[INFO] fetching crate scache 0.0.0...
[INFO] testing scache-0.0.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate scache 0.0.0 into /workspace/builds/worker-96/source
[INFO] validating manifest of crates.io crate scache 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 scache 0.0.0
[INFO] finished tweaking crates.io crate scache 0.0.0
[INFO] tweaked toml for crates.io crate scache 0.0.0 written to /workspace/builds/worker-96/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-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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] 107f351dbfba7e9f73c7a96e0a7f7ebe5132f4a78f9dd53709795cb6ec8eec29
[INFO] running `Command { std: "docker" "start" "-a" "107f351dbfba7e9f73c7a96e0a7f7ebe5132f4a78f9dd53709795cb6ec8eec29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "107f351dbfba7e9f73c7a96e0a7f7ebe5132f4a78f9dd53709795cb6ec8eec29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "107f351dbfba7e9f73c7a96e0a7f7ebe5132f4a78f9dd53709795cb6ec8eec29", kill_on_drop: false }`
[INFO] [stdout] 107f351dbfba7e9f73c7a96e0a7f7ebe5132f4a78f9dd53709795cb6ec8eec29
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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] 009f8e557f19445701371ea58d6f0d4678a8133be953733e0c5d2c7631db4970
[INFO] running `Command { std: "docker" "start" "-a" "009f8e557f19445701371ea58d6f0d4678a8133be953733e0c5d2c7631db4970", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling scache v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.90s
[INFO] running `Command { std: "docker" "inspect" "009f8e557f19445701371ea58d6f0d4678a8133be953733e0c5d2c7631db4970", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "009f8e557f19445701371ea58d6f0d4678a8133be953733e0c5d2c7631db4970", kill_on_drop: false }`
[INFO] [stdout] 009f8e557f19445701371ea58d6f0d4678a8133be953733e0c5d2c7631db4970
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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] 12cc59e6cbf4db34252524f1112b431fb7f6afaf57170779fd449db47140289e
[INFO] running `Command { std: "docker" "start" "-a" "12cc59e6cbf4db34252524f1112b431fb7f6afaf57170779fd449db47140289e", kill_on_drop: false }`
[INFO] [stderr]    Compiling scache v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.03s
[INFO] running `Command { std: "docker" "inspect" "12cc59e6cbf4db34252524f1112b431fb7f6afaf57170779fd449db47140289e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12cc59e6cbf4db34252524f1112b431fb7f6afaf57170779fd449db47140289e", kill_on_drop: false }`
[INFO] [stdout] 12cc59e6cbf4db34252524f1112b431fb7f6afaf57170779fd449db47140289e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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] accafd44afcbe274dcbd72848f05fe8464e12b3764f7cc3e15f3ee4cf9f51aaf
[INFO] running `Command { std: "docker" "start" "-a" "accafd44afcbe274dcbd72848f05fe8464e12b3764f7cc3e15f3ee4cf9f51aaf", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/scache-9cdf04220409e192)
[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 scache
[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" "accafd44afcbe274dcbd72848f05fe8464e12b3764f7cc3e15f3ee4cf9f51aaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "accafd44afcbe274dcbd72848f05fe8464e12b3764f7cc3e15f3ee4cf9f51aaf", kill_on_drop: false }`
[INFO] [stdout] accafd44afcbe274dcbd72848f05fe8464e12b3764f7cc3e15f3ee4cf9f51aaf