Aug 02 02:26:57.747 INFO checking phloem-0.3.1 against 1.27.2 for lazy_static-1 Aug 02 02:26:57.747 INFO running: cargo +1.27.2 check --frozen --all --all-targets Aug 02 02:26:57.747 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets Aug 02 02:26:57.747 INFO running `"docker" "create" "-v" "/tmp/crater.n2wxp6VYVsNA:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-6/1.27.2:/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" "-v" "/home/ec2-user/crater/./work/local/cargo-home/git:/cargo-home/git:rw,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +1.27.2 check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"` Aug 02 02:26:58.039 INFO blam! 8a9aedba913d4bc18424af264d0795a0ee26f0052d69b5dcbb6c08cf07a1de02 Aug 02 02:26:58.045 INFO running `"docker" "start" "-a" "8a9aedba913d4bc18424af264d0795a0ee26f0052d69b5dcbb6c08cf07a1de02"` Aug 02 02:26:59.181 INFO kablam! Compiling rblas v0.0.10 Aug 02 02:27:01.249 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel Aug 02 02:27:01.249 INFO kablam! --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/rblas-0.0.10/src/lib.rs:4:1 Aug 02 02:27:01.249 INFO kablam! | Aug 02 02:27:01.249 INFO kablam! 4 | #![feature(concat_idents)] Aug 02 02:27:01.249 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^ Aug 02 02:27:01.276 INFO kablam! Aug 02 02:27:01.276 INFO kablam! error: aborting due to previous error Aug 02 02:27:01.276 INFO kablam! Aug 02 02:27:01.276 INFO kablam! For more information about this error, try `rustc --explain E0554`. Aug 02 02:27:01.276 INFO kablam! error: Could not compile `rblas`. Aug 02 02:27:01.276 INFO kablam! Aug 02 02:27:01.276 INFO kablam! To learn more, run the command again with --verbose. Aug 02 02:27:01.276 INFO kablam! su: No module specific data is present Aug 02 02:27:01.890 INFO running `"docker" "rm" "-f" "8a9aedba913d4bc18424af264d0795a0ee26f0052d69b5dcbb6c08cf07a1de02"` Aug 02 02:27:02.052 INFO blam! 8a9aedba913d4bc18424af264d0795a0ee26f0052d69b5dcbb6c08cf07a1de02