Dec 15 14:59:20.445 INFO testing file_diff-1.0.0 against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 15 14:59:20.445 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 15 14:59:20.626 INFO [stdout] f80a05403e5946a8476285a7e20280d783db1b9642dfefaee4720d994b67f2e4
Dec 15 14:59:20.627 INFO running `"docker" "start" "-a" "f80a05403e5946a8476285a7e20280d783db1b9642dfefaee4720d994b67f2e4"`
Dec 15 14:59:21.060 INFO [stderr] usermod: no changes
Dec 15 14:59:21.100 INFO [stderr]    Compiling file_diff v1.0.0 (/source)
Dec 15 14:59:21.558 INFO [stderr] warning: variable does not need to be mutable
Dec 15 14:59:21.558 INFO [stderr]   --> src/lib.rs:49:9
Dec 15 14:59:21.558 INFO [stderr]    |
Dec 15 14:59:21.558 INFO [stderr] 49 |     let mut buff1 : &mut [u8] = &mut [0; 1024];
Dec 15 14:59:21.558 INFO [stderr]    |         ----^^^^^
Dec 15 14:59:21.558 INFO [stderr]    |         |
Dec 15 14:59:21.558 INFO [stderr]    |         help: remove this `mut`
Dec 15 14:59:21.558 INFO [stderr]    |
Dec 15 14:59:21.558 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 15 14:59:21.558 INFO [stderr] 
Dec 15 14:59:21.558 INFO [stderr] warning: variable does not need to be mutable
Dec 15 14:59:21.559 INFO [stderr]   --> src/lib.rs:50:9
Dec 15 14:59:21.559 INFO [stderr]    |
Dec 15 14:59:21.559 INFO [stderr] 50 |     let mut buff2 : &mut [u8] = &mut [0; 1024];
Dec 15 14:59:21.559 INFO [stderr]    |         ----^^^^^
Dec 15 14:59:21.559 INFO [stderr]    |         |
Dec 15 14:59:21.559 INFO [stderr]    |         help: remove this `mut`
Dec 15 14:59:21.559 INFO [stderr] 
Dec 15 14:59:21.638 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
Dec 15 14:59:21.641 INFO [stderr] su: No module specific data is present
Dec 15 14:59:21.949 INFO running `"docker" "inspect" "f80a05403e5946a8476285a7e20280d783db1b9642dfefaee4720d994b67f2e4"`
Dec 15 14:59:22.096 INFO running `"docker" "rm" "-f" "f80a05403e5946a8476285a7e20280d783db1b9642dfefaee4720d994b67f2e4"`
Dec 15 14:59:22.307 INFO [stdout] f80a05403e5946a8476285a7e20280d783db1b9642dfefaee4720d994b67f2e4
Dec 15 14:59:22.313 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 15 14:59:22.680 INFO [stdout] 33d930b4b0371a83afc6cd696529d8da5f4220182be2ccc9bf39e607072cd91c
Dec 15 14:59:22.683 INFO running `"docker" "start" "-a" "33d930b4b0371a83afc6cd696529d8da5f4220182be2ccc9bf39e607072cd91c"`
Dec 15 14:59:23.182 INFO [stderr] usermod: no changes
Dec 15 14:59:23.211 INFO [stderr]    Compiling file_diff v1.0.0 (/source)
Dec 15 14:59:23.802 INFO [stderr] warning: variable does not need to be mutable
Dec 15 14:59:23.802 INFO [stderr]   --> src/lib.rs:49:9
Dec 15 14:59:23.802 INFO [stderr]    |
Dec 15 14:59:23.802 INFO [stderr] 49 |     let mut buff1 : &mut [u8] = &mut [0; 1024];
Dec 15 14:59:23.802 INFO [stderr]    |         ----^^^^^
Dec 15 14:59:23.802 INFO [stderr]    |         |
Dec 15 14:59:23.802 INFO [stderr]    |         help: remove this `mut`
Dec 15 14:59:23.802 INFO [stderr]    |
