[INFO] fetching crate luminance-front 0.4.0...
[INFO] testing luminance-front-0.4.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate luminance-front 0.4.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate luminance-front 0.4.0 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 luminance-front 0.4.0
[INFO] finished tweaking crates.io crate luminance-front 0.4.0
[INFO] tweaked toml for crates.io crate luminance-front 0.4.0 written to /workspace/builds/worker-8/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] [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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 4046bfe4d1cc6eb683fa6552095839185131cf39f3a3d938a20c5deae21f8e73
[INFO] running `Command { std: "docker" "start" "-a" "4046bfe4d1cc6eb683fa6552095839185131cf39f3a3d938a20c5deae21f8e73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4046bfe4d1cc6eb683fa6552095839185131cf39f3a3d938a20c5deae21f8e73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4046bfe4d1cc6eb683fa6552095839185131cf39f3a3d938a20c5deae21f8e73", kill_on_drop: false }`
[INFO] [stdout] 4046bfe4d1cc6eb683fa6552095839185131cf39f3a3d938a20c5deae21f8e73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] e0bc29c441017190301c1fd4b49fdca4dcf4c51b933c5ae0a15bbefc8ac4c4ca
[INFO] running `Command { std: "docker" "start" "-a" "e0bc29c441017190301c1fd4b49fdca4dcf4c51b933c5ae0a15bbefc8ac4c4ca", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling gl v0.14.0
[INFO] [stderr]    Compiling luminance-derive v0.7.0
[INFO] [stderr]    Compiling luminance v0.44.0
[INFO] [stderr]    Compiling luminance-gl v0.17.0
[INFO] [stderr]    Compiling luminance-front v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.42s
[INFO] running `Command { std: "docker" "inspect" "e0bc29c441017190301c1fd4b49fdca4dcf4c51b933c5ae0a15bbefc8ac4c4ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0bc29c441017190301c1fd4b49fdca4dcf4c51b933c5ae0a15bbefc8ac4c4ca", kill_on_drop: false }`
[INFO] [stdout] e0bc29c441017190301c1fd4b49fdca4dcf4c51b933c5ae0a15bbefc8ac4c4ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] cadea147210486e61f04cbf7e86e7d46d1b839f338d4a36b83d31749ed9db3ab
[INFO] running `Command { std: "docker" "start" "-a" "cadea147210486e61f04cbf7e86e7d46d1b839f338d4a36b83d31749ed9db3ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling luminance-front v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "cadea147210486e61f04cbf7e86e7d46d1b839f338d4a36b83d31749ed9db3ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cadea147210486e61f04cbf7e86e7d46d1b839f338d4a36b83d31749ed9db3ab", kill_on_drop: false }`
[INFO] [stdout] cadea147210486e61f04cbf7e86e7d46d1b839f338d4a36b83d31749ed9db3ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] b0d9d6a8735c910907fbbe400741eddb3bfb0d4d60bd646e1f2547eab1d26794
[INFO] running `Command { std: "docker" "start" "-a" "b0d9d6a8735c910907fbbe400741eddb3bfb0d4d60bd646e1f2547eab1d26794", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/luminance_front-23f0c6834a592f13)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests luminance-front
[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 2 tests
[INFO] [stdout] test src/lib.rs - (line 27) ... ignored
[INFO] [stdout] test src/lib.rs - (line 43) ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b0d9d6a8735c910907fbbe400741eddb3bfb0d4d60bd646e1f2547eab1d26794", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0d9d6a8735c910907fbbe400741eddb3bfb0d4d60bd646e1f2547eab1d26794", kill_on_drop: false }`
[INFO] [stdout] b0d9d6a8735c910907fbbe400741eddb3bfb0d4d60bd646e1f2547eab1d26794