Nov 28 06:49:09.685 INFO checking ddefrenne/battleship against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 06:49:09.686 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-4/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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"`
Nov 28 06:49:09.907 INFO [stdout] 1179db29f530160654989447250c2381068a578bdef5533d3e7943c7aa44260c
Nov 28 06:49:09.909 INFO running `"docker" "start" "-a" "1179db29f530160654989447250c2381068a578bdef5533d3e7943c7aa44260c"`
Nov 28 06:49:10.238 INFO [stderr] usermod: no changes
Nov 28 06:49:10.275 INFO [stderr]     Checking battleship v0.1.0 (/source)
Nov 28 06:49:10.515 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Nov 28 06:49:10.516 INFO [stderr]   --> src/main.rs:19:19
Nov 28 06:49:10.516 INFO [stderr]    |
Nov 28 06:49:10.516 INFO [stderr] 19 |     for column in (1..amount_of_columns + 1) {
Nov 28 06:49:10.517 INFO [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 28 06:49:10.517 INFO [stderr]    |
Nov 28 06:49:10.517 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Nov 28 06:49:10.518 INFO [stderr] 
Nov 28 06:49:10.548 INFO [stderr] warning: unused variable: `grid`
Nov 28 06:49:10.548 INFO [stderr]  --> src/main.rs:5:9
Nov 28 06:49:10.549 INFO [stderr]   |
Nov 28 06:49:10.549 INFO [stderr] 5 |     let grid = build_grid(&rows, amount_of_columns);
Nov 28 06:49:10.549 INFO [stderr]   |         ^^^^ help: consider using `_grid` instead
Nov 28 06:49:10.549 INFO [stderr]   |
Nov 28 06:49:10.549 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 28 06:49:10.549 INFO [stderr] 
Nov 28 06:49:10.549 INFO [stderr] warning: unused variable: `rows`
Nov 28 06:49:10.550 INFO [stderr]  --> src/main.rs:8:15
Nov 28 06:49:10.550 INFO [stderr]   |
Nov 28 06:49:10.550 INFO [stderr] 8 | fn build_grid(rows: &[char; 10], amount_of_columns: i32) {
Nov 28 06:49:10.550 INFO [stderr]   |               ^^^^ help: consider using `_rows` instead
Nov 28 06:49:10.550 INFO [stderr] 
Nov 28 06:49:10.592 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Nov 28 06:49:10.592 INFO [stderr]   --> src/main.rs:19:19
Nov 28 06:49:10.592 INFO [stderr]    |
Nov 28 06:49:10.593 INFO [stderr] 19 |     for column in (1..amount_of_columns + 1) {
Nov 28 06:49:10.593 INFO [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 28 06:49:10.593 INFO [stderr]    |
Nov 28 06:49:10.594 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Nov 28 06:49:10.594 INFO [stderr] 
Nov 28 06:49:10.629 INFO [stderr] warning: unused variable: `grid`
Nov 28 06:49:10.629 INFO [stderr]  --> src/main.rs:5:9
Nov 28 06:49:10.629 INFO [stderr]   |
Nov 28 06:49:10.630 INFO [stderr] 5 |     let grid = build_grid(&rows, amount_of_columns);
Nov 28 06:49:10.630 INFO [stderr]   |         ^^^^ help: consider using `_grid` instead
Nov 28 06:49:10.630 INFO [stderr]   |
Nov 28 06:49:10.631 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 28 06:49:10.631 INFO [stderr] 
Nov 28 06:49:10.631 INFO [stderr] warning: unused variable: `rows`
Nov 28 06:49:10.631 INFO [stderr]  --> src/main.rs:8:15
Nov 28 06:49:10.632 INFO [stderr]   |
Nov 28 06:49:10.632 INFO [stderr] 8 | fn build_grid(rows: &[char; 10], amount_of_columns: i32) {
Nov 28 06:49:10.632 INFO [stderr]   |               ^^^^ help: consider using `_rows` instead
Nov 28 06:49:10.633 INFO [stderr] 
Nov 28 06:49:10.652 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.39s
Nov 28 06:49:10.656 INFO [stderr] su: No module specific data is present
Nov 28 06:49:11.034 INFO running `"docker" "inspect" "1179db29f530160654989447250c2381068a578bdef5533d3e7943c7aa44260c"`
Nov 28 06:49:11.156 INFO running `"docker" "rm" "-f" "1179db29f530160654989447250c2381068a578bdef5533d3e7943c7aa44260c"`
Nov 28 06:49:11.256 INFO [stdout] 1179db29f530160654989447250c2381068a578bdef5533d3e7943c7aa44260c