Sep 21 06:31:16.335 INFO checking nix-0.11.0 against master#f7f4c500b46603386e940f116b469c7adc043a6d for pr-54394
Sep 21 06:31:16.335 INFO running: cargo +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets
Sep 21 06:31:16.335 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-7/pr-54394/master#f7f4c500b46603386e940f116b469c7adc043a6d:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-7/master#f7f4c500b46603386e940f116b469c7adc043a6d:/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 +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 21 06:31:16.512 INFO blam! 4af78797c8f438f94a40f96ba64bd49a1359e158d87a4b20dfd304465f839aee
Sep 21 06:31:16.513 INFO running `"docker" "start" "-a" "4af78797c8f438f94a40f96ba64bd49a1359e158d87a4b20dfd304465f839aee"`
Sep 21 06:31:17.092 INFO kablam! usermod: no changes
Sep 21 06:31:17.148 INFO kablam!    Compiling nix v0.11.0 (/source)
Sep 21 06:31:23.804 INFO kablam! warning: unused import: `std::os::unix::io::RawFd`
Sep 21 06:31:23.804 INFO kablam!  --> test/sys/test_select.rs:5:5
Sep 21 06:31:23.804 INFO kablam!   |
Sep 21 06:31:23.804 INFO kablam! 5 | use std::os::unix::io::RawFd;
Sep 21 06:31:23.804 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^
Sep 21 06:31:23.804 INFO kablam!   |
Sep 21 06:31:23.804 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 21 06:31:23.804 INFO kablam! 
Sep 21 06:31:25.038 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 7.93s
Sep 21 06:31:25.046 INFO kablam! su: No module specific data is present
Sep 21 06:31:25.845 INFO running `"docker" "rm" "-f" "4af78797c8f438f94a40f96ba64bd49a1359e158d87a4b20dfd304465f839aee"`
Sep 21 06:31:25.930 INFO blam! 4af78797c8f438f94a40f96ba64bd49a1359e158d87a4b20dfd304465f839aee