Nov 18 14:23:16.386 INFO testing file_diff-1.0.0 against master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c for pr-55982
Nov 18 14:23:16.386 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-5/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-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"`
Nov 18 14:23:16.679 INFO [stdout] 7cbbe268b7e0a2dd4c671bff094ebd6bae7595bd806ead9690c4d5ed6d1cfda8
Nov 18 14:23:16.682 INFO running `"docker" "start" "-a" "7cbbe268b7e0a2dd4c671bff094ebd6bae7595bd806ead9690c4d5ed6d1cfda8"`
Nov 18 14:23:17.103 INFO [stderr] usermod: no changes
Nov 18 14:23:17.151 INFO [stderr]    Compiling file_diff v1.0.0 (/source)
Nov 18 14:23:17.611 INFO [stderr] warning: variable does not need to be mutable
Nov 18 14:23:17.611 INFO [stderr]   --> src/lib.rs:49:9
Nov 18 14:23:17.611 INFO [stderr]    |
Nov 18 14:23:17.611 INFO [stderr] 49 |     let mut buff1 : &mut [u8] = &mut [0; 1024];
Nov 18 14:23:17.611 INFO [stderr]    |         ----^^^^^
Nov 18 14:23:17.611 INFO [stderr]    |         |
Nov 18 14:23:17.611 INFO [stderr]    |         help: remove this `mut`
Nov 18 14:23:17.611 INFO [stderr]    |
Nov 18 14:23:17.611 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 18 14:23:17.611 INFO [stderr] 
Nov 18 14:23:17.611 INFO [stderr] warning: variable does not need to be mutable
Nov 18 14:23:17.611 INFO [stderr]   --> src/lib.rs:50:9
Nov 18 14:23:17.611 INFO [stderr]    |
Nov 18 14:23:17.611 INFO [stderr] 50 |     let mut buff2 : &mut [u8] = &mut [0; 1024];
Nov 18 14:23:17.611 INFO [stderr]    |         ----^^^^^
Nov 18 14:23:17.611 INFO [stderr]    |         |
Nov 18 14:23:17.611 INFO [stderr]    |         help: remove this `mut`
Nov 18 14:23:17.611 INFO [stderr] 
Nov 18 14:23:17.707 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
Nov 18 14:23:17.711 INFO [stderr] su: No module specific data is present
Nov 18 14:23:18.164 INFO running `"docker" "inspect" "7cbbe268b7e0a2dd4c671bff094ebd6bae7595bd806ead9690c4d5ed6d1cfda8"`
Nov 18 14:23:18.289 INFO running `"docker" "rm" "-f" "7cbbe268b7e0a2dd4c671bff094ebd6bae7595bd806ead9690c4d5ed6d1cfda8"`
Nov 18 14:23:18.451 INFO [stdout] 7cbbe268b7e0a2dd4c671bff094ebd6bae7595bd806ead9690c4d5ed6d1cfda8
Nov 18 14:23:18.452 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-5/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-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"`
Nov 18 14:23:18.746 INFO [stdout] cb666184be201edf09506663b6480a9ff6c0824806d53b46a5970c75e0052860
Nov 18 14:23:18.747 INFO running `"docker" "start" "-a" "cb666184be201edf09506663b6480a9ff6c0824806d53b46a5970c75e0052860"`
Nov 18 14:23:19.057 INFO [stderr] usermod: no changes
Nov 18 14:23:19.085 INFO [stderr]    Compiling file_diff v1.0.0 (/source)
Nov 18 14:23:19.568 INFO [stderr] warning: variable does not need to be mutable
Nov 18 14:23:19.568 INFO [stderr]   --> src/lib.rs:49:9
Nov 18 14:23:19.568 INFO [stderr]    |
Nov 18 14:23:19.568 INFO [stderr] 49 |     let mut buff1 : &mut [u8] = &mut [0; 1024];
Nov 18 14:23:19.568 INFO [stderr]    |         ----^^^^^
Nov 18 14:23:19.568 INFO [stderr]    |         |
Nov 18 14:23:19.568 INFO [stderr]    |         help: remove this `mut`
