Sep 20 04:46:22.380 INFO checking atomic_ring_buffer-1.0.0 against master#ff6422d7a392acfc8af28994d65af2bbaecea4f6 for pr-54346
Sep 20 04:46:22.380 INFO running: cargo +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets
Sep 20 04:46:22.380 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-54346/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54346/worker-6/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/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 +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 20 04:46:22.550 INFO blam! eedbdaf97f0d1e96069466d83994117b55691fbe5c28ea85f8dedd1640f274d7
Sep 20 04:46:22.551 INFO running `"docker" "start" "-a" "eedbdaf97f0d1e96069466d83994117b55691fbe5c28ea85f8dedd1640f274d7"`
Sep 20 04:46:23.187 INFO kablam! usermod: no changes
Sep 20 04:46:23.239 INFO kablam!     Checking atomic_ring_buffer v1.0.0 (/source)
Sep 20 04:46:23.609 INFO kablam! warning: unused `#[macro_use]` import
Sep 20 04:46:23.609 INFO kablam!  --> src/lib.rs:9:1
Sep 20 04:46:23.609 INFO kablam!   |
Sep 20 04:46:23.609 INFO kablam! 9 | #[macro_use]
Sep 20 04:46:23.609 INFO kablam!   | ^^^^^^^^^^^^
Sep 20 04:46:23.609 INFO kablam!   |
Sep 20 04:46:23.609 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 20 04:46:23.609 INFO kablam! 
Sep 20 04:46:23.918 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
Sep 20 04:46:23.920 INFO kablam! su: No module specific data is present
Sep 20 04:46:24.572 INFO running `"docker" "rm" "-f" "eedbdaf97f0d1e96069466d83994117b55691fbe5c28ea85f8dedd1640f274d7"`
Sep 20 04:46:24.674 INFO blam! eedbdaf97f0d1e96069466d83994117b55691fbe5c28ea85f8dedd1640f274d7