[INFO] fetching crate core-crate 0.0.0...
[INFO] testing core-crate-0.0.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate core-crate 0.0.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate core-crate 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 core-crate 0.0.0
[INFO] finished tweaking crates.io crate core-crate 0.0.0
[INFO] tweaked toml for crates.io crate core-crate 0.0.0 written to /workspace/builds/worker-4/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] a0d4034449bc31b810ae6e59674cdc356090df97af37d13cb9c2f7100081e36d
[INFO] running `Command { std: "docker" "start" "-a" "a0d4034449bc31b810ae6e59674cdc356090df97af37d13cb9c2f7100081e36d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a0d4034449bc31b810ae6e59674cdc356090df97af37d13cb9c2f7100081e36d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0d4034449bc31b810ae6e59674cdc356090df97af37d13cb9c2f7100081e36d", kill_on_drop: false }`
[INFO] [stdout] a0d4034449bc31b810ae6e59674cdc356090df97af37d13cb9c2f7100081e36d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 4095cbf3c65bed9bbcf0f5374d4e6e53fb190f6f841f8aab8ec1429a04d7fe7d
[INFO] running `Command { std: "docker" "start" "-a" "4095cbf3c65bed9bbcf0f5374d4e6e53fb190f6f841f8aab8ec1429a04d7fe7d", kill_on_drop: false }`
[INFO] [stderr]    Compiling core-crate v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "4095cbf3c65bed9bbcf0f5374d4e6e53fb190f6f841f8aab8ec1429a04d7fe7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4095cbf3c65bed9bbcf0f5374d4e6e53fb190f6f841f8aab8ec1429a04d7fe7d", kill_on_drop: false }`
[INFO] [stdout] 4095cbf3c65bed9bbcf0f5374d4e6e53fb190f6f841f8aab8ec1429a04d7fe7d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] ab082bad13cc79731850e8e31293fca4bca7038074004c2b0c3a16ce0dc17658
[INFO] running `Command { std: "docker" "start" "-a" "ab082bad13cc79731850e8e31293fca4bca7038074004c2b0c3a16ce0dc17658", kill_on_drop: false }`
[INFO] [stderr]    Compiling core-crate v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "ab082bad13cc79731850e8e31293fca4bca7038074004c2b0c3a16ce0dc17658", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab082bad13cc79731850e8e31293fca4bca7038074004c2b0c3a16ce0dc17658", kill_on_drop: false }`
[INFO] [stdout] ab082bad13cc79731850e8e31293fca4bca7038074004c2b0c3a16ce0dc17658
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 740b467ae2acaa8c324baff39e7b0242af7f3d75a7095561f533a5987fdea3ed
[INFO] running `Command { std: "docker" "start" "-a" "740b467ae2acaa8c324baff39e7b0242af7f3d75a7095561f533a5987fdea3ed", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/core_crate-d62511b233eaf613)
[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 core-crate
[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" "740b467ae2acaa8c324baff39e7b0242af7f3d75a7095561f533a5987fdea3ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "740b467ae2acaa8c324baff39e7b0242af7f3d75a7095561f533a5987fdea3ed", kill_on_drop: false }`
[INFO] [stdout] 740b467ae2acaa8c324baff39e7b0242af7f3d75a7095561f533a5987fdea3ed