Dec 07 16:51:40.099 INFO testing file_diff-1.0.0 against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 07 16:51:40.099 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-3/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +906deae0790bd18681b937fe9a141a3c26cf1855-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 07 16:51:40.749 INFO [stdout] 959329aa42c06412aae836f0674d6380f8f210b469c9787df27353438bb39006
Dec 07 16:51:40.751 INFO running `"docker" "start" "-a" "959329aa42c06412aae836f0674d6380f8f210b469c9787df27353438bb39006"`
Dec 07 16:51:41.535 INFO [stderr] usermod: no changes
Dec 07 16:51:41.563 INFO [stderr]    Compiling file_diff v1.0.0 (/source)
Dec 07 16:51:42.017 INFO [stderr] warning: variable does not need to be mutable
Dec 07 16:51:42.017 INFO [stderr]   --> src/lib.rs:49:9
Dec 07 16:51:42.017 INFO [stderr]    |
Dec 07 16:51:42.017 INFO [stderr] 49 |     let mut buff1 : &mut [u8] = &mut [0; 1024];
Dec 07 16:51:42.017 INFO [stderr]    |         ----^^^^^
Dec 07 16:51:42.017 INFO [stderr]    |         |
Dec 07 16:51:42.017 INFO [stderr]    |         help: remove this `mut`
Dec 07 16:51:42.017 INFO [stderr]    |
Dec 07 16:51:42.017 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 07 16:51:42.017 INFO [stderr] 
Dec 07 16:51:42.017 INFO [stderr] warning: variable does not need to be mutable
Dec 07 16:51:42.017 INFO [stderr]   --> src/lib.rs:50:9
Dec 07 16:51:42.017 INFO [stderr]    |
Dec 07 16:51:42.017 INFO [stderr] 50 |     let mut buff2 : &mut [u8] = &mut [0; 1024];
Dec 07 16:51:42.018 INFO [stderr]    |         ----^^^^^
Dec 07 16:51:42.018 INFO [stderr]    |         |
Dec 07 16:51:42.018 INFO [stderr]    |         help: remove this `mut`
Dec 07 16:51:42.018 INFO [stderr] 
Dec 07 16:51:42.074 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
Dec 07 16:51:42.075 INFO [stderr] su: No module specific data is present
Dec 07 16:51:42.394 INFO running `"docker" "inspect" "959329aa42c06412aae836f0674d6380f8f210b469c9787df27353438bb39006"`
Dec 07 16:51:42.518 INFO running `"docker" "rm" "-f" "959329aa42c06412aae836f0674d6380f8f210b469c9787df27353438bb39006"`
Dec 07 16:51:42.584 INFO [stdout] 959329aa42c06412aae836f0674d6380f8f210b469c9787df27353438bb39006
Dec 07 16:51:42.586 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-3/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +906deae0790bd18681b937fe9a141a3c26cf1855-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 07 16:51:42.782 INFO [stdout] 5910e723a8ef154ebae4375b238a155e8b67e4ee17010ce9e9ea1464ea577047
Dec 07 16:51:42.785 INFO running `"docker" "start" "-a" "5910e723a8ef154ebae4375b238a155e8b67e4ee17010ce9e9ea1464ea577047"`
Dec 07 16:51:43.448 INFO [stderr] usermod: no changes
Dec 07 16:51:43.520 INFO [stderr]    Compiling file_diff v1.0.0 (/source)
Dec 07 16:51:44.188 INFO [stderr] warning: variable does not need to be mutable
Dec 07 16:51:44.188 INFO [stderr]   --> src/lib.rs:49:9
Dec 07 16:51:44.188 INFO [stderr]    |
Dec 07 16:51:44.188 INFO [stderr] 49 |     let mut buff1 : &mut [u8] = &mut [0; 1024];
Dec 07 16:51:44.188 INFO [stderr]    |         ----^^^^^
Dec 07 16:51:44.188 INFO [stderr]    |         |
Dec 07 16:51:44.188 INFO [stderr]    |         help: remove this `mut`
