Dec 05 11:47:35.159 INFO checking indexed-line-reader-0.2.0 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 11:47:35.159 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-0/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-alt check --frozen --all --all-targets" "-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 05 11:47:35.391 INFO [stdout] 0a31bc8ecc892789cefefa3c540762da61f3f3060e12715df67d70c29095ddd8
Dec 05 11:47:35.393 INFO running `"docker" "start" "-a" "0a31bc8ecc892789cefefa3c540762da61f3f3060e12715df67d70c29095ddd8"`
Dec 05 11:47:36.032 INFO [stderr] usermod: no changes
Dec 05 11:47:36.063 INFO [stderr]     Checking indexed-line-reader v0.2.0 (/source)
Dec 05 11:47:36.607 INFO [stderr] warning: variable does not need to be mutable
Dec 05 11:47:36.607 INFO [stderr]   --> src/lib.rs:89:50
Dec 05 11:47:36.607 INFO [stderr]    |
Dec 05 11:47:36.607 INFO [stderr] 89 |     pub fn compute<T: BufRead + Seek>(&mut self, mut reader: &mut T) -> Result<u64, Error> {
Dec 05 11:47:36.607 INFO [stderr]    |                                                  ----^^^^^^
Dec 05 11:47:36.607 INFO [stderr]    |                                                  |
Dec 05 11:47:36.607 INFO [stderr]    |                                                  help: remove this `mut`
Dec 05 11:47:36.607 INFO [stderr]    |
Dec 05 11:47:36.610 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 11:47:36.611 INFO [stderr] 
Dec 05 11:47:36.834 INFO [stderr] warning: variable does not need to be mutable
Dec 05 11:47:36.834 INFO [stderr]   --> src/lib.rs:89:50
Dec 05 11:47:36.834 INFO [stderr]    |
Dec 05 11:47:36.834 INFO [stderr] 89 |     pub fn compute<T: BufRead + Seek>(&mut self, mut reader: &mut T) -> Result<u64, Error> {
Dec 05 11:47:36.834 INFO [stderr]    |                                                  ----^^^^^^
Dec 05 11:47:36.834 INFO [stderr]    |                                                  |
Dec 05 11:47:36.834 INFO [stderr]    |                                                  help: remove this `mut`
Dec 05 11:47:36.834 INFO [stderr]    |
Dec 05 11:47:36.834 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 11:47:36.834 INFO [stderr] 
Dec 05 11:47:36.849 INFO [stderr] warning: variable does not need to be mutable
Dec 05 11:47:36.849 INFO [stderr]    --> src/lib.rs:296:13
Dec 05 11:47:36.849 INFO [stderr]     |
Dec 05 11:47:36.849 INFO [stderr] 296 |         let mut line_reader = &mut IndexedLineReader::new(BufReader::new(file_reader), 100);
Dec 05 11:47:36.849 INFO [stderr]     |             ----^^^^^^^^^^^
Dec 05 11:47:36.849 INFO [stderr]     |             |
Dec 05 11:47:36.849 INFO [stderr]     |             help: remove this `mut`
Dec 05 11:47:36.849 INFO [stderr] 
Dec 05 11:47:36.919 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
Dec 05 11:47:36.921 INFO [stderr] su: No module specific data is present
Dec 05 11:47:37.712 INFO running `"docker" "inspect" "0a31bc8ecc892789cefefa3c540762da61f3f3060e12715df67d70c29095ddd8"`
Dec 05 11:47:37.977 INFO running `"docker" "rm" "-f" "0a31bc8ecc892789cefefa3c540762da61f3f3060e12715df67d70c29095ddd8"`
Dec 05 11:47:38.259 INFO [stdout] 0a31bc8ecc892789cefefa3c540762da61f3f3060e12715df67d70c29095ddd8