Aug 17 12:52:19.738 INFO checking rfcalcs-0.1.1 against master#142bb27373126edf8367f526358b6c72ecf1d8df for pr-53426
Aug 17 12:52:19.738 INFO running: cargo +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets
Aug 17 12:52:19.739 INFO creating container for: cargo +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets
Aug 17 12:52:19.739 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-53426/master#142bb27373126edf8367f526358b6c72ecf1d8df:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53426/worker-5/master#142bb27373126edf8367f526358b6c72ecf1d8df:/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 +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "crater"`
Aug 17 12:52:19.942 INFO blam! c21b93e34066ebb6931e537617cc1733e23d92617cd4328a7eb27c519e94265d
Aug 17 12:52:19.945 INFO running `"docker" "start" "-a" "c21b93e34066ebb6931e537617cc1733e23d92617cd4328a7eb27c519e94265d"`
Aug 17 12:52:21.200 INFO kablam!     Checking assert_approx_eq v1.0.0
Aug 17 12:52:21.611 INFO kablam!     Checking rfcalcs v0.1.1 (file:///source)
Aug 17 12:52:21.762 INFO kablam! error[E0658]: attributes on expressions are experimental. (see issue #15701)
Aug 17 12:52:21.762 INFO kablam!   --> src/lib.rs:33:9
Aug 17 12:52:21.762 INFO kablam!    |
Aug 17 12:52:21.762 INFO kablam! 33 |         /// Test against precalculated results
Aug 17 12:52:21.762 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 17 12:52:21.762 INFO kablam!    |
Aug 17 12:52:21.762 INFO kablam!    = help: add #![feature(stmt_expr_attributes)] to the crate attributes to enable
Aug 17 12:52:21.762 INFO kablam!    = help: `///` is for documentation comments. For a plain comment, use `//`.
Aug 17 12:52:21.762 INFO kablam! 
Aug 17 12:52:22.040 INFO kablam! error: aborting due to previous error
Aug 17 12:52:22.040 INFO kablam! 
Aug 17 12:52:22.040 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Aug 17 12:52:22.052 INFO kablam! error: Could not compile `rfcalcs`.
Aug 17 12:52:22.053 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 17 12:52:22.351 INFO kablam! error: build failed
Aug 17 12:52:22.353 INFO kablam! su: No module specific data is present
Aug 17 12:52:22.829 INFO running `"docker" "rm" "-f" "c21b93e34066ebb6931e537617cc1733e23d92617cd4328a7eb27c519e94265d"`
Aug 17 12:52:23.026 INFO blam! c21b93e34066ebb6931e537617cc1733e23d92617cd4328a7eb27c519e94265d