Nov 18 08:53:48.565 INFO testing indexed-line-reader-0.2.0 against try#2e026d6e5d7621634147ad4c8074f1d964dbb1be for pr-55982
Nov 18 08:53:48.565 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-5/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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 08:53:48.962 INFO [stdout] 01fc7eca74bd9063433e483999eb5462c69b8327f97d7556e612e1c3fcaafcd8
Nov 18 08:53:48.969 INFO running `"docker" "start" "-a" "01fc7eca74bd9063433e483999eb5462c69b8327f97d7556e612e1c3fcaafcd8"`
Nov 18 08:53:49.833 INFO [stderr] usermod: no changes
Nov 18 08:53:49.895 INFO [stderr]    Compiling indexed-line-reader v0.2.0 (/source)
Nov 18 08:53:50.415 INFO [stderr] warning: variable does not need to be mutable
Nov 18 08:53:50.415 INFO [stderr]   --> src/lib.rs:89:50
Nov 18 08:53:50.415 INFO [stderr]    |
Nov 18 08:53:50.415 INFO [stderr] 89 |     pub fn compute<T: BufRead + Seek>(&mut self, mut reader: &mut T) -> Result<u64, Error> {
Nov 18 08:53:50.415 INFO [stderr]    |                                                  ----^^^^^^
Nov 18 08:53:50.415 INFO [stderr]    |                                                  |
Nov 18 08:53:50.415 INFO [stderr]    |                                                  help: remove this `mut`
Nov 18 08:53:50.415 INFO [stderr]    |
Nov 18 08:53:50.415 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 18 08:53:50.415 INFO [stderr] 
Nov 18 08:53:50.858 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.99s
Nov 18 08:53:50.861 INFO [stderr] su: No module specific data is present
Nov 18 08:53:51.297 INFO running `"docker" "inspect" "01fc7eca74bd9063433e483999eb5462c69b8327f97d7556e612e1c3fcaafcd8"`
Nov 18 08:53:51.449 INFO running `"docker" "rm" "-f" "01fc7eca74bd9063433e483999eb5462c69b8327f97d7556e612e1c3fcaafcd8"`
Nov 18 08:53:51.807 INFO [stdout] 01fc7eca74bd9063433e483999eb5462c69b8327f97d7556e612e1c3fcaafcd8
Nov 18 08:53:51.809 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-5/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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 08:53:52.081 INFO [stdout] cd99265188493f2d08f49d282ea9a0ee468474dc1cf842a67c9ea85310775c77
Nov 18 08:53:52.087 INFO running `"docker" "start" "-a" "cd99265188493f2d08f49d282ea9a0ee468474dc1cf842a67c9ea85310775c77"`
Nov 18 08:53:52.555 INFO [stderr] usermod: no changes
Nov 18 08:53:52.581 INFO [stderr]    Compiling indexed-line-reader v0.2.0 (/source)
Nov 18 08:53:53.082 INFO [stderr] warning: variable does not need to be mutable
Nov 18 08:53:53.082 INFO [stderr]   --> src/lib.rs:89:50
Nov 18 08:53:53.082 INFO [stderr]    |
Nov 18 08:53:53.082 INFO [stderr] 89 |     pub fn compute<T: BufRead + Seek>(&mut self, mut reader: &mut T) -> Result<u64, Error> {
Nov 18 08:53:53.082 INFO [stderr]    |                                                  ----^^^^^^
Nov 18 08:53:53.082 INFO [stderr]    |                                                  |
Nov 18 08:53:53.082 INFO [stderr]    |                                                  help: remove this `mut`
Nov 18 08:53:53.082 INFO [stderr]    |
Nov 18 08:53:53.082 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 18 08:53:53.082 INFO [stderr] 
Nov 18 08:53:53.099 INFO [stderr] warning: variable does not need to be mutable
Nov 18 08:53:53.099 INFO [stderr]    --> src/lib.rs:296:13
Nov 18 08:53:53.099 INFO [stderr]     |
Nov 18 08:53:53.099 INFO [stderr] 296 |         let mut line_reader = &mut IndexedLineReader::new(BufReader::new(file_reader), 100);
Nov 18 08:53:53.099 INFO [stderr]     |             ----^^^^^^^^^^^
Nov 18 08:53:53.099 INFO [stderr]     |             |
Nov 18 08:53:53.099 INFO [stderr]     |             help: remove this `mut`
Nov 18 08:53:53.099 INFO [stderr] 
Nov 18 08:53:53.836 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.26s
Nov 18 08:53:53.839 INFO [stderr] su: No module specific data is present
Nov 18 08:53:54.527 INFO running `"docker" "inspect" "cd99265188493f2d08f49d282ea9a0ee468474dc1cf842a67c9ea85310775c77"`
Nov 18 08:53:54.658 INFO running `"docker" "rm" "-f" "cd99265188493f2d08f49d282ea9a0ee468474dc1cf842a67c9ea85310775c77"`
Nov 18 08:53:54.835 INFO [stdout] cd99265188493f2d08f49d282ea9a0ee468474dc1cf842a67c9ea85310775c77