Dec 12 18:22:58.999 INFO checking ai-0.1.0 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 18:22:58.999 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 18:22:59.344 INFO [stdout] f57b38c343a7621484d06e047c988c42174f446db6b9d862ec67e789b73eff4d
Dec 12 18:22:59.346 INFO running `"docker" "start" "-a" "f57b38c343a7621484d06e047c988c42174f446db6b9d862ec67e789b73eff4d"`
Dec 12 18:23:01.024 INFO [stderr] usermod: no changes
Dec 12 18:23:01.164 INFO [stderr]     Checking ai v0.1.0 (/source)
Dec 12 18:23:02.832 INFO [stderr] warning: value assigned to `new_indv` is never read
Dec 12 18:23:02.832 INFO [stderr]    --> src/chromosome.rs:139:17
Dec 12 18:23:02.832 INFO [stderr]     |
Dec 12 18:23:02.832 INFO [stderr] 139 |         let mut new_indv = Vec::new();
Dec 12 18:23:02.832 INFO [stderr]     |                 ^^^^^^^^
Dec 12 18:23:02.832 INFO [stderr]     |
Dec 12 18:23:02.832 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 12 18:23:02.832 INFO [stderr] 
Dec 12 18:23:02.832 INFO [stderr] warning: value assigned to `new_indv` is never read
Dec 12 18:23:02.832 INFO [stderr]    --> src/chromosome.rs:149:17
Dec 12 18:23:02.832 INFO [stderr]     |
Dec 12 18:23:02.832 INFO [stderr] 149 |         let mut new_indv = Vec::new();
Dec 12 18:23:02.832 INFO [stderr]     |                 ^^^^^^^^
Dec 12 18:23:02.832 INFO [stderr] 
Dec 12 18:23:02.848 INFO [stderr] warning: variable does not need to be mutable
Dec 12 18:23:02.848 INFO [stderr]    --> src/chromosome.rs:103:13
Dec 12 18:23:02.848 INFO [stderr]     |
Dec 12 18:23:02.848 INFO [stderr] 103 |         let mut individual = Chromosome::new();
Dec 12 18:23:02.848 INFO [stderr]     |             ----^^^^^^^^^^
Dec 12 18:23:02.848 INFO [stderr]     |             |
Dec 12 18:23:02.848 INFO [stderr]     |             help: remove this `mut`
Dec 12 18:23:02.848 INFO [stderr]     |
Dec 12 18:23:02.848 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 18:23:02.848 INFO [stderr] 
Dec 12 18:23:02.905 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.86s
Dec 12 18:23:02.908 INFO [stderr] su: No module specific data is present
Dec 12 18:23:03.874 INFO running `"docker" "inspect" "f57b38c343a7621484d06e047c988c42174f446db6b9d862ec67e789b73eff4d"`
Dec 12 18:23:04.316 INFO running `"docker" "rm" "-f" "f57b38c343a7621484d06e047c988c42174f446db6b9d862ec67e789b73eff4d"`
Dec 12 18:23:04.620 INFO [stdout] f57b38c343a7621484d06e047c988c42174f446db6b9d862ec67e789b73eff4d