Dec 13 02:56:52.088 INFO testing slavovojacek/8QP_rust against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 13 02:56:52.088 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-5/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 02:56:52.543 INFO [stdout] ccf5dbf833b8e2138471f2e7a487ba02fdf058924daf9f44dc7dd6b5407b2078
Dec 13 02:56:52.551 INFO running `"docker" "start" "-a" "ccf5dbf833b8e2138471f2e7a487ba02fdf058924daf9f44dc7dd6b5407b2078"`
Dec 13 02:56:53.575 INFO [stderr] usermod: no changes
Dec 13 02:56:53.667 INFO [stderr]    Compiling eight_queen_problem v0.1.0 (/source)
Dec 13 02:56:54.075 INFO [stderr] warning: value assigned to `empty_squares` is never read
Dec 13 02:56:54.075 INFO [stderr]   --> src/main.rs:20:13
Dec 13 02:56:54.075 INFO [stderr]    |
Dec 13 02:56:54.075 INFO [stderr] 20 |     let mut empty_squares: Vec<Position> = Vec::new();
Dec 13 02:56:54.075 INFO [stderr]    |             ^^^^^^^^^^^^^
Dec 13 02:56:54.075 INFO [stderr]    |
Dec 13 02:56:54.075 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 13 02:56:54.075 INFO [stderr] 
Dec 13 02:56:54.075 INFO [stderr] warning: unused variable: `r`
Dec 13 02:56:54.075 INFO [stderr]    --> src/main.rs:113:33
Dec 13 02:56:54.075 INFO [stderr]     |
Dec 13 02:56:54.075 INFO [stderr] 113 | fn fill_col(board: &mut Board, (r, c): Position) -> Result<(), Position> {
Dec 13 02:56:54.075 INFO [stderr]     |                                 ^ help: consider using `_r` instead
Dec 13 02:56:54.075 INFO [stderr]     |
Dec 13 02:56:54.075 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 13 02:56:54.075 INFO [stderr] 
Dec 13 02:56:55.115 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.50s
Dec 13 02:56:55.117 INFO [stderr] su: No module specific data is present
Dec 13 02:56:55.727 INFO running `"docker" "inspect" "ccf5dbf833b8e2138471f2e7a487ba02fdf058924daf9f44dc7dd6b5407b2078"`
Dec 13 02:56:55.935 INFO running `"docker" "rm" "-f" "ccf5dbf833b8e2138471f2e7a487ba02fdf058924daf9f44dc7dd6b5407b2078"`
Dec 13 02:56:56.246 INFO [stdout] ccf5dbf833b8e2138471f2e7a487ba02fdf058924daf9f44dc7dd6b5407b2078
Dec 13 02:56:56.253 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-5/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 02:56:56.678 INFO [stdout] 2fa7dc5c9cdf48a729073e603c316ba616e8a6a7042c0be110c5615a1a54e8e6
Dec 13 02:56:56.683 INFO running `"docker" "start" "-a" "2fa7dc5c9cdf48a729073e603c316ba616e8a6a7042c0be110c5615a1a54e8e6"`
Dec 13 02:56:58.161 INFO [stderr] usermod: no changes
Dec 13 02:56:58.219 INFO [stderr]    Compiling eight_queen_problem v0.1.0 (/source)
Dec 13 02:56:58.663 INFO [stderr] warning: value assigned to `empty_squares` is never read
Dec 13 02:56:58.663 INFO [stderr]   --> src/main.rs:20:13
Dec 13 02:56:58.663 INFO [stderr]    |
Dec 13 02:56:58.663 INFO [stderr] 20 |     let mut empty_squares: Vec<Position> = Vec::new();
Dec 13 02:56:58.663 INFO [stderr]    |             ^^^^^^^^^^^^^
Dec 13 02:56:58.663 INFO [stderr]    |
Dec 13 02:56:58.663 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 13 02:56:58.663 INFO [stderr] 
Dec 13 02:56:58.663 INFO [stderr] warning: unused variable: `r`
Dec 13 02:56:58.663 INFO [stderr]    --> src/main.rs:113:33
Dec 13 02:56:58.663 INFO [stderr]     |
Dec 13 02:56:58.663 INFO [stderr] 113 | fn fill_col(board: &mut Board, (r, c): Position) -> Result<(), Position> {
Dec 13 02:56:58.663 INFO [stderr]     |                                 ^ help: consider using `_r` instead
Dec 13 02:56:58.663 INFO [stderr]     |
Dec 13 02:56:58.663 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 13 02:56:58.663 INFO [stderr] 
Dec 13 02:56:59.099 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
Dec 13 02:56:59.102 INFO [stderr] su: No module specific data is present
Dec 13 02:57:00.418 INFO running `"docker" "inspect" "2fa7dc5c9cdf48a729073e603c316ba616e8a6a7042c0be110c5615a1a54e8e6"`
Dec 13 02:57:00.803 INFO running `"docker" "rm" "-f" "2fa7dc5c9cdf48a729073e603c316ba616e8a6a7042c0be110c5615a1a54e8e6"`
Dec 13 02:57:01.127 INFO [stdout] 2fa7dc5c9cdf48a729073e603c316ba616e8a6a7042c0be110c5615a1a54e8e6
Dec 13 02:57:01.129 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-5/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 02:57:01.683 INFO [stdout] 36db065b8605c960b1f59858f27530621eb725d0709533cf54b97e4ed174fdf1
Dec 13 02:57:01.685 INFO running `"docker" "start" "-a" "36db065b8605c960b1f59858f27530621eb725d0709533cf54b97e4ed174fdf1"`
Dec 13 02:57:03.619 INFO [stderr] usermod: no changes
Dec 13 02:57:03.731 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
Dec 13 02:57:03.731 INFO [stderr]      Running /target/debug/deps/eight_queen_problem-f0c556a1c98c2712
Dec 13 02:57:03.732 INFO [stdout] 
Dec 13 02:57:03.732 INFO [stdout] running 0 tests
Dec 13 02:57:03.732 INFO [stdout] 
Dec 13 02:57:03.732 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 02:57:03.732 INFO [stdout] 
Dec 13 02:57:03.734 INFO [stderr] su: No module specific data is present
Dec 13 02:57:05.180 INFO running `"docker" "inspect" "36db065b8605c960b1f59858f27530621eb725d0709533cf54b97e4ed174fdf1"`
Dec 13 02:57:05.451 INFO running `"docker" "rm" "-f" "36db065b8605c960b1f59858f27530621eb725d0709533cf54b97e4ed174fdf1"`
Dec 13 02:57:05.838 INFO [stdout] 36db065b8605c960b1f59858f27530621eb725d0709533cf54b97e4ed174fdf1