Sep 19 16:36:09.674 INFO checking tt-num-0.1.0 against try#fcacde07b66fe513e52c41b73aef91bcc121905b for pr-54346
Sep 19 16:36:09.674 INFO running: cargo +fcacde07b66fe513e52c41b73aef91bcc121905b-alt check --frozen --all --all-targets
Sep 19 16:36:09.675 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-7/pr-54346/try#fcacde07b66fe513e52c41b73aef91bcc121905b:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54346/worker-7/try#fcacde07b66fe513e52c41b73aef91bcc121905b:/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 +fcacde07b66fe513e52c41b73aef91bcc121905b-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 19 16:36:10.063 INFO blam! 80140e29190881a2f3dfa25251b61b01f9367ef96964762008ff2a1589b92fd7
Sep 19 16:36:10.065 INFO running `"docker" "start" "-a" "80140e29190881a2f3dfa25251b61b01f9367ef96964762008ff2a1589b92fd7"`
Sep 19 16:36:11.620 INFO kablam! usermod: no changes
Sep 19 16:36:11.699 INFO kablam!     Checking tt-call v1.0.4
Sep 19 16:36:12.095 INFO kablam!     Checking tt-num v0.1.0 (/source)
Sep 19 16:36:12.775 INFO kablam! error[E0658]: access to extern crates through prelude is experimental (see issue #44660)
Sep 19 16:36:12.775 INFO kablam!  --> <tt_atoi macros>:2:1
Sep 19 16:36:12.775 INFO kablam!   |
Sep 19 16:36:12.775 INFO kablam! 2 | tt_call :: tt_return ! { $ caller input = [ { $ ( $ a ) * } ] } } ; {
Sep 19 16:36:12.775 INFO kablam!   | ^^^^^^^
Sep 19 16:36:12.775 INFO kablam!   |
Sep 19 16:36:12.775 INFO kablam!   = help: add #![feature(extern_prelude)] to the crate attributes to enable
Sep 19 16:36:12.775 INFO kablam! 
Sep 19 16:36:12.863 INFO kablam! error: aborting due to previous error
Sep 19 16:36:12.863 INFO kablam! 
Sep 19 16:36:12.863 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 19 16:36:12.866 INFO kablam! error: Could not compile `tt-num`.
Sep 19 16:36:12.867 INFO kablam! 
Sep 19 16:36:12.867 INFO kablam! To learn more, run the command again with --verbose.
Sep 19 16:36:12.867 INFO kablam! su: No module specific data is present
Sep 19 16:36:13.833 INFO running `"docker" "rm" "-f" "80140e29190881a2f3dfa25251b61b01f9367ef96964762008ff2a1589b92fd7"`
Sep 19 16:36:14.135 INFO blam! 80140e29190881a2f3dfa25251b61b01f9367ef96964762008ff2a1589b92fd7