Dec 06 04:02:47.535 INFO testing chc4/minesweeper against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 06 04:02:47.536 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-6/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 06 04:02:47.913 INFO [stdout] 5960d07393dd7bb677689ea0c5b0e2ffba639b7ad115b9d7da965af2e04222ea
Dec 06 04:02:47.915 INFO running `"docker" "start" "-a" "5960d07393dd7bb677689ea0c5b0e2ffba639b7ad115b9d7da965af2e04222ea"`
Dec 06 04:02:49.295 INFO [stderr] usermod: no changes
Dec 06 04:02:49.408 INFO [stderr]    Compiling minesweeper v0.1.0 (/source)
Dec 06 04:02:49.876 INFO [stderr] warning: unused import: `std::io`
Dec 06 04:02:49.876 INFO [stderr]  --> src/main.rs:1:5
Dec 06 04:02:49.876 INFO [stderr]   |
Dec 06 04:02:49.876 INFO [stderr] 1 | use std::io;
Dec 06 04:02:49.876 INFO [stderr]   |     ^^^^^^^
Dec 06 04:02:49.876 INFO [stderr]   |
Dec 06 04:02:49.876 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 06 04:02:49.876 INFO [stderr] 
Dec 06 04:02:49.975 INFO [stderr] warning: unused variable: `stdin`
Dec 06 04:02:49.975 INFO [stderr]    --> src/main.rs:183:9
Dec 06 04:02:49.975 INFO [stderr]     |
Dec 06 04:02:49.976 INFO [stderr] 183 |     let stdin = std::io::stdin();
Dec 06 04:02:49.976 INFO [stderr]     |         ^^^^^ help: consider using `_stdin` instead
Dec 06 04:02:49.976 INFO [stderr]     |
Dec 06 04:02:49.976 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 06 04:02:49.976 INFO [stderr] 
Dec 06 04:02:49.976 INFO [stderr] warning: unused variable: `i`
Dec 06 04:02:49.976 INFO [stderr]   --> src/main.rs:56:13
Dec 06 04:02:49.976 INFO [stderr]    |
Dec 06 04:02:49.976 INFO [stderr] 56 |         for i in 0..y {
Dec 06 04:02:49.976 INFO [stderr]    |             ^ help: consider using `_i` instead
Dec 06 04:02:49.976 INFO [stderr] 
Dec 06 04:02:49.976 INFO [stderr] warning: unused variable: `j`
Dec 06 04:02:49.976 INFO [stderr]   --> src/main.rs:58:17
Dec 06 04:02:49.976 INFO [stderr]    |
Dec 06 04:02:49.976 INFO [stderr] 58 |             for j in 0..x {
Dec 06 04:02:49.976 INFO [stderr]    |                 ^ help: consider using `_j` instead
Dec 06 04:02:49.976 INFO [stderr] 
Dec 06 04:02:49.980 INFO [stderr] warning: unused variable: `count`
Dec 06 04:02:49.980 INFO [stderr]    --> src/main.rs:108:36
Dec 06 04:02:49.980 INFO [stderr]     |
Dec 06 04:02:49.980 INFO [stderr] 108 |         if let Slot::Empty(visible,count) = slot {
Dec 06 04:02:49.980 INFO [stderr]     |                                    ^^^^^ help: consider using `_count` instead
Dec 06 04:02:49.980 INFO [stderr] 
Dec 06 04:02:49.981 INFO [stderr] warning: variable does not need to be mutable
Dec 06 04:02:49.981 INFO [stderr]   --> src/main.rs:30:9
Dec 06 04:02:49.982 INFO [stderr]    |
Dec 06 04:02:49.982 INFO [stderr] 30 |     let mut stdin = std::io::stdin();
Dec 06 04:02:49.982 INFO [stderr]    |         ----^^^^^
Dec 06 04:02:49.982 INFO [stderr]    |         |
Dec 06 04:02:49.982 INFO [stderr]    |         help: remove this `mut`
Dec 06 04:02:49.982 INFO [stderr]    |
Dec 06 04:02:49.982 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 06 04:02:49.982 INFO [stderr] 
Dec 06 04:02:51.056 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.73s
Dec 06 04:02:51.064 INFO [stderr] su: No module specific data is present
Dec 06 04:02:51.929 INFO running `"docker" "inspect" "5960d07393dd7bb677689ea0c5b0e2ffba639b7ad115b9d7da965af2e04222ea"`
Dec 06 04:02:52.202 INFO running `"docker" "rm" "-f" "5960d07393dd7bb677689ea0c5b0e2ffba639b7ad115b9d7da965af2e04222ea"`
Dec 06 04:02:52.444 INFO [stdout] 5960d07393dd7bb677689ea0c5b0e2ffba639b7ad115b9d7da965af2e04222ea
Dec 06 04:02:52.452 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-6/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 06 04:02:53.104 INFO [stdout] 4cc3c024766f7f28d6618d51fc0ae774d57f7f567a3f2f39c24e2baf40b1044a
Dec 06 04:02:53.106 INFO running `"docker" "start" "-a" "4cc3c024766f7f28d6618d51fc0ae774d57f7f567a3f2f39c24e2baf40b1044a"`
Dec 06 04:02:54.688 INFO [stderr] usermod: no changes
Dec 06 04:02:54.786 INFO [stderr]    Compiling minesweeper v0.1.0 (/source)
Dec 06 04:02:55.344 INFO [stderr] warning: unused import: `std::io`
