Nov 09 14:15:20.379 INFO checking ddefrenne/battleship against master#653da4fd006c97625247acd7e076d0782cdc149b for pr-55632
Nov 09 14:15:20.380 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55632/worker-4/master#653da4fd006c97625247acd7e076d0782cdc149b:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55632/master#653da4fd006c97625247acd7e076d0782cdc149b:/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 +653da4fd006c97625247acd7e076d0782cdc149b-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 09 14:15:20.915 INFO blam! 24b4e2476285a46f103fcd92e853ec8020a78fc7615381547509081e48c7f1a3
Nov 09 14:15:20.923 INFO running `"docker" "start" "-a" "24b4e2476285a46f103fcd92e853ec8020a78fc7615381547509081e48c7f1a3"`
Nov 09 14:15:21.535 INFO kablam! usermod: no changes
Nov 09 14:15:21.576 INFO kablam!     Checking battleship v0.1.0 (/source)
Nov 09 14:15:21.883 INFO kablam! warning: unnecessary parentheses around `for` head expression
Nov 09 14:15:21.883 INFO kablam!   --> src/main.rs:19:19
Nov 09 14:15:21.883 INFO kablam!    |
Nov 09 14:15:21.883 INFO kablam! 19 |     for column in (1..amount_of_columns + 1) {
Nov 09 14:15:21.883 INFO kablam!    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 09 14:15:21.883 INFO kablam!    |
Nov 09 14:15:21.883 INFO kablam!    = note: #[warn(unused_parens)] on by default
Nov 09 14:15:21.883 INFO kablam! 
Nov 09 14:15:21.911 INFO kablam! warning: unused variable: `grid`
Nov 09 14:15:21.911 INFO kablam!  --> src/main.rs:5:9
Nov 09 14:15:21.911 INFO kablam!   |
Nov 09 14:15:21.911 INFO kablam! 5 |     let grid = build_grid(&rows, amount_of_columns);
Nov 09 14:15:21.911 INFO kablam!   |         ^^^^ help: consider using `_grid` instead
Nov 09 14:15:21.911 INFO kablam!   |
Nov 09 14:15:21.911 INFO kablam!   = note: #[warn(unused_variables)] on by default
Nov 09 14:15:21.911 INFO kablam! 
Nov 09 14:15:21.911 INFO kablam! warning: unused variable: `rows`
Nov 09 14:15:21.911 INFO kablam!  --> src/main.rs:8:15
Nov 09 14:15:21.911 INFO kablam!   |
Nov 09 14:15:21.911 INFO kablam! 8 | fn build_grid(rows: &[char; 10], amount_of_columns: i32) {
Nov 09 14:15:21.911 INFO kablam!   |               ^^^^ help: consider using `_rows` instead
Nov 09 14:15:21.911 INFO kablam! 
Nov 09 14:15:21.913 INFO kablam! warning: unnecessary parentheses around `for` head expression
Nov 09 14:15:21.913 INFO kablam!   --> src/main.rs:19:19
Nov 09 14:15:21.913 INFO kablam!    |
Nov 09 14:15:21.913 INFO kablam! 19 |     for column in (1..amount_of_columns + 1) {
Nov 09 14:15:21.913 INFO kablam!    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 09 14:15:21.913 INFO kablam!    |
Nov 09 14:15:21.913 INFO kablam!    = note: #[warn(unused_parens)] on by default
Nov 09 14:15:21.913 INFO kablam! 
Nov 09 14:15:21.938 INFO kablam! warning: unused variable: `grid`
Nov 09 14:15:21.938 INFO kablam!  --> src/main.rs:5:9
Nov 09 14:15:21.939 INFO kablam!   |
Nov 09 14:15:21.939 INFO kablam! 5 |     let grid = build_grid(&rows, amount_of_columns);
Nov 09 14:15:21.939 INFO kablam!   |         ^^^^ help: consider using `_grid` instead
Nov 09 14:15:21.939 INFO kablam!   |
Nov 09 14:15:21.939 INFO kablam!   = note: #[warn(unused_variables)] on by default
Nov 09 14:15:21.939 INFO kablam! 
Nov 09 14:15:21.939 INFO kablam! warning: unused variable: `rows`
Nov 09 14:15:21.939 INFO kablam!  --> src/main.rs:8:15
Nov 09 14:15:21.939 INFO kablam!   |
Nov 09 14:15:21.939 INFO kablam! 8 | fn build_grid(rows: &[char; 10], amount_of_columns: i32) {
Nov 09 14:15:21.939 INFO kablam!   |               ^^^^ help: consider using `_rows` instead
Nov 09 14:15:21.939 INFO kablam! 
Nov 09 14:15:21.962 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
Nov 09 14:15:21.974 INFO kablam! su: No module specific data is present
Nov 09 14:15:22.195 INFO running `"docker" "rm" "-f" "24b4e2476285a46f103fcd92e853ec8020a78fc7615381547509081e48c7f1a3"`
Nov 09 14:15:22.319 INFO blam! 24b4e2476285a46f103fcd92e853ec8020a78fc7615381547509081e48c7f1a3