[INFO] fetching crate screen 0.0.0...
[INFO] testing screen-0.0.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate screen 0.0.0 into /workspace/builds/worker-81/source
[INFO] validating manifest of crates.io crate screen 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 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-81/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 392901e9b3db9811c6c08a4353b969adb2b87a5829a739d8102b4dcb38ee7981
[INFO] running `Command { std: "docker" "start" "-a" "392901e9b3db9811c6c08a4353b969adb2b87a5829a739d8102b4dcb38ee7981", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "392901e9b3db9811c6c08a4353b969adb2b87a5829a739d8102b4dcb38ee7981", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "392901e9b3db9811c6c08a4353b969adb2b87a5829a739d8102b4dcb38ee7981", kill_on_drop: false }`
[INFO] [stdout] 392901e9b3db9811c6c08a4353b969adb2b87a5829a739d8102b4dcb38ee7981
[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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea26a80d1f73071bf28ccc92ad08bb0ced2de667b384c5eb4f35ec71785b1f8b
[INFO] running `Command { std: "docker" "start" "-a" "ea26a80d1f73071bf28ccc92ad08bb0ced2de667b384c5eb4f35ec71785b1f8b", 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 1.98s
[INFO] running `Command { std: "docker" "inspect" "ea26a80d1f73071bf28ccc92ad08bb0ced2de667b384c5eb4f35ec71785b1f8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea26a80d1f73071bf28ccc92ad08bb0ced2de667b384c5eb4f35ec71785b1f8b", kill_on_drop: false }`
[INFO] [stdout] ea26a80d1f73071bf28ccc92ad08bb0ced2de667b384c5eb4f35ec71785b1f8b
[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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aea1148922a7fb136592cff68cccb5ee6d651fe92509adf1dc71b95ec447a93c
[INFO] running `Command { std: "docker" "start" "-a" "aea1148922a7fb136592cff68cccb5ee6d651fe92509adf1dc71b95ec447a93c", kill_on_drop: false }`
[INFO] [stderr]    Compiling screen v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "aea1148922a7fb136592cff68cccb5ee6d651fe92509adf1dc71b95ec447a93c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aea1148922a7fb136592cff68cccb5ee6d651fe92509adf1dc71b95ec447a93c", kill_on_drop: false }`
[INFO] [stdout] aea1148922a7fb136592cff68cccb5ee6d651fe92509adf1dc71b95ec447a93c
[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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3050ad3ff0955f5a046a0496360aa55ad862bfa940896fead11989cb2b2897fe
[INFO] running `Command { std: "docker" "start" "-a" "3050ad3ff0955f5a046a0496360aa55ad862bfa940896fead11989cb2b2897fe", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/screen-591492d2afd50aec)
[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" "3050ad3ff0955f5a046a0496360aa55ad862bfa940896fead11989cb2b2897fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3050ad3ff0955f5a046a0496360aa55ad862bfa940896fead11989cb2b2897fe", kill_on_drop: false }`
[INFO] [stdout] 3050ad3ff0955f5a046a0496360aa55ad862bfa940896fead11989cb2b2897fe