[INFO] fetching crate concurrency 4.20.1...
[INFO] testing concurrency-4.20.1 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate concurrency 4.20.1 into /workspace/builds/worker-57/source
[INFO] validating manifest of crates.io crate concurrency 4.20.1 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate concurrency 4.20.1
[INFO] finished tweaking crates.io crate concurrency 4.20.1
[INFO] tweaked toml for crates.io crate concurrency 4.20.1 written to /workspace/builds/worker-57/source/Cargo.toml
[INFO] crate crates.io crate concurrency 4.20.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1735006b827469ce1f0aeb2bd432acf98dfe235ab3fbf36c9240175c9e59cf5b
[INFO] running `Command { std: "docker" "start" "-a" "1735006b827469ce1f0aeb2bd432acf98dfe235ab3fbf36c9240175c9e59cf5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1735006b827469ce1f0aeb2bd432acf98dfe235ab3fbf36c9240175c9e59cf5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1735006b827469ce1f0aeb2bd432acf98dfe235ab3fbf36c9240175c9e59cf5b", kill_on_drop: false }`
[INFO] [stdout] 1735006b827469ce1f0aeb2bd432acf98dfe235ab3fbf36c9240175c9e59cf5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] afd95974e6a87494364d2d90181f957dcf65fac07bd9113e0bb726a3e99e3ced
[INFO] running `Command { std: "docker" "start" "-a" "afd95974e6a87494364d2d90181f957dcf65fac07bd9113e0bb726a3e99e3ced", kill_on_drop: false }`
[INFO] [stderr]    Compiling concurrency v4.20.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `Command { std: "docker" "inspect" "afd95974e6a87494364d2d90181f957dcf65fac07bd9113e0bb726a3e99e3ced", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afd95974e6a87494364d2d90181f957dcf65fac07bd9113e0bb726a3e99e3ced", kill_on_drop: false }`
[INFO] [stdout] afd95974e6a87494364d2d90181f957dcf65fac07bd9113e0bb726a3e99e3ced
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bbaa8e2cbc1fd3bc20d7c86e4f15dc9470b227064c691c3ce1fcde24580ad384
[INFO] running `Command { std: "docker" "start" "-a" "bbaa8e2cbc1fd3bc20d7c86e4f15dc9470b227064c691c3ce1fcde24580ad384", kill_on_drop: false }`
[INFO] [stderr]    Compiling concurrency v4.20.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "bbaa8e2cbc1fd3bc20d7c86e4f15dc9470b227064c691c3ce1fcde24580ad384", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbaa8e2cbc1fd3bc20d7c86e4f15dc9470b227064c691c3ce1fcde24580ad384", kill_on_drop: false }`
[INFO] [stdout] bbaa8e2cbc1fd3bc20d7c86e4f15dc9470b227064c691c3ce1fcde24580ad384
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a058793327000033af5d3ab6a93a66d01f7e32b653146ab8649dae377063bb59
[INFO] running `Command { std: "docker" "start" "-a" "a058793327000033af5d3ab6a93a66d01f7e32b653146ab8649dae377063bb59", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/concurrency-061bda90f70b10e3)
[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" "a058793327000033af5d3ab6a93a66d01f7e32b653146ab8649dae377063bb59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a058793327000033af5d3ab6a93a66d01f7e32b653146ab8649dae377063bb59", kill_on_drop: false }`
[INFO] [stdout] a058793327000033af5d3ab6a93a66d01f7e32b653146ab8649dae377063bb59
