Nov 07 03:57:47.501 INFO checking MainShayne233/concurrency_demo against master#24e66c28980442a48d9458f1a4f9b76cc722dc8a for pr-55687
Nov 07 03:57:47.501 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55687/worker-5/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-55687/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/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 +24e66c28980442a48d9458f1a4f9b76cc722dc8a-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 07 03:57:47.900 INFO blam! b4b02f868ecb0112c4579022c3b7d51958cfa53404eb8beeae2ce62743f84cff
Nov 07 03:57:47.902 INFO running `"docker" "start" "-a" "b4b02f868ecb0112c4579022c3b7d51958cfa53404eb8beeae2ce62743f84cff"`
Nov 07 03:57:49.408 INFO kablam! usermod: no changes
Nov 07 03:57:49.492 INFO kablam!     Checking concurrency_demo v0.1.0 (/source)
Nov 07 03:57:50.324 INFO kablam! warning: field is never used: `workers`
Nov 07 03:57:50.324 INFO kablam!  --> src/lib.rs:7:5
Nov 07 03:57:50.324 INFO kablam!   |
Nov 07 03:57:50.324 INFO kablam! 7 |     workers: Vec<Worker>,
Nov 07 03:57:50.324 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^
Nov 07 03:57:50.324 INFO kablam!   |
Nov 07 03:57:50.324 INFO kablam!   = note: #[warn(dead_code)] on by default
Nov 07 03:57:50.324 INFO kablam! 
Nov 07 03:57:50.326 INFO kablam! warning: field is never used: `id`
Nov 07 03:57:50.326 INFO kablam!   --> src/lib.rs:49:5
Nov 07 03:57:50.326 INFO kablam!    |
Nov 07 03:57:50.326 INFO kablam! 49 |     id: usize,
Nov 07 03:57:50.326 INFO kablam!    |     ^^^^^^^^^
Nov 07 03:57:50.326 INFO kablam! 
Nov 07 03:57:50.326 INFO kablam! warning: field is never used: `thread`
Nov 07 03:57:50.326 INFO kablam!   --> src/lib.rs:50:5
Nov 07 03:57:50.326 INFO kablam!    |
Nov 07 03:57:50.326 INFO kablam! 50 |     thread: thread::JoinHandle<()>,
Nov 07 03:57:50.326 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 07 03:57:50.326 INFO kablam! 
Nov 07 03:57:50.372 INFO kablam! warning: field is never used: `workers`
Nov 07 03:57:50.372 INFO kablam!  --> src/lib.rs:7:5
Nov 07 03:57:50.372 INFO kablam!   |
Nov 07 03:57:50.372 INFO kablam! 7 |     workers: Vec<Worker>,
Nov 07 03:57:50.372 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^
Nov 07 03:57:50.372 INFO kablam!   |
Nov 07 03:57:50.372 INFO kablam!   = note: #[warn(dead_code)] on by default
Nov 07 03:57:50.372 INFO kablam! 
Nov 07 03:57:50.380 INFO kablam! warning: field is never used: `id`
Nov 07 03:57:50.381 INFO kablam!   --> src/lib.rs:49:5
Nov 07 03:57:50.381 INFO kablam!    |
Nov 07 03:57:50.381 INFO kablam! 49 |     id: usize,
Nov 07 03:57:50.381 INFO kablam!    |     ^^^^^^^^^
Nov 07 03:57:50.381 INFO kablam! 
Nov 07 03:57:50.381 INFO kablam! warning: field is never used: `thread`
Nov 07 03:57:50.381 INFO kablam!   --> src/lib.rs:50:5
Nov 07 03:57:50.381 INFO kablam!    |
Nov 07 03:57:50.381 INFO kablam! 50 |     thread: thread::JoinHandle<()>,
Nov 07 03:57:50.381 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 07 03:57:50.381 INFO kablam! 
Nov 07 03:57:51.277 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.82s
Nov 07 03:57:51.283 INFO kablam! su: No module specific data is present
Nov 07 03:57:52.385 INFO running `"docker" "rm" "-f" "b4b02f868ecb0112c4579022c3b7d51958cfa53404eb8beeae2ce62743f84cff"`
Nov 07 03:57:52.620 INFO blam! b4b02f868ecb0112c4579022c3b7d51958cfa53404eb8beeae2ce62743f84cff