[INFO] fetching crate scuba 0.0.0...
[INFO] testing scuba-0.0.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate scuba 0.0.0 into /workspace/builds/worker-44/source
[INFO] validating manifest of crates.io crate scuba 0.0.0 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 scuba 0.0.0
[INFO] finished tweaking crates.io crate scuba 0.0.0
[INFO] tweaked toml for crates.io crate scuba 0.0.0 written to /workspace/builds/worker-44/source/Cargo.toml
[INFO] crate crates.io crate scuba 0.0.0 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-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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] 6c0b54cfcd20620047e6f9f14960f72b18aa23aa4d2e0e2070b3f984ea3acc5c
[INFO] running `Command { std: "docker" "start" "-a" "6c0b54cfcd20620047e6f9f14960f72b18aa23aa4d2e0e2070b3f984ea3acc5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c0b54cfcd20620047e6f9f14960f72b18aa23aa4d2e0e2070b3f984ea3acc5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c0b54cfcd20620047e6f9f14960f72b18aa23aa4d2e0e2070b3f984ea3acc5c", kill_on_drop: false }`
[INFO] [stdout] 6c0b54cfcd20620047e6f9f14960f72b18aa23aa4d2e0e2070b3f984ea3acc5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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] a3c390df3d3d760490de7c61061b75d7f7e8ad79f82391cec1c66778eb6817bc
[INFO] running `Command { std: "docker" "start" "-a" "a3c390df3d3d760490de7c61061b75d7f7e8ad79f82391cec1c66778eb6817bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling scuba v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "a3c390df3d3d760490de7c61061b75d7f7e8ad79f82391cec1c66778eb6817bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3c390df3d3d760490de7c61061b75d7f7e8ad79f82391cec1c66778eb6817bc", kill_on_drop: false }`
[INFO] [stdout] a3c390df3d3d760490de7c61061b75d7f7e8ad79f82391cec1c66778eb6817bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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] b6ca6130fd9e01e1ea2b01e8afbd09a4582d4cbb5a890f58c7a892c11c48375e
[INFO] running `Command { std: "docker" "start" "-a" "b6ca6130fd9e01e1ea2b01e8afbd09a4582d4cbb5a890f58c7a892c11c48375e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling scuba v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "b6ca6130fd9e01e1ea2b01e8afbd09a4582d4cbb5a890f58c7a892c11c48375e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6ca6130fd9e01e1ea2b01e8afbd09a4582d4cbb5a890f58c7a892c11c48375e", kill_on_drop: false }`
[INFO] [stdout] b6ca6130fd9e01e1ea2b01e8afbd09a4582d4cbb5a890f58c7a892c11c48375e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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] 55d14ba3dba0bf985240f4659ce058b4e9f3b3338336932a6a11b92feea633a5
[INFO] running `Command { std: "docker" "start" "-a" "55d14ba3dba0bf985240f4659ce058b4e9f3b3338336932a6a11b92feea633a5", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/scuba-8518dfa46b7314e8)
[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" "55d14ba3dba0bf985240f4659ce058b4e9f3b3338336932a6a11b92feea633a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55d14ba3dba0bf985240f4659ce058b4e9f3b3338336932a6a11b92feea633a5", kill_on_drop: false }`
[INFO] [stdout] 55d14ba3dba0bf985240f4659ce058b4e9f3b3338336932a6a11b92feea633a5