Dec 18 09:35:38.654 INFO checking veb-rs-0.1.1 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 09:35:38.654 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/veb-rs/0.1.1:/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 09:35:38.805 INFO [stdout] 747c8fa1f3ee4fe39dfc67ab6815113cb984e1c3d353b14f0b981dc61643782a
Dec 18 09:35:38.812 INFO running `"docker" "start" "-a" "747c8fa1f3ee4fe39dfc67ab6815113cb984e1c3d353b14f0b981dc61643782a"`
Dec 18 09:35:39.378 INFO [stderr]     Checking veb-rs v0.1.1 (/opt/crater/workdir)
Dec 18 09:35:39.629 INFO [stderr] warning: variable does not need to be mutable
Dec 18 09:35:39.629 INFO [stderr]    --> src/lib.rs:254:21
Dec 18 09:35:39.629 INFO [stderr]     |
Dec 18 09:35:39.629 INFO [stderr] 254 |                 let mut subtree = &mut self.children[idx as usize];
Dec 18 09:35:39.629 INFO [stderr]     |                     ----^^^^^^^
Dec 18 09:35:39.629 INFO [stderr]     |                     |
Dec 18 09:35:39.630 INFO [stderr]     |                     help: remove this `mut`
Dec 18 09:35:39.630 INFO [stderr]     |
Dec 18 09:35:39.630 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 09:35:39.630 INFO [stderr] 
Dec 18 09:35:39.682 INFO [stderr] warning: variable does not need to be mutable
Dec 18 09:35:39.682 INFO [stderr]    --> src/lib.rs:254:21
Dec 18 09:35:39.682 INFO [stderr]     |
Dec 18 09:35:39.682 INFO [stderr] 254 |                 let mut subtree = &mut self.children[idx as usize];
Dec 18 09:35:39.682 INFO [stderr]     |                     ----^^^^^^^
Dec 18 09:35:39.682 INFO [stderr]     |                     |
Dec 18 09:35:39.682 INFO [stderr]     |                     help: remove this `mut`
Dec 18 09:35:39.682 INFO [stderr]     |
Dec 18 09:35:39.682 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 09:35:39.682 INFO [stderr] 
Dec 18 09:35:39.717 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.36s
Dec 18 09:35:40.020 INFO running `"docker" "inspect" "747c8fa1f3ee4fe39dfc67ab6815113cb984e1c3d353b14f0b981dc61643782a"`
Dec 18 09:35:40.184 INFO running `"docker" "rm" "-f" "747c8fa1f3ee4fe39dfc67ab6815113cb984e1c3d353b14f0b981dc61643782a"`
Dec 18 09:35:40.299 INFO [stdout] 747c8fa1f3ee4fe39dfc67ab6815113cb984e1c3d353b14f0b981dc61643782a