Dec 07 10:16:45.944 INFO testing indexed-line-reader-0.2.0 against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 07 10:16:45.944 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-7/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 10:16:46.192 INFO [stdout] 4782359bed47a391cc3d00790f3e7a79fda910420f4f8e33436cd29a0a0b4d0c
Dec 07 10:16:46.194 INFO running `"docker" "start" "-a" "4782359bed47a391cc3d00790f3e7a79fda910420f4f8e33436cd29a0a0b4d0c"`
Dec 07 10:16:46.863 INFO [stderr] usermod: no changes
Dec 07 10:16:46.901 INFO [stderr]    Compiling indexed-line-reader v0.2.0 (/source)
Dec 07 10:16:47.476 INFO [stderr] warning: variable does not need to be mutable
Dec 07 10:16:47.476 INFO [stderr]   --> src/lib.rs:89:50
Dec 07 10:16:47.476 INFO [stderr]    |
Dec 07 10:16:47.476 INFO [stderr] 89 |     pub fn compute<T: BufRead + Seek>(&mut self, mut reader: &mut T) -> Result<u64, Error> {
Dec 07 10:16:47.476 INFO [stderr]    |                                                  ----^^^^^^
Dec 07 10:16:47.476 INFO [stderr]    |                                                  |
Dec 07 10:16:47.476 INFO [stderr]    |                                                  help: remove this `mut`
Dec 07 10:16:47.476 INFO [stderr]    |
Dec 07 10:16:47.476 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 07 10:16:47.476 INFO [stderr] 
Dec 07 10:16:47.716 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
Dec 07 10:16:47.721 INFO [stderr] su: No module specific data is present
Dec 07 10:16:48.114 INFO running `"docker" "inspect" "4782359bed47a391cc3d00790f3e7a79fda910420f4f8e33436cd29a0a0b4d0c"`
Dec 07 10:16:48.337 INFO running `"docker" "rm" "-f" "4782359bed47a391cc3d00790f3e7a79fda910420f4f8e33436cd29a0a0b4d0c"`
Dec 07 10:16:48.517 INFO [stdout] 4782359bed47a391cc3d00790f3e7a79fda910420f4f8e33436cd29a0a0b4d0c
Dec 07 10:16:48.522 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-7/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 10:16:48.695 INFO [stdout] ddde62862d5d04de86f9a6d3d11b1cb8a60a4955b0fc90938a2b6973c136f3cd
Dec 07 10:16:48.697 INFO running `"docker" "start" "-a" "ddde62862d5d04de86f9a6d3d11b1cb8a60a4955b0fc90938a2b6973c136f3cd"`
Dec 07 10:16:49.571 INFO [stderr] usermod: no changes
Dec 07 10:16:49.617 INFO [stderr]    Compiling indexed-line-reader v0.2.0 (/source)
Dec 07 10:16:50.483 INFO [stderr] warning: variable does not need to be mutable
Dec 07 10:16:50.483 INFO [stderr]   --> src/lib.rs:89:50
Dec 07 10:16:50.483 INFO [stderr]    |
Dec 07 10:16:50.483 INFO [stderr] 89 |     pub fn compute<T: BufRead + Seek>(&mut self, mut reader: &mut T) -> Result<u64, Error> {
Dec 07 10:16:50.483 INFO [stderr]    |                                                  ----^^^^^^
Dec 07 10:16:50.483 INFO [stderr]    |                                                  |
Dec 07 10:16:50.483 INFO [stderr]    |                                                  help: remove this `mut`
Dec 07 10:16:50.483 INFO [stderr]    |
Dec 07 10:16:50.483 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 07 10:16:50.483 INFO [stderr] 
Dec 07 10:16:50.504 INFO [stderr] warning: variable does not need to be mutable
Dec 07 10:16:50.504 INFO [stderr]    --> src/lib.rs:296:13
Dec 07 10:16:50.504 INFO [stderr]     |
Dec 07 10:16:50.504 INFO [stderr] 296 |         let mut line_reader = &mut IndexedLineReader::new(BufReader::new(file_reader), 100);
Dec 07 10:16:50.504 INFO [stderr]     |             ----^^^^^^^^^^^
Dec 07 10:16:50.504 INFO [stderr]     |             |
Dec 07 10:16:50.504 INFO [stderr]     |             help: remove this `mut`
Dec 07 10:16:50.504 INFO [stderr] 
Dec 07 10:16:51.448 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.85s
Dec 07 10:16:51.451 INFO [stderr] su: No module specific data is present
Dec 07 10:16:51.956 INFO running `"docker" "inspect" "ddde62862d5d04de86f9a6d3d11b1cb8a60a4955b0fc90938a2b6973c136f3cd"`
Dec 07 10:16:52.107 INFO running `"docker" "rm" "-f" "ddde62862d5d04de86f9a6d3d11b1cb8a60a4955b0fc90938a2b6973c136f3cd"`
Dec 07 10:16:52.267 INFO [stdout] ddde62862d5d04de86f9a6d3d11b1cb8a60a4955b0fc90938a2b6973c136f3cd