Dec 15 14:59:23.802 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 15 14:59:23.802 INFO [stderr] 
Dec 15 14:59:23.802 INFO [stderr] warning: variable does not need to be mutable
Dec 15 14:59:23.802 INFO [stderr]   --> src/lib.rs:50:9
Dec 15 14:59:23.802 INFO [stderr]    |
Dec 15 14:59:23.802 INFO [stderr] 50 |     let mut buff2 : &mut [u8] = &mut [0; 1024];
Dec 15 14:59:23.802 INFO [stderr]    |         ----^^^^^
Dec 15 14:59:23.802 INFO [stderr]    |         |
Dec 15 14:59:23.802 INFO [stderr]    |         help: remove this `mut`
Dec 15 14:59:23.802 INFO [stderr] 
Dec 15 14:59:24.133 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.93s
Dec 15 14:59:24.137 INFO [stderr] su: No module specific data is present
Dec 15 14:59:24.476 INFO running `"docker" "inspect" "33d930b4b0371a83afc6cd696529d8da5f4220182be2ccc9bf39e607072cd91c"`
Dec 15 14:59:24.533 INFO running `"docker" "rm" "-f" "33d930b4b0371a83afc6cd696529d8da5f4220182be2ccc9bf39e607072cd91c"`
Dec 15 14:59:24.616 INFO [stdout] 33d930b4b0371a83afc6cd696529d8da5f4220182be2ccc9bf39e607072cd91c
Dec 15 14:59:24.618 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 15 14:59:24.789 INFO [stdout] a99fefb5326c351b4d500d98a7fd23a70607d5a5173250938f29635106e73742
Dec 15 14:59:24.793 INFO running `"docker" "start" "-a" "a99fefb5326c351b4d500d98a7fd23a70607d5a5173250938f29635106e73742"`
Dec 15 14:59:25.424 INFO [stderr] usermod: no changes
Dec 15 14:59:25.489 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Dec 15 14:59:25.489 INFO [stderr]      Running /target/debug/deps/file_diff-f73fddd809ee68db
Dec 15 14:59:25.489 INFO [stderr]    Doc-tests file_diff
Dec 15 14:59:25.489 INFO [stdout] 
Dec 15 14:59:25.489 INFO [stdout] running 5 tests
Dec 15 14:59:25.489 INFO [stdout] test tests::diff_different_binary_files ... ok
Dec 15 14:59:25.489 INFO [stdout] test tests::diff_identical_binary_files ... ok
Dec 15 14:59:25.489 INFO [stdout] test tests::diff_different_text_files ... ok
Dec 15 14:59:25.489 INFO [stdout] test tests::diff_the_same_text_file ... ok
Dec 15 14:59:25.489 INFO [stdout] test tests::diff_the_same_binary_file ... ok
Dec 15 14:59:25.489 INFO [stdout] 
Dec 15 14:59:25.489 INFO [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 15 14:59:25.489 INFO [stdout] 
Dec 15 14:59:26.381 INFO [stdout] 
Dec 15 14:59:26.381 INFO [stdout] running 2 tests
Dec 15 14:59:27.567 INFO [stdout] test src/lib.rs -  (line 33) ... ok
Dec 15 14:59:27.639 INFO [stdout] test src/lib.rs -  (line 14) ... ok
Dec 15 14:59:27.639 INFO [stdout] 
Dec 15 14:59:27.639 INFO [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 15 14:59:27.639 INFO [stdout] 
Dec 15 14:59:27.649 INFO [stderr] su: No module specific data is present
Dec 15 14:59:27.954 INFO running `"docker" "inspect" "a99fefb5326c351b4d500d98a7fd23a70607d5a5173250938f29635106e73742"`
Dec 15 14:59:28.079 INFO running `"docker" "rm" "-f" "a99fefb5326c351b4d500d98a7fd23a70607d5a5173250938f29635106e73742"`
Dec 15 14:59:28.175 INFO [stdout] a99fefb5326c351b4d500d98a7fd23a70607d5a5173250938f29635106e73742