Sep 21 01:28:45.084 INFO checking tt-num-0.1.0 against master#f7f4c500b46603386e940f116b469c7adc043a6d for pr-54394 Sep 21 01:28:45.084 INFO running: cargo +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets Sep 21 01:28:45.084 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-54394/master#f7f4c500b46603386e940f116b469c7adc043a6d:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-6/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 01:28:45.354 INFO blam! 4af828f36b7d4623df92fda4bf4df6e122d63296b1ae60ad4bc088d560d9f3f8 Sep 21 01:28:45.356 INFO running `"docker" "start" "-a" "4af828f36b7d4623df92fda4bf4df6e122d63296b1ae60ad4bc088d560d9f3f8"` Sep 21 01:28:46.593 INFO kablam! usermod: no changes Sep 21 01:28:46.642 INFO kablam! Checking tt-call v1.0.4 Sep 21 01:28:47.009 INFO kablam! Checking tt-num v0.1.0 (/source) Sep 21 01:28:47.878 INFO kablam! error[E0658]: access to extern crates through prelude is experimental (see issue #44660) Sep 21 01:28:47.879 INFO kablam! --> :2:1 Sep 21 01:28:47.879 INFO kablam! | Sep 21 01:28:47.880 INFO kablam! 2 | tt_call :: tt_return ! { $ caller input = [ { $ ( $ a ) * } ] } } ; { Sep 21 01:28:47.880 INFO kablam! | ^^^^^^^ Sep 21 01:28:47.880 INFO kablam! | Sep 21 01:28:47.881 INFO kablam! = help: add #![feature(extern_prelude)] to the crate attributes to enable Sep 21 01:28:47.881 INFO kablam! Sep 21 01:28:47.998 INFO kablam! error: aborting due to previous error Sep 21 01:28:47.999 INFO kablam! Sep 21 01:28:47.999 INFO kablam! For more information about this error, try `rustc --explain E0658`. Sep 21 01:28:48.009 INFO kablam! error: Could not compile `tt-num`. Sep 21 01:28:48.009 INFO kablam! Sep 21 01:28:48.009 INFO kablam! To learn more, run the command again with --verbose. Sep 21 01:28:48.013 INFO kablam! su: No module specific data is present Sep 21 01:28:49.746 INFO running `"docker" "rm" "-f" "4af828f36b7d4623df92fda4bf4df6e122d63296b1ae60ad4bc088d560d9f3f8"` Sep 21 01:28:49.869 INFO blam! 4af828f36b7d4623df92fda4bf4df6e122d63296b1ae60ad4bc088d560d9f3f8