Sep 04 03:18:12.944 INFO checking tt-num-0.1.0 against try#5fe695a3844714c70e8f7731a553f7947987a68a for pr-53913
Sep 04 03:18:12.944 INFO running: cargo +5fe695a3844714c70e8f7731a553f7947987a68a-alt check --frozen --all --all-targets
Sep 04 03:18:12.944 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53913/try#5fe695a3844714c70e8f7731a553f7947987a68a:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53913/worker-2/try#5fe695a3844714c70e8f7731a553f7947987a68a:/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=500" "-e" "CMD=cargo +5fe695a3844714c70e8f7731a553f7947987a68a-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 03:18:13.163 INFO blam! b4ac61d3854e9622033f0d30d4a606caa6837195635f9b18196a6bc2965cb9e9
Sep 04 03:18:13.165 INFO running `"docker" "start" "-a" "b4ac61d3854e9622033f0d30d4a606caa6837195635f9b18196a6bc2965cb9e9"`
Sep 04 03:18:13.906 INFO kablam!     Checking tt-call v1.0.2
Sep 04 03:18:14.268 INFO kablam!     Checking tt-num v0.1.0 (file:///source)
Sep 04 03:18:14.939 INFO kablam! error[E0658]: access to extern crates through prelude is experimental (see issue #44660)
Sep 04 03:18:14.939 INFO kablam!  --> <tt_atoi macros>:2:1
Sep 04 03:18:14.939 INFO kablam!   |
Sep 04 03:18:14.939 INFO kablam! 2 | tt_call :: tt_return ! { $ caller input = [ { $ ( $ a ) * } ] } } ; {
Sep 04 03:18:14.939 INFO kablam!   | ^^^^^^^
Sep 04 03:18:14.939 INFO kablam!   |
Sep 04 03:18:14.939 INFO kablam!   = help: add #![feature(extern_prelude)] to the crate attributes to enable
Sep 04 03:18:14.939 INFO kablam! 
Sep 04 03:18:15.121 INFO kablam! error: aborting due to previous error
Sep 04 03:18:15.121 INFO kablam! 
Sep 04 03:18:15.121 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 04 03:18:15.129 INFO kablam! error: Could not compile `tt-num`.
Sep 04 03:18:15.129 INFO kablam! 
Sep 04 03:18:15.129 INFO kablam! To learn more, run the command again with --verbose.
Sep 04 03:18:15.131 INFO kablam! su: No module specific data is present
Sep 04 03:18:15.590 INFO running `"docker" "rm" "-f" "b4ac61d3854e9622033f0d30d4a606caa6837195635f9b18196a6bc2965cb9e9"`
Sep 04 03:18:15.720 INFO blam! b4ac61d3854e9622033f0d30d4a606caa6837195635f9b18196a6bc2965cb9e9