[INFO] fetching crate smallqueue 0.1.0...
[INFO] testing smallqueue-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate smallqueue 0.1.0 into /workspace/builds/worker-92/source
[INFO] validating manifest of crates.io crate smallqueue 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 smallqueue 0.1.0
[INFO] finished tweaking crates.io crate smallqueue 0.1.0
[INFO] tweaked toml for crates.io crate smallqueue 0.1.0 written to /workspace/builds/worker-92/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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] 7ec52e531def64d0b28067ab7771633ba90297737e0734261d5ec447b6bc4773
[INFO] running `Command { std: "docker" "start" "-a" "7ec52e531def64d0b28067ab7771633ba90297737e0734261d5ec447b6bc4773", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ec52e531def64d0b28067ab7771633ba90297737e0734261d5ec447b6bc4773", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ec52e531def64d0b28067ab7771633ba90297737e0734261d5ec447b6bc4773", kill_on_drop: false }`
[INFO] [stdout] 7ec52e531def64d0b28067ab7771633ba90297737e0734261d5ec447b6bc4773
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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] 999ab82de47c072ab2a0a28bfffaeff49e443e4f6d17d2fd40cb58aa2742c191
[INFO] running `Command { std: "docker" "start" "-a" "999ab82de47c072ab2a0a28bfffaeff49e443e4f6d17d2fd40cb58aa2742c191", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling through v0.1.0
[INFO] [stderr]    Compiling smallqueue v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.30s
[INFO] running `Command { std: "docker" "inspect" "999ab82de47c072ab2a0a28bfffaeff49e443e4f6d17d2fd40cb58aa2742c191", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "999ab82de47c072ab2a0a28bfffaeff49e443e4f6d17d2fd40cb58aa2742c191", kill_on_drop: false }`
[INFO] [stdout] 999ab82de47c072ab2a0a28bfffaeff49e443e4f6d17d2fd40cb58aa2742c191
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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] 11948a8afea25be63d0c618dce504d5aa2183ada7bbc5f5cc0e2dce0fce7c249
[INFO] running `Command { std: "docker" "start" "-a" "11948a8afea25be63d0c618dce504d5aa2183ada7bbc5f5cc0e2dce0fce7c249", kill_on_drop: false }`
[INFO] [stderr]    Compiling smallqueue v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "11948a8afea25be63d0c618dce504d5aa2183ada7bbc5f5cc0e2dce0fce7c249", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11948a8afea25be63d0c618dce504d5aa2183ada7bbc5f5cc0e2dce0fce7c249", kill_on_drop: false }`
[INFO] [stdout] 11948a8afea25be63d0c618dce504d5aa2183ada7bbc5f5cc0e2dce0fce7c249
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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] 86c088afe031bca7f1ed10aa638efef0d85f94f64fee4f85c21cc567c2703dbf
[INFO] running `Command { std: "docker" "start" "-a" "86c088afe031bca7f1ed10aa638efef0d85f94f64fee4f85c21cc567c2703dbf", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/smallqueue-331bbb4e54508c6d)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests smallqueue
[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" "86c088afe031bca7f1ed10aa638efef0d85f94f64fee4f85c21cc567c2703dbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86c088afe031bca7f1ed10aa638efef0d85f94f64fee4f85c21cc567c2703dbf", kill_on_drop: false }`
[INFO] [stdout] 86c088afe031bca7f1ed10aa638efef0d85f94f64fee4f85c21cc567c2703dbf