Jul 12 09:15:10.779 INFO checking futures-black-hole-0.2.2 against master#ae5b629efd79de78e6ba7ef493c32857bd7f9cf9 for pr-52234
Jul 12 09:15:10.779 INFO running: cargo +ae5b629efd79de78e6ba7ef493c32857bd7f9cf9-alt check --frozen --all --all-targets
Jul 12 09:15:10.779 INFO creating container for: cargo +ae5b629efd79de78e6ba7ef493c32857bd7f9cf9-alt check --frozen --all --all-targets
Jul 12 09:15:10.779 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-52234/master#ae5b629efd79de78e6ba7ef493c32857bd7f9cf9:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-52234/worker-4/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 09:15:11.040 INFO blam! 290804d5a9bd0155ad6c229d25564f040f5945338a76af6ac3983619dc3dbb0f
Jul 12 09:15:11.044 INFO running `"docker" "start" "-a" "290804d5a9bd0155ad6c229d25564f040f5945338a76af6ac3983619dc3dbb0f"`
Jul 12 09:15:12.229 INFO kablam!     Checking futures-black-hole v0.2.2 (file:///source)
Jul 12 09:15:13.373 INFO kablam! warning: this feature has been stable since 1.26.0. Attribute no longer needed
Jul 12 09:15:13.373 INFO kablam!  --> src/lib.rs:1:24
Jul 12 09:15:13.373 INFO kablam!   |
Jul 12 09:15:13.373 INFO kablam! 1 | #![feature(proc_macro, conservative_impl_trait, generators)]
Jul 12 09:15:13.374 INFO kablam!   |                        ^^^^^^^^^^^^^^^^^^^^^^^
Jul 12 09:15:13.374 INFO kablam!   |
Jul 12 09:15:13.374 INFO kablam!   = note: #[warn(stable_features)] on by default
Jul 12 09:15:13.374 INFO kablam! 
Jul 12 09:15:13.701 INFO kablam! error[E0659]: `await` is ambiguous
Jul 12 09:15:13.701 INFO kablam!    --> src/black_hole.rs:140:9
Jul 12 09:15:13.701 INFO kablam!     |
Jul 12 09:15:13.701 INFO kablam! 140 |         await!(b)?;
Jul 12 09:15:13.701 INFO kablam!     |         ^^^^^
Jul 12 09:15:13.710 INFO kablam!     |
Jul 12 09:15:13.711 INFO kablam! note: `await` could refer to the name imported here
Jul 12 09:15:13.711 INFO kablam!    --> src/black_hole.rs:100:9
Jul 12 09:15:13.711 INFO kablam!     |
Jul 12 09:15:13.711 INFO kablam! 100 |     use futures::prelude::*;
Jul 12 09:15:13.711 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^
Jul 12 09:15:13.711 INFO kablam!     = note: `await` is also a builtin macro
Jul 12 09:15:13.711 INFO kablam!     = note: consider adding an explicit import of `await` to disambiguate
Jul 12 09:15:13.711 INFO kablam! 
Jul 12 09:15:13.922 INFO kablam! error: aborting due to previous error
Jul 12 09:15:13.922 INFO kablam! 
Jul 12 09:15:13.922 INFO kablam! For more information about this error, try `rustc --explain E0659`.
Jul 12 09:15:13.934 INFO kablam! error: Could not compile `futures-black-hole`.
Jul 12 09:15:13.934 INFO kablam! 
Jul 12 09:15:13.934 INFO kablam! To learn more, run the command again with --verbose.
Jul 12 09:15:13.935 INFO kablam! su: No module specific data is present
Jul 12 09:15:14.492 INFO running `"docker" "rm" "-f" "290804d5a9bd0155ad6c229d25564f040f5945338a76af6ac3983619dc3dbb0f"`
Jul 12 09:15:14.661 INFO blam! 290804d5a9bd0155ad6c229d25564f040f5945338a76af6ac3983619dc3dbb0f