[INFO] fetching crate nonempty 0.7.0...
[INFO] testing nonempty-0.7.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate nonempty 0.7.0 into /workspace/builds/worker-118/source
[INFO] validating manifest of crates.io crate nonempty 0.7.0 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 nonempty 0.7.0
[INFO] finished tweaking crates.io crate nonempty 0.7.0
[INFO] tweaked toml for crates.io crate nonempty 0.7.0 written to /workspace/builds/worker-118/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-118/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/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] 2f9b80d4fe41cd3d4ef02331ce6102991157b7a6b558a80349a5b4cd68e52a4e
[INFO] running `Command { std: "docker" "start" "-a" "2f9b80d4fe41cd3d4ef02331ce6102991157b7a6b558a80349a5b4cd68e52a4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f9b80d4fe41cd3d4ef02331ce6102991157b7a6b558a80349a5b4cd68e52a4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f9b80d4fe41cd3d4ef02331ce6102991157b7a6b558a80349a5b4cd68e52a4e", kill_on_drop: false }`
[INFO] [stdout] 2f9b80d4fe41cd3d4ef02331ce6102991157b7a6b558a80349a5b4cd68e52a4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/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] 0614aad3cb6a56e8c910d288ff9fc9309155aaf9d7d7f2ad4b3a3ac864bb75c7
[INFO] running `Command { std: "docker" "start" "-a" "0614aad3cb6a56e8c910d288ff9fc9309155aaf9d7d7f2ad4b3a3ac864bb75c7", kill_on_drop: false }`
[INFO] [stderr]    Compiling nonempty v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `Command { std: "docker" "inspect" "0614aad3cb6a56e8c910d288ff9fc9309155aaf9d7d7f2ad4b3a3ac864bb75c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0614aad3cb6a56e8c910d288ff9fc9309155aaf9d7d7f2ad4b3a3ac864bb75c7", kill_on_drop: false }`
[INFO] [stdout] 0614aad3cb6a56e8c910d288ff9fc9309155aaf9d7d7f2ad4b3a3ac864bb75c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/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] aebab928b5264ec9e7cd4fcff87d04e5b7ca4740e0d7013a76561f2ac6ac474d
[INFO] running `Command { std: "docker" "start" "-a" "aebab928b5264ec9e7cd4fcff87d04e5b7ca4740e0d7013a76561f2ac6ac474d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling nonempty v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 10.31s
[INFO] running `Command { std: "docker" "inspect" "aebab928b5264ec9e7cd4fcff87d04e5b7ca4740e0d7013a76561f2ac6ac474d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aebab928b5264ec9e7cd4fcff87d04e5b7ca4740e0d7013a76561f2ac6ac474d", kill_on_drop: false }`
[INFO] [stdout] aebab928b5264ec9e7cd4fcff87d04e5b7ca4740e0d7013a76561f2ac6ac474d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/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] c9367ffc6d48aa720cd7557fa41a8abe37447bfa7a8e116287a1a29a7d192cf3
[INFO] running `Command { std: "docker" "start" "-a" "c9367ffc6d48aa720cd7557fa41a8abe37447bfa7a8e116287a1a29a7d192cf3", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/nonempty-472675b6115be329)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::test_iter_syntax ... ok
[INFO] [stdout] test tests::test_from_conversion ... ok
[INFO] [stdout] test tests::test_into_iter ... ok
[INFO] [stdout] test tests::test_mutate_head ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests nonempty
[INFO] [stdout] 
[INFO] [stdout] running 26 tests
[INFO] [stdout] test src/lib.rs - NonEmpty<T>::binary_search (line 460) ... ok
[INFO] [stdout] test src/lib.rs - NonEmpty<T>::binary_search_by (line 505) ... ok
[INFO] [stdout] test src/lib.rs - NonEmpty<T>::binary_search_by_key (line 550) ... ok
[INFO] [stdout] test src/lib.rs - NonEmpty<T>::contains (line 166) ... ok
[INFO] [stdout] test src/lib.rs - NonEmpty<T>::iter (line 205) ... ok
[INFO] [stdout] test src/lib.rs - NonEmpty<T>::index (line 759) ... ok
[INFO] [stdout] test src/lib.rs - NonEmpty<T>::first_mut (line 65) ... ok
[INFO] [stdout] test src/lib.rs - NonEmpty<T>::maximum_by (line 625) ... ok
[INFO] [stdout] test src/lib.rs - NonEmpty<T>::append (line 352) ... ok
[INFO] [stdout] test src/lib.rs - NonEmpty<T>::maximum (line 581) ... ok
[INFO] [stdout] test src/lib.rs - NonEmpty<T>::from_vec (line 279) ... ok
[INFO] [stdout] test src/lib.rs - NonEmpty<T>::split_first (line 303) ... ok
[INFO] [stdout] test src/lib.rs - NonEmpty<T>::binary_search (line 474) ... ok
[INFO] [stdout] test src/lib.rs - (line 5) ... ok
[INFO] [stdout] test src/lib.rs - NonEmpty<T>::tail (line 84) ... ok
[INFO] [stdout] test src/lib.rs - NonEmpty<T>::insert (line 115) ... ok
[INFO] [stdout] test src/lib.rs - NonEmpty<T>::maximum_by_key (line 675) ... ok
[INFO] [stdout] test src/lib.rs - NonEmpty<T>::minimum_by (line 653) ... ok
[INFO] [stdout] test src/lib.rs - NonEmpty<T>::minimum_by_key (line 698) ... ok
[INFO] [stdout] test src/lib.rs - NonEmpty<T>::minimum (line 603) ... ok
[INFO] [stdout] test src/lib.rs - NonEmpty<T>::map (line 374) ... ok
[INFO] [stdout] test src/lib.rs - NonEmpty<T>::from_slice (line 250) ... ok
[INFO] [stdout] test src/lib.rs - NonEmpty<T>::flat_map (line 401) ... ok
[INFO] [stdout] test src/lib.rs - NonEmpty<T>::flatten (line 434) ... ok
[INFO] [stdout] test src/lib.rs - NonEmpty<T>::iter_mut (line 221) ... ok
[INFO] [stdout] test src/lib.rs - NonEmpty<T>::split (line 327) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 26 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.64s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c9367ffc6d48aa720cd7557fa41a8abe37447bfa7a8e116287a1a29a7d192cf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9367ffc6d48aa720cd7557fa41a8abe37447bfa7a8e116287a1a29a7d192cf3", kill_on_drop: false }`
[INFO] [stdout] c9367ffc6d48aa720cd7557fa41a8abe37447bfa7a8e116287a1a29a7d192cf3