Dec 15 07:54:27.050 INFO testing indexed-line-reader-0.2.0 against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 15 07:54:27.050 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 07:54:27.316 INFO [stdout] b6c0e476ce2daa5a402e04e2a3a8d454311f41c8cbf63726ea0a71075cf2b384
Dec 15 07:54:27.319 INFO running `"docker" "start" "-a" "b6c0e476ce2daa5a402e04e2a3a8d454311f41c8cbf63726ea0a71075cf2b384"`
Dec 15 07:54:28.006 INFO [stderr] usermod: no changes
Dec 15 07:54:28.040 INFO [stderr]    Compiling indexed-line-reader v0.2.0 (/source)
Dec 15 07:54:28.582 INFO [stderr] warning: variable does not need to be mutable
Dec 15 07:54:28.582 INFO [stderr]   --> src/lib.rs:89:50
Dec 15 07:54:28.582 INFO [stderr]    |
Dec 15 07:54:28.582 INFO [stderr] 89 |     pub fn compute<T: BufRead + Seek>(&mut self, mut reader: &mut T) -> Result<u64, Error> {
Dec 15 07:54:28.582 INFO [stderr]    |                                                  ----^^^^^^
Dec 15 07:54:28.582 INFO [stderr]    |                                                  |
Dec 15 07:54:28.582 INFO [stderr]    |                                                  help: remove this `mut`
Dec 15 07:54:28.582 INFO [stderr]    |
Dec 15 07:54:28.582 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 15 07:54:28.582 INFO [stderr] 
Dec 15 07:54:28.887 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
Dec 15 07:54:28.887 INFO [stderr] su: No module specific data is present
Dec 15 07:54:29.483 INFO running `"docker" "inspect" "b6c0e476ce2daa5a402e04e2a3a8d454311f41c8cbf63726ea0a71075cf2b384"`
Dec 15 07:54:29.792 INFO running `"docker" "rm" "-f" "b6c0e476ce2daa5a402e04e2a3a8d454311f41c8cbf63726ea0a71075cf2b384"`
Dec 15 07:54:30.013 INFO [stdout] b6c0e476ce2daa5a402e04e2a3a8d454311f41c8cbf63726ea0a71075cf2b384
Dec 15 07:54:30.015 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 07:54:30.356 INFO [stdout] ba09bad302b3fa55ee384f0939694bd1fb93f6aa4b28242aa1435a24674c7887
Dec 15 07:54:30.359 INFO running `"docker" "start" "-a" "ba09bad302b3fa55ee384f0939694bd1fb93f6aa4b28242aa1435a24674c7887"`
Dec 15 07:54:31.709 INFO [stderr] usermod: no changes
Dec 15 07:54:31.717 INFO [stderr]    Compiling indexed-line-reader v0.2.0 (/source)
Dec 15 07:54:32.493 INFO [stderr] warning: variable does not need to be mutable
Dec 15 07:54:32.493 INFO [stderr]   --> src/lib.rs:89:50
Dec 15 07:54:32.493 INFO [stderr]    |
Dec 15 07:54:32.493 INFO [stderr] 89 |     pub fn compute<T: BufRead + Seek>(&mut self, mut reader: &mut T) -> Result<u64, Error> {
Dec 15 07:54:32.493 INFO [stderr]    |                                                  ----^^^^^^
Dec 15 07:54:32.493 INFO [stderr]    |                                                  |
Dec 15 07:54:32.493 INFO [stderr]    |                                                  help: remove this `mut`
Dec 15 07:54:32.493 INFO [stderr]    |
Dec 15 07:54:32.493 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 15 07:54:32.493 INFO [stderr] 
Dec 15 07:54:32.524 INFO [stderr] warning: variable does not need to be mutable
Dec 15 07:54:32.524 INFO [stderr]    --> src/lib.rs:296:13
Dec 15 07:54:32.524 INFO [stderr]     |
Dec 15 07:54:32.524 INFO [stderr] 296 |         let mut line_reader = &mut IndexedLineReader::new(BufReader::new(file_reader), 100);
Dec 15 07:54:32.524 INFO [stderr]     |             ----^^^^^^^^^^^
Dec 15 07:54:32.524 INFO [stderr]     |             |
Dec 15 07:54:32.524 INFO [stderr]     |             help: remove this `mut`
Dec 15 07:54:32.524 INFO [stderr] 
Dec 15 07:54:33.145 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.45s
Dec 15 07:54:33.146 INFO [stderr] su: No module specific data is present
Dec 15 07:54:33.443 INFO running `"docker" "inspect" "ba09bad302b3fa55ee384f0939694bd1fb93f6aa4b28242aa1435a24674c7887"`
Dec 15 07:54:33.569 INFO running `"docker" "rm" "-f" "ba09bad302b3fa55ee384f0939694bd1fb93f6aa4b28242aa1435a24674c7887"`
Dec 15 07:54:33.678 INFO [stdout] ba09bad302b3fa55ee384f0939694bd1fb93f6aa4b28242aa1435a24674c7887