Aug 02 01:05:20.692 INFO checking regex_macros-0.2.0 against 1.27.2 for lazy_static-1
Aug 02 01:05:20.692 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 01:05:20.693 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 01:05:20.693 INFO running `"docker" "create" "-v" "/tmp/crater.klERddTlEju9:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-3/1.27.2:/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 01:05:21.092 INFO blam! 39ab9dc1d91706ac57a5ba08582e3a6fd31168a5d9f3f0dca0d8379ed481471c
Aug 02 01:05:21.093 INFO running `"docker" "start" "-a" "39ab9dc1d91706ac57a5ba08582e3a6fd31168a5d9f3f0dca0d8379ed481471c"`
Aug 02 01:05:22.543 INFO kablam!     Checking regex-syntax v0.4.2
Aug 02 01:05:22.543 INFO kablam!     Checking memchr v2.0.1
Aug 02 01:05:22.544 INFO kablam!    Compiling regex v0.2.11
Aug 02 01:05:23.163 INFO kablam!     Checking aho-corasick v0.6.6
Aug 02 01:05:23.299 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 01:05:23.299 INFO kablam!    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-0.2.11/src/lib.rs:522:34
Aug 02 01:05:23.299 INFO kablam!     |
Aug 02 01:05:23.299 INFO kablam! 522 | #![cfg_attr(feature = "pattern", feature(pattern))]
Aug 02 01:05:23.299 INFO kablam!     |                                  ^^^^^^^^^^^^^^^^^
Aug 02 01:05:23.299 INFO kablam! 
Aug 02 01:05:23.342 INFO kablam! error: aborting due to previous error
Aug 02 01:05:23.342 INFO kablam! 
Aug 02 01:05:23.342 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 01:05:23.351 INFO kablam! error: Could not compile `regex`.
Aug 02 01:05:23.351 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 01:05:26.542 INFO kablam! error: build failed
Aug 02 01:05:26.544 INFO kablam! su: No module specific data is present
Aug 02 01:05:27.162 INFO running `"docker" "rm" "-f" "39ab9dc1d91706ac57a5ba08582e3a6fd31168a5d9f3f0dca0d8379ed481471c"`
Aug 02 01:05:27.337 INFO blam! 39ab9dc1d91706ac57a5ba08582e3a6fd31168a5d9f3f0dca0d8379ed481471c