Dec 11 15:50:22.428 INFO checking k2bd/star_battle_mc_solver against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 15:50:22.429 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 11 15:50:22.865 INFO [stdout] 96ebe5d19f055e3afe0929d53f00115e7142f39db0078c9ad1747f4ca37da692
Dec 11 15:50:22.867 INFO running `"docker" "start" "-a" "96ebe5d19f055e3afe0929d53f00115e7142f39db0078c9ad1747f4ca37da692"`
Dec 11 15:50:24.736 INFO [stderr] usermod: no changes
Dec 11 15:50:24.836 INFO [stderr]     Checking star_battle v0.1.0 (/source)
Dec 11 15:50:25.240 INFO [stderr] warning: unused import: `rand::Rng`
Dec 11 15:50:25.241 INFO [stderr]  --> src/main.rs:6:5
Dec 11 15:50:25.241 INFO [stderr]   |
Dec 11 15:50:25.241 INFO [stderr] 6 | use rand::Rng;
Dec 11 15:50:25.241 INFO [stderr]   |     ^^^^^^^^^
Dec 11 15:50:25.241 INFO [stderr]   |
Dec 11 15:50:25.242 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 15:50:25.242 INFO [stderr] 
Dec 11 15:50:25.332 INFO [stderr] warning: unused import: `rand::Rng`
Dec 11 15:50:25.332 INFO [stderr]  --> src/main.rs:6:5
Dec 11 15:50:25.332 INFO [stderr]   |
Dec 11 15:50:25.332 INFO [stderr] 6 | use rand::Rng;
Dec 11 15:50:25.332 INFO [stderr]   |     ^^^^^^^^^
Dec 11 15:50:25.332 INFO [stderr]   |
Dec 11 15:50:25.332 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 15:50:25.332 INFO [stderr] 
Dec 11 15:50:25.380 INFO [stderr] warning: unused variable: `regions`
Dec 11 15:50:25.380 INFO [stderr]   --> src/main.rs:92:39
Dec 11 15:50:25.380 INFO [stderr]    |
Dec 11 15:50:25.380 INFO [stderr] 92 | fn score(star_board: &Vec<Vec<bool>>, regions: &Vec<Vec<char>>, n_stars: usize) -> usize {
Dec 11 15:50:25.380 INFO [stderr]    |                                       ^^^^^^^ help: consider using `_regions` instead
Dec 11 15:50:25.380 INFO [stderr]    |
Dec 11 15:50:25.380 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 15:50:25.380 INFO [stderr] 
Dec 11 15:50:25.380 INFO [stderr] warning: unused variable: `row`
Dec 11 15:50:25.380 INFO [stderr]    --> src/main.rs:131:9
Dec 11 15:50:25.380 INFO [stderr]     |
Dec 11 15:50:25.380 INFO [stderr] 131 |     for row in board {
Dec 11 15:50:25.380 INFO [stderr]     |         ^^^ help: consider using `_row` instead
Dec 11 15:50:25.380 INFO [stderr] 
Dec 11 15:50:25.400 INFO [stderr] warning: variable does not need to be mutable
Dec 11 15:50:25.400 INFO [stderr]   --> src/main.rs:14:9
Dec 11 15:50:25.400 INFO [stderr]    |
Dec 11 15:50:25.401 INFO [stderr] 14 |     let mut filename;
Dec 11 15:50:25.401 INFO [stderr]    |         ----^^^^^^^^
Dec 11 15:50:25.401 INFO [stderr]    |         |
Dec 11 15:50:25.401 INFO [stderr]    |         help: remove this `mut`
Dec 11 15:50:25.401 INFO [stderr]    |
Dec 11 15:50:25.401 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 15:50:25.402 INFO [stderr] 
Dec 11 15:50:25.508 INFO [stderr] warning: unused variable: `regions`
Dec 11 15:50:25.508 INFO [stderr]   --> src/main.rs:92:39
Dec 11 15:50:25.508 INFO [stderr]    |
Dec 11 15:50:25.508 INFO [stderr] 92 | fn score(star_board: &Vec<Vec<bool>>, regions: &Vec<Vec<char>>, n_stars: usize) -> usize {
Dec 11 15:50:25.508 INFO [stderr]    |                                       ^^^^^^^ help: consider using `_regions` instead
Dec 11 15:50:25.508 INFO [stderr]    |
Dec 11 15:50:25.508 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 15:50:25.508 INFO [stderr] 
Dec 11 15:50:25.508 INFO [stderr] warning: unused variable: `row`
Dec 11 15:50:25.508 INFO [stderr]    --> src/main.rs:131:9
Dec 11 15:50:25.508 INFO [stderr]     |
Dec 11 15:50:25.508 INFO [stderr] 131 |     for row in board {
Dec 11 15:50:25.508 INFO [stderr]     |         ^^^ help: consider using `_row` instead
Dec 11 15:50:25.508 INFO [stderr] 
Dec 11 15:50:25.524 INFO [stderr] warning: variable does not need to be mutable
Dec 11 15:50:25.524 INFO [stderr]   --> src/main.rs:14:9
Dec 11 15:50:25.524 INFO [stderr]    |
Dec 11 15:50:25.524 INFO [stderr] 14 |     let mut filename;
Dec 11 15:50:25.524 INFO [stderr]    |         ----^^^^^^^^
Dec 11 15:50:25.524 INFO [stderr]    |         |
Dec 11 15:50:25.524 INFO [stderr]    |         help: remove this `mut`
Dec 11 15:50:25.524 INFO [stderr]    |
Dec 11 15:50:25.524 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 15:50:25.524 INFO [stderr] 
Dec 11 15:50:25.571 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
Dec 11 15:50:25.572 INFO [stderr] su: No module specific data is present
Dec 11 15:50:26.716 INFO running `"docker" "inspect" "96ebe5d19f055e3afe0929d53f00115e7142f39db0078c9ad1747f4ca37da692"`
Dec 11 15:50:27.018 INFO running `"docker" "rm" "-f" "96ebe5d19f055e3afe0929d53f00115e7142f39db0078c9ad1747f4ca37da692"`
Dec 11 15:50:27.380 INFO [stdout] 96ebe5d19f055e3afe0929d53f00115e7142f39db0078c9ad1747f4ca37da692