[INFO] fetching crate rumbrella-introtoalgorithms 0.1.0...
[INFO] testing rumbrella-introtoalgorithms-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate rumbrella-introtoalgorithms 0.1.0 into /workspace/builds/worker-81/source
[INFO] validating manifest of crates.io crate rumbrella-introtoalgorithms 0.1.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rumbrella-introtoalgorithms 0.1.0
[INFO] finished tweaking crates.io crate rumbrella-introtoalgorithms 0.1.0
[INFO] tweaked toml for crates.io crate rumbrella-introtoalgorithms 0.1.0 written to /workspace/builds/worker-81/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-81/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e7f8b9d62871bff19d90b10381f822d13502ff838bb96f3ff5398b0199b9c6cd
[INFO] running `Command { std: "docker" "start" "-a" "e7f8b9d62871bff19d90b10381f822d13502ff838bb96f3ff5398b0199b9c6cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7f8b9d62871bff19d90b10381f822d13502ff838bb96f3ff5398b0199b9c6cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7f8b9d62871bff19d90b10381f822d13502ff838bb96f3ff5398b0199b9c6cd", kill_on_drop: false }`
[INFO] [stdout] e7f8b9d62871bff19d90b10381f822d13502ff838bb96f3ff5398b0199b9c6cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 64a9784153f92ac8cafd8fcaa3cd0435465ee53c25d57e6eb72c1cf90a156dd8
[INFO] running `Command { std: "docker" "start" "-a" "64a9784153f92ac8cafd8fcaa3cd0435465ee53c25d57e6eb72c1cf90a156dd8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rumbrella-introtoalgorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.97s
[INFO] running `Command { std: "docker" "inspect" "64a9784153f92ac8cafd8fcaa3cd0435465ee53c25d57e6eb72c1cf90a156dd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64a9784153f92ac8cafd8fcaa3cd0435465ee53c25d57e6eb72c1cf90a156dd8", kill_on_drop: false }`
[INFO] [stdout] 64a9784153f92ac8cafd8fcaa3cd0435465ee53c25d57e6eb72c1cf90a156dd8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc8fee139a6885bd2267e8492be9bab71e6a5bd31775c6fcb021f7ce73f28f72
[INFO] running `Command { std: "docker" "start" "-a" "cc8fee139a6885bd2267e8492be9bab71e6a5bd31775c6fcb021f7ce73f28f72", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rumbrella-introtoalgorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.32s
[INFO] running `Command { std: "docker" "inspect" "cc8fee139a6885bd2267e8492be9bab71e6a5bd31775c6fcb021f7ce73f28f72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc8fee139a6885bd2267e8492be9bab71e6a5bd31775c6fcb021f7ce73f28f72", kill_on_drop: false }`
[INFO] [stdout] cc8fee139a6885bd2267e8492be9bab71e6a5bd31775c6fcb021f7ce73f28f72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 08ee5221564517f8334d7bac1c2e349838cce762dc0dd67975156813dd97b1d0
[INFO] running `Command { std: "docker" "start" "-a" "08ee5221564517f8334d7bac1c2e349838cce762dc0dd67975156813dd97b1d0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.21s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rumbrella_introtoalgorithms-4530a039af5931c0)
[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 rumbrella-introtoalgorithms
[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" "08ee5221564517f8334d7bac1c2e349838cce762dc0dd67975156813dd97b1d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08ee5221564517f8334d7bac1c2e349838cce762dc0dd67975156813dd97b1d0", kill_on_drop: false }`
[INFO] [stdout] 08ee5221564517f8334d7bac1c2e349838cce762dc0dd67975156813dd97b1d0