Dec 07 16:51:44.188 INFO [stderr]    |
Dec 07 16:51:44.188 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 07 16:51:44.188 INFO [stderr] 
Dec 07 16:51:44.188 INFO [stderr] warning: variable does not need to be mutable
Dec 07 16:51:44.188 INFO [stderr]   --> src/lib.rs:50:9
Dec 07 16:51:44.188 INFO [stderr]    |
Dec 07 16:51:44.188 INFO [stderr] 50 |     let mut buff2 : &mut [u8] = &mut [0; 1024];
Dec 07 16:51:44.188 INFO [stderr]    |         ----^^^^^
Dec 07 16:51:44.188 INFO [stderr]    |         |
Dec 07 16:51:44.188 INFO [stderr]    |         help: remove this `mut`
Dec 07 16:51:44.188 INFO [stderr] 
Dec 07 16:51:44.558 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.07s
Dec 07 16:51:44.560 INFO [stderr] su: No module specific data is present
Dec 07 16:51:44.964 INFO running `"docker" "inspect" "5910e723a8ef154ebae4375b238a155e8b67e4ee17010ce9e9ea1464ea577047"`
Dec 07 16:51:45.082 INFO running `"docker" "rm" "-f" "5910e723a8ef154ebae4375b238a155e8b67e4ee17010ce9e9ea1464ea577047"`
Dec 07 16:51:45.212 INFO [stdout] 5910e723a8ef154ebae4375b238a155e8b67e4ee17010ce9e9ea1464ea577047
Dec 07 16:51:45.213 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-3/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +906deae0790bd18681b937fe9a141a3c26cf1855-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 07 16:51:45.400 INFO [stdout] 7e8b7a81bbcd8c9fb520764f068b4086492028d73cfc4cd78482ba45e6edc4f3
Dec 07 16:51:45.405 INFO running `"docker" "start" "-a" "7e8b7a81bbcd8c9fb520764f068b4086492028d73cfc4cd78482ba45e6edc4f3"`
Dec 07 16:51:45.940 INFO [stderr] usermod: no changes
Dec 07 16:51:45.964 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Dec 07 16:51:45.969 INFO [stderr]      Running /target/debug/deps/file_diff-73ed9f78c48eaf53
Dec 07 16:51:45.975 INFO [stdout] 
Dec 07 16:51:45.975 INFO [stdout] running 5 tests
Dec 07 16:51:45.992 INFO [stdout] test tests::diff_identical_binary_files ... ok
Dec 07 16:51:45.992 INFO [stdout] test tests::diff_the_same_binary_file ... ok
Dec 07 16:51:45.996 INFO [stdout] test tests::diff_different_binary_files ... ok
Dec 07 16:51:45.996 INFO [stderr]    Doc-tests file_diff
Dec 07 16:51:45.996 INFO [stdout] test tests::diff_different_text_files ... ok
Dec 07 16:51:45.996 INFO [stdout] test tests::diff_the_same_text_file ... ok
Dec 07 16:51:45.996 INFO [stdout] 
Dec 07 16:51:45.996 INFO [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 07 16:51:45.996 INFO [stdout] 
Dec 07 16:51:46.847 INFO [stdout] 
Dec 07 16:51:46.847 INFO [stdout] running 2 tests
Dec 07 16:51:47.894 INFO [stdout] test src/lib.rs -  (line 33) ... ok
Dec 07 16:51:47.916 INFO [stdout] test src/lib.rs -  (line 14) ... ok
Dec 07 16:51:47.916 INFO [stdout] 
Dec 07 16:51:47.916 INFO [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 07 16:51:47.916 INFO [stdout] 
Dec 07 16:51:47.926 INFO [stderr] su: No module specific data is present
Dec 07 16:51:48.258 INFO running `"docker" "inspect" "7e8b7a81bbcd8c9fb520764f068b4086492028d73cfc4cd78482ba45e6edc4f3"`
Dec 07 16:51:48.336 INFO running `"docker" "rm" "-f" "7e8b7a81bbcd8c9fb520764f068b4086492028d73cfc4cd78482ba45e6edc4f3"`
Dec 07 16:51:48.490 INFO [stdout] 7e8b7a81bbcd8c9fb520764f068b4086492028d73cfc4cd78482ba45e6edc4f3