Dec 13 02:56:51.968 INFO testing slavovojacek/8QP_rust against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 13 02:56:51.968 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 02:56:52.616 INFO [stdout] bd43fc98d9b6ecc5959605ed1d7f4ac1f1bc8ccd70b9dd8d918a245cec0c82ae
Dec 13 02:56:52.627 INFO running `"docker" "start" "-a" "bd43fc98d9b6ecc5959605ed1d7f4ac1f1bc8ccd70b9dd8d918a245cec0c82ae"`
Dec 13 02:56:53.680 INFO [stderr] usermod: no changes
Dec 13 02:56:53.771 INFO [stderr]    Compiling eight_queen_problem v0.1.0 (/source)
Dec 13 02:56:54.155 INFO [stderr] warning: value assigned to `empty_squares` is never read
Dec 13 02:56:54.155 INFO [stderr]   --> src/main.rs:20:13
Dec 13 02:56:54.155 INFO [stderr]    |
Dec 13 02:56:54.155 INFO [stderr] 20 |     let mut empty_squares: Vec<Position> = Vec::new();
Dec 13 02:56:54.155 INFO [stderr]    |             ^^^^^^^^^^^^^
Dec 13 02:56:54.155 INFO [stderr]    |
Dec 13 02:56:54.155 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 13 02:56:54.155 INFO [stderr] 
Dec 13 02:56:54.155 INFO [stderr] warning: unused variable: `r`
Dec 13 02:56:54.155 INFO [stderr]    --> src/main.rs:113:33
Dec 13 02:56:54.155 INFO [stderr]     |
Dec 13 02:56:54.155 INFO [stderr] 113 | fn fill_col(board: &mut Board, (r, c): Position) -> Result<(), Position> {
Dec 13 02:56:54.155 INFO [stderr]     |                                 ^ help: consider using `_r` instead
Dec 13 02:56:54.155 INFO [stderr]     |
Dec 13 02:56:54.155 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 13 02:56:54.155 INFO [stderr] 
Dec 13 02:56:55.036 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.33s
Dec 13 02:56:55.039 INFO [stderr] su: No module specific data is present
Dec 13 02:56:55.700 INFO running `"docker" "inspect" "bd43fc98d9b6ecc5959605ed1d7f4ac1f1bc8ccd70b9dd8d918a245cec0c82ae"`
Dec 13 02:56:55.999 INFO running `"docker" "rm" "-f" "bd43fc98d9b6ecc5959605ed1d7f4ac1f1bc8ccd70b9dd8d918a245cec0c82ae"`
Dec 13 02:56:56.287 INFO [stdout] bd43fc98d9b6ecc5959605ed1d7f4ac1f1bc8ccd70b9dd8d918a245cec0c82ae
Dec 13 02:56:56.293 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 02:56:56.845 INFO [stdout] f76199513dcdfe09ab609233d6979e12e565b3ea13b9909049dbcec86538bb3f
Dec 13 02:56:56.849 INFO running `"docker" "start" "-a" "f76199513dcdfe09ab609233d6979e12e565b3ea13b9909049dbcec86538bb3f"`
Dec 13 02:56:58.195 INFO [stderr] usermod: no changes
Dec 13 02:56:58.291 INFO [stderr]    Compiling eight_queen_problem v0.1.0 (/source)
Dec 13 02:56:58.843 INFO [stderr] warning: value assigned to `empty_squares` is never read
Dec 13 02:56:58.843 INFO [stderr]   --> src/main.rs:20:13
Dec 13 02:56:58.843 INFO [stderr]    |
Dec 13 02:56:58.843 INFO [stderr] 20 |     let mut empty_squares: Vec<Position> = Vec::new();
Dec 13 02:56:58.843 INFO [stderr]    |             ^^^^^^^^^^^^^
Dec 13 02:56:58.843 INFO [stderr]    |
Dec 13 02:56:58.843 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 13 02:56:58.843 INFO [stderr] 
Dec 13 02:56:58.843 INFO [stderr] warning: unused variable: `r`
Dec 13 02:56:58.843 INFO [stderr]    --> src/main.rs:113:33
Dec 13 02:56:58.843 INFO [stderr]     |
Dec 13 02:56:58.843 INFO [stderr] 113 | fn fill_col(board: &mut Board, (r, c): Position) -> Result<(), Position> {
Dec 13 02:56:58.843 INFO [stderr]     |                                 ^ help: consider using `_r` instead
Dec 13 02:56:58.843 INFO [stderr]     |
Dec 13 02:56:58.843 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 13 02:56:58.843 INFO [stderr] 
Dec 13 02:56:59.231 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.02s
Dec 13 02:56:59.235 INFO [stderr] su: No module specific data is present
Dec 13 02:57:00.420 INFO running `"docker" "inspect" "f76199513dcdfe09ab609233d6979e12e565b3ea13b9909049dbcec86538bb3f"`
Dec 13 02:57:00.803 INFO running `"docker" "rm" "-f" "f76199513dcdfe09ab609233d6979e12e565b3ea13b9909049dbcec86538bb3f"`
Dec 13 02:57:01.097 INFO [stdout] f76199513dcdfe09ab609233d6979e12e565b3ea13b9909049dbcec86538bb3f
Dec 13 02:57:01.102 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 02:57:01.607 INFO [stdout] 6e03bc905c4e63df77eca33c3b7a564d49af1dd73b1d1d3566d4a5eea576063f
Dec 13 02:57:01.609 INFO running `"docker" "start" "-a" "6e03bc905c4e63df77eca33c3b7a564d49af1dd73b1d1d3566d4a5eea576063f"`
Dec 13 02:57:04.103 INFO [stderr] usermod: no changes
Dec 13 02:57:04.185 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
Dec 13 02:57:04.185 INFO [stderr]      Running /target/debug/deps/eight_queen_problem-3c38b4cdf45fddef
Dec 13 02:57:04.186 INFO [stdout] 
Dec 13 02:57:04.186 INFO [stdout] running 0 tests
Dec 13 02:57:04.186 INFO [stdout] 
Dec 13 02:57:04.186 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 02:57:04.186 INFO [stdout] 
Dec 13 02:57:04.188 INFO [stderr] su: No module specific data is present
Dec 13 02:57:05.180 INFO running `"docker" "inspect" "6e03bc905c4e63df77eca33c3b7a564d49af1dd73b1d1d3566d4a5eea576063f"`
Dec 13 02:57:05.557 INFO running `"docker" "rm" "-f" "6e03bc905c4e63df77eca33c3b7a564d49af1dd73b1d1d3566d4a5eea576063f"`
Dec 13 02:57:05.811 INFO [stdout] 6e03bc905c4e63df77eca33c3b7a564d49af1dd73b1d1d3566d4a5eea576063f