[INFO] updating cached repository Kerollmops/group-by
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Kerollmops/group-by
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Kerollmops/group-by" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/Kerollmops/group-by"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/Kerollmops/group-by'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Kerollmops/group-by" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/Kerollmops/group-by"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/Kerollmops/group-by'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cab857bae01463dbd0edb99b0e0d7f3624e6c6f5
[INFO] sha for GitHub repo Kerollmops/group-by: cab857bae01463dbd0edb99b0e0d7f3624e6c6f5
[INFO] validating manifest of Kerollmops/group-by 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 Kerollmops/group-by 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 Kerollmops/group-by
[INFO] finished frobbing Kerollmops/group-by
[INFO] frobbed toml for Kerollmops/group-by written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/Kerollmops/group-by/Cargo.toml
[INFO] started frobbing Kerollmops/group-by
[INFO] finished frobbing Kerollmops/group-by
[INFO] frobbed toml for Kerollmops/group-by written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/Kerollmops/group-by/Cargo.toml
[INFO] crate Kerollmops/group-by 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 Kerollmops/group-by against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-5/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/Kerollmops/group-by:/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] 2fc1cd383323d81dd9fece84e507d87e73c0d337cbc26b7594dd278b6c65044f
[INFO] running `"docker" "start" "-a" "2fc1cd383323d81dd9fece84e507d87e73c0d337cbc26b7594dd278b6c65044f"`
[INFO] [stderr]    Compiling group-by v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `"docker" "inspect" "2fc1cd383323d81dd9fece84e507d87e73c0d337cbc26b7594dd278b6c65044f"`
[INFO] running `"docker" "rm" "-f" "2fc1cd383323d81dd9fece84e507d87e73c0d337cbc26b7594dd278b6c65044f"`
[INFO] [stdout] 2fc1cd383323d81dd9fece84e507d87e73c0d337cbc26b7594dd278b6c65044f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-5/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/Kerollmops/group-by:/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] c0e64ebf956a05a332b71af8df396a81f5f820c8c7a96bb0427c1ad121e20830
[INFO] running `"docker" "start" "-a" "c0e64ebf956a05a332b71af8df396a81f5f820c8c7a96bb0427c1ad121e20830"`
[INFO] [stderr]    Compiling group-by v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `"docker" "inspect" "c0e64ebf956a05a332b71af8df396a81f5f820c8c7a96bb0427c1ad121e20830"`
[INFO] running `"docker" "rm" "-f" "c0e64ebf956a05a332b71af8df396a81f5f820c8c7a96bb0427c1ad121e20830"`
[INFO] [stdout] c0e64ebf956a05a332b71af8df396a81f5f820c8c7a96bb0427c1ad121e20830
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-5/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/Kerollmops/group-by:/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] f95782db830ebdf1568baf5968d4ce12cef228d69921808cae9c060e4bea83a6
[INFO] running `"docker" "start" "-a" "f95782db830ebdf1568baf5968d4ce12cef228d69921808cae9c060e4bea83a6"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/group_by-55b195d23fac0023
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test tests::back_empty_slice ... ok
[INFO] [stdout] test tests::back_one_little_group ... ok
[INFO] [stdout] test tests::back_fused_iterator ... ok
[INFO] [stdout] test tests::empty_slice ... ok
[INFO] [stdout] test tests::back_three_little_groups ... ok
[INFO] [stdout] test tests::double_ended_dont_cross ... ok
[INFO] [stdout] test tests::back_three_groups ... ok
[INFO] [stdout] test tests::fused_iterator ... ok
[INFO] [stdout] test tests::last_three_little_groups ... ok
[INFO] [stdout] test tests::last_overflow ... ok
[INFO] [stdout] test tests::one_big_group ... ok
[INFO] [stdout] test tests::overflow ... ok
[INFO] [stdout] test tests::last_three_groups ... ok
[INFO] [stdout] test tests::predicate_call_param_order ... ok
[INFO] [stdout] test tests::rev_predicate_call_param_order ... ok
[INFO] [stdout] test tests::one_little_group ... ok
[INFO] [stdout] test tests::three_groups ... ok
[INFO] [stdout] test tests::three_little_groups ... ok
[INFO] [stdout] test tests::two_equal_groups ... ok
[INFO] [stdout] test tests::two_little_equal_groups ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests group-by
[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" "f95782db830ebdf1568baf5968d4ce12cef228d69921808cae9c060e4bea83a6"`
[INFO] running `"docker" "rm" "-f" "f95782db830ebdf1568baf5968d4ce12cef228d69921808cae9c060e4bea83a6"`
[INFO] [stdout] f95782db830ebdf1568baf5968d4ce12cef228d69921808cae9c060e4bea83a6