Aug 30 06:20:45.413 INFO checking rfcalcs-0.1.1 against master#ede55518431154bc761f7b2438cce9078c162700 for pr-53707
Aug 30 06:20:45.413 INFO running: cargo +ede55518431154bc761f7b2438cce9078c162700-alt check --frozen --all --all-targets
Aug 30 06:20:45.413 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53707/master#ede55518431154bc761f7b2438cce9078c162700:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53707/worker-2/master#ede55518431154bc761f7b2438cce9078c162700:/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 +ede55518431154bc761f7b2438cce9078c162700-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 30 06:20:45.703 INFO blam! bb23f687d53553731c9dea221bd85ab88682598bb1126d7e3cb7e34700ec5466
Aug 30 06:20:45.705 INFO running `"docker" "start" "-a" "bb23f687d53553731c9dea221bd85ab88682598bb1126d7e3cb7e34700ec5466"`
Aug 30 06:20:46.835 INFO kablam!     Checking rfcalcs v0.1.1 (file:///source)
Aug 30 06:20:46.883 INFO kablam! error[E0658]: attributes on expressions are experimental. (see issue #15701)
Aug 30 06:20:46.883 INFO kablam!   --> src/lib.rs:33:9
Aug 30 06:20:46.883 INFO kablam!    |
Aug 30 06:20:46.883 INFO kablam! 33 |         /// Test against precalculated results
Aug 30 06:20:46.883 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 30 06:20:46.883 INFO kablam!    |
Aug 30 06:20:46.883 INFO kablam!    = help: add #![feature(stmt_expr_attributes)] to the crate attributes to enable
Aug 30 06:20:46.883 INFO kablam!    = help: `///` is for documentation comments. For a plain comment, use `//`.
Aug 30 06:20:46.883 INFO kablam! 
Aug 30 06:20:47.166 INFO kablam! error: aborting due to previous error
Aug 30 06:20:47.166 INFO kablam! 
Aug 30 06:20:47.166 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Aug 30 06:20:47.172 INFO kablam! error: Could not compile `rfcalcs`.
Aug 30 06:20:47.172 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 30 06:20:47.192 INFO kablam! warning: the feature `use_extern_macros` has been stable since 1.30.0 and no longer requires an attribute to enable
Aug 30 06:20:47.192 INFO kablam!  --> src/lib.rs:1:12
Aug 30 06:20:47.192 INFO kablam!   |
Aug 30 06:20:47.192 INFO kablam! 1 | #![feature(use_extern_macros)]
Aug 30 06:20:47.192 INFO kablam!   |            ^^^^^^^^^^^^^^^^^
Aug 30 06:20:47.192 INFO kablam!   |
Aug 30 06:20:47.192 INFO kablam!   = note: #[warn(stable_features)] on by default
Aug 30 06:20:47.192 INFO kablam! 
Aug 30 06:20:47.220 INFO kablam! error: build failed
Aug 30 06:20:47.222 INFO kablam! su: No module specific data is present
Aug 30 06:20:48.003 INFO running `"docker" "rm" "-f" "bb23f687d53553731c9dea221bd85ab88682598bb1126d7e3cb7e34700ec5466"`
Aug 30 06:20:48.130 INFO blam! bb23f687d53553731c9dea221bd85ab88682598bb1126d7e3cb7e34700ec5466