Jul 12 00:25:36.827 INFO checking rfcalcs-0.1.1 against master#ae5b629efd79de78e6ba7ef493c32857bd7f9cf9 for pr-52234
Jul 12 00:25:36.827 INFO running: cargo +ae5b629efd79de78e6ba7ef493c32857bd7f9cf9-alt check --frozen --all --all-targets
Jul 12 00:25:36.827 INFO creating container for: cargo +ae5b629efd79de78e6ba7ef493c32857bd7f9cf9-alt check --frozen --all --all-targets
Jul 12 00:25:36.827 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-52234/master#ae5b629efd79de78e6ba7ef493c32857bd7f9cf9:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-52234/worker-1/master#ae5b629efd79de78e6ba7ef493c32857bd7f9cf9:/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 +ae5b629efd79de78e6ba7ef493c32857bd7f9cf9-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Jul 12 00:25:37.051 INFO blam! fb9883ca207102b5ce757b8548243d9012bd4b2fb35606e44511e3b95d9d7d5c
Jul 12 00:25:37.053 INFO running `"docker" "start" "-a" "fb9883ca207102b5ce757b8548243d9012bd4b2fb35606e44511e3b95d9d7d5c"`
Jul 12 00:25:38.320 INFO kablam!     Checking assert_approx_eq v1.0.0
Jul 12 00:25:38.777 INFO kablam!     Checking rfcalcs v0.1.1 (file:///source)
Jul 12 00:25:38.864 INFO kablam! error[E0658]: attributes on expressions are experimental. (see issue #15701)
Jul 12 00:25:38.864 INFO kablam!   --> src/lib.rs:33:9
Jul 12 00:25:38.864 INFO kablam!    |
Jul 12 00:25:38.864 INFO kablam! 33 |         /// Test against precalculated results
Jul 12 00:25:38.864 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Jul 12 00:25:38.865 INFO kablam!    |
Jul 12 00:25:38.865 INFO kablam!    = help: add #![feature(stmt_expr_attributes)] to the crate attributes to enable
Jul 12 00:25:38.866 INFO kablam!    = help: `///` is for documentation comments. For a plain comment, use `//`.
Jul 12 00:25:38.866 INFO kablam! 
Jul 12 00:25:39.141 INFO kablam! error: aborting due to previous error
Jul 12 00:25:39.142 INFO kablam! 
Jul 12 00:25:39.143 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Jul 12 00:25:39.155 INFO kablam! error: Could not compile `rfcalcs`.
Jul 12 00:25:39.156 INFO kablam! warning: build failed, waiting for other jobs to finish...
Jul 12 00:25:39.562 INFO kablam! error: build failed
Jul 12 00:25:39.564 INFO kablam! su: No module specific data is present
Jul 12 00:25:40.330 INFO running `"docker" "rm" "-f" "fb9883ca207102b5ce757b8548243d9012bd4b2fb35606e44511e3b95d9d7d5c"`
Jul 12 00:25:40.515 INFO blam! fb9883ca207102b5ce757b8548243d9012bd4b2fb35606e44511e3b95d9d7d5c