Sep 10 13:59:46.708 INFO checking nix-0.11.0 against try#3a2610c2a16575649896925631bf8cec4f4b1961 for pr-54090
Sep 10 13:59:46.708 INFO running: cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets
Sep 10 13:59:46.708 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-54090/try#3a2610c2a16575649896925631bf8cec4f4b1961:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-1/try#3a2610c2a16575649896925631bf8cec4f4b1961:/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 +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 13:59:47.011 INFO blam! 4688da15caa80da187915bf55e656e2d1446acf02fe867629a94c90d934b64d9
Sep 10 13:59:47.013 INFO running `"docker" "start" "-a" "4688da15caa80da187915bf55e656e2d1446acf02fe867629a94c90d934b64d9"`
Sep 10 13:59:47.932 INFO kablam! usermod: no changes
Sep 10 13:59:48.021 INFO kablam!    Compiling nix v0.11.0 (file:///source)
Sep 10 13:59:55.301 INFO kablam! warning: unused import: `std::os::unix::io::RawFd`
Sep 10 13:59:55.301 INFO kablam!  --> test/sys/test_select.rs:5:5
Sep 10 13:59:55.301 INFO kablam!   |
Sep 10 13:59:55.301 INFO kablam! 5 | use std::os::unix::io::RawFd;
Sep 10 13:59:55.301 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 13:59:55.301 INFO kablam!   |
Sep 10 13:59:55.301 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 10 13:59:55.301 INFO kablam! 
Sep 10 13:59:56.664 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 8.70s
Sep 10 13:59:56.673 INFO kablam! su: No module specific data is present
Sep 10 13:59:57.560 INFO running `"docker" "rm" "-f" "4688da15caa80da187915bf55e656e2d1446acf02fe867629a94c90d934b64d9"`
Sep 10 13:59:57.682 INFO blam! 4688da15caa80da187915bf55e656e2d1446acf02fe867629a94c90d934b64d9