[INFO] updating cached repository https://github.com/cengizIO/anagram-finder
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f09d843ccfeb7e3d1b2f0ea58d689c52e34e9743
[INFO] testing cengizIO/anagram-finder against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FcengizIO%2Fanagram-finder" "work/builds/worker-7/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cengizIO/anagram-finder on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/cengizIO/anagram-finder
[INFO] finished tweaking git repo https://github.com/cengizIO/anagram-finder
[INFO] tweaked toml for git repo https://github.com/cengizIO/anagram-finder written to work/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/cengizIO/anagram-finder already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] b7daf9790232fbdd7c761dc6b437c02d2d38cf8b2dd18a5c16b1b971e9b20c48
[INFO] running `"docker" "start" "-a" "b7daf9790232fbdd7c761dc6b437c02d2d38cf8b2dd18a5c16b1b971e9b20c48"`
[INFO] [stderr]    Compiling anagram v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/anagram.rs:18:13
[INFO] [stderr]    |
[INFO] [stderr] 18 |         let mut words_list = anagrams.entry(word_key).or_insert(Vec::new());
[INFO] [stderr]    |             ----^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `"docker" "inspect" "b7daf9790232fbdd7c761dc6b437c02d2d38cf8b2dd18a5c16b1b971e9b20c48"`
[INFO] running `"docker" "rm" "-f" "b7daf9790232fbdd7c761dc6b437c02d2d38cf8b2dd18a5c16b1b971e9b20c48"`
[INFO] [stdout] b7daf9790232fbdd7c761dc6b437c02d2d38cf8b2dd18a5c16b1b971e9b20c48
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] fb6f9f4402c531f66cb8c440cad2d8510a4db6479299bf13683bf683fd67c8bc
[INFO] running `"docker" "start" "-a" "fb6f9f4402c531f66cb8c440cad2d8510a4db6479299bf13683bf683fd67c8bc"`
[INFO] [stderr]    Compiling anagram v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/anagram.rs:18:13
[INFO] [stderr]    |
[INFO] [stderr] 18 |         let mut words_list = anagrams.entry(word_key).or_insert(Vec::new());
[INFO] [stderr]    |             ----^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `"docker" "inspect" "fb6f9f4402c531f66cb8c440cad2d8510a4db6479299bf13683bf683fd67c8bc"`
[INFO] running `"docker" "rm" "-f" "fb6f9f4402c531f66cb8c440cad2d8510a4db6479299bf13683bf683fd67c8bc"`
[INFO] [stdout] fb6f9f4402c531f66cb8c440cad2d8510a4db6479299bf13683bf683fd67c8bc
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 97ed1ce1f8297ed4b21522347d842d33f870b8404ab9e49da8bdeb7421f4ec4f
[INFO] running `"docker" "start" "-a" "97ed1ce1f8297ed4b21522347d842d33f870b8404ab9e49da8bdeb7421f4ec4f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/anagram-bcec59e3a1196338
[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] [stderr]      Running /opt/rustwide/target/debug/deps/anagram-c585ef8e71a56ac1
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test tests::test_case_insensitive_anagrams ... ignored
[INFO] [stdout] test tests::test_detect_anagram ... ignored
[INFO] [stdout] test tests::test_does_not_confuse_different_duplicates ... ignored
[INFO] [stdout] test tests::test_does_not_detect_a_differently_cased_unicode_word_as_its_own_anagram ... ignored
[INFO] [stdout] test tests::test_does_not_detect_a_differently_cased_word_as_its_own_anagram ... ignored
[INFO] [stdout] test tests::test_does_not_detect_a_word_as_its_own_anagram ... ignored
[INFO] [stdout] test tests::test_eliminate_anagram_subsets ... ignored
[INFO] [stdout] test tests::test_misleading_unicode_anagrams ... ignored
[INFO] [stdout] test tests::test_multiple_anagrams ... ignored
[INFO] [stdout] test tests::test_unicode_anagrams ... ignored
[INFO] [stdout] test tests::test_detect_simple_anagram ... ok
[INFO] [stdout] test tests::test_no_matches ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 10 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests anagram
[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" "97ed1ce1f8297ed4b21522347d842d33f870b8404ab9e49da8bdeb7421f4ec4f"`
[INFO] running `"docker" "rm" "-f" "97ed1ce1f8297ed4b21522347d842d33f870b8404ab9e49da8bdeb7421f4ec4f"`
[INFO] [stdout] 97ed1ce1f8297ed4b21522347d842d33f870b8404ab9e49da8bdeb7421f4ec4f