[INFO] fetching crate frosty 0.0.2...
[INFO] testing frosty-0.0.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate frosty 0.0.2 into /workspace/builds/worker-54/source
[INFO] validating manifest of crates.io crate frosty 0.0.2 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 frosty 0.0.2
[INFO] finished tweaking crates.io crate frosty 0.0.2
[INFO] tweaked toml for crates.io crate frosty 0.0.2 written to /workspace/builds/worker-54/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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] 447e5fe3cc30a79e1367d3cf0013acc6f50daac2a36aa157da9e0f1b593dcc71
[INFO] running `Command { std: "docker" "start" "-a" "447e5fe3cc30a79e1367d3cf0013acc6f50daac2a36aa157da9e0f1b593dcc71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "447e5fe3cc30a79e1367d3cf0013acc6f50daac2a36aa157da9e0f1b593dcc71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "447e5fe3cc30a79e1367d3cf0013acc6f50daac2a36aa157da9e0f1b593dcc71", kill_on_drop: false }`
[INFO] [stdout] 447e5fe3cc30a79e1367d3cf0013acc6f50daac2a36aa157da9e0f1b593dcc71
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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] 3cb6ee76714b331209d97867885ad42ef685926a60a45107ac5013883ef80d45
[INFO] running `Command { std: "docker" "start" "-a" "3cb6ee76714b331209d97867885ad42ef685926a60a45107ac5013883ef80d45", kill_on_drop: false }`
[INFO] [stderr]    Compiling frosty v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "3cb6ee76714b331209d97867885ad42ef685926a60a45107ac5013883ef80d45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cb6ee76714b331209d97867885ad42ef685926a60a45107ac5013883ef80d45", kill_on_drop: false }`
[INFO] [stdout] 3cb6ee76714b331209d97867885ad42ef685926a60a45107ac5013883ef80d45
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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] 70ac5d8a63cd454816313623ba2039b72d613cff6d7a309113b7f04fa5e0f5f9
[INFO] running `Command { std: "docker" "start" "-a" "70ac5d8a63cd454816313623ba2039b72d613cff6d7a309113b7f04fa5e0f5f9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling frosty v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "70ac5d8a63cd454816313623ba2039b72d613cff6d7a309113b7f04fa5e0f5f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70ac5d8a63cd454816313623ba2039b72d613cff6d7a309113b7f04fa5e0f5f9", kill_on_drop: false }`
[INFO] [stdout] 70ac5d8a63cd454816313623ba2039b72d613cff6d7a309113b7f04fa5e0f5f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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] 76cd5f55947fb5b203c2d0d61d1341d127d79ccaa11a181eb6d8ec9d25fd4d2a
[INFO] running `Command { std: "docker" "start" "-a" "76cd5f55947fb5b203c2d0d61d1341d127d79ccaa11a181eb6d8ec9d25fd4d2a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/frosty-0775161c01fca580)
[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 frosty
[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" "76cd5f55947fb5b203c2d0d61d1341d127d79ccaa11a181eb6d8ec9d25fd4d2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76cd5f55947fb5b203c2d0d61d1341d127d79ccaa11a181eb6d8ec9d25fd4d2a", kill_on_drop: false }`
[INFO] [stdout] 76cd5f55947fb5b203c2d0d61d1341d127d79ccaa11a181eb6d8ec9d25fd4d2a