Nov 01 15:07:33.458 INFO checking threadpool-1.7.1 against master#05812fa8c588473f03e3fa7cf59cd84f4f37c715 for pr-55538
Nov 01 15:07:33.460 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-0/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-55538/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/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 +05812fa8c588473f03e3fa7cf59cd84f4f37c715-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 01 15:07:33.871 INFO blam! 86ef54eafd7500d047aeffde1f037a5cc1a05f8d2796cf8b070803fb984561f2
Nov 01 15:07:33.881 INFO running `"docker" "start" "-a" "86ef54eafd7500d047aeffde1f037a5cc1a05f8d2796cf8b070803fb984561f2"`
Nov 01 15:07:35.157 INFO kablam! usermod: no changes
Nov 01 15:07:35.218 INFO kablam!     Checking threadpool v1.7.1 (/source)
Nov 01 15:07:36.316 INFO kablam! warning: unused arithmetic operation that must be used
Nov 01 15:07:36.317 INFO kablam!    --> src/lib.rs:815:36
Nov 01 15:07:36.317 INFO kablam!     |
Nov 01 15:07:36.317 INFO kablam! 815 |             pool.execute(move || { 1 + 1; });
Nov 01 15:07:36.317 INFO kablam!     |                                    ^^^^^
Nov 01 15:07:36.318 INFO kablam!     |
Nov 01 15:07:36.318 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Nov 01 15:07:36.318 INFO kablam! 
Nov 01 15:07:36.333 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
Nov 01 15:07:36.340 INFO kablam! su: No module specific data is present
Nov 01 15:07:36.812 INFO running `"docker" "rm" "-f" "86ef54eafd7500d047aeffde1f037a5cc1a05f8d2796cf8b070803fb984561f2"`
Nov 01 15:07:37.072 INFO blam! 86ef54eafd7500d047aeffde1f037a5cc1a05f8d2796cf8b070803fb984561f2