Sep 06 00:20:13.524 INFO checking selectors-0.20.0 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 06 00:20:13.524 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 06 00:20:13.525 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-4/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 00:20:13.678 INFO blam! 7a9de509194e1c2983efb48cb62b620bb80762738a7a98d892eb6dc5b81cf567
Sep 06 00:20:13.679 INFO running `"docker" "start" "-a" "7a9de509194e1c2983efb48cb62b620bb80762738a7a98d892eb6dc5b81cf567"`
Sep 06 00:20:14.197 INFO kablam! usermod: no changes
Sep 06 00:20:14.293 INFO kablam!     Checking thin-slice v0.1.1
Sep 06 00:20:14.294 INFO kablam!     Checking dtoa-short v0.3.2
Sep 06 00:20:14.294 INFO kablam!     Checking servo_arc v0.1.1
Sep 06 00:20:14.294 INFO kablam!    Compiling syn v0.14.9
Sep 06 00:20:14.294 INFO kablam!    Compiling selectors v0.20.0 (file:///source)
Sep 06 00:20:34.258 INFO kablam!    Compiling cssparser v0.24.0
Sep 06 00:20:34.258 INFO kablam!    Compiling cssparser-macros v0.3.4
Sep 06 00:20:51.413 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 37.19s
Sep 06 00:20:51.418 INFO kablam! su: No module specific data is present
Sep 06 00:20:52.275 INFO running `"docker" "rm" "-f" "7a9de509194e1c2983efb48cb62b620bb80762738a7a98d892eb6dc5b81cf567"`
Sep 06 00:20:52.392 INFO blam! 7a9de509194e1c2983efb48cb62b620bb80762738a7a98d892eb6dc5b81cf567