Dec 05 01:27:30.324 INFO checking LiteUnder/testing_rust against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 01:27:30.324 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-3/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 05 01:27:30.573 INFO [stdout] d5efd37874413cdd1e70ccdddd22a6c7ffd6f231eed4f1295a8166bb26f57cd0
Dec 05 01:27:30.575 INFO running `"docker" "start" "-a" "d5efd37874413cdd1e70ccdddd22a6c7ffd6f231eed4f1295a8166bb26f57cd0"`
Dec 05 01:27:30.937 INFO [stderr] usermod: no changes
Dec 05 01:27:30.969 INFO [stderr]     Checking testing_rust v0.1.0 (/source)
Dec 05 01:27:31.351 INFO [stderr] warning: unused variable: `x`
Dec 05 01:27:31.351 INFO [stderr]   --> src/main.rs:12:9
Dec 05 01:27:31.351 INFO [stderr]    |
Dec 05 01:27:31.351 INFO [stderr] 12 |     let x = Some(5);
Dec 05 01:27:31.351 INFO [stderr]    |         ^ help: consider using `_x` instead
Dec 05 01:27:31.351 INFO [stderr]    |
Dec 05 01:27:31.351 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 01:27:31.351 INFO [stderr] 
Dec 05 01:27:31.351 INFO [stderr] warning: unused variable: `y`
Dec 05 01:27:31.351 INFO [stderr]   --> src/main.rs:13:9
Dec 05 01:27:31.351 INFO [stderr]    |
Dec 05 01:27:31.351 INFO [stderr] 13 |     let y: Option<i8> = None;
Dec 05 01:27:31.351 INFO [stderr]    |         ^ help: consider using `_y` instead
Dec 05 01:27:31.351 INFO [stderr] 
Dec 05 01:27:31.498 INFO [stderr] warning: unused variable: `x`
Dec 05 01:27:31.498 INFO [stderr]   --> src/main.rs:12:9
Dec 05 01:27:31.498 INFO [stderr]    |
Dec 05 01:27:31.498 INFO [stderr] 12 |     let x = Some(5);
Dec 05 01:27:31.498 INFO [stderr]    |         ^ help: consider using `_x` instead
Dec 05 01:27:31.498 INFO [stderr]    |
Dec 05 01:27:31.498 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 01:27:31.498 INFO [stderr] 
Dec 05 01:27:31.498 INFO [stderr] warning: unused variable: `y`
Dec 05 01:27:31.498 INFO [stderr]   --> src/main.rs:13:9
Dec 05 01:27:31.498 INFO [stderr]    |
Dec 05 01:27:31.498 INFO [stderr] 13 |     let y: Option<i8> = None;
Dec 05 01:27:31.498 INFO [stderr]    |         ^ help: consider using `_y` instead
Dec 05 01:27:31.498 INFO [stderr] 
Dec 05 01:27:31.513 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
Dec 05 01:27:31.516 INFO [stderr] su: No module specific data is present
Dec 05 01:27:31.770 INFO running `"docker" "inspect" "d5efd37874413cdd1e70ccdddd22a6c7ffd6f231eed4f1295a8166bb26f57cd0"`
Dec 05 01:27:31.875 INFO running `"docker" "rm" "-f" "d5efd37874413cdd1e70ccdddd22a6c7ffd6f231eed4f1295a8166bb26f57cd0"`
Dec 05 01:27:32.035 INFO [stdout] d5efd37874413cdd1e70ccdddd22a6c7ffd6f231eed4f1295a8166bb26f57cd0