[INFO] fetching crate mutex-trait 0.2.0...
[INFO] testing mutex-trait-0.2.0 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate mutex-trait 0.2.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate mutex-trait 0.2.0 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mutex-trait 0.2.0
[INFO] finished tweaking crates.io crate mutex-trait 0.2.0
[INFO] tweaked toml for crates.io crate mutex-trait 0.2.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 69633bcb8e0ca8f5248ea3091ec24a6a1ba952437cef3e80464c67bb4ed638b0
[INFO] running `Command { std: "docker" "start" "-a" "69633bcb8e0ca8f5248ea3091ec24a6a1ba952437cef3e80464c67bb4ed638b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "69633bcb8e0ca8f5248ea3091ec24a6a1ba952437cef3e80464c67bb4ed638b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69633bcb8e0ca8f5248ea3091ec24a6a1ba952437cef3e80464c67bb4ed638b0", kill_on_drop: false }`
[INFO] [stdout] 69633bcb8e0ca8f5248ea3091ec24a6a1ba952437cef3e80464c67bb4ed638b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f947a3c7fcba81ece107b8503201cb7e7771faae83de2b10614e1dcdd46274d
[INFO] running `Command { std: "docker" "start" "-a" "3f947a3c7fcba81ece107b8503201cb7e7771faae83de2b10614e1dcdd46274d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling mutex-trait v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.21s
[INFO] running `Command { std: "docker" "inspect" "3f947a3c7fcba81ece107b8503201cb7e7771faae83de2b10614e1dcdd46274d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f947a3c7fcba81ece107b8503201cb7e7771faae83de2b10614e1dcdd46274d", kill_on_drop: false }`
[INFO] [stdout] 3f947a3c7fcba81ece107b8503201cb7e7771faae83de2b10614e1dcdd46274d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3b5dbb8cc0d422741b230cc4290bdfa01a2b98c7a18a9df6188ecad59d003f1
[INFO] running `Command { std: "docker" "start" "-a" "f3b5dbb8cc0d422741b230cc4290bdfa01a2b98c7a18a9df6188ecad59d003f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling mutex-trait v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "f3b5dbb8cc0d422741b230cc4290bdfa01a2b98c7a18a9df6188ecad59d003f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3b5dbb8cc0d422741b230cc4290bdfa01a2b98c7a18a9df6188ecad59d003f1", kill_on_drop: false }`
[INFO] [stdout] f3b5dbb8cc0d422741b230cc4290bdfa01a2b98c7a18a9df6188ecad59d003f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 77bd54e22516dc957e8dadb192018c44b9c48409a9f303d7edfb32e91ce45331
[INFO] running `Command { std: "docker" "start" "-a" "77bd54e22516dc957e8dadb192018c44b9c48409a9f303d7edfb32e91ce45331", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mutex_trait-2b8c49ec512486ae)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr]    Doc-tests mutex-trait
[INFO] [stdout] test tests::refcell_lock ... ok
[INFO] [stdout] test tests::exclusive ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - (line 13) ... ok
[INFO] [stdout] test src/lib.rs - prelude (line 53) ... ok
[INFO] [stdout] test src/lib.rs - prelude (line 76) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.44s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "77bd54e22516dc957e8dadb192018c44b9c48409a9f303d7edfb32e91ce45331", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77bd54e22516dc957e8dadb192018c44b9c48409a9f303d7edfb32e91ce45331", kill_on_drop: false }`
[INFO] [stdout] 77bd54e22516dc957e8dadb192018c44b9c48409a9f303d7edfb32e91ce45331