Sep 14 06:18:55.704 INFO checking workerpool-1.1.1 against master#90d36fb5905bbe5004f5b465ea14b53d10dae260 for pr-53578-1
Sep 14 06:18:55.704 INFO running: cargo +90d36fb5905bbe5004f5b465ea14b53d10dae260-alt check --frozen --all --all-targets
Sep 14 06:18:55.704 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53578-1/master#90d36fb5905bbe5004f5b465ea14b53d10dae260:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578-1/worker-0/master#90d36fb5905bbe5004f5b465ea14b53d10dae260:/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=1000" "-e" "CMD=cargo +90d36fb5905bbe5004f5b465ea14b53d10dae260-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 14 06:18:56.098 INFO blam! 59b901e2155ca7a8df490a1d986e1f2eba8e0975b3776dbd4f1ba599b5128f5d
Sep 14 06:18:56.100 INFO running `"docker" "start" "-a" "59b901e2155ca7a8df490a1d986e1f2eba8e0975b3776dbd4f1ba599b5128f5d"`
Sep 14 06:18:57.475 INFO kablam! usermod: no changes
Sep 14 06:18:57.506 INFO kablam!     Checking workerpool v1.1.1 (file:///source)
Sep 14 06:18:58.067 INFO kablam! warning: unused arithmetic operation which must be used
Sep 14 06:18:58.067 INFO kablam!     --> src/lib.rs:1070:46
Sep 14 06:18:58.067 INFO kablam!      |
Sep 14 06:18:58.068 INFO kablam! 1070 |             pool.execute(Thunk::of(move || { 1 + 1; }));
Sep 14 06:18:58.068 INFO kablam!      |                                              ^^^^^
Sep 14 06:18:58.068 INFO kablam!      |
Sep 14 06:18:58.068 INFO kablam!      = note: #[warn(unused_must_use)] on by default
Sep 14 06:18:58.068 INFO kablam! 
Sep 14 06:18:58.085 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
Sep 14 06:18:58.087 INFO kablam! su: No module specific data is present
Sep 14 06:18:58.889 INFO running `"docker" "rm" "-f" "59b901e2155ca7a8df490a1d986e1f2eba8e0975b3776dbd4f1ba599b5128f5d"`
Sep 14 06:18:58.980 INFO blam! 59b901e2155ca7a8df490a1d986e1f2eba8e0975b3776dbd4f1ba599b5128f5d