Sep 10 22:32:45.670 INFO checking atomic_ring_buffer-1.0.0 against master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1 for pr-54090
Sep 10 22:32:45.670 INFO running: cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets
Sep 10 22:32:45.670 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-54090/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-1/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/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 +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 22:32:45.886 INFO blam! eecc03b24cad28fd46c2330f589afe84f19fcef4bb4fa470656668129ecbd97e
Sep 10 22:32:45.888 INFO running `"docker" "start" "-a" "eecc03b24cad28fd46c2330f589afe84f19fcef4bb4fa470656668129ecbd97e"`
Sep 10 22:32:46.867 INFO kablam! usermod: no changes
Sep 10 22:32:46.900 INFO kablam!     Checking atomic_ring_buffer v1.0.0 (file:///source)
Sep 10 22:32:47.162 INFO kablam! warning: unused `#[macro_use]` import
Sep 10 22:32:47.162 INFO kablam!  --> src/lib.rs:9:1
Sep 10 22:32:47.162 INFO kablam!   |
Sep 10 22:32:47.162 INFO kablam! 9 | #[macro_use]
Sep 10 22:32:47.162 INFO kablam!   | ^^^^^^^^^^^^
Sep 10 22:32:47.162 INFO kablam!   |
Sep 10 22:32:47.162 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 10 22:32:47.162 INFO kablam! 
Sep 10 22:32:47.606 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
Sep 10 22:32:47.614 INFO kablam! su: No module specific data is present
Sep 10 22:32:48.506 INFO running `"docker" "rm" "-f" "eecc03b24cad28fd46c2330f589afe84f19fcef4bb4fa470656668129ecbd97e"`
Sep 10 22:32:48.626 INFO blam! eecc03b24cad28fd46c2330f589afe84f19fcef4bb4fa470656668129ecbd97e