Nov 02 15:49:49.382 INFO checking ddefrenne/battleship against try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7 for pr-55517
Nov 02 15:49:49.384 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55517/worker-5/try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-55517/try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7:/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 +dc8b02d6f1e93f212fc39844ea688b634b4a03c7-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 02 15:49:49.755 INFO blam! 9f1cbb8b541ea78586a25a052131409d6227a6b1e472afa5b549835f876144af
Nov 02 15:49:49.757 INFO running `"docker" "start" "-a" "9f1cbb8b541ea78586a25a052131409d6227a6b1e472afa5b549835f876144af"`
Nov 02 15:49:50.477 INFO kablam! usermod: no changes
Nov 02 15:49:50.499 INFO kablam!     Checking battleship v0.1.0 (/source)
Nov 02 15:49:50.809 INFO kablam! warning: unnecessary parentheses around `for` head expression
Nov 02 15:49:50.809 INFO kablam!   --> src/main.rs:19:19
Nov 02 15:49:50.810 INFO kablam!    |
Nov 02 15:49:50.810 INFO kablam! 19 |     for column in (1..amount_of_columns + 1) {
Nov 02 15:49:50.810 INFO kablam!    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 02 15:49:50.811 INFO kablam!    |
Nov 02 15:49:50.811 INFO kablam!    = note: #[warn(unused_parens)] on by default
Nov 02 15:49:50.811 INFO kablam! 
Nov 02 15:49:50.864 INFO kablam! warning: unused variable: `grid`
Nov 02 15:49:50.865 INFO kablam!  --> src/main.rs:5:9
Nov 02 15:49:50.865 INFO kablam!   |
Nov 02 15:49:50.865 INFO kablam! 5 |     let grid = build_grid(&rows, amount_of_columns);
Nov 02 15:49:50.866 INFO kablam!   |         ^^^^ help: consider using `_grid` instead
Nov 02 15:49:50.866 INFO kablam!   |
Nov 02 15:49:50.866 INFO kablam!   = note: #[warn(unused_variables)] on by default
Nov 02 15:49:50.866 INFO kablam! 
Nov 02 15:49:50.867 INFO kablam! warning: unused variable: `rows`
Nov 02 15:49:50.867 INFO kablam!  --> src/main.rs:8:15
Nov 02 15:49:50.867 INFO kablam!   |
Nov 02 15:49:50.867 INFO kablam! 8 | fn build_grid(rows: &[char; 10], amount_of_columns: i32) {
Nov 02 15:49:50.868 INFO kablam!   |               ^^^^ help: consider using `_rows` instead
Nov 02 15:49:50.868 INFO kablam! 
Nov 02 15:49:50.899 INFO kablam! warning: unnecessary parentheses around `for` head expression
Nov 02 15:49:50.899 INFO kablam!   --> src/main.rs:19:19
Nov 02 15:49:50.899 INFO kablam!    |
Nov 02 15:49:50.899 INFO kablam! 19 |     for column in (1..amount_of_columns + 1) {
Nov 02 15:49:50.899 INFO kablam!    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 02 15:49:50.899 INFO kablam!    |
Nov 02 15:49:50.899 INFO kablam!    = note: #[warn(unused_parens)] on by default
Nov 02 15:49:50.899 INFO kablam! 
Nov 02 15:49:50.920 INFO kablam! warning: unused variable: `grid`
Nov 02 15:49:50.921 INFO kablam!  --> src/main.rs:5:9
Nov 02 15:49:50.921 INFO kablam!   |
Nov 02 15:49:50.921 INFO kablam! 5 |     let grid = build_grid(&rows, amount_of_columns);
Nov 02 15:49:50.922 INFO kablam!   |         ^^^^ help: consider using `_grid` instead
Nov 02 15:49:50.922 INFO kablam!   |
Nov 02 15:49:50.922 INFO kablam!   = note: #[warn(unused_variables)] on by default
Nov 02 15:49:50.922 INFO kablam! 
Nov 02 15:49:50.923 INFO kablam! warning: unused variable: `rows`
Nov 02 15:49:50.923 INFO kablam!  --> src/main.rs:8:15
Nov 02 15:49:50.923 INFO kablam!   |
Nov 02 15:49:50.924 INFO kablam! 8 | fn build_grid(rows: &[char; 10], amount_of_columns: i32) {
Nov 02 15:49:50.924 INFO kablam!   |               ^^^^ help: consider using `_rows` instead
Nov 02 15:49:50.924 INFO kablam! 
Nov 02 15:49:50.960 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
Nov 02 15:49:50.979 INFO kablam! su: No module specific data is present
Nov 02 15:49:51.424 INFO running `"docker" "rm" "-f" "9f1cbb8b541ea78586a25a052131409d6227a6b1e472afa5b549835f876144af"`
Nov 02 15:49:51.547 INFO blam! 9f1cbb8b541ea78586a25a052131409d6227a6b1e472afa5b549835f876144af