[INFO] fetching crate screen_layer 0.3.1...
[INFO] testing screen_layer-0.3.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate screen_layer 0.3.1 into /workspace/builds/worker-42/source
[INFO] validating manifest of crates.io crate screen_layer 0.3.1 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 screen_layer 0.3.1
[INFO] finished tweaking crates.io crate screen_layer 0.3.1
[INFO] tweaked toml for crates.io crate screen_layer 0.3.1 written to /workspace/builds/worker-42/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-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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] bbb9227e099a3d0cdbe533c36d848736eaba63ecb5b9982bcb9abf2af51503e0
[INFO] running `Command { std: "docker" "start" "-a" "bbb9227e099a3d0cdbe533c36d848736eaba63ecb5b9982bcb9abf2af51503e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bbb9227e099a3d0cdbe533c36d848736eaba63ecb5b9982bcb9abf2af51503e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbb9227e099a3d0cdbe533c36d848736eaba63ecb5b9982bcb9abf2af51503e0", kill_on_drop: false }`
[INFO] [stdout] bbb9227e099a3d0cdbe533c36d848736eaba63ecb5b9982bcb9abf2af51503e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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] 8082af577e4b5333451fd7188953908955e8698ff0e37af6ca05cc0f7ff77e0f
[INFO] running `Command { std: "docker" "start" "-a" "8082af577e4b5333451fd7188953908955e8698ff0e37af6ca05cc0f7ff77e0f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling bytemuck v1.7.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling rgb v0.8.27
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling approx v0.4.0
[INFO] [stderr]    Compiling vek v0.13.1
[INFO] [stderr]    Compiling screen_layer v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.09s
[INFO] running `Command { std: "docker" "inspect" "8082af577e4b5333451fd7188953908955e8698ff0e37af6ca05cc0f7ff77e0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8082af577e4b5333451fd7188953908955e8698ff0e37af6ca05cc0f7ff77e0f", kill_on_drop: false }`
[INFO] [stdout] 8082af577e4b5333451fd7188953908955e8698ff0e37af6ca05cc0f7ff77e0f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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] ffbb2d45f380b7f537ed74951157b325a1597f0f90527dcf87c13015550e48ae
[INFO] running `Command { std: "docker" "start" "-a" "ffbb2d45f380b7f537ed74951157b325a1597f0f90527dcf87c13015550e48ae", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling screen_layer v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `Command { std: "docker" "inspect" "ffbb2d45f380b7f537ed74951157b325a1597f0f90527dcf87c13015550e48ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffbb2d45f380b7f537ed74951157b325a1597f0f90527dcf87c13015550e48ae", kill_on_drop: false }`
[INFO] [stdout] ffbb2d45f380b7f537ed74951157b325a1597f0f90527dcf87c13015550e48ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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] 9447b07326b33b8d9b3b7b42ec8c4142a57f03226265f3fd552e9a7b7238e958
[INFO] running `Command { std: "docker" "start" "-a" "9447b07326b33b8d9b3b7b42ec8c4142a57f03226265f3fd552e9a7b7238e958", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/screen_layer-320d9b344fb50fb8)
[INFO] [stderr]    Doc-tests screen_layer
[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] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 14) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.74s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9447b07326b33b8d9b3b7b42ec8c4142a57f03226265f3fd552e9a7b7238e958", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9447b07326b33b8d9b3b7b42ec8c4142a57f03226265f3fd552e9a7b7238e958", kill_on_drop: false }`
[INFO] [stdout] 9447b07326b33b8d9b3b7b42ec8c4142a57f03226265f3fd552e9a7b7238e958