Dec 04 20:04:38.163 INFO checking ddefrenne/battleship against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 20:04:38.164 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-7/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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"`
Dec 04 20:04:38.379 INFO [stdout] a34971d3d1d23b3c5cf8e818ba007a65dc5c1ddb11193f2b50cc10e6772e5cab
Dec 04 20:04:38.381 INFO running `"docker" "start" "-a" "a34971d3d1d23b3c5cf8e818ba007a65dc5c1ddb11193f2b50cc10e6772e5cab"`
Dec 04 20:04:38.882 INFO [stderr] usermod: no changes
Dec 04 20:04:38.911 INFO [stderr]     Checking battleship v0.1.0 (/source)
Dec 04 20:04:39.175 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 04 20:04:39.175 INFO [stderr]   --> src/main.rs:19:19
Dec 04 20:04:39.175 INFO [stderr]    |
Dec 04 20:04:39.175 INFO [stderr] 19 |     for column in (1..amount_of_columns + 1) {
Dec 04 20:04:39.175 INFO [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 04 20:04:39.175 INFO [stderr]    |
Dec 04 20:04:39.175 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 04 20:04:39.175 INFO [stderr] 
Dec 04 20:04:39.205 INFO [stderr] warning: unused variable: `grid`
Dec 04 20:04:39.205 INFO [stderr]  --> src/main.rs:5:9
Dec 04 20:04:39.205 INFO [stderr]   |
Dec 04 20:04:39.205 INFO [stderr] 5 |     let grid = build_grid(&rows, amount_of_columns);
Dec 04 20:04:39.205 INFO [stderr]   |         ^^^^ help: consider using `_grid` instead
Dec 04 20:04:39.205 INFO [stderr]   |
Dec 04 20:04:39.205 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 04 20:04:39.205 INFO [stderr] 
Dec 04 20:04:39.205 INFO [stderr] warning: unused variable: `rows`
Dec 04 20:04:39.205 INFO [stderr]  --> src/main.rs:8:15
Dec 04 20:04:39.205 INFO [stderr]   |
Dec 04 20:04:39.205 INFO [stderr] 8 | fn build_grid(rows: &[char; 10], amount_of_columns: i32) {
Dec 04 20:04:39.205 INFO [stderr]   |               ^^^^ help: consider using `_rows` instead
Dec 04 20:04:39.205 INFO [stderr] 
Dec 04 20:04:39.224 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 04 20:04:39.224 INFO [stderr]   --> src/main.rs:19:19
Dec 04 20:04:39.224 INFO [stderr]    |
Dec 04 20:04:39.224 INFO [stderr] 19 |     for column in (1..amount_of_columns + 1) {
Dec 04 20:04:39.224 INFO [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 04 20:04:39.224 INFO [stderr]    |
Dec 04 20:04:39.224 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 04 20:04:39.224 INFO [stderr] 
Dec 04 20:04:39.248 INFO [stderr] warning: unused variable: `grid`
Dec 04 20:04:39.248 INFO [stderr]  --> src/main.rs:5:9
Dec 04 20:04:39.248 INFO [stderr]   |
Dec 04 20:04:39.248 INFO [stderr] 5 |     let grid = build_grid(&rows, amount_of_columns);
Dec 04 20:04:39.248 INFO [stderr]   |         ^^^^ help: consider using `_grid` instead
Dec 04 20:04:39.248 INFO [stderr]   |
Dec 04 20:04:39.248 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 04 20:04:39.248 INFO [stderr] 
Dec 04 20:04:39.248 INFO [stderr] warning: unused variable: `rows`
Dec 04 20:04:39.248 INFO [stderr]  --> src/main.rs:8:15
Dec 04 20:04:39.248 INFO [stderr]   |
Dec 04 20:04:39.248 INFO [stderr] 8 | fn build_grid(rows: &[char; 10], amount_of_columns: i32) {
Dec 04 20:04:39.248 INFO [stderr]   |               ^^^^ help: consider using `_rows` instead
Dec 04 20:04:39.248 INFO [stderr] 
Dec 04 20:04:39.270 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
Dec 04 20:04:39.272 INFO [stderr] su: No module specific data is present
Dec 04 20:04:39.532 INFO running `"docker" "inspect" "a34971d3d1d23b3c5cf8e818ba007a65dc5c1ddb11193f2b50cc10e6772e5cab"`
Dec 04 20:04:39.634 INFO running `"docker" "rm" "-f" "a34971d3d1d23b3c5cf8e818ba007a65dc5c1ddb11193f2b50cc10e6772e5cab"`
Dec 04 20:04:39.717 INFO [stdout] a34971d3d1d23b3c5cf8e818ba007a65dc5c1ddb11193f2b50cc10e6772e5cab