Nov 30 04:23:49.191 INFO checking ddefrenne/battleship against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 30 04:23:49.191 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-7/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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 30 04:23:49.365 INFO [stdout] e857ed29f41942731fc44bd3d2d4813db1f197b5888d4b9265f933d18e158a2e
Nov 30 04:23:49.367 INFO running `"docker" "start" "-a" "e857ed29f41942731fc44bd3d2d4813db1f197b5888d4b9265f933d18e158a2e"`
Nov 30 04:23:49.742 INFO [stderr] usermod: no changes
Nov 30 04:23:49.775 INFO [stderr]     Checking battleship v0.1.0 (/source)
Nov 30 04:23:50.072 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Nov 30 04:23:50.072 INFO [stderr]   --> src/main.rs:19:19
Nov 30 04:23:50.072 INFO [stderr]    |
Nov 30 04:23:50.072 INFO [stderr] 19 |     for column in (1..amount_of_columns + 1) {
Nov 30 04:23:50.072 INFO [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 30 04:23:50.072 INFO [stderr]    |
Nov 30 04:23:50.072 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Nov 30 04:23:50.072 INFO [stderr] 
Nov 30 04:23:50.075 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Nov 30 04:23:50.075 INFO [stderr]   --> src/main.rs:19:19
Nov 30 04:23:50.075 INFO [stderr]    |
Nov 30 04:23:50.075 INFO [stderr] 19 |     for column in (1..amount_of_columns + 1) {
Nov 30 04:23:50.075 INFO [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 30 04:23:50.075 INFO [stderr]    |
Nov 30 04:23:50.076 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Nov 30 04:23:50.076 INFO [stderr] 
Nov 30 04:23:50.096 INFO [stderr] warning: unused variable: `grid`
Nov 30 04:23:50.096 INFO [stderr]  --> src/main.rs:5:9
Nov 30 04:23:50.096 INFO [stderr]   |
Nov 30 04:23:50.096 INFO [stderr] 5 |     let grid = build_grid(&rows, amount_of_columns);
Nov 30 04:23:50.096 INFO [stderr]   |         ^^^^ help: consider using `_grid` instead
Nov 30 04:23:50.096 INFO [stderr]   |
Nov 30 04:23:50.096 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 30 04:23:50.096 INFO [stderr] 
Nov 30 04:23:50.096 INFO [stderr] warning: unused variable: `rows`
Nov 30 04:23:50.096 INFO [stderr]  --> src/main.rs:8:15
Nov 30 04:23:50.096 INFO [stderr]   |
Nov 30 04:23:50.096 INFO [stderr] 8 | fn build_grid(rows: &[char; 10], amount_of_columns: i32) {
Nov 30 04:23:50.096 INFO [stderr]   |               ^^^^ help: consider using `_rows` instead
Nov 30 04:23:50.096 INFO [stderr] 
Nov 30 04:23:50.120 INFO [stderr] warning: unused variable: `grid`
Nov 30 04:23:50.120 INFO [stderr]  --> src/main.rs:5:9
Nov 30 04:23:50.120 INFO [stderr]   |
Nov 30 04:23:50.120 INFO [stderr] 5 |     let grid = build_grid(&rows, amount_of_columns);
Nov 30 04:23:50.120 INFO [stderr]   |         ^^^^ help: consider using `_grid` instead
Nov 30 04:23:50.120 INFO [stderr]   |
Nov 30 04:23:50.120 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 30 04:23:50.120 INFO [stderr] 
Nov 30 04:23:50.120 INFO [stderr] warning: unused variable: `rows`
Nov 30 04:23:50.120 INFO [stderr]  --> src/main.rs:8:15
Nov 30 04:23:50.120 INFO [stderr]   |
Nov 30 04:23:50.120 INFO [stderr] 8 | fn build_grid(rows: &[char; 10], amount_of_columns: i32) {
Nov 30 04:23:50.120 INFO [stderr]   |               ^^^^ help: consider using `_rows` instead
Nov 30 04:23:50.120 INFO [stderr] 
Nov 30 04:23:50.153 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
Nov 30 04:23:50.153 INFO [stderr] su: No module specific data is present
Nov 30 04:23:50.474 INFO running `"docker" "inspect" "e857ed29f41942731fc44bd3d2d4813db1f197b5888d4b9265f933d18e158a2e"`
Nov 30 04:23:50.698 INFO running `"docker" "rm" "-f" "e857ed29f41942731fc44bd3d2d4813db1f197b5888d4b9265f933d18e158a2e"`
Nov 30 04:23:50.932 INFO [stdout] e857ed29f41942731fc44bd3d2d4813db1f197b5888d4b9265f933d18e158a2e