Dec 18 12:07:35.660 INFO checking rotor-carbon-0.7.0 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 12:07:35.660 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/rotor-carbon/0.7.0:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 12:07:36.101 INFO [stdout] e85b7bbefd33e1f18347fea953a73d1391a9969a37919ea10c70b98044053b1b
Dec 18 12:07:36.104 INFO running `"docker" "start" "-a" "e85b7bbefd33e1f18347fea953a73d1391a9969a37919ea10c70b98044053b1b"`
Dec 18 12:07:37.558 INFO [stderr]     Checking rotor-carbon v0.7.0 (/opt/crater/workdir)
Dec 18 12:07:38.222 INFO [stderr] warning: variable does not need to be mutable
Dec 18 12:07:38.222 INFO [stderr]   --> src/sender.rs:19:17
Dec 18 12:07:38.222 INFO [stderr]    |
Dec 18 12:07:38.222 INFO [stderr] 19 |             let mut buf = trans.output();
Dec 18 12:07:38.222 INFO [stderr]    |                 ----^^^
Dec 18 12:07:38.222 INFO [stderr]    |                 |
Dec 18 12:07:38.222 INFO [stderr]    |                 help: remove this `mut`
Dec 18 12:07:38.222 INFO [stderr]    |
Dec 18 12:07:38.222 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 12:07:38.222 INFO [stderr] 
Dec 18 12:07:38.222 INFO [stderr] warning: variable does not need to be mutable
Dec 18 12:07:38.222 INFO [stderr]   --> src/sender.rs:19:17
Dec 18 12:07:38.222 INFO [stderr]    |
Dec 18 12:07:38.222 INFO [stderr] 19 |             let mut buf = trans.output();
Dec 18 12:07:38.222 INFO [stderr]    |                 ----^^^
Dec 18 12:07:38.222 INFO [stderr]    |                 |
Dec 18 12:07:38.222 INFO [stderr]    |                 help: remove this `mut`
Dec 18 12:07:38.222 INFO [stderr] 
Dec 18 12:07:38.222 INFO [stderr] warning: variable does not need to be mutable
Dec 18 12:07:38.222 INFO [stderr]   --> src/sender.rs:32:17
Dec 18 12:07:38.222 INFO [stderr]    |
Dec 18 12:07:38.222 INFO [stderr] 32 |             let mut buf = trans.output();
Dec 18 12:07:38.222 INFO [stderr]    |                 ----^^^
Dec 18 12:07:38.222 INFO [stderr]    |                 |
Dec 18 12:07:38.222 INFO [stderr]    |                 help: remove this `mut`
Dec 18 12:07:38.222 INFO [stderr] 
Dec 18 12:07:38.352 INFO [stderr] warning: variable does not need to be mutable
Dec 18 12:07:38.352 INFO [stderr]   --> src/sender.rs:19:17
Dec 18 12:07:38.352 INFO [stderr]    |
Dec 18 12:07:38.352 INFO [stderr] 19 |             let mut buf = trans.output();
Dec 18 12:07:38.352 INFO [stderr]    |                 ----^^^
Dec 18 12:07:38.352 INFO [stderr]    |                 |
Dec 18 12:07:38.352 INFO [stderr]    |                 help: remove this `mut`
Dec 18 12:07:38.352 INFO [stderr]    |
Dec 18 12:07:38.352 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 12:07:38.352 INFO [stderr] 
Dec 18 12:07:38.352 INFO [stderr] warning: variable does not need to be mutable
Dec 18 12:07:38.352 INFO [stderr]   --> src/sender.rs:19:17
Dec 18 12:07:38.352 INFO [stderr]    |
Dec 18 12:07:38.352 INFO [stderr] 19 |             let mut buf = trans.output();
Dec 18 12:07:38.352 INFO [stderr]    |                 ----^^^
Dec 18 12:07:38.352 INFO [stderr]    |                 |
Dec 18 12:07:38.352 INFO [stderr]    |                 help: remove this `mut`
Dec 18 12:07:38.352 INFO [stderr] 
Dec 18 12:07:38.360 INFO [stderr] warning: variable does not need to be mutable
Dec 18 12:07:38.360 INFO [stderr]   --> src/sender.rs:32:17
Dec 18 12:07:38.360 INFO [stderr]    |
Dec 18 12:07:38.360 INFO [stderr] 32 |             let mut buf = trans.output();
Dec 18 12:07:38.360 INFO [stderr]    |                 ----^^^
Dec 18 12:07:38.360 INFO [stderr]    |                 |
Dec 18 12:07:38.360 INFO [stderr]    |                 help: remove this `mut`
Dec 18 12:07:38.360 INFO [stderr] 
Dec 18 12:07:38.888 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.44s
Dec 18 12:07:39.368 INFO running `"docker" "inspect" "e85b7bbefd33e1f18347fea953a73d1391a9969a37919ea10c70b98044053b1b"`
Dec 18 12:07:39.720 INFO running `"docker" "rm" "-f" "e85b7bbefd33e1f18347fea953a73d1391a9969a37919ea10c70b98044053b1b"`
Dec 18 12:07:39.993 INFO [stdout] e85b7bbefd33e1f18347fea953a73d1391a9969a37919ea10c70b98044053b1b