Nov 04 12:49:23.849 INFO checking MainShayne233/concurrency_demo against try#e740b9aa0b624fa39feb39613e76d15bdf57e594 for pr-55655
Nov 04 12:49:23.851 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55655/worker-6/try#e740b9aa0b624fa39feb39613e76d15bdf57e594:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-55655/try#e740b9aa0b624fa39feb39613e76d15bdf57e594:/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 +e740b9aa0b624fa39feb39613e76d15bdf57e594-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 04 12:49:24.273 INFO blam! 48554b827e109c602f906884fed6acee5add2fe241ca8ce7a52f7ed68c835aba
Nov 04 12:49:24.283 INFO running `"docker" "start" "-a" "48554b827e109c602f906884fed6acee5add2fe241ca8ce7a52f7ed68c835aba"`
Nov 04 12:49:25.355 INFO kablam! usermod: no changes
Nov 04 12:49:25.407 INFO kablam!     Checking concurrency_demo v0.1.0 (/source)
Nov 04 12:49:25.928 INFO kablam! warning: field is never used: `workers`
Nov 04 12:49:25.929 INFO kablam!  --> src/lib.rs:7:5
Nov 04 12:49:25.929 INFO kablam!   |
Nov 04 12:49:25.929 INFO kablam! 7 |     workers: Vec<Worker>,
Nov 04 12:49:25.929 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^
Nov 04 12:49:25.929 INFO kablam!   |
Nov 04 12:49:25.929 INFO kablam!   = note: #[warn(dead_code)] on by default
Nov 04 12:49:25.930 INFO kablam! 
Nov 04 12:49:25.930 INFO kablam! warning: field is never used: `id`
Nov 04 12:49:25.930 INFO kablam!   --> src/lib.rs:49:5
Nov 04 12:49:25.930 INFO kablam!    |
Nov 04 12:49:25.930 INFO kablam! 49 |     id: usize,
Nov 04 12:49:25.931 INFO kablam!    |     ^^^^^^^^^
Nov 04 12:49:25.931 INFO kablam! 
Nov 04 12:49:25.931 INFO kablam! warning: field is never used: `thread`
Nov 04 12:49:25.931 INFO kablam!   --> src/lib.rs:50:5
Nov 04 12:49:25.931 INFO kablam!    |
Nov 04 12:49:25.932 INFO kablam! 50 |     thread: thread::JoinHandle<()>,
Nov 04 12:49:25.932 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 04 12:49:25.932 INFO kablam! 
Nov 04 12:49:26.183 INFO kablam! warning: field is never used: `workers`
Nov 04 12:49:26.183 INFO kablam!  --> src/lib.rs:7:5
Nov 04 12:49:26.183 INFO kablam!   |
Nov 04 12:49:26.183 INFO kablam! 7 |     workers: Vec<Worker>,
Nov 04 12:49:26.183 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^
Nov 04 12:49:26.204 INFO kablam!   |
Nov 04 12:49:26.204 INFO kablam!   = note: #[warn(dead_code)] on by default
Nov 04 12:49:26.204 INFO kablam! 
Nov 04 12:49:26.204 INFO kablam! warning: field is never used: `id`
Nov 04 12:49:26.204 INFO kablam!   --> src/lib.rs:49:5
Nov 04 12:49:26.204 INFO kablam!    |
Nov 04 12:49:26.204 INFO kablam! 49 |     id: usize,
Nov 04 12:49:26.204 INFO kablam!    |     ^^^^^^^^^
Nov 04 12:49:26.204 INFO kablam! 
Nov 04 12:49:26.204 INFO kablam! warning: field is never used: `thread`
Nov 04 12:49:26.204 INFO kablam!   --> src/lib.rs:50:5
Nov 04 12:49:26.204 INFO kablam!    |
Nov 04 12:49:26.204 INFO kablam! 50 |     thread: thread::JoinHandle<()>,
Nov 04 12:49:26.204 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 04 12:49:26.205 INFO kablam! 
Nov 04 12:49:26.791 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.41s
Nov 04 12:49:26.799 INFO kablam! su: No module specific data is present
Nov 04 12:49:27.519 INFO running `"docker" "rm" "-f" "48554b827e109c602f906884fed6acee5add2fe241ca8ce7a52f7ed68c835aba"`
Nov 04 12:49:27.782 INFO blam! 48554b827e109c602f906884fed6acee5add2fe241ca8ce7a52f7ed68c835aba