Dec 11 17:57:10.352 INFO checking glasses-n-contacts/rust-simple-server against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 17:57:10.352 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-5/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/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 17:57:10.585 INFO [stdout] d148467312a000f62c3a7b6e2b99a5dbfea1e61062c2ff175c979e2ebd314279
Dec 11 17:57:10.587 INFO running `"docker" "start" "-a" "d148467312a000f62c3a7b6e2b99a5dbfea1e61062c2ff175c979e2ebd314279"`
Dec 11 17:57:11.636 INFO [stderr] usermod: no changes
Dec 11 17:57:11.712 INFO [stderr]     Checking hello v0.1.0 (/source)
Dec 11 17:57:12.264 INFO [stderr] warning: field is never used: `workers`
Dec 11 17:57:12.265 INFO [stderr]  --> src/lib.rs:7:5
Dec 11 17:57:12.265 INFO [stderr]   |
Dec 11 17:57:12.266 INFO [stderr] 7 |     workers: Vec<Worker>,
Dec 11 17:57:12.266 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 11 17:57:12.266 INFO [stderr]   |
Dec 11 17:57:12.266 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 17:57:12.267 INFO [stderr] 
Dec 11 17:57:12.267 INFO [stderr] warning: field is never used: `id`
Dec 11 17:57:12.267 INFO [stderr]   --> src/lib.rs:61:5
Dec 11 17:57:12.267 INFO [stderr]    |
Dec 11 17:57:12.268 INFO [stderr] 61 |     id: usize,
Dec 11 17:57:12.268 INFO [stderr]    |     ^^^^^^^^^
Dec 11 17:57:12.268 INFO [stderr] 
Dec 11 17:57:12.268 INFO [stderr] warning: field is never used: `thread`
Dec 11 17:57:12.269 INFO [stderr]   --> src/lib.rs:62:5
Dec 11 17:57:12.269 INFO [stderr]    |
Dec 11 17:57:12.269 INFO [stderr] 62 |     thread: thread::JoinHandle<()>,
Dec 11 17:57:12.269 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 17:57:12.270 INFO [stderr] 
Dec 11 17:57:12.355 INFO [stderr] warning: field is never used: `workers`
Dec 11 17:57:12.355 INFO [stderr]  --> src/lib.rs:7:5
Dec 11 17:57:12.355 INFO [stderr]   |
Dec 11 17:57:12.355 INFO [stderr] 7 |     workers: Vec<Worker>,
Dec 11 17:57:12.355 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 11 17:57:12.355 INFO [stderr]   |
Dec 11 17:57:12.355 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 17:57:12.355 INFO [stderr] 
Dec 11 17:57:12.355 INFO [stderr] warning: field is never used: `id`
Dec 11 17:57:12.355 INFO [stderr]   --> src/lib.rs:61:5
Dec 11 17:57:12.356 INFO [stderr]    |
Dec 11 17:57:12.356 INFO [stderr] 61 |     id: usize,
Dec 11 17:57:12.356 INFO [stderr]    |     ^^^^^^^^^
Dec 11 17:57:12.356 INFO [stderr] 
Dec 11 17:57:12.356 INFO [stderr] warning: field is never used: `thread`
Dec 11 17:57:12.356 INFO [stderr]   --> src/lib.rs:62:5
Dec 11 17:57:12.356 INFO [stderr]    |
Dec 11 17:57:12.356 INFO [stderr] 62 |     thread: thread::JoinHandle<()>,
Dec 11 17:57:12.356 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 17:57:12.356 INFO [stderr] 
Dec 11 17:57:12.972 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.31s
Dec 11 17:57:12.972 INFO [stderr] su: No module specific data is present
Dec 11 17:57:13.947 INFO running `"docker" "inspect" "d148467312a000f62c3a7b6e2b99a5dbfea1e61062c2ff175c979e2ebd314279"`
Dec 11 17:57:14.242 INFO running `"docker" "rm" "-f" "d148467312a000f62c3a7b6e2b99a5dbfea1e61062c2ff175c979e2ebd314279"`
Dec 11 17:57:14.484 INFO [stdout] d148467312a000f62c3a7b6e2b99a5dbfea1e61062c2ff175c979e2ebd314279