Dec 01 21:49:38.633 INFO testing chc4/minesweeper against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 01 21:49:38.634 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-4/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 01 21:49:39.042 INFO [stdout] 428ebc534c7faa36761c925f22a0759c411a8a3fcda9168058f717146ed2092e
Dec 01 21:49:39.050 INFO running `"docker" "start" "-a" "428ebc534c7faa36761c925f22a0759c411a8a3fcda9168058f717146ed2092e"`
Dec 01 21:49:40.062 INFO [stderr] usermod: no changes
Dec 01 21:49:40.133 INFO [stderr]    Compiling minesweeper v0.1.0 (/source)
Dec 01 21:49:40.744 INFO [stderr] warning: unused import: `std::io`
Dec 01 21:49:40.744 INFO [stderr]  --> src/main.rs:1:5
Dec 01 21:49:40.744 INFO [stderr]   |
Dec 01 21:49:40.744 INFO [stderr] 1 | use std::io;
Dec 01 21:49:40.744 INFO [stderr]   |     ^^^^^^^
Dec 01 21:49:40.744 INFO [stderr]   |
Dec 01 21:49:40.744 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 01 21:49:40.744 INFO [stderr] 
Dec 01 21:49:40.883 INFO [stderr] warning: unused variable: `stdin`
Dec 01 21:49:40.883 INFO [stderr]    --> src/main.rs:183:9
Dec 01 21:49:40.883 INFO [stderr]     |
Dec 01 21:49:40.883 INFO [stderr] 183 |     let stdin = std::io::stdin();
Dec 01 21:49:40.883 INFO [stderr]     |         ^^^^^ help: consider using `_stdin` instead
Dec 01 21:49:40.883 INFO [stderr]     |
Dec 01 21:49:40.883 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 01 21:49:40.883 INFO [stderr] 
Dec 01 21:49:40.883 INFO [stderr] warning: unused variable: `i`
Dec 01 21:49:40.883 INFO [stderr]   --> src/main.rs:56:13
Dec 01 21:49:40.883 INFO [stderr]    |
Dec 01 21:49:40.883 INFO [stderr] 56 |         for i in 0..y {
Dec 01 21:49:40.883 INFO [stderr]    |             ^ help: consider using `_i` instead
Dec 01 21:49:40.883 INFO [stderr] 
Dec 01 21:49:40.883 INFO [stderr] warning: unused variable: `j`
Dec 01 21:49:40.883 INFO [stderr]   --> src/main.rs:58:17
Dec 01 21:49:40.883 INFO [stderr]    |
Dec 01 21:49:40.883 INFO [stderr] 58 |             for j in 0..x {
Dec 01 21:49:40.883 INFO [stderr]    |                 ^ help: consider using `_j` instead
Dec 01 21:49:40.883 INFO [stderr] 
Dec 01 21:49:40.883 INFO [stderr] warning: unused variable: `count`
Dec 01 21:49:40.883 INFO [stderr]    --> src/main.rs:108:36
Dec 01 21:49:40.883 INFO [stderr]     |
Dec 01 21:49:40.883 INFO [stderr] 108 |         if let Slot::Empty(visible,count) = slot {
Dec 01 21:49:40.883 INFO [stderr]     |                                    ^^^^^ help: consider using `_count` instead
Dec 01 21:49:40.883 INFO [stderr] 
Dec 01 21:49:40.899 INFO [stderr] warning: variable does not need to be mutable
Dec 01 21:49:40.899 INFO [stderr]   --> src/main.rs:30:9
Dec 01 21:49:40.899 INFO [stderr]    |
Dec 01 21:49:40.899 INFO [stderr] 30 |     let mut stdin = std::io::stdin();
Dec 01 21:49:40.899 INFO [stderr]    |         ----^^^^^
Dec 01 21:49:40.899 INFO [stderr]    |         |
Dec 01 21:49:40.899 INFO [stderr]    |         help: remove this `mut`
Dec 01 21:49:40.899 INFO [stderr]    |
Dec 01 21:49:40.899 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 01 21:49:40.899 INFO [stderr] 
Dec 01 21:49:42.046 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.95s
Dec 01 21:49:42.050 INFO [stderr] su: No module specific data is present
Dec 01 21:49:42.716 INFO running `"docker" "inspect" "428ebc534c7faa36761c925f22a0759c411a8a3fcda9168058f717146ed2092e"`
Dec 01 21:49:43.025 INFO running `"docker" "rm" "-f" "428ebc534c7faa36761c925f22a0759c411a8a3fcda9168058f717146ed2092e"`
Dec 01 21:49:43.390 INFO [stdout] 428ebc534c7faa36761c925f22a0759c411a8a3fcda9168058f717146ed2092e
Dec 01 21:49:43.403 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-4/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 01 21:49:43.867 INFO [stdout] 5a1cc99577c1cfd0bb84bcc5875b284ee0d86fca0da4a9506b9399e17e062860
Dec 01 21:49:43.873 INFO running `"docker" "start" "-a" "5a1cc99577c1cfd0bb84bcc5875b284ee0d86fca0da4a9506b9399e17e062860"`
Dec 01 21:49:45.453 INFO [stderr] usermod: no changes
Dec 01 21:49:45.575 INFO [stderr]    Compiling minesweeper v0.1.0 (/source)
Dec 01 21:49:46.363 INFO [stderr] warning: unused import: `std::io`
