Dec 19 12:41:12.449 INFO checking michaltakac/rust-webserver against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 12:41:12.449 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/michaltakac/rust-webserver:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 12:41:12.914 INFO [stdout] 8d4f3833ddd30a3b0c77a16841f969dec45afa265bcb84aac539377bf47b0b19
Dec 19 12:41:12.915 INFO running `"docker" "start" "-a" "8d4f3833ddd30a3b0c77a16841f969dec45afa265bcb84aac539377bf47b0b19"`
Dec 19 12:41:14.350 INFO [stderr]     Checking webserver v0.1.0 (/opt/crater/workdir)
Dec 19 12:41:14.680 INFO [stderr] warning: field is never used: `workers`
Dec 19 12:41:14.680 INFO [stderr]  --> src/lib.rs:7:5
Dec 19 12:41:14.680 INFO [stderr]   |
Dec 19 12:41:14.680 INFO [stderr] 7 |     workers: Vec<Worker>,
Dec 19 12:41:14.680 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 19 12:41:14.684 INFO [stderr]   |
Dec 19 12:41:14.684 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 12:41:14.685 INFO [stderr] 
Dec 19 12:41:14.685 INFO [stderr] warning: field is never used: `id`
Dec 19 12:41:14.708 INFO [stderr]   --> src/lib.rs:61:5
Dec 19 12:41:14.708 INFO [stderr]    |
Dec 19 12:41:14.708 INFO [stderr] 61 |     id: usize,
Dec 19 12:41:14.708 INFO [stderr]    |     ^^^^^^^^^
Dec 19 12:41:14.708 INFO [stderr] 
Dec 19 12:41:14.708 INFO [stderr] warning: field is never used: `thread`
Dec 19 12:41:14.708 INFO [stderr]   --> src/lib.rs:62:5
Dec 19 12:41:14.708 INFO [stderr]    |
Dec 19 12:41:14.708 INFO [stderr] 62 |     thread: thread::JoinHandle<()>,
Dec 19 12:41:14.708 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:41:14.708 INFO [stderr] 
Dec 19 12:41:14.768 INFO [stderr] warning: field is never used: `workers`
Dec 19 12:41:14.768 INFO [stderr]  --> src/lib.rs:7:5
Dec 19 12:41:14.768 INFO [stderr]   |
Dec 19 12:41:14.768 INFO [stderr] 7 |     workers: Vec<Worker>,
Dec 19 12:41:14.768 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Dec 19 12:41:14.768 INFO [stderr]   |
Dec 19 12:41:14.768 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 12:41:14.768 INFO [stderr] 
Dec 19 12:41:14.768 INFO [stderr] warning: field is never used: `id`
Dec 19 12:41:14.768 INFO [stderr]   --> src/lib.rs:61:5
Dec 19 12:41:14.768 INFO [stderr]    |
Dec 19 12:41:14.768 INFO [stderr] 61 |     id: usize,
Dec 19 12:41:14.768 INFO [stderr]    |     ^^^^^^^^^
Dec 19 12:41:14.768 INFO [stderr] 
Dec 19 12:41:14.768 INFO [stderr] warning: field is never used: `thread`
Dec 19 12:41:14.768 INFO [stderr]   --> src/lib.rs:62:5
Dec 19 12:41:14.768 INFO [stderr]    |
Dec 19 12:41:14.768 INFO [stderr] 62 |     thread: thread::JoinHandle<()>,
Dec 19 12:41:14.768 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:41:14.768 INFO [stderr] 
Dec 19 12:41:15.125 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
Dec 19 12:41:15.986 INFO running `"docker" "inspect" "8d4f3833ddd30a3b0c77a16841f969dec45afa265bcb84aac539377bf47b0b19"`
Dec 19 12:41:16.294 INFO running `"docker" "rm" "-f" "8d4f3833ddd30a3b0c77a16841f969dec45afa265bcb84aac539377bf47b0b19"`
Dec 19 12:41:16.596 INFO [stdout] 8d4f3833ddd30a3b0c77a16841f969dec45afa265bcb84aac539377bf47b0b19