[INFO] fetching crate rust_book_art 0.1.1...
[INFO] testing rust_book_art-0.1.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate rust_book_art 0.1.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate rust_book_art 0.1.1 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 rust_book_art 0.1.1
[INFO] finished tweaking crates.io crate rust_book_art 0.1.1
[INFO] tweaked toml for crates.io crate rust_book_art 0.1.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate rust_book_art 0.1.1 already has a lockfile, it will not be regenerated
[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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 6a711bdf7b7ce02ccdb74716ac35640444fe94294b6c351f3f3317f70779cf33
[INFO] running `Command { std: "docker" "start" "-a" "6a711bdf7b7ce02ccdb74716ac35640444fe94294b6c351f3f3317f70779cf33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a711bdf7b7ce02ccdb74716ac35640444fe94294b6c351f3f3317f70779cf33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a711bdf7b7ce02ccdb74716ac35640444fe94294b6c351f3f3317f70779cf33", kill_on_drop: false }`
[INFO] [stdout] 6a711bdf7b7ce02ccdb74716ac35640444fe94294b6c351f3f3317f70779cf33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 7c839ce19dd146106cb5449ac7c93dc9ba40482b8a365bc9db503eebd7bb67ab
[INFO] running `Command { std: "docker" "start" "-a" "7c839ce19dd146106cb5449ac7c93dc9ba40482b8a365bc9db503eebd7bb67ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_book_art v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `Command { std: "docker" "inspect" "7c839ce19dd146106cb5449ac7c93dc9ba40482b8a365bc9db503eebd7bb67ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c839ce19dd146106cb5449ac7c93dc9ba40482b8a365bc9db503eebd7bb67ab", kill_on_drop: false }`
[INFO] [stdout] 7c839ce19dd146106cb5449ac7c93dc9ba40482b8a365bc9db503eebd7bb67ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] abf0654f8f871ea241ab0462158c95006d7882b6866add5b93b731b0b66498e1
[INFO] running `Command { std: "docker" "start" "-a" "abf0654f8f871ea241ab0462158c95006d7882b6866add5b93b731b0b66498e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_book_art v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "abf0654f8f871ea241ab0462158c95006d7882b6866add5b93b731b0b66498e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abf0654f8f871ea241ab0462158c95006d7882b6866add5b93b731b0b66498e1", kill_on_drop: false }`
[INFO] [stdout] abf0654f8f871ea241ab0462158c95006d7882b6866add5b93b731b0b66498e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 8a8d1bf1ad573ffee7db7a13da7b526822ff6adf42227865cbb9cbab6340ef86
[INFO] running `Command { std: "docker" "start" "-a" "8a8d1bf1ad573ffee7db7a13da7b526822ff6adf42227865cbb9cbab6340ef86", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_book_art-b8c4bc2e2c37c279)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_book_art-852b227dfc8d4998)
[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] [stderr]    Doc-tests rust_book_art
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 27) ... ok
[INFO] [stdout] test src/lib.rs - (line 12) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.23s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8a8d1bf1ad573ffee7db7a13da7b526822ff6adf42227865cbb9cbab6340ef86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a8d1bf1ad573ffee7db7a13da7b526822ff6adf42227865cbb9cbab6340ef86", kill_on_drop: false }`
[INFO] [stdout] 8a8d1bf1ad573ffee7db7a13da7b526822ff6adf42227865cbb9cbab6340ef86