Dec 18 14:09:03.069 INFO checking marc-1.5.0 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 14:09:03.069 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/marc/1.5.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 14:09:03.240 INFO [stdout] 73ed163a1f52fc0961205e48d153bf12a7afbf1b0633840d7298284083e6605c
Dec 18 14:09:03.241 INFO running `"docker" "start" "-a" "73ed163a1f52fc0961205e48d153bf12a7afbf1b0633840d7298284083e6605c"`
Dec 18 14:09:04.137 INFO [stderr] warning: profile `doc` is deprecated and has no effect
Dec 18 14:09:04.179 INFO [stderr]     Checking marc v1.5.0 (/opt/crater/workdir)
Dec 18 14:09:04.956 INFO [stderr] warning: variable does not need to be mutable
Dec 18 14:09:04.956 INFO [stderr]    --> src/lib.rs:110:30
Dec 18 14:09:04.957 INFO [stderr]     |
Dec 18 14:09:04.957 INFO [stderr] 110 |     pub fn read<T: io::Read>(mut input: &mut T) -> Result<Option<Record<'static>>> {
Dec 18 14:09:04.957 INFO [stderr]     |                              ----^^^^^
Dec 18 14:09:04.957 INFO [stderr]     |                              |
Dec 18 14:09:04.957 INFO [stderr]     |                              help: remove this `mut`
Dec 18 14:09:04.957 INFO [stderr]     |
Dec 18 14:09:04.957 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 14:09:04.957 INFO [stderr] 
Dec 18 14:09:05.288 INFO [stderr] warning: variable does not need to be mutable
Dec 18 14:09:05.288 INFO [stderr]    --> src/lib.rs:110:30
Dec 18 14:09:05.288 INFO [stderr]     |
Dec 18 14:09:05.288 INFO [stderr] 110 |     pub fn read<T: io::Read>(mut input: &mut T) -> Result<Option<Record<'static>>> {
Dec 18 14:09:05.288 INFO [stderr]     |                              ----^^^^^
Dec 18 14:09:05.288 INFO [stderr]     |                              |
Dec 18 14:09:05.288 INFO [stderr]     |                              help: remove this `mut`
Dec 18 14:09:05.288 INFO [stderr]     |
Dec 18 14:09:05.288 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 14:09:05.288 INFO [stderr] 
Dec 18 14:09:05.537 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.41s
Dec 18 14:09:05.854 INFO running `"docker" "inspect" "73ed163a1f52fc0961205e48d153bf12a7afbf1b0633840d7298284083e6605c"`
Dec 18 14:09:06.119 INFO running `"docker" "rm" "-f" "73ed163a1f52fc0961205e48d153bf12a7afbf1b0633840d7298284083e6605c"`
Dec 18 14:09:06.213 INFO [stdout] 73ed163a1f52fc0961205e48d153bf12a7afbf1b0633840d7298284083e6605c