Sep 17 15:42:30.969 INFO checking tt-num-0.1.0 against try#cfeeefe83c83bceb55d60d7e2be173db7597ed50 for pr-54033
Sep 17 15:42:30.969 INFO running: cargo +cfeeefe83c83bceb55d60d7e2be173db7597ed50-alt check --frozen --all --all-targets
Sep 17 15:42:30.969 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-7/pr-54033/try#cfeeefe83c83bceb55d60d7e2be173db7597ed50:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54033/worker-7/try#cfeeefe83c83bceb55d60d7e2be173db7597ed50:/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 +cfeeefe83c83bceb55d60d7e2be173db7597ed50-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 17 15:42:31.375 INFO blam! 44659764c07b039d5b4f045d4e5610a01084f9e1b0c4b30c9146ca3b52d2068c
Sep 17 15:42:31.383 INFO running `"docker" "start" "-a" "44659764c07b039d5b4f045d4e5610a01084f9e1b0c4b30c9146ca3b52d2068c"`
Sep 17 15:42:32.666 INFO kablam! usermod: no changes
Sep 17 15:42:32.753 INFO kablam!     Checking tt-call v1.0.3
Sep 17 15:42:33.067 INFO kablam!     Checking tt-num v0.1.0 (/source)
Sep 17 15:42:33.862 INFO kablam! error[E0658]: access to extern crates through prelude is experimental (see issue #44660)
Sep 17 15:42:33.863 INFO kablam!  --> <tt_atoi macros>:2:1
Sep 17 15:42:33.863 INFO kablam!   |
Sep 17 15:42:33.863 INFO kablam! 2 | tt_call :: tt_return ! { $ caller input = [ { $ ( $ a ) * } ] } } ; {
Sep 17 15:42:33.863 INFO kablam!   | ^^^^^^^
Sep 17 15:42:33.863 INFO kablam!   |
Sep 17 15:42:33.863 INFO kablam!   = help: add #![feature(extern_prelude)] to the crate attributes to enable
Sep 17 15:42:33.863 INFO kablam! 
Sep 17 15:42:33.935 INFO kablam! error: aborting due to previous error
Sep 17 15:42:33.935 INFO kablam! 
Sep 17 15:42:33.935 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 17 15:42:33.935 INFO kablam! error: Could not compile `tt-num`.
Sep 17 15:42:33.935 INFO kablam! 
Sep 17 15:42:33.935 INFO kablam! To learn more, run the command again with --verbose.
Sep 17 15:42:33.935 INFO kablam! su: No module specific data is present
Sep 17 15:42:35.298 INFO running `"docker" "rm" "-f" "44659764c07b039d5b4f045d4e5610a01084f9e1b0c4b30c9146ca3b52d2068c"`
Sep 17 15:42:35.588 INFO blam! 44659764c07b039d5b4f045d4e5610a01084f9e1b0c4b30c9146ca3b52d2068c