Nov 16 13:06:18.746 INFO testing slavovojacek/8QP_rust against try#2e026d6e5d7621634147ad4c8074f1d964dbb1be for pr-55982
Nov 16 13:06:18.746 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-4/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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"`
Nov 16 13:06:19.111 INFO [stdout] fa7e4d1895377525b35447514cf41811093fc5a6ea1c0e28a53f451491b4fa1c
Nov 16 13:06:19.111 INFO running `"docker" "start" "-a" "fa7e4d1895377525b35447514cf41811093fc5a6ea1c0e28a53f451491b4fa1c"`
Nov 16 13:06:19.722 INFO [stderr] usermod: no changes
Nov 16 13:06:19.761 INFO [stderr]    Compiling rand v0.3.15
Nov 16 13:06:21.499 INFO [stderr]    Compiling eight_queen_problem v0.1.0 (/source)
Nov 16 13:06:21.751 INFO [stderr] warning: value assigned to `empty_squares` is never read
Nov 16 13:06:21.751 INFO [stderr]   --> src/main.rs:20:13
Nov 16 13:06:21.751 INFO [stderr]    |
Nov 16 13:06:21.752 INFO [stderr] 20 |     let mut empty_squares: Vec<Position> = Vec::new();
Nov 16 13:06:21.752 INFO [stderr]    |             ^^^^^^^^^^^^^
Nov 16 13:06:21.752 INFO [stderr]    |
Nov 16 13:06:21.752 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Nov 16 13:06:21.752 INFO [stderr] 
Nov 16 13:06:21.752 INFO [stderr] warning: unused variable: `r`
Nov 16 13:06:21.752 INFO [stderr]    --> src/main.rs:113:33
Nov 16 13:06:21.752 INFO [stderr]     |
Nov 16 13:06:21.752 INFO [stderr] 113 | fn fill_col(board: &mut Board, (r, c): Position) -> Result<(), Position> {
Nov 16 13:06:21.752 INFO [stderr]     |                                 ^ help: consider using `_r` instead
Nov 16 13:06:21.752 INFO [stderr]     |
Nov 16 13:06:21.752 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Nov 16 13:06:21.752 INFO [stderr] 
Nov 16 13:06:22.518 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.77s
Nov 16 13:06:22.523 INFO [stderr] su: No module specific data is present
Nov 16 13:06:23.006 INFO running `"docker" "inspect" "fa7e4d1895377525b35447514cf41811093fc5a6ea1c0e28a53f451491b4fa1c"`
Nov 16 13:06:23.113 INFO running `"docker" "rm" "-f" "fa7e4d1895377525b35447514cf41811093fc5a6ea1c0e28a53f451491b4fa1c"`
Nov 16 13:06:23.259 INFO [stdout] fa7e4d1895377525b35447514cf41811093fc5a6ea1c0e28a53f451491b4fa1c
Nov 16 13:06:23.264 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-4/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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"`
Nov 16 13:06:23.527 INFO [stdout] 91fe4600b20a35766b6bdb02b093796006f8bd00a1133c4ea58b4d5a110ba489
Nov 16 13:06:23.532 INFO running `"docker" "start" "-a" "91fe4600b20a35766b6bdb02b093796006f8bd00a1133c4ea58b4d5a110ba489"`
Nov 16 13:06:24.671 INFO [stderr] usermod: no changes
Nov 16 13:06:24.714 INFO [stderr]    Compiling eight_queen_problem v0.1.0 (/source)
Nov 16 13:06:25.024 INFO [stderr] warning: value assigned to `empty_squares` is never read
Nov 16 13:06:25.024 INFO [stderr]   --> src/main.rs:20:13
Nov 16 13:06:25.024 INFO [stderr]    |
Nov 16 13:06:25.025 INFO [stderr] 20 |     let mut empty_squares: Vec<Position> = Vec::new();
Nov 16 13:06:25.025 INFO [stderr]    |             ^^^^^^^^^^^^^
Nov 16 13:06:25.025 INFO [stderr]    |
Nov 16 13:06:25.026 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Nov 16 13:06:25.026 INFO [stderr] 
Nov 16 13:06:25.028 INFO [stderr] warning: unused variable: `r`
Nov 16 13:06:25.029 INFO [stderr]    --> src/main.rs:113:33
Nov 16 13:06:25.029 INFO [stderr]     |
Nov 16 13:06:25.029 INFO [stderr] 113 | fn fill_col(board: &mut Board, (r, c): Position) -> Result<(), Position> {
Nov 16 13:06:25.030 INFO [stderr]     |                                 ^ help: consider using `_r` instead
Nov 16 13:06:25.031 INFO [stderr]     |
Nov 16 13:06:25.031 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Nov 16 13:06:25.031 INFO [stderr] 
Nov 16 13:06:25.390 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
Nov 16 13:06:25.395 INFO [stderr] su: No module specific data is present
Nov 16 13:06:26.046 INFO running `"docker" "inspect" "91fe4600b20a35766b6bdb02b093796006f8bd00a1133c4ea58b4d5a110ba489"`
Nov 16 13:06:26.377 INFO running `"docker" "rm" "-f" "91fe4600b20a35766b6bdb02b093796006f8bd00a1133c4ea58b4d5a110ba489"`
Nov 16 13:06:26.670 INFO [stdout] 91fe4600b20a35766b6bdb02b093796006f8bd00a1133c4ea58b4d5a110ba489
Nov 16 13:06:26.678 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-4/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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"`
Nov 16 13:06:27.209 INFO [stdout] 57fec4a8ad53635a18cfb58db8970fe0a68337ad7f71819655475955c1a3c3eb
Nov 16 13:06:27.211 INFO running `"docker" "start" "-a" "57fec4a8ad53635a18cfb58db8970fe0a68337ad7f71819655475955c1a3c3eb"`
Nov 16 13:06:28.359 INFO [stderr] usermod: no changes
Nov 16 13:06:28.431 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
Nov 16 13:06:28.443 INFO [stderr]      Running /target/debug/deps/eight_queen_problem-ed8128156eef229a
Nov 16 13:06:28.443 INFO [stdout] 
Nov 16 13:06:28.443 INFO [stdout] running 0 tests
Nov 16 13:06:28.443 INFO [stdout] 
Nov 16 13:06:28.443 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 16 13:06:28.443 INFO [stdout] 
Nov 16 13:06:28.445 INFO [stderr] su: No module specific data is present
Nov 16 13:06:29.291 INFO running `"docker" "inspect" "57fec4a8ad53635a18cfb58db8970fe0a68337ad7f71819655475955c1a3c3eb"`
Nov 16 13:06:29.576 INFO running `"docker" "rm" "-f" "57fec4a8ad53635a18cfb58db8970fe0a68337ad7f71819655475955c1a3c3eb"`
Nov 16 13:06:29.879 INFO [stdout] 57fec4a8ad53635a18cfb58db8970fe0a68337ad7f71819655475955c1a3c3eb