Nov 27 20:47:55.678 INFO checking sebm/checkers against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 27 20:47:55.678 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-3/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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"`
Nov 27 20:47:56.004 INFO [stdout] 9abb26606b8b52874f33d184c44d775a29c8a8483e211e0e981fae069bc205cb
Nov 27 20:47:56.004 INFO running `"docker" "start" "-a" "9abb26606b8b52874f33d184c44d775a29c8a8483e211e0e981fae069bc205cb"`
Nov 27 20:47:57.137 INFO [stderr] usermod: no changes
Nov 27 20:47:57.249 INFO [stderr]     Checking checkers v0.1.0 (/source)
Nov 27 20:47:57.471 INFO [stderr] warning: unused import: `initial_board`
Nov 27 20:47:57.471 INFO [stderr]  --> src/main.rs:4:26
Nov 27 20:47:57.471 INFO [stderr]   |
Nov 27 20:47:57.471 INFO [stderr] 4 | use board::{BoardSquare, initial_board, draw_board};
Nov 27 20:47:57.472 INFO [stderr]   |                          ^^^^^^^^^^^^^
Nov 27 20:47:57.472 INFO [stderr]   |
Nov 27 20:47:57.472 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 27 20:47:57.472 INFO [stderr] 
Nov 27 20:47:57.601 INFO [stderr] warning: unused import: `initial_board`
Nov 27 20:47:57.601 INFO [stderr]  --> src/main.rs:4:26
Nov 27 20:47:57.601 INFO [stderr]   |
Nov 27 20:47:57.601 INFO [stderr] 4 | use board::{BoardSquare, initial_board, draw_board};
Nov 27 20:47:57.601 INFO [stderr]   |                          ^^^^^^^^^^^^^
Nov 27 20:47:57.601 INFO [stderr]   |
Nov 27 20:47:57.601 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 27 20:47:57.601 INFO [stderr] 
Nov 27 20:47:57.617 INFO [stderr] warning: function is never used: `initial_board`
Nov 27 20:47:57.617 INFO [stderr]   --> src/board.rs:26:1
Nov 27 20:47:57.617 INFO [stderr]    |
Nov 27 20:47:57.617 INFO [stderr] 26 | pub fn initial_board() -> [[BoardSquare; 8]; 8] {
Nov 27 20:47:57.617 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 20:47:57.617 INFO [stderr]    |
Nov 27 20:47:57.617 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 27 20:47:57.617 INFO [stderr] 
Nov 27 20:47:57.764 INFO [stderr] warning: function is never used: `initial_board`
Nov 27 20:47:57.764 INFO [stderr]   --> src/board.rs:26:1
Nov 27 20:47:57.764 INFO [stderr]    |
Nov 27 20:47:57.764 INFO [stderr] 26 | pub fn initial_board() -> [[BoardSquare; 8]; 8] {
Nov 27 20:47:57.764 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 20:47:57.764 INFO [stderr]    |
Nov 27 20:47:57.764 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 27 20:47:57.764 INFO [stderr] 
Nov 27 20:47:57.780 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
Nov 27 20:47:57.800 INFO [stderr] su: No module specific data is present
Nov 27 20:47:58.589 INFO running `"docker" "inspect" "9abb26606b8b52874f33d184c44d775a29c8a8483e211e0e981fae069bc205cb"`
Nov 27 20:47:58.854 INFO running `"docker" "rm" "-f" "9abb26606b8b52874f33d184c44d775a29c8a8483e211e0e981fae069bc205cb"`
Nov 27 20:47:59.202 INFO [stdout] 9abb26606b8b52874f33d184c44d775a29c8a8483e211e0e981fae069bc205cb