[INFO] updating cached repository HeroicKatora/automata
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/HeroicKatora/automata
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/HeroicKatora/automata" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/HeroicKatora/automata"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/HeroicKatora/automata'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/HeroicKatora/automata" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/HeroicKatora/automata"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/HeroicKatora/automata'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 32d51d94edeedd2ac1ce98bf31939678beff7bd4
[INFO] sha for GitHub repo HeroicKatora/automata: 32d51d94edeedd2ac1ce98bf31939678beff7bd4
[INFO] validating manifest of HeroicKatora/automata on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of HeroicKatora/automata on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing HeroicKatora/automata
[INFO] finished frobbing HeroicKatora/automata
[INFO] frobbed toml for HeroicKatora/automata written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/HeroicKatora/automata/Cargo.toml
[INFO] started frobbing HeroicKatora/automata
[INFO] finished frobbing HeroicKatora/automata
[INFO] frobbed toml for HeroicKatora/automata written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/HeroicKatora/automata/Cargo.toml
[INFO] crate HeroicKatora/automata has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing HeroicKatora/automata against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-0/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/HeroicKatora/automata:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "build" "--frozen"`
[INFO] [stdout] c1e79e2030114f1f46d0c3ba42d872cc0a9c6f3acfda84d02c876ab4b2af5473
[INFO] running `"docker" "start" "-a" "c1e79e2030114f1f46d0c3ba42d872cc0a9c6f3acfda84d02c876ab4b2af5473"`
[INFO] [stderr]    Compiling automata v0.0.3 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/dot.rs:137:9
[INFO] [stderr]     |
[INFO] [stderr] 137 |         write!(fmt, "\t{} ", id);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.05s
[INFO] running `"docker" "inspect" "c1e79e2030114f1f46d0c3ba42d872cc0a9c6f3acfda84d02c876ab4b2af5473"`
[INFO] running `"docker" "rm" "-f" "c1e79e2030114f1f46d0c3ba42d872cc0a9c6f3acfda84d02c876ab4b2af5473"`
[INFO] [stdout] c1e79e2030114f1f46d0c3ba42d872cc0a9c6f3acfda84d02c876ab4b2af5473
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-0/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/HeroicKatora/automata:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] e40899b05f1cb828ce9ef9329961a75004ea743d65172d2240aa4851371d1405
[INFO] running `"docker" "start" "-a" "e40899b05f1cb828ce9ef9329961a75004ea743d65172d2240aa4851371d1405"`
[INFO] [stderr]    Compiling automata v0.0.3 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/dot.rs:137:9
[INFO] [stderr]     |
[INFO] [stderr] 137 |         write!(fmt, "\t{} ", id);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.10s
[INFO] running `"docker" "inspect" "e40899b05f1cb828ce9ef9329961a75004ea743d65172d2240aa4851371d1405"`
[INFO] running `"docker" "rm" "-f" "e40899b05f1cb828ce9ef9329961a75004ea743d65172d2240aa4851371d1405"`
[INFO] [stdout] e40899b05f1cb828ce9ef9329961a75004ea743d65172d2240aa4851371d1405
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-0/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/HeroicKatora/automata:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen"`
[INFO] [stdout] 9fbd5a9948370ef4f4f14343a3e16b077213a967edbacdd461e4903b0f6d1cfc
[INFO] running `"docker" "start" "-a" "9fbd5a9948370ef4f4f14343a3e16b077213a967edbacdd461e4903b0f6d1cfc"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/automata-47a48e96334a0b47
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test dot::tests::identifiers ... ok
[INFO] [stdout] test dfa::tests::pairing ... ok
[INFO] [stdout] test dfa::tests::contains ... ok
[INFO] [stdout] test dfa::tests::pairing_empty ... ok
[INFO] [stdout] test dfa::tests::build_and_format ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/test-0258b45f100ef6ae
[INFO] [stderr]    Doc-tests automata
[INFO] [stdout] test nfa::tests::build_and_format ... ok
[INFO] [stdout] test nfa::tests::contains ... ok
[INFO] [stdout] test nfa::tests::convert_to_dfa ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[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
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "9fbd5a9948370ef4f4f14343a3e16b077213a967edbacdd461e4903b0f6d1cfc"`
[INFO] running `"docker" "rm" "-f" "9fbd5a9948370ef4f4f14343a3e16b077213a967edbacdd461e4903b0f6d1cfc"`
[INFO] [stdout] 9fbd5a9948370ef4f4f14343a3e16b077213a967edbacdd461e4903b0f6d1cfc