Dec 11 09:51:21.012 INFO checking sebm/checkers against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 09:51:21.012 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-7/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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"`
Dec 11 09:51:21.525 INFO [stdout] 8e90294fb5520e6089fe5aa8cbe3f7e9065af78e604291d114e74da47feb74f7
Dec 11 09:51:21.530 INFO running `"docker" "start" "-a" "8e90294fb5520e6089fe5aa8cbe3f7e9065af78e604291d114e74da47feb74f7"`
Dec 11 09:51:22.736 INFO [stderr] usermod: no changes
Dec 11 09:51:22.784 INFO [stderr]     Checking checkers v0.1.0 (/source)
Dec 11 09:51:23.142 INFO [stderr] warning: unused import: `initial_board`
Dec 11 09:51:23.142 INFO [stderr]  --> src/main.rs:4:26
Dec 11 09:51:23.142 INFO [stderr]   |
Dec 11 09:51:23.142 INFO [stderr] 4 | use board::{BoardSquare, initial_board, draw_board};
Dec 11 09:51:23.142 INFO [stderr]   |                          ^^^^^^^^^^^^^
Dec 11 09:51:23.142 INFO [stderr]   |
Dec 11 09:51:23.142 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 09:51:23.142 INFO [stderr] 
Dec 11 09:51:23.285 INFO [stderr] warning: unused import: `initial_board`
Dec 11 09:51:23.286 INFO [stderr]  --> src/main.rs:4:26
Dec 11 09:51:23.286 INFO [stderr]   |
Dec 11 09:51:23.286 INFO [stderr] 4 | use board::{BoardSquare, initial_board, draw_board};
Dec 11 09:51:23.286 INFO [stderr]   |                          ^^^^^^^^^^^^^
Dec 11 09:51:23.286 INFO [stderr]   |
Dec 11 09:51:23.286 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 09:51:23.286 INFO [stderr] 
Dec 11 09:51:23.400 INFO [stderr] warning: function is never used: `initial_board`
Dec 11 09:51:23.400 INFO [stderr]   --> src/board.rs:26:1
Dec 11 09:51:23.400 INFO [stderr]    |
Dec 11 09:51:23.400 INFO [stderr] 26 | pub fn initial_board() -> [[BoardSquare; 8]; 8] {
Dec 11 09:51:23.400 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 09:51:23.400 INFO [stderr]    |
Dec 11 09:51:23.400 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 09:51:23.400 INFO [stderr] 
Dec 11 09:51:23.433 INFO [stderr] warning: function is never used: `initial_board`
Dec 11 09:51:23.433 INFO [stderr]   --> src/board.rs:26:1
Dec 11 09:51:23.433 INFO [stderr]    |
Dec 11 09:51:23.433 INFO [stderr] 26 | pub fn initial_board() -> [[BoardSquare; 8]; 8] {
Dec 11 09:51:23.433 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 09:51:23.433 INFO [stderr]    |
Dec 11 09:51:23.433 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 09:51:23.433 INFO [stderr] 
Dec 11 09:51:23.475 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
Dec 11 09:51:23.475 INFO [stderr] su: No module specific data is present
Dec 11 09:51:24.224 INFO running `"docker" "inspect" "8e90294fb5520e6089fe5aa8cbe3f7e9065af78e604291d114e74da47feb74f7"`
Dec 11 09:51:24.572 INFO running `"docker" "rm" "-f" "8e90294fb5520e6089fe5aa8cbe3f7e9065af78e604291d114e74da47feb74f7"`
Dec 11 09:51:24.929 INFO [stdout] 8e90294fb5520e6089fe5aa8cbe3f7e9065af78e604291d114e74da47feb74f7