Nov 04 08:05:23.594 INFO checking ddefrenne/battleship against master#2ad8c7b3502616aff142a4640cce911c6c2c5463 for pr-55655
Nov 04 08:05:23.594 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55655/worker-1/master#2ad8c7b3502616aff142a4640cce911c6c2c5463:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-55655/master#2ad8c7b3502616aff142a4640cce911c6c2c5463:/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 +2ad8c7b3502616aff142a4640cce911c6c2c5463-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 04 08:05:23.799 INFO blam! 11e6b09920a888334267f9e63881096681733725c3b2d4a70a5e8af967084a34
Nov 04 08:05:23.800 INFO running `"docker" "start" "-a" "11e6b09920a888334267f9e63881096681733725c3b2d4a70a5e8af967084a34"`
Nov 04 08:05:24.383 INFO kablam! usermod: no changes
Nov 04 08:05:24.459 INFO kablam!     Checking battleship v0.1.0 (/source)
Nov 04 08:05:24.820 INFO kablam! warning: unnecessary parentheses around `for` head expression
Nov 04 08:05:24.820 INFO kablam!   --> src/main.rs:19:19
Nov 04 08:05:24.820 INFO kablam!    |
Nov 04 08:05:24.820 INFO kablam! 19 |     for column in (1..amount_of_columns + 1) {
Nov 04 08:05:24.820 INFO kablam!    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 04 08:05:24.820 INFO kablam!    |
Nov 04 08:05:24.820 INFO kablam!    = note: #[warn(unused_parens)] on by default
Nov 04 08:05:24.820 INFO kablam! 
Nov 04 08:05:24.851 INFO kablam! warning: unused variable: `grid`
Nov 04 08:05:24.851 INFO kablam!  --> src/main.rs:5:9
Nov 04 08:05:24.851 INFO kablam!   |
Nov 04 08:05:24.851 INFO kablam! 5 |     let grid = build_grid(&rows, amount_of_columns);
Nov 04 08:05:24.851 INFO kablam!   |         ^^^^ help: consider using `_grid` instead
Nov 04 08:05:24.851 INFO kablam! warning: unnecessary parentheses around `for` head expression
Nov 04 08:05:24.851 INFO kablam!   --> src/main.rs:19:19
Nov 04 08:05:24.851 INFO kablam!    |
Nov 04 08:05:24.851 INFO kablam! 19 |     for column in (1..amount_of_columns + 1) {
Nov 04 08:05:24.851 INFO kablam!    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 04 08:05:24.851 INFO kablam!    |
Nov 04 08:05:24.851 INFO kablam!    = note: #[warn(unused_parens)] on by default
Nov 04 08:05:24.851 INFO kablam! 
Nov 04 08:05:24.851 INFO kablam!   |
Nov 04 08:05:24.851 INFO kablam!   = note: #[warn(unused_variables)] on by default
Nov 04 08:05:24.851 INFO kablam! 
Nov 04 08:05:24.851 INFO kablam! warning: unused variable: `rows`
Nov 04 08:05:24.851 INFO kablam!  --> src/main.rs:8:15
Nov 04 08:05:24.851 INFO kablam!   |
Nov 04 08:05:24.851 INFO kablam! 8 | fn build_grid(rows: &[char; 10], amount_of_columns: i32) {
Nov 04 08:05:24.851 INFO kablam!   |               ^^^^ help: consider using `_rows` instead
Nov 04 08:05:24.851 INFO kablam! 
Nov 04 08:05:24.882 INFO kablam! warning: unused variable: `grid`
Nov 04 08:05:24.882 INFO kablam!  --> src/main.rs:5:9
Nov 04 08:05:24.882 INFO kablam!   |
Nov 04 08:05:24.882 INFO kablam! 5 |     let grid = build_grid(&rows, amount_of_columns);
Nov 04 08:05:24.882 INFO kablam!   |         ^^^^ help: consider using `_grid` instead
Nov 04 08:05:24.883 INFO kablam!   |
Nov 04 08:05:24.883 INFO kablam!   = note: #[warn(unused_variables)] on by default
Nov 04 08:05:24.883 INFO kablam! 
Nov 04 08:05:24.883 INFO kablam! warning: unused variable: `rows`
Nov 04 08:05:24.883 INFO kablam!  --> src/main.rs:8:15
Nov 04 08:05:24.883 INFO kablam!   |
Nov 04 08:05:24.883 INFO kablam! 8 | fn build_grid(rows: &[char; 10], amount_of_columns: i32) {
Nov 04 08:05:24.883 INFO kablam!   |               ^^^^ help: consider using `_rows` instead
Nov 04 08:05:24.883 INFO kablam! 
Nov 04 08:05:24.906 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.49s
Nov 04 08:05:24.908 INFO kablam! su: No module specific data is present
Nov 04 08:05:25.368 INFO running `"docker" "rm" "-f" "11e6b09920a888334267f9e63881096681733725c3b2d4a70a5e8af967084a34"`
Nov 04 08:05:25.527 INFO blam! 11e6b09920a888334267f9e63881096681733725c3b2d4a70a5e8af967084a34