Aug 01 22:59:48.362 INFO checking sbrsk-0.1.0 against 1.27.2 for lazy_static-1
Aug 01 22:59:48.362 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 22:59:48.362 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 22:59:48.363 INFO running `"docker" "create" "-v" "/tmp/crater.k9P7DY26LdFd:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-2/1.27.2:/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 01 22:59:48.594 INFO blam! e9a88e15b33cf32703905c67f0e6e398507ba22882c2fa7519c4759df8ee422b
Aug 01 22:59:48.597 INFO running `"docker" "start" "-a" "e9a88e15b33cf32703905c67f0e6e398507ba22882c2fa7519c4759df8ee422b"`
Aug 01 22:59:49.488 INFO kablam!     Checking syscall v0.2.1
Aug 01 22:59:49.792 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 22:59:49.792 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/syscall-0.2.1/src/lib.rs:15:1
Aug 01 22:59:49.792 INFO kablam!    |
Aug 01 22:59:49.792 INFO kablam! 15 | #![feature(asm)]
Aug 01 22:59:49.792 INFO kablam!    | ^^^^^^^^^^^^^^^^
Aug 01 22:59:49.793 INFO kablam! 
Aug 01 22:59:49.794 INFO kablam! error: aborting due to previous error
Aug 01 22:59:49.794 INFO kablam! 
Aug 01 22:59:49.794 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 22:59:49.799 INFO kablam! error: Could not compile `syscall`.
Aug 01 22:59:49.800 INFO kablam! 
Aug 01 22:59:49.800 INFO kablam! To learn more, run the command again with --verbose.
Aug 01 22:59:49.809 INFO kablam! su: No module specific data is present
Aug 01 22:59:50.374 INFO running `"docker" "rm" "-f" "e9a88e15b33cf32703905c67f0e6e398507ba22882c2fa7519c4759df8ee422b"`
Aug 01 22:59:50.518 INFO blam! e9a88e15b33cf32703905c67f0e6e398507ba22882c2fa7519c4759df8ee422b