[INFO] fetching crate similar 1.3.0...
[INFO] testing similar-1.3.0 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate similar 1.3.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate similar 1.3.0 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate similar 1.3.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate similar 1.3.0
[INFO] tweaked toml for crates.io crate similar 1.3.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate similar 1.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_yaml v0.8.15
[INFO] [stderr]   Downloaded serde_derive v1.0.121
[INFO] [stderr]   Downloaded syn v1.0.59
[INFO] [stderr]   Downloaded serde v1.0.121
[INFO] [stderr]   Downloaded similar v1.2.2
[INFO] [stderr]   Downloaded insta v1.6.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 041d0aba7003df381be18ca1c816343097e45881bff7cbb59ff13fbf5efec195
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "041d0aba7003df381be18ca1c816343097e45881bff7cbb59ff13fbf5efec195", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "041d0aba7003df381be18ca1c816343097e45881bff7cbb59ff13fbf5efec195", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "041d0aba7003df381be18ca1c816343097e45881bff7cbb59ff13fbf5efec195", kill_on_drop: false }`
[INFO] [stdout] 041d0aba7003df381be18ca1c816343097e45881bff7cbb59ff13fbf5efec195
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 81bac1f076708620de6595f662f56195ac561a669e846c175ed420ea78024014
[INFO] running `Command { std: "docker" "start" "-a" "81bac1f076708620de6595f662f56195ac561a669e846c175ed420ea78024014", kill_on_drop: false }`
[INFO] [stderr]    Compiling similar v1.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.27s
[INFO] running `Command { std: "docker" "inspect" "81bac1f076708620de6595f662f56195ac561a669e846c175ed420ea78024014", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81bac1f076708620de6595f662f56195ac561a669e846c175ed420ea78024014", kill_on_drop: false }`
[INFO] [stdout] 81bac1f076708620de6595f662f56195ac561a669e846c175ed420ea78024014
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bbc80215791d64637f783eab5b43fe0f86b6c2836763f29c69369b729f5e9ecd
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "bbc80215791d64637f783eab5b43fe0f86b6c2836763f29c69369b729f5e9ecd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.59
[INFO] [stderr]    Compiling serde_derive v1.0.121
[INFO] [stderr]    Compiling serde v1.0.121
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling linked-hash-map v0.5.4
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling dtoa v0.4.7
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling similar v1.2.2
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling terminal_size v0.1.16
[INFO] [stderr]    Compiling console v0.14.0
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling serde_yaml v0.8.15
[INFO] [stderr]    Compiling insta v1.6.3
[INFO] [stderr]    Compiling similar v1.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 33.99s
[INFO] running `Command { std: "docker" "inspect" "bbc80215791d64637f783eab5b43fe0f86b6c2836763f29c69369b729f5e9ecd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbc80215791d64637f783eab5b43fe0f86b6c2836763f29c69369b729f5e9ecd", kill_on_drop: false }`
[INFO] [stdout] bbc80215791d64637f783eab5b43fe0f86b6c2836763f29c69369b729f5e9ecd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7c5d3a899b14d75dc8b3d7131804621a9f30bbfe9819949e6ab88dfc73d8333d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7c5d3a899b14d75dc8b3d7131804621a9f30bbfe9819949e6ab88dfc73d8333d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/similar-be85731725aa90d3)
[INFO] [stdout] 
[INFO] [stdout] running 34 tests
[INFO] [stdout] test algorithms::utils::test_common_prefix_len ... ok
[INFO] [stdout] test algorithms::utils::test_common_suffix_len ... ok
[INFO] [stdout] test algorithms::lcs::test_table ... ok
[INFO] [stdout] test algorithms::utils::test_unique ... ok
[INFO] [stdout] test algorithms::myers::test_find_middle_snake ... ok
[INFO] [stdout] test algorithms::utils::test_int_hasher ... ok
[INFO] [stdout] test text::abstraction::test_split_chars ... ok
[INFO] [stdout] test text::abstraction::test_split_words ... ok
[INFO] [stdout] test text::abstraction::test_split_lines ... ok
[INFO] [stdout] test text::test_get_close_matches ... ok
[INFO] [stdout] test algorithms::myers::test_contiguous ... ok
[INFO] [stdout] test algorithms::replace::test_replace ... ok
[INFO] [stdout] test text::test_line_ops ... ok
[INFO] [stdout] test algorithms::myers::test_diff ... ok
[INFO] [stdout] test algorithms::lcs::test_pat ... ok
[INFO] [stdout] test algorithms::lcs::test_contiguous ... ok
[INFO] [stdout] test algorithms::lcs::test_diff ... ok
[INFO] [stdout] test algorithms::capture::test_capture_hook_grouping ... ok
[INFO] [stdout] test algorithms::patience::test_patience ... ok
[INFO] [stdout] test algorithms::patience::test_patience_out_of_bounds_bug ... ok
[INFO] [stdout] test algorithms::myers::test_pat ... ok
[INFO] [stdout] test text::test_captured_ops ... ok
[INFO] [stdout] test algorithms::replace::test_mayers_replace ... ok
[INFO] [stdout] test text::test_char_diff ... ok
[INFO] [stdout] test text::test_ratio ... ok
[INFO] [stdout] test text::test_lifetimes_on_iter ... ok
[INFO] [stdout] test text::test_captured_word_ops ... ok
[INFO] [stdout] test utils::test_remapper ... ok
[INFO] [stdout] test text::test_unified_diff ... ok
[INFO] [stdout] test udiff::test_unified_diff ... ok
[INFO] [stdout] test text::test_virtual_newlines ... ok
[INFO] [stdout] test udiff::test_empty_unified_diff ... ok
[INFO] [stdout] test udiff::test_unified_diff_newline_hint ... ok
[INFO] [stderr]    Doc-tests similar
[INFO] [stdout] test algorithms::myers::test_deadline_reached ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 34 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.21s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 19 tests
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name similar --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern console=/opt/rustwide/target/debug/deps/libconsole-5cc0a0fabb47b378.rlib --extern insta=/opt/rustwide/target/debug/deps/libinsta-c537b4ce63ab31d1.rlib --extern similar=/opt/rustwide/target/debug/deps/libsimilar-f4ab0bd4351b0918.rlib -C embed-bitcode=no --cfg 'feature="default"' --cfg 'feature="text"' --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "7c5d3a899b14d75dc8b3d7131804621a9f30bbfe9819949e6ab88dfc73d8333d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c5d3a899b14d75dc8b3d7131804621a9f30bbfe9819949e6ab88dfc73d8333d", kill_on_drop: false }`
[INFO] [stdout] 7c5d3a899b14d75dc8b3d7131804621a9f30bbfe9819949e6ab88dfc73d8333d