Dec 07 10:16:45.535 INFO testing indexed-line-reader-0.2.0 against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 07 10:16:45.535 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-1/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 10:16:45.901 INFO [stdout] d1fd27a55a3d486dd016b7dbf1a46e1a8b787456144712e85314802e51e1e287
Dec 07 10:16:45.906 INFO running `"docker" "start" "-a" "d1fd27a55a3d486dd016b7dbf1a46e1a8b787456144712e85314802e51e1e287"`
Dec 07 10:16:46.636 INFO [stderr] usermod: no changes
Dec 07 10:16:46.684 INFO [stderr]    Compiling indexed-line-reader v0.2.0 (/source)
Dec 07 10:16:47.188 INFO [stderr] warning: variable does not need to be mutable
Dec 07 10:16:47.188 INFO [stderr]   --> src/lib.rs:89:50
Dec 07 10:16:47.188 INFO [stderr]    |
Dec 07 10:16:47.188 INFO [stderr] 89 |     pub fn compute<T: BufRead + Seek>(&mut self, mut reader: &mut T) -> Result<u64, Error> {
Dec 07 10:16:47.188 INFO [stderr]    |                                                  ----^^^^^^
Dec 07 10:16:47.188 INFO [stderr]    |                                                  |
Dec 07 10:16:47.188 INFO [stderr]    |                                                  help: remove this `mut`
Dec 07 10:16:47.188 INFO [stderr]    |
Dec 07 10:16:47.196 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 07 10:16:47.196 INFO [stderr] 
Dec 07 10:16:47.583 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
Dec 07 10:16:47.583 INFO [stderr] su: No module specific data is present
Dec 07 10:16:47.922 INFO running `"docker" "inspect" "d1fd27a55a3d486dd016b7dbf1a46e1a8b787456144712e85314802e51e1e287"`
Dec 07 10:16:48.254 INFO running `"docker" "rm" "-f" "d1fd27a55a3d486dd016b7dbf1a46e1a8b787456144712e85314802e51e1e287"`
Dec 07 10:16:48.533 INFO [stdout] d1fd27a55a3d486dd016b7dbf1a46e1a8b787456144712e85314802e51e1e287
Dec 07 10:16:48.535 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-1/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 10:16:48.791 INFO [stdout] 924114789d20ad70337320782ec313d19fde4eafd46c3416c1129595b9000700
Dec 07 10:16:48.795 INFO running `"docker" "start" "-a" "924114789d20ad70337320782ec313d19fde4eafd46c3416c1129595b9000700"`
Dec 07 10:16:50.287 INFO [stderr] usermod: no changes
Dec 07 10:16:50.340 INFO [stderr]    Compiling indexed-line-reader v0.2.0 (/source)
Dec 07 10:16:51.038 INFO [stderr] warning: variable does not need to be mutable
Dec 07 10:16:51.038 INFO [stderr]   --> src/lib.rs:89:50
Dec 07 10:16:51.038 INFO [stderr]    |
Dec 07 10:16:51.038 INFO [stderr] 89 |     pub fn compute<T: BufRead + Seek>(&mut self, mut reader: &mut T) -> Result<u64, Error> {
Dec 07 10:16:51.039 INFO [stderr]    |                                                  ----^^^^^^
Dec 07 10:16:51.039 INFO [stderr]    |                                                  |
Dec 07 10:16:51.039 INFO [stderr]    |                                                  help: remove this `mut`
Dec 07 10:16:51.039 INFO [stderr]    |
Dec 07 10:16:51.039 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 07 10:16:51.039 INFO [stderr] 
Dec 07 10:16:51.056 INFO [stderr] warning: variable does not need to be mutable
Dec 07 10:16:51.056 INFO [stderr]    --> src/lib.rs:296:13
Dec 07 10:16:51.056 INFO [stderr]     |
Dec 07 10:16:51.056 INFO [stderr] 296 |         let mut line_reader = &mut IndexedLineReader::new(BufReader::new(file_reader), 100);
Dec 07 10:16:51.056 INFO [stderr]     |             ----^^^^^^^^^^^
Dec 07 10:16:51.056 INFO [stderr]     |             |
Dec 07 10:16:51.056 INFO [stderr]     |             help: remove this `mut`
Dec 07 10:16:51.056 INFO [stderr] 
Dec 07 10:16:51.816 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.50s
Dec 07 10:16:51.816 INFO [stderr] su: No module specific data is present
Dec 07 10:16:52.140 INFO running `"docker" "inspect" "924114789d20ad70337320782ec313d19fde4eafd46c3416c1129595b9000700"`
Dec 07 10:16:52.278 INFO running `"docker" "rm" "-f" "924114789d20ad70337320782ec313d19fde4eafd46c3416c1129595b9000700"`
Dec 07 10:16:52.422 INFO [stdout] 924114789d20ad70337320782ec313d19fde4eafd46c3416c1129595b9000700