Dec 13 23:53:24.983 INFO testing chc4/minesweeper against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 13 23:53:24.983 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt build --frozen" "-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 13 23:53:25.534 INFO [stdout] b87a890ca733ea57473add3ca1697dba8f41e8439a075a4436bb8c72468cf185
Dec 13 23:53:25.540 INFO running `"docker" "start" "-a" "b87a890ca733ea57473add3ca1697dba8f41e8439a075a4436bb8c72468cf185"`
Dec 13 23:53:26.623 INFO [stderr] usermod: no changes
Dec 13 23:53:26.747 INFO [stderr]    Compiling minesweeper v0.1.0 (/source)
Dec 13 23:53:27.300 INFO [stderr] warning: unused import: `std::io`
Dec 13 23:53:27.301 INFO [stderr]  --> src/main.rs:1:5
Dec 13 23:53:27.301 INFO [stderr]   |
Dec 13 23:53:27.301 INFO [stderr] 1 | use std::io;
Dec 13 23:53:27.301 INFO [stderr]   |     ^^^^^^^
Dec 13 23:53:27.301 INFO [stderr]   |
Dec 13 23:53:27.301 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 13 23:53:27.301 INFO [stderr] 
Dec 13 23:53:27.423 INFO [stderr] warning: unused variable: `stdin`
Dec 13 23:53:27.423 INFO [stderr]    --> src/main.rs:183:9
Dec 13 23:53:27.423 INFO [stderr]     |
Dec 13 23:53:27.423 INFO [stderr] 183 |     let stdin = std::io::stdin();
Dec 13 23:53:27.423 INFO [stderr]     |         ^^^^^ help: consider using `_stdin` instead
Dec 13 23:53:27.423 INFO [stderr]     |
Dec 13 23:53:27.423 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 13 23:53:27.423 INFO [stderr] 
Dec 13 23:53:27.423 INFO [stderr] warning: unused variable: `i`
Dec 13 23:53:27.423 INFO [stderr]   --> src/main.rs:56:13
Dec 13 23:53:27.423 INFO [stderr]    |
Dec 13 23:53:27.423 INFO [stderr] 56 |         for i in 0..y {
Dec 13 23:53:27.423 INFO [stderr]    |             ^ help: consider using `_i` instead
Dec 13 23:53:27.423 INFO [stderr] 
Dec 13 23:53:27.423 INFO [stderr] warning: unused variable: `j`
Dec 13 23:53:27.423 INFO [stderr]   --> src/main.rs:58:17
Dec 13 23:53:27.423 INFO [stderr]    |
Dec 13 23:53:27.423 INFO [stderr] 58 |             for j in 0..x {
Dec 13 23:53:27.423 INFO [stderr]    |                 ^ help: consider using `_j` instead
Dec 13 23:53:27.423 INFO [stderr] 
Dec 13 23:53:27.423 INFO [stderr] warning: unused variable: `count`
Dec 13 23:53:27.423 INFO [stderr]    --> src/main.rs:108:36
Dec 13 23:53:27.423 INFO [stderr]     |
Dec 13 23:53:27.423 INFO [stderr] 108 |         if let Slot::Empty(visible,count) = slot {
Dec 13 23:53:27.423 INFO [stderr]     |                                    ^^^^^ help: consider using `_count` instead
Dec 13 23:53:27.423 INFO [stderr] 
Dec 13 23:53:27.427 INFO [stderr] warning: variable does not need to be mutable
Dec 13 23:53:27.427 INFO [stderr]   --> src/main.rs:30:9
Dec 13 23:53:27.427 INFO [stderr]    |
Dec 13 23:53:27.427 INFO [stderr] 30 |     let mut stdin = std::io::stdin();
Dec 13 23:53:27.427 INFO [stderr]    |         ----^^^^^
Dec 13 23:53:27.427 INFO [stderr]    |         |
Dec 13 23:53:27.427 INFO [stderr]    |         help: remove this `mut`
Dec 13 23:53:27.427 INFO [stderr]    |
Dec 13 23:53:27.427 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 13 23:53:27.427 INFO [stderr] 
Dec 13 23:53:28.835 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.18s
Dec 13 23:53:28.839 INFO [stderr] su: No module specific data is present
Dec 13 23:53:29.341 INFO running `"docker" "inspect" "b87a890ca733ea57473add3ca1697dba8f41e8439a075a4436bb8c72468cf185"`
Dec 13 23:53:29.607 INFO running `"docker" "rm" "-f" "b87a890ca733ea57473add3ca1697dba8f41e8439a075a4436bb8c72468cf185"`
Dec 13 23:53:29.891 INFO [stdout] b87a890ca733ea57473add3ca1697dba8f41e8439a075a4436bb8c72468cf185
Dec 13 23:53:29.899 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt test --frozen --no-run" "-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 13 23:53:30.469 INFO [stdout] 8ad19fe467eac2fcc9d0c4d58af36ad90ecbb4dd4fd607bff6d91519d1f827ff
Dec 13 23:53:30.471 INFO running `"docker" "start" "-a" "8ad19fe467eac2fcc9d0c4d58af36ad90ecbb4dd4fd607bff6d91519d1f827ff"`
Dec 13 23:53:31.734 INFO [stderr] usermod: no changes
Dec 13 23:53:31.795 INFO [stderr]    Compiling minesweeper v0.1.0 (/source)
Dec 13 23:53:32.427 INFO [stderr] warning: unused import: `std::io`
