[INFO] fetching crate dfree 0.2.5...
[INFO] testing dfree-0.2.5 against 1.55.0 for beta-1.56-1
[INFO] extracting crate dfree 0.2.5 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate dfree 0.2.5 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 dfree 0.2.5
[INFO] finished tweaking crates.io crate dfree 0.2.5
[INFO] tweaked toml for crates.io crate dfree 0.2.5 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate dfree 0.2.5 already has a lockfile, it will not be regenerated
[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-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] 2ac9429685250737738406d7dc86d8f27237165277d118f216c3409755952cf9
[INFO] running `Command { std: "docker" "start" "-a" "2ac9429685250737738406d7dc86d8f27237165277d118f216c3409755952cf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ac9429685250737738406d7dc86d8f27237165277d118f216c3409755952cf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ac9429685250737738406d7dc86d8f27237165277d118f216c3409755952cf9", kill_on_drop: false }`
[INFO] [stdout] 2ac9429685250737738406d7dc86d8f27237165277d118f216c3409755952cf9
[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] 51bf90532ee8453b9fa390345b99a230807a49102457012f9aa29b25f5e39a7a
[INFO] running `Command { std: "docker" "start" "-a" "51bf90532ee8453b9fa390345b99a230807a49102457012f9aa29b25f5e39a7a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling sysinfo v0.17.5
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling dfree v0.2.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.37s
[INFO] running `Command { std: "docker" "inspect" "51bf90532ee8453b9fa390345b99a230807a49102457012f9aa29b25f5e39a7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51bf90532ee8453b9fa390345b99a230807a49102457012f9aa29b25f5e39a7a", kill_on_drop: false }`
[INFO] [stdout] 51bf90532ee8453b9fa390345b99a230807a49102457012f9aa29b25f5e39a7a
[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] d00299682a8b2746ca9b0172938368333ca5c8aba861b279d90ae8976d61cf9f
[INFO] running `Command { std: "docker" "start" "-a" "d00299682a8b2746ca9b0172938368333ca5c8aba861b279d90ae8976d61cf9f", kill_on_drop: false }`
[INFO] [stderr]    Compiling dfree v0.2.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.67s
[INFO] running `Command { std: "docker" "inspect" "d00299682a8b2746ca9b0172938368333ca5c8aba861b279d90ae8976d61cf9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d00299682a8b2746ca9b0172938368333ca5c8aba861b279d90ae8976d61cf9f", kill_on_drop: false }`
[INFO] [stdout] d00299682a8b2746ca9b0172938368333ca5c8aba861b279d90ae8976d61cf9f
[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] d1f25104e4003dd291a8c9ce786089c1b5e295e31d7e8adb81e870e66fb18b1c
[INFO] running `Command { std: "docker" "start" "-a" "d1f25104e4003dd291a8c9ce786089c1b5e295e31d7e8adb81e870e66fb18b1c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/dfree-7b0838cffc74c3d6)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::b_format_correct ... ok
[INFO] [stdout] test tests::gb_format_correct ... ok
[INFO] [stdout] test tests::kb_format_correct ... ok
[INFO] [stdout] test tests::max_correct ... ok
[INFO] [stdout] test tests::mb_format_correct ... ok
[INFO] [stdout] test tests::zero_correct ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d1f25104e4003dd291a8c9ce786089c1b5e295e31d7e8adb81e870e66fb18b1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1f25104e4003dd291a8c9ce786089c1b5e295e31d7e8adb81e870e66fb18b1c", kill_on_drop: false }`
[INFO] [stdout] d1f25104e4003dd291a8c9ce786089c1b5e295e31d7e8adb81e870e66fb18b1c