Sep 02 09:13:22.719 INFO checking lazy-pool-0.2.2 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53851 Sep 02 09:13:22.719 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets Sep 02 09:13:22.719 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53851/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-0/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/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 +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"` Sep 02 09:13:22.951 INFO blam! c4fa2837841baf7ac18f5014a7af171042d1f7ba5b393199956c59fbe24eccaa Sep 02 09:13:22.951 INFO running `"docker" "start" "-a" "c4fa2837841baf7ac18f5014a7af171042d1f7ba5b393199956c59fbe24eccaa"` Sep 02 09:13:23.831 INFO kablam! Checking lazy-pool v0.2.2 (file:///source) Sep 02 09:13:24.534 INFO kablam! warning: the feature `universal_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable Sep 02 09:13:24.534 INFO kablam! --> src/lib.rs:1:24 Sep 02 09:13:24.534 INFO kablam! | Sep 02 09:13:24.534 INFO kablam! 1 | #![feature(box_syntax, universal_impl_trait)] Sep 02 09:13:24.534 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^ Sep 02 09:13:24.534 INFO kablam! | Sep 02 09:13:24.534 INFO kablam! = note: #[warn(stable_features)] on by default Sep 02 09:13:24.534 INFO kablam! Sep 02 09:13:24.534 INFO kablam! warning: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable Sep 02 09:13:24.534 INFO kablam! --> src/lib.rs:2:12 Sep 02 09:13:24.534 INFO kablam! | Sep 02 09:13:24.534 INFO kablam! 2 | #![feature(proc_macro, conservative_impl_trait, generators)] Sep 02 09:13:24.534 INFO kablam! | ^^^^^^^^^^ Sep 02 09:13:24.534 INFO kablam! Sep 02 09:13:24.535 INFO kablam! warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable Sep 02 09:13:24.535 INFO kablam! --> src/lib.rs:2:24 Sep 02 09:13:24.535 INFO kablam! | Sep 02 09:13:24.535 INFO kablam! 2 | #![feature(proc_macro, conservative_impl_trait, generators)] Sep 02 09:13:24.535 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^ Sep 02 09:13:24.535 INFO kablam! Sep 02 09:13:24.836 INFO kablam! error[E0658]: procedural macros cannot be expanded to expressions (see issue #38356) Sep 02 09:13:24.836 INFO kablam! --> src/lib.rs:335:13 Sep 02 09:13:24.836 INFO kablam! | Sep 02 09:13:24.836 INFO kablam! 335 | / async_block!{ Sep 02 09:13:24.837 INFO kablam! 336 | | await!(holder.get_member_value()) Sep 02 09:13:24.837 INFO kablam! 337 | | }; Sep 02 09:13:24.837 INFO kablam! | |_____________^ Sep 02 09:13:24.837 INFO kablam! | Sep 02 09:13:24.837 INFO kablam! = help: add #![feature(proc_macro_non_items)] to the crate attributes to enable Sep 02 09:13:24.837 INFO kablam! Sep 02 09:13:24.839 INFO kablam! error: aborting due to previous error Sep 02 09:13:24.839 INFO kablam! Sep 02 09:13:24.839 INFO kablam! For more information about this error, try `rustc --explain E0658`. Sep 02 09:13:24.849 INFO kablam! error: Could not compile `lazy-pool`. Sep 02 09:13:24.849 INFO kablam! Sep 02 09:13:24.849 INFO kablam! To learn more, run the command again with --verbose. Sep 02 09:13:24.851 INFO kablam! su: No module specific data is present Sep 02 09:13:25.249 INFO running `"docker" "rm" "-f" "c4fa2837841baf7ac18f5014a7af171042d1f7ba5b393199956c59fbe24eccaa"` Sep 02 09:13:25.382 INFO blam! c4fa2837841baf7ac18f5014a7af171042d1f7ba5b393199956c59fbe24eccaa