Dec 13 23:53:32.427 INFO [stderr]  --> src/main.rs:1:5
Dec 13 23:53:32.427 INFO [stderr]   |
Dec 13 23:53:32.427 INFO [stderr] 1 | use std::io;
Dec 13 23:53:32.427 INFO [stderr]   |     ^^^^^^^
Dec 13 23:53:32.427 INFO [stderr]   |
Dec 13 23:53:32.427 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 13 23:53:32.427 INFO [stderr] 
Dec 13 23:53:32.536 INFO [stderr] warning: unused variable: `stdin`
Dec 13 23:53:32.536 INFO [stderr]    --> src/main.rs:183:9
Dec 13 23:53:32.536 INFO [stderr]     |
Dec 13 23:53:32.536 INFO [stderr] 183 |     let stdin = std::io::stdin();
Dec 13 23:53:32.536 INFO [stderr]     |         ^^^^^ help: consider using `_stdin` instead
Dec 13 23:53:32.536 INFO [stderr]     |
Dec 13 23:53:32.536 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 13 23:53:32.536 INFO [stderr] 
Dec 13 23:53:32.536 INFO [stderr] warning: unused variable: `i`
Dec 13 23:53:32.536 INFO [stderr]   --> src/main.rs:56:13
Dec 13 23:53:32.536 INFO [stderr]    |
Dec 13 23:53:32.536 INFO [stderr] 56 |         for i in 0..y {
Dec 13 23:53:32.536 INFO [stderr]    |             ^ help: consider using `_i` instead
Dec 13 23:53:32.536 INFO [stderr] 
Dec 13 23:53:32.536 INFO [stderr] warning: unused variable: `j`
Dec 13 23:53:32.536 INFO [stderr]   --> src/main.rs:58:17
Dec 13 23:53:32.536 INFO [stderr]    |
Dec 13 23:53:32.536 INFO [stderr] 58 |             for j in 0..x {
Dec 13 23:53:32.536 INFO [stderr]    |                 ^ help: consider using `_j` instead
Dec 13 23:53:32.536 INFO [stderr] 
Dec 13 23:53:32.536 INFO [stderr] warning: unused variable: `count`
Dec 13 23:53:32.536 INFO [stderr]    --> src/main.rs:108:36
Dec 13 23:53:32.536 INFO [stderr]     |
Dec 13 23:53:32.536 INFO [stderr] 108 |         if let Slot::Empty(visible,count) = slot {
Dec 13 23:53:32.536 INFO [stderr]     |                                    ^^^^^ help: consider using `_count` instead
Dec 13 23:53:32.536 INFO [stderr] 
Dec 13 23:53:32.547 INFO [stderr] warning: variable does not need to be mutable
Dec 13 23:53:32.547 INFO [stderr]   --> src/main.rs:30:9
Dec 13 23:53:32.547 INFO [stderr]    |
Dec 13 23:53:32.547 INFO [stderr] 30 |     let mut stdin = std::io::stdin();
Dec 13 23:53:32.547 INFO [stderr]    |         ----^^^^^
Dec 13 23:53:32.547 INFO [stderr]    |         |
Dec 13 23:53:32.547 INFO [stderr]    |         help: remove this `mut`
Dec 13 23:53:32.547 INFO [stderr]    |
Dec 13 23:53:32.547 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 13 23:53:32.547 INFO [stderr] 
Dec 13 23:53:32.967 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.20s
Dec 13 23:53:32.967 INFO [stderr] su: No module specific data is present
Dec 13 23:53:33.995 INFO running `"docker" "inspect" "8ad19fe467eac2fcc9d0c4d58af36ad90ecbb4dd4fd607bff6d91519d1f827ff"`
Dec 13 23:53:34.360 INFO running `"docker" "rm" "-f" "8ad19fe467eac2fcc9d0c4d58af36ad90ecbb4dd4fd607bff6d91519d1f827ff"`
Dec 13 23:53:34.623 INFO [stdout] 8ad19fe467eac2fcc9d0c4d58af36ad90ecbb4dd4fd607bff6d91519d1f827ff
Dec 13 23:53:34.623 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt test --frozen" "-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 13 23:53:35.105 INFO [stdout] d2b87ff9627ed0eac59279c9286daa2277a9d7126d4d1fdfe8719fa37093742f
Dec 13 23:53:35.109 INFO running `"docker" "start" "-a" "d2b87ff9627ed0eac59279c9286daa2277a9d7126d4d1fdfe8719fa37093742f"`
Dec 13 23:53:36.681 INFO [stderr] usermod: no changes
Dec 13 23:53:36.775 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
Dec 13 23:53:36.775 INFO [stderr]      Running /target/debug/deps/minesweeper-ade19be7f2085676
Dec 13 23:53:36.850 INFO [stdout] 
Dec 13 23:53:36.850 INFO [stdout] running 0 tests
Dec 13 23:53:36.850 INFO [stdout] 
Dec 13 23:53:36.850 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 23:53:36.851 INFO [stdout] 
Dec 13 23:53:36.851 INFO [stderr] su: No module specific data is present
Dec 13 23:53:37.703 INFO running `"docker" "inspect" "d2b87ff9627ed0eac59279c9286daa2277a9d7126d4d1fdfe8719fa37093742f"`
Dec 13 23:53:38.088 INFO running `"docker" "rm" "-f" "d2b87ff9627ed0eac59279c9286daa2277a9d7126d4d1fdfe8719fa37093742f"`
Dec 13 23:53:38.396 INFO [stdout] d2b87ff9627ed0eac59279c9286daa2277a9d7126d4d1fdfe8719fa37093742f