[INFO] fetching crate flower 0.1.0...
[INFO] testing flower-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate flower 0.1.0 into /workspace/builds/worker-50/source
[INFO] validating manifest of crates.io crate flower 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 flower 0.1.0
[INFO] finished tweaking crates.io crate flower 0.1.0
[INFO] tweaked toml for crates.io crate flower 0.1.0 written to /workspace/builds/worker-50/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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] c3ad7cfa46e2c8fbd8b951f2f63d3920e9b84e3675427ec625c2e1e40181b213
[INFO] running `Command { std: "docker" "start" "-a" "c3ad7cfa46e2c8fbd8b951f2f63d3920e9b84e3675427ec625c2e1e40181b213", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3ad7cfa46e2c8fbd8b951f2f63d3920e9b84e3675427ec625c2e1e40181b213", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3ad7cfa46e2c8fbd8b951f2f63d3920e9b84e3675427ec625c2e1e40181b213", kill_on_drop: false }`
[INFO] [stdout] c3ad7cfa46e2c8fbd8b951f2f63d3920e9b84e3675427ec625c2e1e40181b213
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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] 19729e94053179e7d9913d8ba82cefb3304ba825052f8a4f216e59937da60278
[INFO] running `Command { std: "docker" "start" "-a" "19729e94053179e7d9913d8ba82cefb3304ba825052f8a4f216e59937da60278", kill_on_drop: false }`
[INFO] [stderr]    Compiling flower v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `Command { std: "docker" "inspect" "19729e94053179e7d9913d8ba82cefb3304ba825052f8a4f216e59937da60278", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19729e94053179e7d9913d8ba82cefb3304ba825052f8a4f216e59937da60278", kill_on_drop: false }`
[INFO] [stdout] 19729e94053179e7d9913d8ba82cefb3304ba825052f8a4f216e59937da60278
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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] 8bfe7045331a85279c7410ff019bfc529207e377ab5004dac84247080bf566a0
[INFO] running `Command { std: "docker" "start" "-a" "8bfe7045331a85279c7410ff019bfc529207e377ab5004dac84247080bf566a0", kill_on_drop: false }`
[INFO] [stderr]    Compiling flower v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "8bfe7045331a85279c7410ff019bfc529207e377ab5004dac84247080bf566a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bfe7045331a85279c7410ff019bfc529207e377ab5004dac84247080bf566a0", kill_on_drop: false }`
[INFO] [stdout] 8bfe7045331a85279c7410ff019bfc529207e377ab5004dac84247080bf566a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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] eb1b9a23094ebc4180f2fb85cf00b04e1a9739973570e0ba82f02a2a17a4aff8
[INFO] running `Command { std: "docker" "start" "-a" "eb1b9a23094ebc4180f2fb85cf00b04e1a9739973570e0ba82f02a2a17a4aff8", 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]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/flower-ca5e4f4b204f64dc)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... 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 flower
[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" "eb1b9a23094ebc4180f2fb85cf00b04e1a9739973570e0ba82f02a2a17a4aff8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb1b9a23094ebc4180f2fb85cf00b04e1a9739973570e0ba82f02a2a17a4aff8", kill_on_drop: false }`
[INFO] [stdout] eb1b9a23094ebc4180f2fb85cf00b04e1a9739973570e0ba82f02a2a17a4aff8