Dec 06 04:02:55.344 INFO [stderr]  --> src/main.rs:1:5
Dec 06 04:02:55.344 INFO [stderr]   |
Dec 06 04:02:55.344 INFO [stderr] 1 | use std::io;
Dec 06 04:02:55.344 INFO [stderr]   |     ^^^^^^^
Dec 06 04:02:55.344 INFO [stderr]   |
Dec 06 04:02:55.344 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 06 04:02:55.344 INFO [stderr] 
Dec 06 04:02:55.436 INFO [stderr] warning: unused variable: `stdin`
Dec 06 04:02:55.436 INFO [stderr]    --> src/main.rs:183:9
Dec 06 04:02:55.436 INFO [stderr]     |
Dec 06 04:02:55.436 INFO [stderr] 183 |     let stdin = std::io::stdin();
Dec 06 04:02:55.436 INFO [stderr]     |         ^^^^^ help: consider using `_stdin` instead
Dec 06 04:02:55.436 INFO [stderr]     |
Dec 06 04:02:55.436 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 06 04:02:55.436 INFO [stderr] 
Dec 06 04:02:55.436 INFO [stderr] warning: unused variable: `i`
Dec 06 04:02:55.436 INFO [stderr]   --> src/main.rs:56:13
Dec 06 04:02:55.436 INFO [stderr]    |
Dec 06 04:02:55.436 INFO [stderr] 56 |         for i in 0..y {
Dec 06 04:02:55.436 INFO [stderr]    |             ^ help: consider using `_i` instead
Dec 06 04:02:55.436 INFO [stderr] 
Dec 06 04:02:55.436 INFO [stderr] warning: unused variable: `j`
Dec 06 04:02:55.436 INFO [stderr]   --> src/main.rs:58:17
Dec 06 04:02:55.436 INFO [stderr]    |
Dec 06 04:02:55.436 INFO [stderr] 58 |             for j in 0..x {
Dec 06 04:02:55.436 INFO [stderr]    |                 ^ help: consider using `_j` instead
Dec 06 04:02:55.436 INFO [stderr] 
Dec 06 04:02:55.436 INFO [stderr] warning: unused variable: `count`
Dec 06 04:02:55.436 INFO [stderr]    --> src/main.rs:108:36
Dec 06 04:02:55.436 INFO [stderr]     |
Dec 06 04:02:55.436 INFO [stderr] 108 |         if let Slot::Empty(visible,count) = slot {
Dec 06 04:02:55.436 INFO [stderr]     |                                    ^^^^^ help: consider using `_count` instead
Dec 06 04:02:55.436 INFO [stderr] 
Dec 06 04:02:55.444 INFO [stderr] warning: variable does not need to be mutable
Dec 06 04:02:55.444 INFO [stderr]   --> src/main.rs:30:9
Dec 06 04:02:55.444 INFO [stderr]    |
Dec 06 04:02:55.444 INFO [stderr] 30 |     let mut stdin = std::io::stdin();
Dec 06 04:02:55.444 INFO [stderr]    |         ----^^^^^
Dec 06 04:02:55.444 INFO [stderr]    |         |
Dec 06 04:02:55.444 INFO [stderr]    |         help: remove this `mut`
Dec 06 04:02:55.444 INFO [stderr]    |
Dec 06 04:02:55.444 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 06 04:02:55.444 INFO [stderr] 
Dec 06 04:02:55.816 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.09s
Dec 06 04:02:55.833 INFO [stderr] su: No module specific data is present
Dec 06 04:02:56.893 INFO running `"docker" "inspect" "4cc3c024766f7f28d6618d51fc0ae774d57f7f567a3f2f39c24e2baf40b1044a"`
Dec 06 04:02:57.102 INFO running `"docker" "rm" "-f" "4cc3c024766f7f28d6618d51fc0ae774d57f7f567a3f2f39c24e2baf40b1044a"`
Dec 06 04:02:57.392 INFO [stdout] 4cc3c024766f7f28d6618d51fc0ae774d57f7f567a3f2f39c24e2baf40b1044a
Dec 06 04:02:57.398 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-6/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 06 04:02:57.816 INFO [stdout] d84ae879fef1b525e83dc8b3257a31fe8a85a7e1aba11fb9d2e1d959962dd792
Dec 06 04:02:57.822 INFO running `"docker" "start" "-a" "d84ae879fef1b525e83dc8b3257a31fe8a85a7e1aba11fb9d2e1d959962dd792"`
Dec 06 04:02:59.040 INFO [stderr] usermod: no changes
Dec 06 04:02:59.120 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
Dec 06 04:02:59.128 INFO [stderr]      Running /target/debug/deps/minesweeper-bb81eb34d328c19d
Dec 06 04:02:59.130 INFO [stdout] 
Dec 06 04:02:59.130 INFO [stdout] running 0 tests
Dec 06 04:02:59.130 INFO [stdout] 
Dec 06 04:02:59.130 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 04:02:59.130 INFO [stdout] 
Dec 06 04:02:59.132 INFO [stderr] su: No module specific data is present
Dec 06 04:02:59.714 INFO running `"docker" "inspect" "d84ae879fef1b525e83dc8b3257a31fe8a85a7e1aba11fb9d2e1d959962dd792"`
Dec 06 04:02:59.926 INFO running `"docker" "rm" "-f" "d84ae879fef1b525e83dc8b3257a31fe8a85a7e1aba11fb9d2e1d959962dd792"`
Dec 06 04:03:00.175 INFO [stdout] d84ae879fef1b525e83dc8b3257a31fe8a85a7e1aba11fb9d2e1d959962dd792