Dec 05 04:04:02.847 INFO checking xi-rope-0.2.0 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 04:04:02.847 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 04:04:03.208 INFO [stdout] 812a8858116dc67942567ce72060392e01d3b1ff315541da9b84ab6b0294e357
Dec 05 04:04:03.215 INFO running `"docker" "start" "-a" "812a8858116dc67942567ce72060392e01d3b1ff315541da9b84ab6b0294e357"`
Dec 05 04:04:04.307 INFO [stderr] usermod: no changes
Dec 05 04:04:04.428 INFO [stderr]     Checking xi-rope v0.2.0 (/source)
Dec 05 04:04:05.551 INFO [stderr] warning: variable does not need to be mutable
Dec 05 04:04:05.551 INFO [stderr]    --> src/tree.rs:237:17
Dec 05 04:04:05.551 INFO [stderr]     |
Dec 05 04:04:05.551 INFO [stderr] 237 |             let mut node1 = Arc::make_mut(&mut rope1.0);
Dec 05 04:04:05.551 INFO [stderr]     |                 ----^^^^^
Dec 05 04:04:05.551 INFO [stderr]     |                 |
Dec 05 04:04:05.551 INFO [stderr]     |                 help: remove this `mut`
Dec 05 04:04:05.551 INFO [stderr]     |
Dec 05 04:04:05.551 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 04:04:05.551 INFO [stderr] 
Dec 05 04:04:06.304 INFO [stderr] warning: variable does not need to be mutable
Dec 05 04:04:06.304 INFO [stderr]    --> src/tree.rs:237:17
Dec 05 04:04:06.304 INFO [stderr]     |
Dec 05 04:04:06.304 INFO [stderr] 237 |             let mut node1 = Arc::make_mut(&mut rope1.0);
Dec 05 04:04:06.304 INFO [stderr]     |                 ----^^^^^
Dec 05 04:04:06.304 INFO [stderr]     |                 |
Dec 05 04:04:06.304 INFO [stderr]     |                 help: remove this `mut`
Dec 05 04:04:06.304 INFO [stderr]     |
Dec 05 04:04:06.304 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 04:04:06.304 INFO [stderr] 
Dec 05 04:04:06.567 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.21s
Dec 05 04:04:06.567 INFO [stderr] su: No module specific data is present
Dec 05 04:04:06.963 INFO running `"docker" "inspect" "812a8858116dc67942567ce72060392e01d3b1ff315541da9b84ab6b0294e357"`
Dec 05 04:04:07.255 INFO running `"docker" "rm" "-f" "812a8858116dc67942567ce72060392e01d3b1ff315541da9b84ab6b0294e357"`
Dec 05 04:04:07.448 INFO [stdout] 812a8858116dc67942567ce72060392e01d3b1ff315541da9b84ab6b0294e357