Dec 18 13:39:51.326 INFO checking nff-0.1.2 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 13:39:51.326 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/nff/0.1.2:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 13:39:51.597 INFO [stdout] 8ccaa2ee4b6ec954e1dcfcb77bdc969ec80ae936be948d92f7e93d152fdca014
Dec 18 13:39:51.598 INFO running `"docker" "start" "-a" "8ccaa2ee4b6ec954e1dcfcb77bdc969ec80ae936be948d92f7e93d152fdca014"`
Dec 18 13:39:52.629 INFO [stderr]     Checking hashbrown v0.1.7
Dec 18 13:39:53.553 INFO [stderr]     Checking nff v0.1.2 (/opt/crater/workdir)
Dec 18 13:39:53.976 INFO [stderr] warning: variable does not need to be mutable
Dec 18 13:39:53.976 INFO [stderr]   --> src/lib.rs:61:17
Dec 18 13:39:53.976 INFO [stderr]    |
Dec 18 13:39:53.976 INFO [stderr] 61 |             let mut rhs = side.next().expect("Missing right hand side").trim().chars();
Dec 18 13:39:53.976 INFO [stderr]    |                 ----^^^
Dec 18 13:39:53.976 INFO [stderr]    |                 |
Dec 18 13:39:53.976 INFO [stderr]    |                 help: remove this `mut`
Dec 18 13:39:53.976 INFO [stderr]    |
Dec 18 13:39:53.976 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 13:39:53.976 INFO [stderr] 
Dec 18 13:39:54.052 INFO [stderr] warning: variable does not need to be mutable
Dec 18 13:39:54.052 INFO [stderr]   --> src/lib.rs:61:17
Dec 18 13:39:54.052 INFO [stderr]    |
Dec 18 13:39:54.052 INFO [stderr] 61 |             let mut rhs = side.next().expect("Missing right hand side").trim().chars();
Dec 18 13:39:54.052 INFO [stderr]    |                 ----^^^
Dec 18 13:39:54.052 INFO [stderr]    |                 |
Dec 18 13:39:54.052 INFO [stderr]    |                 help: remove this `mut`
Dec 18 13:39:54.052 INFO [stderr]    |
Dec 18 13:39:54.052 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 13:39:54.052 INFO [stderr] 
Dec 18 13:39:54.552 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.95s
Dec 18 13:39:54.894 INFO running `"docker" "inspect" "8ccaa2ee4b6ec954e1dcfcb77bdc969ec80ae936be948d92f7e93d152fdca014"`
Dec 18 13:39:54.971 INFO running `"docker" "rm" "-f" "8ccaa2ee4b6ec954e1dcfcb77bdc969ec80ae936be948d92f7e93d152fdca014"`
Dec 18 13:39:55.068 INFO [stdout] 8ccaa2ee4b6ec954e1dcfcb77bdc969ec80ae936be948d92f7e93d152fdca014