Nov 27 23:38:54.155 INFO checking niclim/rust-server against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 27 23:38:54.157 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-1/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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"`
Nov 27 23:38:54.597 INFO [stdout] 871b73bbf78cb8540cf2ef0918704c76cd19730a1264651c802e1c2a9f31a699
Nov 27 23:38:54.598 INFO running `"docker" "start" "-a" "871b73bbf78cb8540cf2ef0918704c76cd19730a1264651c802e1c2a9f31a699"`
Nov 27 23:38:55.967 INFO [stderr] usermod: no changes
Nov 27 23:38:56.020 INFO [stderr]     Checking ws v0.1.0 (/source)
Nov 27 23:38:56.320 INFO [stderr] warning: field is never used: `workers`
Nov 27 23:38:56.320 INFO [stderr]  --> src/lib.rs:7:5
Nov 27 23:38:56.320 INFO [stderr]   |
Nov 27 23:38:56.320 INFO [stderr] 7 |     workers: Vec<Worker>,
Nov 27 23:38:56.320 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Nov 27 23:38:56.320 INFO [stderr]   |
Nov 27 23:38:56.320 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 27 23:38:56.320 INFO [stderr] 
Nov 27 23:38:56.320 INFO [stderr] warning: field is never used: `id`
Nov 27 23:38:56.320 INFO [stderr]   --> src/lib.rs:63:5
Nov 27 23:38:56.320 INFO [stderr]    |
Nov 27 23:38:56.320 INFO [stderr] 63 |     id: usize,
Nov 27 23:38:56.320 INFO [stderr]    |     ^^^^^^^^^
Nov 27 23:38:56.320 INFO [stderr] 
Nov 27 23:38:56.320 INFO [stderr] warning: field is never used: `thread`
Nov 27 23:38:56.320 INFO [stderr]   --> src/lib.rs:64:5
Nov 27 23:38:56.320 INFO [stderr]    |
Nov 27 23:38:56.320 INFO [stderr] 64 |     thread: thread::JoinHandle<()>,
Nov 27 23:38:56.320 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 23:38:56.339 INFO [stderr] 
Nov 27 23:38:56.440 INFO [stderr] warning: field is never used: `workers`
Nov 27 23:38:56.440 INFO [stderr]  --> src/lib.rs:7:5
Nov 27 23:38:56.440 INFO [stderr]   |
Nov 27 23:38:56.440 INFO [stderr] 7 |     workers: Vec<Worker>,
Nov 27 23:38:56.440 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
Nov 27 23:38:56.440 INFO [stderr]   |
Nov 27 23:38:56.440 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 27 23:38:56.440 INFO [stderr] 
Nov 27 23:38:56.440 INFO [stderr] warning: field is never used: `id`
Nov 27 23:38:56.440 INFO [stderr]   --> src/lib.rs:63:5
Nov 27 23:38:56.440 INFO [stderr]    |
Nov 27 23:38:56.440 INFO [stderr] 63 |     id: usize,
Nov 27 23:38:56.440 INFO [stderr]    |     ^^^^^^^^^
Nov 27 23:38:56.440 INFO [stderr] 
Nov 27 23:38:56.440 INFO [stderr] warning: field is never used: `thread`
Nov 27 23:38:56.440 INFO [stderr]   --> src/lib.rs:64:5
Nov 27 23:38:56.440 INFO [stderr]    |
Nov 27 23:38:56.440 INFO [stderr] 64 |     thread: thread::JoinHandle<()>,
Nov 27 23:38:56.440 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 23:38:56.440 INFO [stderr] 
Nov 27 23:38:56.896 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
Nov 27 23:38:56.904 INFO [stderr] su: No module specific data is present
Nov 27 23:38:57.768 INFO running `"docker" "inspect" "871b73bbf78cb8540cf2ef0918704c76cd19730a1264651c802e1c2a9f31a699"`
Nov 27 23:38:58.102 INFO running `"docker" "rm" "-f" "871b73bbf78cb8540cf2ef0918704c76cd19730a1264651c802e1c2a9f31a699"`
Nov 27 23:38:58.449 INFO [stdout] 871b73bbf78cb8540cf2ef0918704c76cd19730a1264651c802e1c2a9f31a699