[INFO] fetching crate iterator-enum 0.2.3...
[INFO] testing iterator-enum-0.2.3 against 1.55.0 for beta-1.56-1
[INFO] extracting crate iterator-enum 0.2.3 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate iterator-enum 0.2.3 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 iterator-enum 0.2.3
[INFO] finished tweaking crates.io crate iterator-enum 0.2.3
[INFO] tweaked toml for crates.io crate iterator-enum 0.2.3 written to /workspace/builds/worker-3/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] 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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 67838f266efa32055f8eb711b629cf81920593779b36c781e115222bf1b47cba
[INFO] running `Command { std: "docker" "start" "-a" "67838f266efa32055f8eb711b629cf81920593779b36c781e115222bf1b47cba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "67838f266efa32055f8eb711b629cf81920593779b36c781e115222bf1b47cba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67838f266efa32055f8eb711b629cf81920593779b36c781e115222bf1b47cba", kill_on_drop: false }`
[INFO] [stdout] 67838f266efa32055f8eb711b629cf81920593779b36c781e115222bf1b47cba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 1370825f8e4a6f90605cff67f2160c9a55134e1c7d7381b869ab72e7eef4398b
[INFO] running `Command { std: "docker" "start" "-a" "1370825f8e4a6f90605cff67f2160c9a55134e1c7d7381b869ab72e7eef4398b", kill_on_drop: false }`
[INFO] [stderr]    Compiling derive_utils v0.11.2
[INFO] [stderr]    Compiling iter-enum v0.2.7
[INFO] [stderr]    Compiling iterator-enum v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.46s
[INFO] running `Command { std: "docker" "inspect" "1370825f8e4a6f90605cff67f2160c9a55134e1c7d7381b869ab72e7eef4398b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1370825f8e4a6f90605cff67f2160c9a55134e1c7d7381b869ab72e7eef4398b", kill_on_drop: false }`
[INFO] [stdout] 1370825f8e4a6f90605cff67f2160c9a55134e1c7d7381b869ab72e7eef4398b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 9bd284b692bcfdf61058d59d0d5a947c03380424b1e586250a9075a4ec5db81d
[INFO] running `Command { std: "docker" "start" "-a" "9bd284b692bcfdf61058d59d0d5a947c03380424b1e586250a9075a4ec5db81d", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling iterator-enum v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.32s
[INFO] running `Command { std: "docker" "inspect" "9bd284b692bcfdf61058d59d0d5a947c03380424b1e586250a9075a4ec5db81d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bd284b692bcfdf61058d59d0d5a947c03380424b1e586250a9075a4ec5db81d", kill_on_drop: false }`
[INFO] [stdout] 9bd284b692bcfdf61058d59d0d5a947c03380424b1e586250a9075a4ec5db81d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] e97c7d6d44f114e3b1b47a80abf126dbae4ecdb5399d5ffcf07028dd829a9e8a
[INFO] running `Command { std: "docker" "start" "-a" "e97c7d6d44f114e3b1b47a80abf126dbae4ecdb5399d5ffcf07028dd829a9e8a", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/iterator_enum-37875cee075758c5)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test.rs (/opt/rustwide/target/debug/deps/test-a22cb06232c2a5cf)
[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 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 iterator-enum
[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" "e97c7d6d44f114e3b1b47a80abf126dbae4ecdb5399d5ffcf07028dd829a9e8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e97c7d6d44f114e3b1b47a80abf126dbae4ecdb5399d5ffcf07028dd829a9e8a", kill_on_drop: false }`
[INFO] [stdout] e97c7d6d44f114e3b1b47a80abf126dbae4ecdb5399d5ffcf07028dd829a9e8a