Dec 04 16:36:38.708 INFO checking jimmycuadra/connect_four against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 16:36:38.708 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-0/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 04 16:36:39.219 INFO [stdout] eab4d3abbc708a62416761496be027713e51f15655caa5dd577a1ad66f823eed
Dec 04 16:36:39.225 INFO running `"docker" "start" "-a" "eab4d3abbc708a62416761496be027713e51f15655caa5dd577a1ad66f823eed"`
Dec 04 16:36:41.270 INFO [stderr] usermod: no changes
Dec 04 16:36:41.331 INFO [stderr]     Checking connect_four v0.0.1 (/source)
Dec 04 16:36:41.835 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 04 16:36:41.835 INFO [stderr]    --> src/main.rs:133:20
Dec 04 16:36:41.835 INFO [stderr]     |
Dec 04 16:36:41.835 INFO [stderr] 133 |         for col in (0..self.column_count) {
Dec 04 16:36:41.835 INFO [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 04 16:36:41.835 INFO [stderr]     |
Dec 04 16:36:41.835 INFO [stderr]     = note: #[warn(unused_parens)] on by default
Dec 04 16:36:41.835 INFO [stderr] 
Dec 04 16:36:41.835 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 04 16:36:41.835 INFO [stderr]    --> src/main.rs:163:31
Dec 04 16:36:41.835 INFO [stderr]     |
Dec 04 16:36:41.835 INFO [stderr] 163 |                 for offset in (1..4) {
Dec 04 16:36:41.835 INFO [stderr]     |                               ^^^^^^ help: remove these parentheses
Dec 04 16:36:41.835 INFO [stderr] 
Dec 04 16:36:41.835 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 04 16:36:41.835 INFO [stderr]    --> src/main.rs:194:31
Dec 04 16:36:41.835 INFO [stderr]     |
Dec 04 16:36:41.835 INFO [stderr] 194 |                 for offset in (1..4) {
Dec 04 16:36:41.835 INFO [stderr]     |                               ^^^^^^ help: remove these parentheses
Dec 04 16:36:41.835 INFO [stderr] 
Dec 04 16:36:42.111 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 04 16:36:42.111 INFO [stderr]    --> src/main.rs:133:20
Dec 04 16:36:42.111 INFO [stderr]     |
Dec 04 16:36:42.111 INFO [stderr] 133 |         for col in (0..self.column_count) {
Dec 04 16:36:42.111 INFO [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 04 16:36:42.111 INFO [stderr]     |
Dec 04 16:36:42.111 INFO [stderr]     = note: #[warn(unused_parens)] on by default
Dec 04 16:36:42.111 INFO [stderr] 
Dec 04 16:36:42.111 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 04 16:36:42.111 INFO [stderr]    --> src/main.rs:163:31
Dec 04 16:36:42.111 INFO [stderr]     |
Dec 04 16:36:42.111 INFO [stderr] 163 |                 for offset in (1..4) {
Dec 04 16:36:42.111 INFO [stderr]     |                               ^^^^^^ help: remove these parentheses
Dec 04 16:36:42.111 INFO [stderr] 
Dec 04 16:36:42.111 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 04 16:36:42.111 INFO [stderr]    --> src/main.rs:194:31
Dec 04 16:36:42.111 INFO [stderr]     |
Dec 04 16:36:42.111 INFO [stderr] 194 |                 for offset in (1..4) {
Dec 04 16:36:42.111 INFO [stderr]     |                               ^^^^^^ help: remove these parentheses
Dec 04 16:36:42.111 INFO [stderr] 
Dec 04 16:36:42.315 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.01s
Dec 04 16:36:42.316 INFO [stderr] su: No module specific data is present
Dec 04 16:36:43.328 INFO running `"docker" "inspect" "eab4d3abbc708a62416761496be027713e51f15655caa5dd577a1ad66f823eed"`
Dec 04 16:36:43.718 INFO running `"docker" "rm" "-f" "eab4d3abbc708a62416761496be027713e51f15655caa5dd577a1ad66f823eed"`
Dec 04 16:36:44.143 INFO [stdout] eab4d3abbc708a62416761496be027713e51f15655caa5dd577a1ad66f823eed