Nov 01 06:19:02.317 INFO checking ddefrenne/battleship against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Nov 01 06:19:02.317 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-5/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-55538/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/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 +d7816399d50d407bbce1efe9dbadf8faaaf568fc-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 01 06:19:02.757 INFO blam! 1d5c1da0a6e3d483f8481f8c8b41183425c994315574f490b33514c12077dc43
Nov 01 06:19:02.758 INFO running `"docker" "start" "-a" "1d5c1da0a6e3d483f8481f8c8b41183425c994315574f490b33514c12077dc43"`
Nov 01 06:19:04.765 INFO kablam! usermod: no changes
Nov 01 06:19:04.804 INFO kablam!     Checking battleship v0.1.0 (/source)
Nov 01 06:19:05.332 INFO kablam! warning: unnecessary parentheses around `for` head expression
Nov 01 06:19:05.332 INFO kablam!   --> src/main.rs:19:19
Nov 01 06:19:05.332 INFO kablam!    |
Nov 01 06:19:05.332 INFO kablam! 19 |     for column in (1..amount_of_columns + 1) {
Nov 01 06:19:05.332 INFO kablam!    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 01 06:19:05.352 INFO kablam!    |
Nov 01 06:19:05.353 INFO kablam!    = note: #[warn(unused_parens)] on by default
Nov 01 06:19:05.353 INFO kablam! 
Nov 01 06:19:05.428 INFO kablam! warning: unused variable: `grid`
Nov 01 06:19:05.428 INFO kablam!  --> src/main.rs:5:9
Nov 01 06:19:05.428 INFO kablam!   |
Nov 01 06:19:05.429 INFO kablam! 5 |     let grid = build_grid(&rows, amount_of_columns);
Nov 01 06:19:05.429 INFO kablam!   |         ^^^^ help: consider using `_grid` instead
Nov 01 06:19:05.429 INFO kablam!   |
Nov 01 06:19:05.429 INFO kablam!   = note: #[warn(unused_variables)] on by default
Nov 01 06:19:05.429 INFO kablam! 
Nov 01 06:19:05.429 INFO kablam! warning: unused variable: `rows`
Nov 01 06:19:05.430 INFO kablam!  --> src/main.rs:8:15
Nov 01 06:19:05.430 INFO kablam!   |
Nov 01 06:19:05.430 INFO kablam! 8 | fn build_grid(rows: &[char; 10], amount_of_columns: i32) {
Nov 01 06:19:05.430 INFO kablam!   |               ^^^^ help: consider using `_rows` instead
Nov 01 06:19:05.431 INFO kablam! 
Nov 01 06:19:05.541 INFO kablam! warning: unnecessary parentheses around `for` head expression
Nov 01 06:19:05.541 INFO kablam!   --> src/main.rs:19:19
Nov 01 06:19:05.541 INFO kablam!    |
Nov 01 06:19:05.542 INFO kablam! 19 |     for column in (1..amount_of_columns + 1) {
Nov 01 06:19:05.542 INFO kablam!    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 01 06:19:05.542 INFO kablam!    |
Nov 01 06:19:05.543 INFO kablam!    = note: #[warn(unused_parens)] on by default
Nov 01 06:19:05.543 INFO kablam! 
Nov 01 06:19:05.584 INFO kablam! warning: unused variable: `grid`
Nov 01 06:19:05.585 INFO kablam!  --> src/main.rs:5:9
Nov 01 06:19:05.585 INFO kablam!   |
Nov 01 06:19:05.585 INFO kablam! 5 |     let grid = build_grid(&rows, amount_of_columns);
Nov 01 06:19:05.585 INFO kablam!   |         ^^^^ help: consider using `_grid` instead
Nov 01 06:19:05.585 INFO kablam!   |
Nov 01 06:19:05.585 INFO kablam!   = note: #[warn(unused_variables)] on by default
Nov 01 06:19:05.586 INFO kablam! 
Nov 01 06:19:05.586 INFO kablam! warning: unused variable: `rows`
Nov 01 06:19:05.586 INFO kablam!  --> src/main.rs:8:15
Nov 01 06:19:05.586 INFO kablam!   |
Nov 01 06:19:05.586 INFO kablam! 8 | fn build_grid(rows: &[char; 10], amount_of_columns: i32) {
Nov 01 06:19:05.586 INFO kablam!   |               ^^^^ help: consider using `_rows` instead
Nov 01 06:19:05.586 INFO kablam! 
Nov 01 06:19:05.633 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
Nov 01 06:19:05.636 INFO kablam! su: No module specific data is present
Nov 01 06:19:06.367 INFO running `"docker" "rm" "-f" "1d5c1da0a6e3d483f8481f8c8b41183425c994315574f490b33514c12077dc43"`
Nov 01 06:19:06.510 INFO blam! 1d5c1da0a6e3d483f8481f8c8b41183425c994315574f490b33514c12077dc43