Oct 21 15:36:54.487 INFO checking mmgeorge/ConnectFour against master#155510e377ae2a8d8ee0dad1a5f809c9062a5526 for pr-55192
Oct 21 15:36:54.487 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192/worker-0/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-0/pr-55192/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/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 +155510e377ae2a8d8ee0dad1a5f809c9062a5526-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 21 15:36:54.957 INFO blam! 39c51a93906987320823308de40698dd7d158d7227def66ca3fd24d3ce30b9ef
Oct 21 15:36:54.959 INFO running `"docker" "start" "-a" "39c51a93906987320823308de40698dd7d158d7227def66ca3fd24d3ce30b9ef"`
Oct 21 15:36:56.706 INFO kablam! usermod: no changes
Oct 21 15:36:56.748 INFO kablam!     Checking connect_four v0.1.0 (/source)
Oct 21 15:36:57.184 INFO kablam! warning: unused imports: `ConnectK`, `Player`
Oct 21 15:36:57.184 INFO kablam!    --> src/game.rs:361:14
Oct 21 15:36:57.184 INFO kablam!     |
Oct 21 15:36:57.184 INFO kablam! 361 |     use super::{ConnectK,Player};
Oct 21 15:36:57.184 INFO kablam!     |                 ^^^^^^^^ ^^^^^^
Oct 21 15:36:57.184 INFO kablam!     |
Oct 21 15:36:57.184 INFO kablam!     = note: #[warn(unused_imports)] on by default
Oct 21 15:36:57.184 INFO kablam! 
Oct 21 15:36:57.588 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
Oct 21 15:36:57.588 INFO kablam! su: No module specific data is present
Oct 21 15:36:58.492 INFO running `"docker" "rm" "-f" "39c51a93906987320823308de40698dd7d158d7227def66ca3fd24d3ce30b9ef"`
Oct 21 15:36:58.792 INFO blam! 39c51a93906987320823308de40698dd7d158d7227def66ca3fd24d3ce30b9ef