Nov 18 14:23:19.568 INFO [stderr]    |
Nov 18 14:23:19.568 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 18 14:23:19.568 INFO [stderr] 
Nov 18 14:23:19.568 INFO [stderr] warning: variable does not need to be mutable
Nov 18 14:23:19.568 INFO [stderr]   --> src/lib.rs:50:9
Nov 18 14:23:19.568 INFO [stderr]    |
Nov 18 14:23:19.568 INFO [stderr] 50 |     let mut buff2 : &mut [u8] = &mut [0; 1024];
Nov 18 14:23:19.568 INFO [stderr]    |         ----^^^^^
Nov 18 14:23:19.568 INFO [stderr]    |         |
Nov 18 14:23:19.568 INFO [stderr]    |         help: remove this `mut`
Nov 18 14:23:19.568 INFO [stderr] 
Nov 18 14:23:19.851 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
Nov 18 14:23:19.854 INFO [stderr] su: No module specific data is present
Nov 18 14:23:20.080 INFO running `"docker" "inspect" "cb666184be201edf09506663b6480a9ff6c0824806d53b46a5970c75e0052860"`
Nov 18 14:23:20.149 INFO running `"docker" "rm" "-f" "cb666184be201edf09506663b6480a9ff6c0824806d53b46a5970c75e0052860"`
Nov 18 14:23:20.256 INFO [stdout] cb666184be201edf09506663b6480a9ff6c0824806d53b46a5970c75e0052860
Nov 18 14:23:20.258 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-5/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-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"`
Nov 18 14:23:20.475 INFO [stdout] 3b1db55a836e51f445fef8e58be6c2a1f234ffbb33b26f70797f7dd3f7e2d228
Nov 18 14:23:20.481 INFO running `"docker" "start" "-a" "3b1db55a836e51f445fef8e58be6c2a1f234ffbb33b26f70797f7dd3f7e2d228"`
Nov 18 14:23:20.937 INFO [stderr] usermod: no changes
Nov 18 14:23:20.963 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Nov 18 14:23:20.964 INFO [stderr]      Running /target/debug/deps/file_diff-673b868265920c1a
Nov 18 14:23:20.965 INFO [stdout] 
Nov 18 14:23:20.966 INFO [stdout] running 5 tests
Nov 18 14:23:20.967 INFO [stdout] test tests::diff_different_text_files ... ok
Nov 18 14:23:20.967 INFO [stdout] test tests::diff_identical_binary_files ... ok
Nov 18 14:23:20.971 INFO [stdout] test tests::diff_the_same_binary_file ... ok
Nov 18 14:23:20.971 INFO [stdout] test tests::diff_the_same_text_file ... ok
Nov 18 14:23:20.971 INFO [stdout] test tests::diff_different_binary_files ... ok
Nov 18 14:23:20.971 INFO [stdout] 
Nov 18 14:23:20.971 INFO [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 18 14:23:20.971 INFO [stdout] 
Nov 18 14:23:20.972 INFO [stderr]    Doc-tests file_diff
Nov 18 14:23:21.679 INFO [stdout] 
Nov 18 14:23:21.679 INFO [stdout] running 2 tests
Nov 18 14:23:22.639 INFO [stdout] test src/lib.rs -  (line 14) ... ok
Nov 18 14:23:22.652 INFO [stdout] test src/lib.rs -  (line 33) ... ok
Nov 18 14:23:22.654 INFO [stdout] 
Nov 18 14:23:22.654 INFO [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 18 14:23:22.654 INFO [stdout] 
Nov 18 14:23:22.662 INFO [stderr] su: No module specific data is present
Nov 18 14:23:23.020 INFO running `"docker" "inspect" "3b1db55a836e51f445fef8e58be6c2a1f234ffbb33b26f70797f7dd3f7e2d228"`
Nov 18 14:23:23.125 INFO running `"docker" "rm" "-f" "3b1db55a836e51f445fef8e58be6c2a1f234ffbb33b26f70797f7dd3f7e2d228"`
Nov 18 14:23:23.276 INFO [stdout] 3b1db55a836e51f445fef8e58be6c2a1f234ffbb33b26f70797f7dd3f7e2d228