Dec 11 16:19:56.917 INFO checking jinkaitoo/hello_world against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 16:19:56.917 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-4/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 16:19:57.400 INFO [stdout] 06e6eb63d2648c290d03f970f34617a6c422bb9354688818f42b97ba0a48a1fd
Dec 11 16:19:57.406 INFO running `"docker" "start" "-a" "06e6eb63d2648c290d03f970f34617a6c422bb9354688818f42b97ba0a48a1fd"`
Dec 11 16:19:58.800 INFO [stderr] usermod: no changes
Dec 11 16:19:58.893 INFO [stderr]     Checking hello_world v0.1.0 (/source)
Dec 11 16:19:59.332 INFO [stderr] warning: value assigned to `x` is never read
Dec 11 16:19:59.332 INFO [stderr]  --> src/main.rs:2:13
Dec 11 16:19:59.332 INFO [stderr]   |
Dec 11 16:19:59.332 INFO [stderr] 2 |     let mut x: i32 = 1;
Dec 11 16:19:59.332 INFO [stderr]   |             ^
Dec 11 16:19:59.332 INFO [stderr]   |
Dec 11 16:19:59.332 INFO [stderr]   = note: #[warn(unused_assignments)] on by default
Dec 11 16:19:59.332 INFO [stderr] 
Dec 11 16:19:59.332 INFO [stderr] warning: unused variable: `y`
Dec 11 16:19:59.332 INFO [stderr]  --> src/main.rs:6:9
Dec 11 16:19:59.332 INFO [stderr]   |
Dec 11 16:19:59.332 INFO [stderr] 6 |     let y = 4;
Dec 11 16:19:59.332 INFO [stderr]   |         ^ help: consider using `_y` instead
Dec 11 16:19:59.332 INFO [stderr]   |
Dec 11 16:19:59.332 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 11 16:19:59.332 INFO [stderr] 
Dec 11 16:19:59.359 INFO [stderr] warning: value assigned to `x` is never read
Dec 11 16:19:59.359 INFO [stderr]  --> src/main.rs:2:13
Dec 11 16:19:59.359 INFO [stderr]   |
Dec 11 16:19:59.359 INFO [stderr] 2 |     let mut x: i32 = 1;
Dec 11 16:19:59.359 INFO [stderr]   |             ^
Dec 11 16:19:59.359 INFO [stderr]   |
Dec 11 16:19:59.359 INFO [stderr]   = note: #[warn(unused_assignments)] on by default
Dec 11 16:19:59.359 INFO [stderr] 
Dec 11 16:19:59.359 INFO [stderr] warning: unused variable: `y`
Dec 11 16:19:59.359 INFO [stderr]  --> src/main.rs:6:9
Dec 11 16:19:59.359 INFO [stderr]   |
Dec 11 16:19:59.359 INFO [stderr] 6 |     let y = 4;
Dec 11 16:19:59.359 INFO [stderr]   |         ^ help: consider using `_y` instead
Dec 11 16:19:59.359 INFO [stderr]   |
Dec 11 16:19:59.359 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 11 16:19:59.359 INFO [stderr] 
Dec 11 16:19:59.388 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
Dec 11 16:19:59.390 INFO [stderr] su: No module specific data is present
Dec 11 16:19:59.914 INFO running `"docker" "inspect" "06e6eb63d2648c290d03f970f34617a6c422bb9354688818f42b97ba0a48a1fd"`
Dec 11 16:20:00.083 INFO running `"docker" "rm" "-f" "06e6eb63d2648c290d03f970f34617a6c422bb9354688818f42b97ba0a48a1fd"`
Dec 11 16:20:00.227 INFO [stdout] 06e6eb63d2648c290d03f970f34617a6c422bb9354688818f42b97ba0a48a1fd