[INFO] fetching crate art_lib 0.1.2...
[INFO] testing art_lib-0.1.2 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate art_lib 0.1.2 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate art_lib 0.1.2 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 art_lib 0.1.2
[INFO] finished tweaking crates.io crate art_lib 0.1.2
[INFO] tweaked toml for crates.io crate art_lib 0.1.2 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate art_lib 0.1.2 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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] c5942a2f4f6375a7a1c3b37e5ab4692d4b7bfcaf941b9f2dc63e875191fc1975
[INFO] running `Command { std: "docker" "start" "-a" "c5942a2f4f6375a7a1c3b37e5ab4692d4b7bfcaf941b9f2dc63e875191fc1975", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c5942a2f4f6375a7a1c3b37e5ab4692d4b7bfcaf941b9f2dc63e875191fc1975", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5942a2f4f6375a7a1c3b37e5ab4692d4b7bfcaf941b9f2dc63e875191fc1975", kill_on_drop: false }`
[INFO] [stdout] c5942a2f4f6375a7a1c3b37e5ab4692d4b7bfcaf941b9f2dc63e875191fc1975
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] c610178497d085ba7ac1dd28393cf395c02deba9f1b8f3ea778e2acfd720ec21
[INFO] running `Command { std: "docker" "start" "-a" "c610178497d085ba7ac1dd28393cf395c02deba9f1b8f3ea778e2acfd720ec21", kill_on_drop: false }`
[INFO] [stderr]    Compiling art_lib v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "c610178497d085ba7ac1dd28393cf395c02deba9f1b8f3ea778e2acfd720ec21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c610178497d085ba7ac1dd28393cf395c02deba9f1b8f3ea778e2acfd720ec21", kill_on_drop: false }`
[INFO] [stdout] c610178497d085ba7ac1dd28393cf395c02deba9f1b8f3ea778e2acfd720ec21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] fbaaa454e8e7395970d574ff3a82c7ea7efae11f632605bc2f1d0f4afc185afc
[INFO] running `Command { std: "docker" "start" "-a" "fbaaa454e8e7395970d574ff3a82c7ea7efae11f632605bc2f1d0f4afc185afc", kill_on_drop: false }`
[INFO] [stderr]    Compiling art_lib v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "fbaaa454e8e7395970d574ff3a82c7ea7efae11f632605bc2f1d0f4afc185afc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbaaa454e8e7395970d574ff3a82c7ea7efae11f632605bc2f1d0f4afc185afc", kill_on_drop: false }`
[INFO] [stdout] fbaaa454e8e7395970d574ff3a82c7ea7efae11f632605bc2f1d0f4afc185afc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 8a907827b66c4ac41e933d675585e58cef3253290971dd0ad18ed56f946b8bcc
[INFO] running `Command { std: "docker" "start" "-a" "8a907827b66c4ac41e933d675585e58cef3253290971dd0ad18ed56f946b8bcc", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/art_lib-35f2501311f7cd47)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/art_lib-092d04658f49199c)
[INFO] [stdout] test test::test_red_red - should panic ... ok
[INFO] [stdout] test test::test_blue_blue - should panic ... ok
[INFO] [stdout] test test::test_yellow_yellow - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[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 art_lib
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - utils::mix (line 30) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.33s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8a907827b66c4ac41e933d675585e58cef3253290971dd0ad18ed56f946b8bcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a907827b66c4ac41e933d675585e58cef3253290971dd0ad18ed56f946b8bcc", kill_on_drop: false }`
[INFO] [stdout] 8a907827b66c4ac41e933d675585e58cef3253290971dd0ad18ed56f946b8bcc