Nov 18 08:53:49.031 INFO testing indexed-line-reader-0.2.0 against master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c for pr-55982
Nov 18 08:53:49.032 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-6/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 08:53:49.500 INFO [stdout] 72d2e9b85533d3a53c2a9a65d7d016a39399f72293bcab3804370fc3dd3e346a
Nov 18 08:53:49.501 INFO running `"docker" "start" "-a" "72d2e9b85533d3a53c2a9a65d7d016a39399f72293bcab3804370fc3dd3e346a"`
Nov 18 08:53:50.306 INFO [stderr] usermod: no changes
Nov 18 08:53:50.380 INFO [stderr]    Compiling indexed-line-reader v0.2.0 (/source)
Nov 18 08:53:51.031 INFO [stderr] warning: variable does not need to be mutable
Nov 18 08:53:51.031 INFO [stderr]   --> src/lib.rs:89:50
Nov 18 08:53:51.031 INFO [stderr]    |
Nov 18 08:53:51.031 INFO [stderr] 89 |     pub fn compute<T: BufRead + Seek>(&mut self, mut reader: &mut T) -> Result<u64, Error> {
Nov 18 08:53:51.031 INFO [stderr]    |                                                  ----^^^^^^
Nov 18 08:53:51.031 INFO [stderr]    |                                                  |
Nov 18 08:53:51.031 INFO [stderr]    |                                                  help: remove this `mut`
Nov 18 08:53:51.031 INFO [stderr]    |
Nov 18 08:53:51.031 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 18 08:53:51.031 INFO [stderr] 
Nov 18 08:53:51.376 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.04s
Nov 18 08:53:51.376 INFO [stderr] su: No module specific data is present
Nov 18 08:53:51.933 INFO running `"docker" "inspect" "72d2e9b85533d3a53c2a9a65d7d016a39399f72293bcab3804370fc3dd3e346a"`
Nov 18 08:53:52.045 INFO running `"docker" "rm" "-f" "72d2e9b85533d3a53c2a9a65d7d016a39399f72293bcab3804370fc3dd3e346a"`
Nov 18 08:53:52.169 INFO [stdout] 72d2e9b85533d3a53c2a9a65d7d016a39399f72293bcab3804370fc3dd3e346a
Nov 18 08:53:52.172 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-6/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 08:53:52.359 INFO [stdout] 2b5b3efa965517bdaf76d782001b8517750125b0d28e25ea01002546df3c45a8
Nov 18 08:53:52.364 INFO running `"docker" "start" "-a" "2b5b3efa965517bdaf76d782001b8517750125b0d28e25ea01002546df3c45a8"`
Nov 18 08:53:52.910 INFO [stderr] usermod: no changes
Nov 18 08:53:52.936 INFO [stderr]    Compiling indexed-line-reader v0.2.0 (/source)
Nov 18 08:53:53.482 INFO [stderr] warning: variable does not need to be mutable
Nov 18 08:53:53.482 INFO [stderr]   --> src/lib.rs:89:50
Nov 18 08:53:53.482 INFO [stderr]    |
Nov 18 08:53:53.482 INFO [stderr] 89 |     pub fn compute<T: BufRead + Seek>(&mut self, mut reader: &mut T) -> Result<u64, Error> {
Nov 18 08:53:53.482 INFO [stderr]    |                                                  ----^^^^^^
Nov 18 08:53:53.482 INFO [stderr]    |                                                  |
Nov 18 08:53:53.482 INFO [stderr]    |                                                  help: remove this `mut`
Nov 18 08:53:53.482 INFO [stderr]    |
Nov 18 08:53:53.482 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 18 08:53:53.482 INFO [stderr] 
Nov 18 08:53:53.503 INFO [stderr] warning: variable does not need to be mutable
Nov 18 08:53:53.503 INFO [stderr]    --> src/lib.rs:296:13
Nov 18 08:53:53.503 INFO [stderr]     |
Nov 18 08:53:53.503 INFO [stderr] 296 |         let mut line_reader = &mut IndexedLineReader::new(BufReader::new(file_reader), 100);
Nov 18 08:53:53.503 INFO [stderr]     |             ----^^^^^^^^^^^
Nov 18 08:53:53.503 INFO [stderr]     |             |
Nov 18 08:53:53.503 INFO [stderr]     |             help: remove this `mut`
Nov 18 08:53:53.503 INFO [stderr] 
Nov 18 08:53:54.418 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.49s
Nov 18 08:53:54.421 INFO [stderr] su: No module specific data is present
Nov 18 08:53:54.797 INFO running `"docker" "inspect" "2b5b3efa965517bdaf76d782001b8517750125b0d28e25ea01002546df3c45a8"`
Nov 18 08:53:54.924 INFO running `"docker" "rm" "-f" "2b5b3efa965517bdaf76d782001b8517750125b0d28e25ea01002546df3c45a8"`
Nov 18 08:53:55.064 INFO [stdout] 2b5b3efa965517bdaf76d782001b8517750125b0d28e25ea01002546df3c45a8