Oct 13 03:46:58.081 INFO checking LiteUnder/testing_rust against master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f for pr-54977
Oct 13 03:46:58.081 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-6/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-6/pr-54977/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/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 +5af0bb83044c3fb43d59ad5f49ee5ae1a293901f-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 13 03:46:58.348 INFO blam! be4b560f553afc6a60f63d51804f0addf73897c0573319c91a600dbc9cf9c0a2
Oct 13 03:46:58.356 INFO running `"docker" "start" "-a" "be4b560f553afc6a60f63d51804f0addf73897c0573319c91a600dbc9cf9c0a2"`
Oct 13 03:46:58.808 INFO kablam! usermod: no changes
Oct 13 03:46:58.830 INFO kablam!     Checking testing_rust v0.1.0 (/source)
Oct 13 03:46:59.207 INFO kablam! warning: unused variable: `x`
Oct 13 03:46:59.207 INFO kablam!   --> src/main.rs:12:9
Oct 13 03:46:59.207 INFO kablam!    |
Oct 13 03:46:59.207 INFO kablam! 12 |     let x = Some(5);
Oct 13 03:46:59.207 INFO kablam!    |         ^ help: consider using `_x` instead
Oct 13 03:46:59.207 INFO kablam!    |
Oct 13 03:46:59.207 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 13 03:46:59.207 INFO kablam! 
Oct 13 03:46:59.207 INFO kablam! warning: unused variable: `y`
Oct 13 03:46:59.207 INFO kablam!   --> src/main.rs:13:9
Oct 13 03:46:59.207 INFO kablam!    |
Oct 13 03:46:59.207 INFO kablam! 13 |     let y: Option<i8> = None;
Oct 13 03:46:59.207 INFO kablam!    |         ^ help: consider using `_y` instead
Oct 13 03:46:59.207 INFO kablam! 
Oct 13 03:46:59.304 INFO kablam! warning: unused variable: `x`
Oct 13 03:46:59.304 INFO kablam!   --> src/main.rs:12:9
Oct 13 03:46:59.304 INFO kablam!    |
Oct 13 03:46:59.304 INFO kablam! 12 |     let x = Some(5);
Oct 13 03:46:59.304 INFO kablam!    |         ^ help: consider using `_x` instead
Oct 13 03:46:59.304 INFO kablam!    |
Oct 13 03:46:59.304 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 13 03:46:59.304 INFO kablam! 
Oct 13 03:46:59.304 INFO kablam! warning: unused variable: `y`
Oct 13 03:46:59.304 INFO kablam!   --> src/main.rs:13:9
Oct 13 03:46:59.304 INFO kablam!    |
Oct 13 03:46:59.304 INFO kablam! 13 |     let y: Option<i8> = None;
Oct 13 03:46:59.304 INFO kablam!    |         ^ help: consider using `_y` instead
Oct 13 03:46:59.304 INFO kablam! 
Oct 13 03:46:59.317 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.49s
Oct 13 03:46:59.319 INFO kablam! su: No module specific data is present
Oct 13 03:46:59.573 INFO running `"docker" "rm" "-f" "be4b560f553afc6a60f63d51804f0addf73897c0573319c91a600dbc9cf9c0a2"`
Oct 13 03:46:59.654 INFO blam! be4b560f553afc6a60f63d51804f0addf73897c0573319c91a600dbc9cf9c0a2