[INFO] fetching crate slock 0.1.2...
[INFO] checking slock-0.1.2 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate slock 0.1.2 into /workspace/builds/worker-40/source
[INFO] validating manifest of crates.io crate slock 0.1.2 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate slock 0.1.2
[INFO] finished tweaking crates.io crate slock 0.1.2
[INFO] tweaked toml for crates.io crate slock 0.1.2 written to /workspace/builds/worker-40/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20eff805d521bd23173adcc53d61398c4a81a7fb0f332248ec6e17d99dd4a766
[INFO] running `Command { std: "docker" "start" "-a" "20eff805d521bd23173adcc53d61398c4a81a7fb0f332248ec6e17d99dd4a766", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20eff805d521bd23173adcc53d61398c4a81a7fb0f332248ec6e17d99dd4a766", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20eff805d521bd23173adcc53d61398c4a81a7fb0f332248ec6e17d99dd4a766", kill_on_drop: false }`
[INFO] [stdout] 20eff805d521bd23173adcc53d61398c4a81a7fb0f332248ec6e17d99dd4a766
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5de610b3b09b5949f881fb172899385fdbb2e17b637fa24c54c7ff1e3b05ccd7
[INFO] running `Command { std: "docker" "start" "-a" "5de610b3b09b5949f881fb172899385fdbb2e17b637fa24c54c7ff1e3b05ccd7", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.18
[INFO] [stderr]     Checking futures-io v0.3.18
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking fastrand v1.5.0
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]    Compiling futures-channel v0.3.18
[INFO] [stderr]    Compiling futures-task v0.3.18
[INFO] [stderr]     Checking futures-sink v0.3.18
[INFO] [stderr]    Compiling futures-util v0.3.18
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking async-task v4.0.3
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.8
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]     Checking socket2 v0.4.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking async-mutex v1.4.0
[INFO] [stderr]     Checking async-lock v2.4.0
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]     Checking async-executor v1.4.1
[INFO] [stderr]     Checking blocking v1.1.0
[INFO] [stderr]    Compiling ctor v0.1.21
[INFO] [stderr]    Compiling futures-macro v0.3.18
[INFO] [stderr]     Checking polling v2.2.0
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking async-io v1.6.0
[INFO] [stderr]     Checking async-global-executor v2.0.2
[INFO] [stderr]     Checking async-std v1.10.0
[INFO] [stderr]     Checking futures-executor v0.3.18
[INFO] [stderr]     Checking futures v0.3.18
[INFO] [stderr]     Checking slock v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> tests/tests.rs:46:6
[INFO] [stdout]    |
[INFO] [stdout] 46 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.09s
[INFO] running `Command { std: "docker" "inspect" "5de610b3b09b5949f881fb172899385fdbb2e17b637fa24c54c7ff1e3b05ccd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5de610b3b09b5949f881fb172899385fdbb2e17b637fa24c54c7ff1e3b05ccd7", kill_on_drop: false }`
[INFO] [stdout] 5de610b3b09b5949f881fb172899385fdbb2e17b637fa24c54c7ff1e3b05ccd7