Dec 17 23:43:54.006 INFO checking glasses-n-contacts/rust-simple-server against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 23:43:54.007 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/glasses-n-contacts/rust-simple-server:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 23:43:54.479 INFO [stdout] 196593e6798d80ec60456f713dcb1fdbcc286b45a065589a18a5c6fad17ad114
Dec 17 23:43:54.481 INFO running `"docker" "start" "-a" "196593e6798d80ec60456f713dcb1fdbcc286b45a065589a18a5c6fad17ad114"`
Dec 17 23:43:56.969 INFO [stderr]     Checking hello v0.1.0 (/opt/crater/workdir)
Dec 17 23:43:57.239 INFO [stderr] warning: field is never used: `workers`
Dec 17 23:43:57.239 INFO [stderr]  --> src/lib.rs:7:5
Dec 17 23:43:57.240 INFO [stderr]   |
Dec 17 23:43:57.240 INFO [stderr] 7 |     workers: Vec<Worker>,
Dec 17 23:43:57.240 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 17 23:43:57.268 INFO [stderr]   |
Dec 17 23:43:57.269 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 17 23:43:57.269 INFO [stderr] 
Dec 17 23:43:57.269 INFO [stderr] warning: field is never used: `id`
Dec 17 23:43:57.269 INFO [stderr]   --> src/lib.rs:61:5
Dec 17 23:43:57.270 INFO [stderr]    |
Dec 17 23:43:57.270 INFO [stderr] 61 |     id: usize,
Dec 17 23:43:57.270 INFO [stderr]    |     ^^^^^^^^^
Dec 17 23:43:57.270 INFO [stderr] 
Dec 17 23:43:57.271 INFO [stderr] warning: field is never used: `thread`
Dec 17 23:43:57.271 INFO [stderr]   --> src/lib.rs:62:5
Dec 17 23:43:57.271 INFO [stderr]    |
Dec 17 23:43:57.271 INFO [stderr] 62 |     thread: thread::JoinHandle<()>,
Dec 17 23:43:57.272 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 23:43:57.272 INFO [stderr] 
Dec 17 23:43:57.357 INFO [stderr] warning: field is never used: `workers`
Dec 17 23:43:57.357 INFO [stderr]  --> src/lib.rs:7:5
Dec 17 23:43:57.357 INFO [stderr]   |
Dec 17 23:43:57.358 INFO [stderr] 7 |     workers: Vec<Worker>,
Dec 17 23:43:57.358 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 17 23:43:57.358 INFO [stderr]   |
Dec 17 23:43:57.358 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 17 23:43:57.359 INFO [stderr] 
Dec 17 23:43:57.359 INFO [stderr] warning: field is never used: `id`
Dec 17 23:43:57.359 INFO [stderr]   --> src/lib.rs:61:5
Dec 17 23:43:57.359 INFO [stderr]    |
Dec 17 23:43:57.359 INFO [stderr] 61 |     id: usize,
Dec 17 23:43:57.359 INFO [stderr]    |     ^^^^^^^^^
Dec 17 23:43:57.360 INFO [stderr] 
Dec 17 23:43:57.360 INFO [stderr] warning: field is never used: `thread`
Dec 17 23:43:57.360 INFO [stderr]   --> src/lib.rs:62:5
Dec 17 23:43:57.360 INFO [stderr]    |
Dec 17 23:43:57.360 INFO [stderr] 62 |     thread: thread::JoinHandle<()>,
Dec 17 23:43:57.360 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 23:43:57.360 INFO [stderr] 
Dec 17 23:43:57.772 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
Dec 17 23:43:58.294 INFO running `"docker" "inspect" "196593e6798d80ec60456f713dcb1fdbcc286b45a065589a18a5c6fad17ad114"`
Dec 17 23:43:58.543 INFO running `"docker" "rm" "-f" "196593e6798d80ec60456f713dcb1fdbcc286b45a065589a18a5c6fad17ad114"`
Dec 17 23:43:58.656 INFO [stdout] 196593e6798d80ec60456f713dcb1fdbcc286b45a065589a18a5c6fad17ad114