Aug 02 09:32:15.994 INFO checking fxhash-0.2.1 against 1.27.2 for lazy_static-1
Aug 02 09:32:15.994 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 09:32:15.994 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 09:32:15.994 INFO running `"docker" "create" "-v" "/tmp/crater.HsELbcj77ynH:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-7/1.27.2:/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 09:32:16.283 INFO blam! ac8c731abe3982ea65717baef15fb4f823f41be6dd7e333fce7d009ebdfb9297
Aug 02 09:32:16.286 INFO running `"docker" "start" "-a" "ac8c731abe3982ea65717baef15fb4f823f41be6dd7e333fce7d009ebdfb9297"`
Aug 02 09:32:17.355 INFO kablam!     Checking fxhash v0.2.1 (file:///source)
Aug 02 09:32:18.989 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 09:32:18.989 INFO kablam!  --> bench.rs:1:1
Aug 02 09:32:18.989 INFO kablam!   |
Aug 02 09:32:18.989 INFO kablam! 1 | #![feature(test)]
Aug 02 09:32:18.989 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 09:32:18.989 INFO kablam! 
Aug 02 09:32:18.989 INFO kablam! error: aborting due to previous error
Aug 02 09:32:18.989 INFO kablam! 
Aug 02 09:32:18.989 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 09:32:18.995 INFO kablam! error: Could not compile `fxhash`.
Aug 02 09:32:18.995 INFO kablam! 
Aug 02 09:32:18.995 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 09:32:18.997 INFO kablam! su: No module specific data is present
Aug 02 09:32:20.026 INFO running `"docker" "rm" "-f" "ac8c731abe3982ea65717baef15fb4f823f41be6dd7e333fce7d009ebdfb9297"`
Aug 02 09:32:20.225 INFO blam! ac8c731abe3982ea65717baef15fb4f823f41be6dd7e333fce7d009ebdfb9297