Dec 01 21:49:46.363 INFO [stderr]  --> src/main.rs:1:5
Dec 01 21:49:46.363 INFO [stderr]   |
Dec 01 21:49:46.363 INFO [stderr] 1 | use std::io;
Dec 01 21:49:46.363 INFO [stderr]   |     ^^^^^^^
Dec 01 21:49:46.363 INFO [stderr]   |
Dec 01 21:49:46.363 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 01 21:49:46.363 INFO [stderr] 
Dec 01 21:49:46.515 INFO [stderr] warning: unused variable: `stdin`
Dec 01 21:49:46.515 INFO [stderr]    --> src/main.rs:183:9
Dec 01 21:49:46.515 INFO [stderr]     |
Dec 01 21:49:46.515 INFO [stderr] 183 |     let stdin = std::io::stdin();
Dec 01 21:49:46.515 INFO [stderr]     |         ^^^^^ help: consider using `_stdin` instead
Dec 01 21:49:46.515 INFO [stderr]     |
Dec 01 21:49:46.515 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 01 21:49:46.515 INFO [stderr] 
Dec 01 21:49:46.515 INFO [stderr] warning: unused variable: `i`
Dec 01 21:49:46.515 INFO [stderr]   --> src/main.rs:56:13
Dec 01 21:49:46.515 INFO [stderr]    |
Dec 01 21:49:46.515 INFO [stderr] 56 |         for i in 0..y {
Dec 01 21:49:46.515 INFO [stderr]    |             ^ help: consider using `_i` instead
Dec 01 21:49:46.515 INFO [stderr] 
Dec 01 21:49:46.515 INFO [stderr] warning: unused variable: `j`
Dec 01 21:49:46.515 INFO [stderr]   --> src/main.rs:58:17
Dec 01 21:49:46.515 INFO [stderr]    |
Dec 01 21:49:46.515 INFO [stderr] 58 |             for j in 0..x {
Dec 01 21:49:46.515 INFO [stderr]    |                 ^ help: consider using `_j` instead
Dec 01 21:49:46.515 INFO [stderr] 
Dec 01 21:49:46.515 INFO [stderr] warning: unused variable: `count`
Dec 01 21:49:46.515 INFO [stderr]    --> src/main.rs:108:36
Dec 01 21:49:46.515 INFO [stderr]     |
Dec 01 21:49:46.515 INFO [stderr] 108 |         if let Slot::Empty(visible,count) = slot {
Dec 01 21:49:46.515 INFO [stderr]     |                                    ^^^^^ help: consider using `_count` instead
Dec 01 21:49:46.515 INFO [stderr] 
Dec 01 21:49:46.515 INFO [stderr] warning: variable does not need to be mutable
Dec 01 21:49:46.515 INFO [stderr]   --> src/main.rs:30:9
Dec 01 21:49:46.515 INFO [stderr]    |
Dec 01 21:49:46.515 INFO [stderr] 30 |     let mut stdin = std::io::stdin();
Dec 01 21:49:46.515 INFO [stderr]    |         ----^^^^^
Dec 01 21:49:46.515 INFO [stderr]    |         |
Dec 01 21:49:46.515 INFO [stderr]    |         help: remove this `mut`
Dec 01 21:49:46.515 INFO [stderr]    |
Dec 01 21:49:46.515 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 01 21:49:46.515 INFO [stderr] 
Dec 01 21:49:47.182 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.67s
Dec 01 21:49:47.191 INFO [stderr] su: No module specific data is present
Dec 01 21:49:48.272 INFO running `"docker" "inspect" "5a1cc99577c1cfd0bb84bcc5875b284ee0d86fca0da4a9506b9399e17e062860"`
Dec 01 21:49:48.640 INFO running `"docker" "rm" "-f" "5a1cc99577c1cfd0bb84bcc5875b284ee0d86fca0da4a9506b9399e17e062860"`
Dec 01 21:49:48.930 INFO [stdout] 5a1cc99577c1cfd0bb84bcc5875b284ee0d86fca0da4a9506b9399e17e062860
Dec 01 21:49:48.937 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-4/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 01 21:49:49.332 INFO [stdout] 6746e3317ef838c2a1b6ff2f9d0bea4ec5607c770c0fa943f3247ebec37d72c3
Dec 01 21:49:49.336 INFO running `"docker" "start" "-a" "6746e3317ef838c2a1b6ff2f9d0bea4ec5607c770c0fa943f3247ebec37d72c3"`
Dec 01 21:49:50.667 INFO [stderr] usermod: no changes
Dec 01 21:49:50.745 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
Dec 01 21:49:50.749 INFO [stderr]      Running /target/debug/deps/minesweeper-353f07349a5921d0
Dec 01 21:49:50.795 INFO [stderr] su: No module specific data is present
Dec 01 21:49:50.795 INFO [stdout] 
Dec 01 21:49:50.795 INFO [stdout] running 0 tests
Dec 01 21:49:50.795 INFO [stdout] 
Dec 01 21:49:50.795 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 01 21:49:50.795 INFO [stdout] 
Dec 01 21:49:51.401 INFO running `"docker" "inspect" "6746e3317ef838c2a1b6ff2f9d0bea4ec5607c770c0fa943f3247ebec37d72c3"`
Dec 01 21:49:51.701 INFO running `"docker" "rm" "-f" "6746e3317ef838c2a1b6ff2f9d0bea4ec5607c770c0fa943f3247ebec37d72c3"`
Dec 01 21:49:52.073 INFO [stdout] 6746e3317ef838c2a1b6ff2f9d0bea4ec5607c770c0fa943f3247ebec37d72c3
