Aug 02 15:06:52.817 INFO checking alternate-future-0.1.4 against 1.27.2 for lazy_static-1
Aug 02 15:06:52.817 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 15:06:52.817 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 15:06:52.817 INFO running `"docker" "create" "-v" "/tmp/crater.OqcrH2wky1lP:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-4/1.27.2:/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 15:06:53.114 INFO blam! b23ad63781039bb8afbe10a0b024ea47ccc6707687130a6a57546179143b4e48
Aug 02 15:06:53.114 INFO running `"docker" "start" "-a" "b23ad63781039bb8afbe10a0b024ea47ccc6707687130a6a57546179143b4e48"`
Aug 02 15:06:54.544 INFO kablam!     Checking spin v0.3.5
Aug 02 15:06:54.910 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 15:06:54.910 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.3.5/src/lib.rs:6:1
Aug 02 15:06:54.910 INFO kablam!   |
Aug 02 15:06:54.910 INFO kablam! 6 | #![feature(const_fn, asm)]
Aug 02 15:06:54.910 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 15:06:54.910 INFO kablam! 
Aug 02 15:06:54.912 INFO kablam! error: aborting due to previous error
Aug 02 15:06:54.912 INFO kablam! 
Aug 02 15:06:54.912 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 15:06:54.926 INFO kablam! error: Could not compile `spin`.
Aug 02 15:06:54.926 INFO kablam! 
Aug 02 15:06:54.926 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 15:06:54.927 INFO kablam! su: No module specific data is present
Aug 02 15:06:55.860 INFO running `"docker" "rm" "-f" "b23ad63781039bb8afbe10a0b024ea47ccc6707687130a6a57546179143b4e48"`
Aug 02 15:06:56.026 INFO blam! b23ad63781039bb8afbe10a0b024ea47ccc6707687130a6a57546179143b4e48