Dec 12 10:10:47.806 INFO checking peggler-0.1.0 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 10:10:47.806 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-1/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 10:10:48.140 INFO [stdout] 4ce453a59380efcc2315a8b3f5ebd9b212cb32e4b300ac99d1c3413b0dbcffb6
Dec 12 10:10:48.142 INFO running `"docker" "start" "-a" "4ce453a59380efcc2315a8b3f5ebd9b212cb32e4b300ac99d1c3413b0dbcffb6"`
Dec 12 10:10:49.368 INFO [stderr] usermod: no changes
Dec 12 10:10:49.416 INFO [stderr]     Checking peggler v0.1.0 (/source)
Dec 12 10:10:52.916 INFO [stderr] warning: variable does not need to be mutable
Dec 12 10:10:52.916 INFO [stderr]  --> tests/arithmetic.rs:9:9
Dec 12 10:10:52.916 INFO [stderr]   |
Dec 12 10:10:52.916 INFO [stderr] 9 |     let mut end : usize;
Dec 12 10:10:52.916 INFO [stderr]   |         ----^^^
Dec 12 10:10:52.916 INFO [stderr]   |         |
Dec 12 10:10:52.916 INFO [stderr]   |         help: remove this `mut`
Dec 12 10:10:52.916 INFO [stderr]   |
Dec 12 10:10:52.916 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 12 10:10:52.916 INFO [stderr] 
Dec 12 10:10:53.446 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.06s
Dec 12 10:10:53.448 INFO [stderr] su: No module specific data is present
Dec 12 10:10:54.689 INFO running `"docker" "inspect" "4ce453a59380efcc2315a8b3f5ebd9b212cb32e4b300ac99d1c3413b0dbcffb6"`
Dec 12 10:10:55.106 INFO running `"docker" "rm" "-f" "4ce453a59380efcc2315a8b3f5ebd9b212cb32e4b300ac99d1c3413b0dbcffb6"`
Dec 12 10:10:55.493 INFO [stdout] 4ce453a59380efcc2315a8b3f5ebd9b212cb32e4b300ac99d1c3413b0dbcffb6