f95f1f087aed485fad3ec0bec5ab261cbb223", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]    Compiling io-lifetimes v1.0.10
[INFO] [stderr]    Compiling polling v2.8.0
[INFO] [stderr]    Compiling rustix v0.37.15
[INFO] [stderr]    Compiling async-lock v2.7.0
[INFO] [stderr]    Compiling async-io v1.13.0
[INFO] [stderr]    Compiling linux-raw-sys v0.3.4
[INFO] [stderr]    Compiling async-channel v1.8.0
[INFO] [stdout] warning: unexpected `cfg` condition name: `coverage`
[INFO] [stdout]   --> src/lib.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 | #![cfg_attr(coverage, feature(no_coverage))]
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 32 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(coverage)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [stdout]    = 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: `coverage`
[INFO] [stdout]    --> src/channel.rs:197:16
[INFO] [stdout]     |
[INFO] [stdout] 197 |     #[cfg_attr(coverage, no_coverage)]
[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(coverage)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [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: `coverage`
[INFO] [stdout]    --> src/channel.rs:217:16
[INFO] [stdout]     |
[INFO] [stdout] 217 |     #[cfg_attr(coverage, no_coverage)]
[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(coverage)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [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: `coverage`
[INFO] [stdout]    --> src/channel.rs:228:16
[INFO] [stdout]     |
[INFO] [stdout] 228 |     #[cfg_attr(coverage, no_coverage)]
[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(coverage)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [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: `coverage`
[INFO] [stdout]    --> src/executor.rs:311:16
[INFO] [stdout]     |
[INFO] [stdout] 311 |     #[cfg_attr(coverage, no_coverage)]
[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(coverage)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [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: `coverage`
[INFO] [stdout]    --> src/executor.rs:482:16
[INFO] [stdout]     |
[INFO] [stdout] 482 |     #[cfg_attr(coverage, no_coverage)]
[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(coverage)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [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: `coverage`
[INFO] [stdout]    --> src/executor.rs:489:16
[INFO] [stdout]     |
[INFO] [stdout] 489 |     #[cfg_attr(coverage, no_coverage)]
[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(coverage)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [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: `coverage`
[INFO] [stdout]    --> src/executor.rs:496:16
[INFO] [stdout]     |
[INFO] [stdout] 496 |     #[cfg_attr(coverage, no_coverage)]
[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(coverage)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [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: `coverage`
[INFO] [stdout]    --> src/executor.rs:503:16
[INFO] [stdout]     |
[INFO] [stdout] 503 |     #[cfg_attr(coverage, no_coverage)]
[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(coverage)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [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: `coverage`
[INFO] [stdout]    --> src/executor.rs:510:16
[INFO] [stdout]     |
[INFO] [stdout] 510 |     #[cfg_attr(coverage, no_coverage)]
[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(coverage)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [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: unused import: `core::sync::atomic`
[INFO] [stdout]   --> src/lib.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub use core::sync::atomic;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling blocking v1.3.1
[INFO] [stderr]    Compiling socket2 v0.4.9
[INFO] [stderr]    Compiling unsend v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `coverage`
[INFO] [stdout]   --> src/lib.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 | #![cfg_attr(coverage, feature(no_coverage))]
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 32 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(coverage)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [stdout]    = 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: `coverage`
[INFO] [stdout]    --> src/channel.rs:197:16
[INFO] [stdout]     |
[INFO] [stdout] 197 |     #[cfg_attr(coverage, no_coverage)]
[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(coverage)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [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: `coverage`
[INFO] [stdout]    --> src/channel.rs:217:16
[INFO] [stdout]     |
[INFO] [stdout] 217 |     #[cfg_attr(coverage, no_coverage)]
[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(coverage)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [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: `coverage`
[INFO] [stdout]    --> src/channel.rs:228:16
[INFO] [stdout]     |
[INFO] [stdout] 228 |     #[cfg_attr(coverage, no_coverage)]
[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(coverage)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [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: `coverage`
[INFO] [stdout]    --> src/executor.rs:311:16
[INFO] [stdout]     |
[INFO] [stdout] 311 |     #[cfg_attr(coverage, no_coverage)]
