[INFO] fetching crate dfb 1.4.0...
[INFO] testing dfb-1.4.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate dfb 1.4.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate dfb 1.4.0 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 dfb 1.4.0
[INFO] finished tweaking crates.io crate dfb 1.4.0
[INFO] tweaked toml for crates.io crate dfb 1.4.0 written to /workspace/builds/worker-6/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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] c34544bded6fdded4b59e3b5ddb3cb01ed882f331bda0128baa6945201666ab3
[INFO] running `Command { std: "docker" "start" "-a" "c34544bded6fdded4b59e3b5ddb3cb01ed882f331bda0128baa6945201666ab3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c34544bded6fdded4b59e3b5ddb3cb01ed882f331bda0128baa6945201666ab3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c34544bded6fdded4b59e3b5ddb3cb01ed882f331bda0128baa6945201666ab3", kill_on_drop: false }`
[INFO] [stdout] c34544bded6fdded4b59e3b5ddb3cb01ed882f331bda0128baa6945201666ab3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 667d20faf3eeb4f369cf5f1d3fb9b25afc213e7a864f62777883ebb7c1edfd3a
[INFO] running `Command { std: "docker" "start" "-a" "667d20faf3eeb4f369cf5f1d3fb9b25afc213e7a864f62777883ebb7c1edfd3a", kill_on_drop: false }`
[INFO] [stderr]    Compiling dfb v1.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "667d20faf3eeb4f369cf5f1d3fb9b25afc213e7a864f62777883ebb7c1edfd3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "667d20faf3eeb4f369cf5f1d3fb9b25afc213e7a864f62777883ebb7c1edfd3a", kill_on_drop: false }`
[INFO] [stdout] 667d20faf3eeb4f369cf5f1d3fb9b25afc213e7a864f62777883ebb7c1edfd3a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 59c4958f795339c7211be685864657641a9192fa3a52a0fab3711ddffa2444b4
[INFO] running `Command { std: "docker" "start" "-a" "59c4958f795339c7211be685864657641a9192fa3a52a0fab3711ddffa2444b4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling dfb v1.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `Command { std: "docker" "inspect" "59c4958f795339c7211be685864657641a9192fa3a52a0fab3711ddffa2444b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59c4958f795339c7211be685864657641a9192fa3a52a0fab3711ddffa2444b4", kill_on_drop: false }`
[INFO] [stdout] 59c4958f795339c7211be685864657641a9192fa3a52a0fab3711ddffa2444b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 90197869cd0cfb14b433192e5c85cbc2baa7b62b276d512af06edcb770f9f71d
[INFO] running `Command { std: "docker" "start" "-a" "90197869cd0cfb14b433192e5c85cbc2baa7b62b276d512af06edcb770f9f71d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.78s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/dfb-25348c8021667b9c)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test::type_fifo_test ... ok
[INFO] [stdout] test test::type_fifo_test_2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests dfb
[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" "90197869cd0cfb14b433192e5c85cbc2baa7b62b276d512af06edcb770f9f71d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90197869cd0cfb14b433192e5c85cbc2baa7b62b276d512af06edcb770f9f71d", kill_on_drop: false }`
[INFO] [stdout] 90197869cd0cfb14b433192e5c85cbc2baa7b62b276d512af06edcb770f9f71d