Dec 12 04:37:20.080 INFO checking xi-rope-0.2.0 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 04:37:20.080 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-0/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 12 04:37:20.249 INFO [stdout] b7e82e8d98052f98b403ba617b2e85e7a7acb7d3e61313a5f7204d3c41b16e36
Dec 12 04:37:20.250 INFO running `"docker" "start" "-a" "b7e82e8d98052f98b403ba617b2e85e7a7acb7d3e61313a5f7204d3c41b16e36"`
Dec 12 04:37:20.824 INFO [stderr] usermod: no changes
Dec 12 04:37:20.863 INFO [stderr]     Checking xi-rope v0.2.0 (/source)
Dec 12 04:37:22.160 INFO [stderr] warning: variable does not need to be mutable
Dec 12 04:37:22.160 INFO [stderr]    --> src/tree.rs:237:17
Dec 12 04:37:22.160 INFO [stderr]     |
Dec 12 04:37:22.160 INFO [stderr] 237 |             let mut node1 = Arc::make_mut(&mut rope1.0);
Dec 12 04:37:22.160 INFO [stderr]     |                 ----^^^^^
Dec 12 04:37:22.160 INFO [stderr]     |                 |
Dec 12 04:37:22.160 INFO [stderr]     |                 help: remove this `mut`
Dec 12 04:37:22.160 INFO [stderr]     |
Dec 12 04:37:22.160 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 04:37:22.160 INFO [stderr] 
Dec 12 04:37:22.964 INFO [stderr] warning: variable does not need to be mutable
Dec 12 04:37:22.964 INFO [stderr]    --> src/tree.rs:237:17
Dec 12 04:37:22.964 INFO [stderr]     |
Dec 12 04:37:22.964 INFO [stderr] 237 |             let mut node1 = Arc::make_mut(&mut rope1.0);
Dec 12 04:37:22.964 INFO [stderr]     |                 ----^^^^^
Dec 12 04:37:22.964 INFO [stderr]     |                 |
Dec 12 04:37:22.964 INFO [stderr]     |                 help: remove this `mut`
Dec 12 04:37:22.964 INFO [stderr]     |
Dec 12 04:37:22.964 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 04:37:22.964 INFO [stderr] 
Dec 12 04:37:23.213 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.37s
Dec 12 04:37:23.213 INFO [stderr] su: No module specific data is present
Dec 12 04:37:23.882 INFO running `"docker" "inspect" "b7e82e8d98052f98b403ba617b2e85e7a7acb7d3e61313a5f7204d3c41b16e36"`
Dec 12 04:37:24.012 INFO running `"docker" "rm" "-f" "b7e82e8d98052f98b403ba617b2e85e7a7acb7d3e61313a5f7204d3c41b16e36"`
Dec 12 04:37:24.157 INFO [stdout] b7e82e8d98052f98b403ba617b2e85e7a7acb7d3e61313a5f7204d3c41b16e36