[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(coverage)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [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: `coverage`
[INFO] [stdout]    --> src/executor.rs:482:16
[INFO] [stdout]     |
[INFO] [stdout] 482 |     #[cfg_attr(coverage, no_coverage)]
[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(coverage)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [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: `coverage`
[INFO] [stdout]    --> src/executor.rs:489:16
[INFO] [stdout]     |
[INFO] [stdout] 489 |     #[cfg_attr(coverage, no_coverage)]
[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(coverage)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [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: `coverage`
[INFO] [stdout]    --> src/executor.rs:496:16
[INFO] [stdout]     |
[INFO] [stdout] 496 |     #[cfg_attr(coverage, no_coverage)]
[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(coverage)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [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: `coverage`
[INFO] [stdout]    --> src/executor.rs:503:16
[INFO] [stdout]     |
[INFO] [stdout] 503 |     #[cfg_attr(coverage, no_coverage)]
[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(coverage)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [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: `coverage`
[INFO] [stdout]    --> src/executor.rs:510:16
[INFO] [stdout]     |
[INFO] [stdout] 510 |     #[cfg_attr(coverage, no_coverage)]
[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(coverage)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [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: unused import: `core::sync::atomic`
[INFO] [stdout]   --> src/lib.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub use core::sync::atomic;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `must_use` that must be used
[INFO] [stdout]    --> src/lock/mod.rs:342:13
[INFO] [stdout]     |
[INFO] [stdout] 342 |             alloc::format!("{:?}", result);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 342 |             let _ = alloc::format!("{:?}", result);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 8.33s
[INFO] running `Command { std: "docker" "inspect" "4ec80e6d2dce52f993dd46c80c0f95f1f087aed485fad3ec0bec5ab261cbb223", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ec80e6d2dce52f993dd46c80c0f95f1f087aed485fad3ec0bec5ab261cbb223", kill_on_drop: false }`
[INFO] [stdout] 4ec80e6d2dce52f993dd46c80c0f95f1f087aed485fad3ec0bec5ab261cbb223
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 29ec632406b0c953be0ec6f8294b72f6aeb70ca6a1e3b45212a069650ee96dbe
[INFO] running `Command { std: "docker" "start" "-a" "29ec632406b0c953be0ec6f8294b72f6aeb70ca6a1e3b45212a069650ee96dbe", kill_on_drop: false }`
[INFO] [stderr] warning: unexpected `cfg` condition name: `coverage`
[INFO] [stderr]   --> src/lib.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 | #![cfg_attr(coverage, feature(no_coverage))]
[INFO] [stderr]    |             ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: expected names are: `docsrs`, `feature`, and `test` and 32 more
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(coverage)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `coverage`
[INFO] [stderr]    --> src/channel.rs:197:16
[INFO] [stderr]     |
[INFO] [stderr] 197 |     #[cfg_attr(coverage, no_coverage)]
[INFO] [stderr]     |                ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(coverage)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `coverage`
[INFO] [stderr]    --> src/channel.rs:217:16
[INFO] [stderr]     |
[INFO] [stderr] 217 |     #[cfg_attr(coverage, no_coverage)]
[INFO] [stderr]     |                ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(coverage)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `coverage`
[INFO] [stderr]    --> src/channel.rs:228:16
[INFO] [stderr]     |
[INFO] [stderr] 228 |     #[cfg_attr(coverage, no_coverage)]
[INFO] [stderr]     |                ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(coverage)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `coverage`
[INFO] [stderr]    --> src/executor.rs:311:16
[INFO] [stderr]     |
[INFO] [stderr] 311 |     #[cfg_attr(coverage, no_coverage)]
[INFO] [stderr]     |                ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(coverage)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `coverage`
[INFO] [stderr]    --> src/executor.rs:482:16
[INFO] [stderr]     |
[INFO] [stderr] 482 |     #[cfg_attr(coverage, no_coverage)]
[INFO] [stderr]     |                ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(coverage)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `coverage`
[INFO] [stderr]    --> src/executor.rs:489:16
[INFO] [stderr]     |
[INFO] [stderr] 489 |     #[cfg_attr(coverage, no_coverage)]
[INFO] [stderr]     |                ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(coverage)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `coverage`
[INFO] [stderr]    --> src/executor.rs:496:16
[INFO] [stderr]     |
[INFO] [stderr] 496 |     #[cfg_attr(coverage, no_coverage)]
[INFO] [stderr]     |                ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(coverage)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `coverage`
[INFO] [stderr]    --> src/executor.rs:503:16
[INFO] [stderr]     |
[INFO] [stderr] 503 |     #[cfg_attr(coverage, no_coverage)]
