[INFO] fetching crate arc-gc 0.1.0...
[INFO] testing arc-gc-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate arc-gc 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate arc-gc 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate arc-gc 0.1.0
[INFO] finished tweaking crates.io crate arc-gc 0.1.0
[INFO] tweaked toml for crates.io crate arc-gc 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c7a1cb21f7edf9e776834c6aa0de2fb3e50a8f968aaadecd980d729598c5154c
[INFO] running `Command { std: "docker" "start" "-a" "c7a1cb21f7edf9e776834c6aa0de2fb3e50a8f968aaadecd980d729598c5154c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c7a1cb21f7edf9e776834c6aa0de2fb3e50a8f968aaadecd980d729598c5154c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7a1cb21f7edf9e776834c6aa0de2fb3e50a8f968aaadecd980d729598c5154c", kill_on_drop: false }`
[INFO] [stdout] c7a1cb21f7edf9e776834c6aa0de2fb3e50a8f968aaadecd980d729598c5154c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d164a6b88ebb9079d47699d7d7135ba0550b5f029b0b387c731cdfcd2fe02a51
[INFO] running `Command { std: "docker" "start" "-a" "d164a6b88ebb9079d47699d7d7135ba0550b5f029b0b387c731cdfcd2fe02a51", kill_on_drop: false }`
[INFO] [stderr]    Compiling arc-gc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "d164a6b88ebb9079d47699d7d7135ba0550b5f029b0b387c731cdfcd2fe02a51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d164a6b88ebb9079d47699d7d7135ba0550b5f029b0b387c731cdfcd2fe02a51", kill_on_drop: false }`
[INFO] [stdout] d164a6b88ebb9079d47699d7d7135ba0550b5f029b0b387c731cdfcd2fe02a51
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 73f5762bc3a804801b6e9f35216fb5d9b49c7be21ffe99afe45679a360ebd992
[INFO] running `Command { std: "docker" "start" "-a" "73f5762bc3a804801b6e9f35216fb5d9b49c7be21ffe99afe45679a360ebd992", kill_on_drop: false }`
[INFO] [stderr]    Compiling arc-gc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "73f5762bc3a804801b6e9f35216fb5d9b49c7be21ffe99afe45679a360ebd992", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73f5762bc3a804801b6e9f35216fb5d9b49c7be21ffe99afe45679a360ebd992", kill_on_drop: false }`
[INFO] [stdout] 73f5762bc3a804801b6e9f35216fb5d9b49c7be21ffe99afe45679a360ebd992
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fc874cf931fb66b582175607018fc41020bd1594430e8ed319662e6426bc1faa
[INFO] running `Command { std: "docker" "start" "-a" "fc874cf931fb66b582175607018fc41020bd1594430e8ed319662e6426bc1faa", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/arc_gc-8078c36b3e03c0d7)
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stderr]    Doc-tests arc-gc
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 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" "fc874cf931fb66b582175607018fc41020bd1594430e8ed319662e6426bc1faa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc874cf931fb66b582175607018fc41020bd1594430e8ed319662e6426bc1faa", kill_on_drop: false }`
[INFO] [stdout] fc874cf931fb66b582175607018fc41020bd1594430e8ed319662e6426bc1faa