Aug 31 16:40:00.250 INFO checking rfcalcs-0.1.1 against master#d0d81b7fc1421859ba0218e8a437af29ae3b0967 for pr-53578
Aug 31 16:40:00.250 INFO running: cargo +d0d81b7fc1421859ba0218e8a437af29ae3b0967-alt check --frozen --all --all-targets
Aug 31 16:40:00.250 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53578/master#d0d81b7fc1421859ba0218e8a437af29ae3b0967:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578/worker-2/master#d0d81b7fc1421859ba0218e8a437af29ae3b0967:/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 +d0d81b7fc1421859ba0218e8a437af29ae3b0967-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 31 16:40:00.426 INFO blam! fa9e5b48ab0bd77fec1bac846785dda7ce75fd131385b550258942b434f409d8
Aug 31 16:40:00.428 INFO running `"docker" "start" "-a" "fa9e5b48ab0bd77fec1bac846785dda7ce75fd131385b550258942b434f409d8"`
Aug 31 16:40:01.070 INFO kablam!     Checking rfcalcs v0.1.1 (file:///source)
Aug 31 16:40:01.137 INFO kablam! error[E0658]: attributes on expressions are experimental. (see issue #15701)
Aug 31 16:40:01.137 INFO kablam!   --> src/lib.rs:33:9
Aug 31 16:40:01.137 INFO kablam!    |
Aug 31 16:40:01.137 INFO kablam! 33 |         /// Test against precalculated results
Aug 31 16:40:01.137 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 31 16:40:01.137 INFO kablam!    |
Aug 31 16:40:01.137 INFO kablam!    = help: add #![feature(stmt_expr_attributes)] to the crate attributes to enable
Aug 31 16:40:01.137 INFO kablam!    = help: `///` is for documentation comments. For a plain comment, use `//`.
Aug 31 16:40:01.137 INFO kablam! 
Aug 31 16:40:01.486 INFO kablam! warning: the feature `use_extern_macros` has been stable since 1.30.0 and no longer requires an attribute to enable
Aug 31 16:40:01.486 INFO kablam!  --> src/lib.rs:1:12
Aug 31 16:40:01.486 INFO kablam!   |
Aug 31 16:40:01.486 INFO kablam! 1 | #![feature(use_extern_macros)]
Aug 31 16:40:01.486 INFO kablam!   |            ^^^^^^^^^^^^^^^^^
Aug 31 16:40:01.486 INFO kablam!   |
Aug 31 16:40:01.486 INFO kablam!   = note: #[warn(stable_features)] on by default
Aug 31 16:40:01.486 INFO kablam! 
Aug 31 16:40:01.543 INFO kablam! error: aborting due to previous error
Aug 31 16:40:01.543 INFO kablam! 
Aug 31 16:40:01.543 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Aug 31 16:40:01.549 INFO kablam! error: Could not compile `rfcalcs`.
Aug 31 16:40:01.549 INFO kablam! 
Aug 31 16:40:01.549 INFO kablam! To learn more, run the command again with --verbose.
Aug 31 16:40:01.550 INFO kablam! su: No module specific data is present
Aug 31 16:40:02.108 INFO running `"docker" "rm" "-f" "fa9e5b48ab0bd77fec1bac846785dda7ce75fd131385b550258942b434f409d8"`
Aug 31 16:40:02.221 INFO blam! fa9e5b48ab0bd77fec1bac846785dda7ce75fd131385b550258942b434f409d8