Sep 03 22:02:58.146 INFO checking workerpool-1.1.1 against try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0 for pr-53893
Sep 03 22:02:58.146 INFO running: cargo +6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0-alt check --frozen --all --all-targets
Sep 03 22:02:58.146 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53893/try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-3/try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 03 22:02:58.301 INFO blam! bb631d6d2180ec0a1a4bffa7e4840c8b331b6210cff2e24d4b33934438e9d3de
Sep 03 22:02:58.303 INFO running `"docker" "start" "-a" "bb631d6d2180ec0a1a4bffa7e4840c8b331b6210cff2e24d4b33934438e9d3de"`
Sep 03 22:02:59.006 INFO kablam!     Checking workerpool v1.1.1 (file:///source)
Sep 03 22:03:00.108 INFO kablam! warning: unused arithmetic operation which must be used
Sep 03 22:03:00.108 INFO kablam!     --> src/lib.rs:1070:46
Sep 03 22:03:00.108 INFO kablam!      |
Sep 03 22:03:00.108 INFO kablam! 1070 |             pool.execute(Thunk::of(move || { 1 + 1; }));
Sep 03 22:03:00.108 INFO kablam!      |                                              ^^^^^
Sep 03 22:03:00.108 INFO kablam!      |
Sep 03 22:03:00.108 INFO kablam!      = note: #[warn(unused_must_use)] on by default
Sep 03 22:03:00.109 INFO kablam! 
Sep 03 22:03:00.137 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.14s
Sep 03 22:03:00.141 INFO kablam! su: No module specific data is present
Sep 03 22:03:00.589 INFO running `"docker" "rm" "-f" "bb631d6d2180ec0a1a4bffa7e4840c8b331b6210cff2e24d4b33934438e9d3de"`
Sep 03 22:03:00.704 INFO blam! bb631d6d2180ec0a1a4bffa7e4840c8b331b6210cff2e24d4b33934438e9d3de