Sep 10 14:35:56.497 INFO checking mio-0.6.15 against master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1 for pr-54090
Sep 10 14:35:56.497 INFO running: cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets
Sep 10 14:35:56.497 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-54090/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-6/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 14:35:56.656 INFO blam! b9dce6cd88d9507a826492ce3244f82797d37ab48d031288ff7abcdab8d25fdc
Sep 10 14:35:56.657 INFO running `"docker" "start" "-a" "b9dce6cd88d9507a826492ce3244f82797d37ab48d031288ff7abcdab8d25fdc"`
Sep 10 14:35:57.521 INFO kablam! usermod: no changes
Sep 10 14:35:57.598 INFO kablam!     Checking mio v0.6.15 (file:///source)
Sep 10 14:36:00.688 INFO kablam! warning: use of deprecated item 'mio::Registration::new': use `new2` instead
Sep 10 14:36:00.688 INFO kablam!   --> benches/bench_poll.rs:23:22
Sep 10 14:36:00.688 INFO kablam!    |
Sep 10 14:36:00.688 INFO kablam! 23 |         let (r, s) = Registration::new(
Sep 10 14:36:00.688 INFO kablam!    |                      ^^^^^^^^^^^^^^^^^
Sep 10 14:36:00.688 INFO kablam!    |
Sep 10 14:36:00.688 INFO kablam!    = note: #[warn(deprecated)] on by default
Sep 10 14:36:00.688 INFO kablam! 
Sep 10 14:36:02.960 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 5.42s
Sep 10 14:36:02.965 INFO kablam! su: No module specific data is present
Sep 10 14:36:03.690 INFO running `"docker" "rm" "-f" "b9dce6cd88d9507a826492ce3244f82797d37ab48d031288ff7abcdab8d25fdc"`
Sep 10 14:36:03.798 INFO blam! b9dce6cd88d9507a826492ce3244f82797d37ab48d031288ff7abcdab8d25fdc