[INFO] [stderr]     |                ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(coverage)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `coverage`
[INFO] [stderr]    --> src/executor.rs:510:16
[INFO] [stderr]     |
[INFO] [stderr] 510 |     #[cfg_attr(coverage, no_coverage)]
[INFO] [stderr]     |                ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(coverage)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `core::sync::atomic`
[INFO] [stderr]   --> src/lib.rs:50:13
[INFO] [stderr]    |
[INFO] [stderr] 50 |     pub use core::sync::atomic;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `unsend` (lib) generated 11 warnings (run `cargo fix --lib -p unsend` to apply 1 suggestion)
[INFO] [stderr] warning: unused return value of `must_use` that must be used
[INFO] [stderr]    --> src/lock/mod.rs:342:13
[INFO] [stderr]     |
[INFO] [stderr] 342 |             alloc::format!("{:?}", result);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 342 |             let _ = alloc::format!("{:?}", result);
[INFO] [stderr]     |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `unsend` (lib test) generated 12 warnings (11 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/unsend-8ddaf579677baef5)
[INFO] [stdout] 
[INFO] [stdout] running 51 tests
[INFO] [stdout] test channel::tests::test_recv_and_drop ... ok
[INFO] [stdout] test channel::tests::test_channel_clone ... ok
[INFO] [stdout] test channel::tests::test_channel_recv_clone ... ok
[INFO] [stdout] test channel::tests::test_channel_drop ... ok
[INFO] [stdout] test channel::tests::test_channel ... ok
[INFO] [stdout] test event::tests::drop_non_notified ... ok
[INFO] [stdout] test event::tests::drop_notified ... ok
[INFO] [stdout] test event::tests::drop_notified_additional ... ok
[INFO] [stdout] test event::tests::change_waker ... ok
[INFO] [stdout] test event::tests::notify ... ok
[INFO] [stdout] test event::tests::notify_all ... ok
[INFO] [stdout] test event::tests::notify_out_of_range ... ok
[INFO] [stdout] test event::tests::notify_tagged ... ok
[INFO] [stdout] test event::tests::notify_one ... ok
[INFO] [stdout] test event::tests::drop_notified2 ... ok
[INFO] [stdout] test executor::tests::smoke ... ok
[INFO] [stdout] test lock::tests::once_cell_get_mut ... ok
[INFO] [stdout] test lock::tests::barrier_smoke ... ok
[INFO] [stdout] test executor::tests::try_tick ... ok
[INFO] [stdout] test lock::tests::once_cell_set2 ... ok
[INFO] [stdout] test lock::tests::once_cell_wait ... ok
[INFO] [stdout] test executor::tests::smoke_no_thread_id ... ok
[INFO] [stdout] test event::tests::notify_rc ... ok
[INFO] [stdout] test executor::tests::default_smoke ... ok
[INFO] [stdout] test lock::tests::test_mutex ... ok
[INFO] [stdout] test lock::tests::test_mutex_get_mut_into_inner ... ok
[INFO] [stdout] test lock::tests::test_mutex_lock_after_drop ... ok
[INFO] [stdout] test event::tests::notify_tagged_with ... ok
[INFO] [stdout] test event::tests::notify_additional ... ok
[INFO] [stdout] test channel::tests::test_send_direct ... ok
[INFO] [stdout] test lock::tests::once_cell_smoke ... ok
[INFO] [stdout] test event::tests::notify_all_fair ... ok
[INFO] [stdout] test lock::tests::test_mutex_lock_await ... ok
[INFO] [stdout] test lock::tests::test_mutex_try_lock ... ok
[INFO] [stdout] test lock::tests::test_rwlock_get_mut ... ok
[INFO] [stdout] test lock::tests::test_rwlock_read_write_await ... ok
[INFO] [stdout] test lock::tests::test_semaphore ... ok
[INFO] [stdout] test lock::tests::test_semaphore_await ... ok
[INFO] [stdout] test lock::tests::test_semaphore_rc_await ... ok
[INFO] [stdout] test lock::tests::test_semaphore_rc ... ok
[INFO] [stdout] test lock::tests::test_rwlock ... ok
[INFO] [stdout] test lock::tests::test_rwlock_try_read ... ok
[INFO] [stdout] test lock::tests::test_rwlock_try_write ... ok
[INFO] [stdout] test lock::tests::test_mutex_lock_after_drop_try_lock ... ok
[INFO] [stdout] test lock::tests::test_mutex_try_lock_fail ... ok
[INFO] [stdout] test event::tests::negative_test_i128 - should panic ... ok
[INFO] [stdout] test event::tests::negative_test_i32 - should panic ... ok
[INFO] [stdout] test event::tests::negative_test_i64 - should panic ... ok
[INFO] [stdout] test event::tests::negative_test_i16 - should panic ... ok
[INFO] [stdout] test event::tests::negative_test_isize - should panic ... ok
[INFO] [stdout] test event::tests::negative_test_i8 - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 51 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests unsend
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/executor.rs - executor::Executor<'a>::new (line 127) ... ok
[INFO] [stdout] test src/executor.rs - executor::Executor<'a,T>::with_thread_id (line 142) ... ok
[INFO] [stdout] test src/executor.rs - executor::Executor<'a,T>::try_tick (line 221) ... ok
[INFO] [stdout] test src/executor.rs - executor::Executor<'a,T>::tick (line 268) ... ok
[INFO] [stdout] test src/executor.rs - executor::Executor<'a,T>::spawn (line 181) ... ok
[INFO] [stdout] test src/executor.rs - executor::Executor<'a,T>::run (line 287) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.97s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "29ec632406b0c953be0ec6f8294b72f6aeb70ca6a1e3b45212a069650ee96dbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29ec632406b0c953be0ec6f8294b72f6aeb70ca6a1e3b45212a069650ee96dbe", kill_on_drop: false }`
[INFO] [stdout] 29ec632406b0c953be0ec6f8294b72f6aeb70ca6a1e3b45212a069650ee96dbe
