Aug 11 04:24:44.449 INFO checking rfcalcs-0.1.1 against master#f6d43ed84207c7e58f363f46e5a438ff40f2b311 for libc-1
Aug 11 04:24:44.449 INFO running: cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets
Aug 11 04:24:44.449 INFO creating container for: cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets
Aug 11 04:24:44.450 INFO running `"docker" "create" "-v" "/tmp/crater.UI7k9gGEa9oD:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/libc-1/worker-6/master#f6d43ed84207c7e58f363f46e5a438ff40f2b311:/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" "-v" "/home/ec2-user/crater/./work/local/cargo-home/git:/cargo-home/git:rw,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "crater"`
Aug 11 04:24:44.731 INFO blam! 1c5b7d031663199131ae24200b26c3f0f5ca0d2baf2a8176a7fabeacd2ffdf6d
Aug 11 04:24:44.733 INFO running `"docker" "start" "-a" "1c5b7d031663199131ae24200b26c3f0f5ca0d2baf2a8176a7fabeacd2ffdf6d"`
Aug 11 04:24:46.121 INFO kablam!     Checking rfcalcs v0.1.1 (file:///source)
Aug 11 04:24:46.240 INFO kablam! error[E0658]: attributes on expressions are experimental. (see issue #15701)
Aug 11 04:24:46.240 INFO kablam!   --> src/lib.rs:33:9
Aug 11 04:24:46.240 INFO kablam!    |
Aug 11 04:24:46.240 INFO kablam! 33 |         /// Test against precalculated results
Aug 11 04:24:46.240 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 11 04:24:46.240 INFO kablam!    |
Aug 11 04:24:46.240 INFO kablam!    = help: add #![feature(stmt_expr_attributes)] to the crate attributes to enable
Aug 11 04:24:46.240 INFO kablam!    = help: `///` is for documentation comments. For a plain comment, use `//`.
Aug 11 04:24:46.240 INFO kablam! 
Aug 11 04:24:46.435 INFO kablam! error: aborting due to previous error
Aug 11 04:24:46.435 INFO kablam! 
Aug 11 04:24:46.435 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Aug 11 04:24:46.440 INFO kablam! error: Could not compile `rfcalcs`.
Aug 11 04:24:46.441 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 11 04:24:46.639 INFO kablam! error: build failed
Aug 11 04:24:46.640 INFO kablam! su: No module specific data is present
Aug 11 04:24:47.312 INFO running `"docker" "rm" "-f" "1c5b7d031663199131ae24200b26c3f0f5ca0d2baf2a8176a7fabeacd2ffdf6d"`
Aug 11 04:24:47.516 INFO blam! 1c5b7d031663199131ae24200b26c3f0f5ca0d2baf2a8176a7fabeacd2ffdf6d