[INFO] fetching crate screen 0.0.0...
[INFO] testing screen-0.0.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate screen 0.0.0 into /workspace/builds/worker-77/source
[INFO] validating manifest of crates.io crate screen 0.0.0 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 screen 0.0.0
[INFO] finished tweaking crates.io crate screen 0.0.0
[INFO] tweaked toml for crates.io crate screen 0.0.0 written to /workspace/builds/worker-77/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] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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] 38fe8b6bafb9d171c2d137adac9c2c75f7e2c125705e833831a0b8d17d8369f5
[INFO] running `Command { std: "docker" "start" "-a" "38fe8b6bafb9d171c2d137adac9c2c75f7e2c125705e833831a0b8d17d8369f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38fe8b6bafb9d171c2d137adac9c2c75f7e2c125705e833831a0b8d17d8369f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38fe8b6bafb9d171c2d137adac9c2c75f7e2c125705e833831a0b8d17d8369f5", kill_on_drop: false }`
[INFO] [stdout] 38fe8b6bafb9d171c2d137adac9c2c75f7e2c125705e833831a0b8d17d8369f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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] 19351bcad302eaef197bb06c3b6abed21fa6f7b3fcad6828fb8acf4640d329f4
[INFO] running `Command { std: "docker" "start" "-a" "19351bcad302eaef197bb06c3b6abed21fa6f7b3fcad6828fb8acf4640d329f4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling screen v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.61s
[INFO] running `Command { std: "docker" "inspect" "19351bcad302eaef197bb06c3b6abed21fa6f7b3fcad6828fb8acf4640d329f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19351bcad302eaef197bb06c3b6abed21fa6f7b3fcad6828fb8acf4640d329f4", kill_on_drop: false }`
[INFO] [stdout] 19351bcad302eaef197bb06c3b6abed21fa6f7b3fcad6828fb8acf4640d329f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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] d56d9a50935ea338d7279e66110b1ce40c1870f81ad5c53ee01c426330141344
[INFO] running `Command { std: "docker" "start" "-a" "d56d9a50935ea338d7279e66110b1ce40c1870f81ad5c53ee01c426330141344", kill_on_drop: false }`
[INFO] [stderr]    Compiling screen v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "d56d9a50935ea338d7279e66110b1ce40c1870f81ad5c53ee01c426330141344", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d56d9a50935ea338d7279e66110b1ce40c1870f81ad5c53ee01c426330141344", kill_on_drop: false }`
[INFO] [stdout] d56d9a50935ea338d7279e66110b1ce40c1870f81ad5c53ee01c426330141344
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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] 49e1b4ee79cbe539ad7041dcaa866942a2f233070db8a747b0f74011959eb543
[INFO] running `Command { std: "docker" "start" "-a" "49e1b4ee79cbe539ad7041dcaa866942a2f233070db8a747b0f74011959eb543", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.21s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/screen-dea6fa2d1f84c4b3)
[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 screen
[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" "49e1b4ee79cbe539ad7041dcaa866942a2f233070db8a747b0f74011959eb543", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49e1b4ee79cbe539ad7041dcaa866942a2f233070db8a747b0f74011959eb543", kill_on_drop: false }`
[INFO] [stdout] 49e1b4ee79cbe539ad7041dcaa866942a2f233070db8a747b0f74011959eb543