[INFO] fetching crate gc-sequence 0.2.2...
[INFO] testing gc-sequence-0.2.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate gc-sequence 0.2.2 into /workspace/builds/worker-63/source
[INFO] validating manifest of crates.io crate gc-sequence 0.2.2 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 gc-sequence 0.2.2
[INFO] finished tweaking crates.io crate gc-sequence 0.2.2
[INFO] tweaked toml for crates.io crate gc-sequence 0.2.2 written to /workspace/builds/worker-63/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gc-arena-derive v0.2.2
[INFO] [stderr]   Downloaded gc-arena v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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] 26c7c1d007e034a43866a3c6d7d3b2e8323ebef2e26f27caeb243675134e9780
[INFO] running `Command { std: "docker" "start" "-a" "26c7c1d007e034a43866a3c6d7d3b2e8323ebef2e26f27caeb243675134e9780", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26c7c1d007e034a43866a3c6d7d3b2e8323ebef2e26f27caeb243675134e9780", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26c7c1d007e034a43866a3c6d7d3b2e8323ebef2e26f27caeb243675134e9780", kill_on_drop: false }`
[INFO] [stdout] 26c7c1d007e034a43866a3c6d7d3b2e8323ebef2e26f27caeb243675134e9780
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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] 5c72211687689fbd39e49c2b421b0afbd686a6e64aac17e428c4094aabab48b2
[INFO] running `Command { std: "docker" "start" "-a" "5c72211687689fbd39e49c2b421b0afbd686a6e64aac17e428c4094aabab48b2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling gc-arena-derive v0.2.2
[INFO] [stderr]    Compiling gc-arena v0.2.2
[INFO] [stderr]    Compiling gc-sequence v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.23s
[INFO] running `Command { std: "docker" "inspect" "5c72211687689fbd39e49c2b421b0afbd686a6e64aac17e428c4094aabab48b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c72211687689fbd39e49c2b421b0afbd686a6e64aac17e428c4094aabab48b2", kill_on_drop: false }`
[INFO] [stdout] 5c72211687689fbd39e49c2b421b0afbd686a6e64aac17e428c4094aabab48b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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] 43399a67da77a18c0221ad1522e3471df907df6d40212c01e86897dc59a84ac6
[INFO] running `Command { std: "docker" "start" "-a" "43399a67da77a18c0221ad1522e3471df907df6d40212c01e86897dc59a84ac6", kill_on_drop: false }`
[INFO] [stderr]    Compiling gc-sequence v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.47s
[INFO] running `Command { std: "docker" "inspect" "43399a67da77a18c0221ad1522e3471df907df6d40212c01e86897dc59a84ac6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43399a67da77a18c0221ad1522e3471df907df6d40212c01e86897dc59a84ac6", kill_on_drop: false }`
[INFO] [stdout] 43399a67da77a18c0221ad1522e3471df907df6d40212c01e86897dc59a84ac6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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] 961fe0aea3ea56aa10df115dade68e2bdae3b774736c3952730d8fdf0c99d1d2
[INFO] running `Command { std: "docker" "start" "-a" "961fe0aea3ea56aa10df115dade68e2bdae3b774736c3952730d8fdf0c99d1d2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.27s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/gc_sequence-f29395fddf3caf6e)
[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] [stderr]      Running tests/tests.rs (/opt/rustwide/target/debug/deps/tests-ed5acd82e403d1f5)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_sequencer ... ok
[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] [stderr]    Doc-tests gc-sequence
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/sequencable_arena.rs - make_sequencable_arena (line 11) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.55s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "961fe0aea3ea56aa10df115dade68e2bdae3b774736c3952730d8fdf0c99d1d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "961fe0aea3ea56aa10df115dade68e2bdae3b774736c3952730d8fdf0c99d1d2", kill_on_drop: false }`
[INFO] [stdout] 961fe0aea3ea56aa10df115dade68e2bdae3b774736c3952730d8fdf0c99d1d2