Oct 31 20:55:27.195 INFO checking slavovojacek/8QP_rust against master#05812fa8c588473f03e3fa7cf59cd84f4f37c715 for pr-55538
Oct 31 20:55:27.197 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-6/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-55538/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/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 +05812fa8c588473f03e3fa7cf59cd84f4f37c715-alt check --frozen --all --all-targets" "-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"`
Oct 31 20:55:27.598 INFO blam! 59e16d386e56a4fc94d10ac64cd7e3f63502cf90cb75e7ae598848c37a0c4d8f
Oct 31 20:55:27.601 INFO running `"docker" "start" "-a" "59e16d386e56a4fc94d10ac64cd7e3f63502cf90cb75e7ae598848c37a0c4d8f"`
Oct 31 20:55:28.676 INFO kablam! usermod: no changes
Oct 31 20:55:28.713 INFO kablam!     Checking eight_queen_problem v0.1.0 (/source)
Oct 31 20:55:29.153 INFO kablam! warning: value assigned to `empty_squares` is never read
Oct 31 20:55:29.153 INFO kablam!   --> src/main.rs:20:13
Oct 31 20:55:29.153 INFO kablam!    |
Oct 31 20:55:29.154 INFO kablam! 20 |     let mut empty_squares: Vec<Position> = Vec::new();
Oct 31 20:55:29.154 INFO kablam!    |             ^^^^^^^^^^^^^
Oct 31 20:55:29.154 INFO kablam!    |
Oct 31 20:55:29.154 INFO kablam!    = note: #[warn(unused_assignments)] on by default
Oct 31 20:55:29.155 INFO kablam! 
Oct 31 20:55:29.155 INFO kablam! warning: unused variable: `r`
Oct 31 20:55:29.155 INFO kablam!    --> src/main.rs:113:33
Oct 31 20:55:29.155 INFO kablam!     |
Oct 31 20:55:29.156 INFO kablam! 113 | fn fill_col(board: &mut Board, (r, c): Position) -> Result<(), Position> {
Oct 31 20:55:29.156 INFO kablam!     |                                 ^ help: consider using `_r` instead
Oct 31 20:55:29.156 INFO kablam!     |
Oct 31 20:55:29.156 INFO kablam!     = note: #[warn(unused_variables)] on by default
Oct 31 20:55:29.157 INFO kablam! 
Oct 31 20:55:29.180 INFO kablam! warning: value assigned to `empty_squares` is never read
Oct 31 20:55:29.180 INFO kablam!   --> src/main.rs:20:13
Oct 31 20:55:29.180 INFO kablam!    |
Oct 31 20:55:29.180 INFO kablam! 20 |     let mut empty_squares: Vec<Position> = Vec::new();
Oct 31 20:55:29.180 INFO kablam!    |             ^^^^^^^^^^^^^
Oct 31 20:55:29.180 INFO kablam!    |
Oct 31 20:55:29.180 INFO kablam!    = note: #[warn(unused_assignments)] on by default
Oct 31 20:55:29.180 INFO kablam! 
Oct 31 20:55:29.180 INFO kablam! warning: unused variable: `r`
Oct 31 20:55:29.180 INFO kablam!    --> src/main.rs:113:33
Oct 31 20:55:29.180 INFO kablam!     |
Oct 31 20:55:29.180 INFO kablam! 113 | fn fill_col(board: &mut Board, (r, c): Position) -> Result<(), Position> {
Oct 31 20:55:29.180 INFO kablam!     |                                 ^ help: consider using `_r` instead
Oct 31 20:55:29.180 INFO kablam!     |
Oct 31 20:55:29.180 INFO kablam!     = note: #[warn(unused_variables)] on by default
Oct 31 20:55:29.180 INFO kablam! 
Oct 31 20:55:29.204 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
Oct 31 20:55:29.204 INFO kablam! su: No module specific data is present
Oct 31 20:55:29.588 INFO running `"docker" "rm" "-f" "59e16d386e56a4fc94d10ac64cd7e3f63502cf90cb75e7ae598848c37a0c4d8f"`
Oct 31 20:55:29.776 INFO blam! 59e16d386e56a4fc94d10ac64cd7e3f63502cf90cb75e7ae598848c37a0c4d8f