Sep 06 03:18:04.311 INFO checking nix-0.11.0 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 06 03:18:04.311 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 06 03:18:04.311 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-7/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-7/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/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 +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 03:18:04.470 INFO blam! 955013e3c40ae9694be7b81834af4bccfbdcb071680ba69d6c5fddfb8222794b
Sep 06 03:18:04.472 INFO running `"docker" "start" "-a" "955013e3c40ae9694be7b81834af4bccfbdcb071680ba69d6c5fddfb8222794b"`
Sep 06 03:18:05.345 INFO kablam! usermod: no changes
Sep 06 03:18:05.418 INFO kablam!    Compiling nix v0.11.0 (file:///source)
Sep 06 03:18:13.787 INFO kablam! warning: unused import: `std::os::unix::io::RawFd`
Sep 06 03:18:13.787 INFO kablam!  --> test/sys/test_select.rs:5:5
Sep 06 03:18:13.787 INFO kablam!   |
Sep 06 03:18:13.787 INFO kablam! 5 | use std::os::unix::io::RawFd;
Sep 06 03:18:13.787 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^
Sep 06 03:18:13.787 INFO kablam!   |
Sep 06 03:18:13.787 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 06 03:18:13.787 INFO kablam! 
Sep 06 03:18:14.954 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 9.58s
Sep 06 03:18:14.956 INFO kablam! su: No module specific data is present
Sep 06 03:18:15.640 INFO running `"docker" "rm" "-f" "955013e3c40ae9694be7b81834af4bccfbdcb071680ba69d6c5fddfb8222794b"`
Sep 06 03:18:15.706 INFO blam! 955013e3c40ae9694be7b81834af4bccfbdcb071680ba69d6c5fddfb8222794b