[INFO] fetching crate mutex 1.0.2...
[INFO] testing mutex-1.0.2 against 1.90.0 for beta-1.91-3
[INFO] extracting crate mutex 1.0.2 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate mutex 1.0.2
[INFO] finished tweaking crates.io crate mutex 1.0.2
[INFO] tweaked toml for crates.io crate mutex 1.0.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mutex 1.0.2 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mutex 1.0.2 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded critical-section v1.1.2
[INFO] [stderr]   Downloaded mutex-traits v1.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5d4fd05d9a23b56d6ee22aacf38b4d2b2288236b5bda02666d3d96f3b9674a2d
[INFO] running `Command { std: "docker" "start" "-a" "5d4fd05d9a23b56d6ee22aacf38b4d2b2288236b5bda02666d3d96f3b9674a2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d4fd05d9a23b56d6ee22aacf38b4d2b2288236b5bda02666d3d96f3b9674a2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d4fd05d9a23b56d6ee22aacf38b4d2b2288236b5bda02666d3d96f3b9674a2d", kill_on_drop: false }`
[INFO] [stdout] 5d4fd05d9a23b56d6ee22aacf38b4d2b2288236b5bda02666d3d96f3b9674a2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75714a59ce52eeeecaba52acff038c8ca4e2540958f56abc7bd74717d6235be7
[INFO] running `Command { std: "docker" "start" "-a" "75714a59ce52eeeecaba52acff038c8ca4e2540958f56abc7bd74717d6235be7", kill_on_drop: false }`
[INFO] [stderr]    Compiling mutex v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling mutex-traits v1.0.1
[INFO] [stderr]    Compiling critical-section v1.1.2
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "75714a59ce52eeeecaba52acff038c8ca4e2540958f56abc7bd74717d6235be7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75714a59ce52eeeecaba52acff038c8ca4e2540958f56abc7bd74717d6235be7", kill_on_drop: false }`
[INFO] [stdout] 75714a59ce52eeeecaba52acff038c8ca4e2540958f56abc7bd74717d6235be7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a7913f136fe11d5b8932428b881b3604ab6a0fa02a32d6b285f60bb795aa6a8
[INFO] running `Command { std: "docker" "start" "-a" "1a7913f136fe11d5b8932428b881b3604ab6a0fa02a32d6b285f60bb795aa6a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling mutex v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "1a7913f136fe11d5b8932428b881b3604ab6a0fa02a32d6b285f60bb795aa6a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a7913f136fe11d5b8932428b881b3604ab6a0fa02a32d6b285f60bb795aa6a8", kill_on_drop: false }`
[INFO] [stdout] 1a7913f136fe11d5b8932428b881b3604ab6a0fa02a32d6b285f60bb795aa6a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 546f03ed2b6ae24291f875f303f4851261799cef0b51a49b30e113f1e9df7802
[INFO] running `Command { std: "docker" "start" "-a" "546f03ed2b6ae24291f875f303f4851261799cef0b51a49b30e113f1e9df7802", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mutex-7d183215a97b49d7)
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests mutex
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "546f03ed2b6ae24291f875f303f4851261799cef0b51a49b30e113f1e9df7802", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "546f03ed2b6ae24291f875f303f4851261799cef0b51a49b30e113f1e9df7802", kill_on_drop: false }`
[INFO] [stdout] 546f03ed2b6ae24291f875f303f4851261799cef0b51a49b30e113f1e9df7802