Aug 01 19:44:52.720 INFO checking uart_16550-0.1.0 against 1.27.2+tmplazy for lazy_static-1
Aug 01 19:44:52.720 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 19:44:52.720 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 19:44:52.720 INFO running `"docker" "create" "-v" "/tmp/crater.RJM2vSGchI1M:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-1/1.27.2+tmplazy:/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 19:44:52.968 INFO blam! 708c151beb53f61e35454ff386f9294c5e5f61791ff4f0cca3efc0802524fefb
Aug 01 19:44:52.971 INFO running `"docker" "start" "-a" "708c151beb53f61e35454ff386f9294c5e5f61791ff4f0cca3efc0802524fefb"`
Aug 01 19:44:53.888 INFO kablam!     Checking usize_conversions v0.2.0
Aug 01 19:44:54.089 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 19:44:54.089 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/usize_conversions-0.2.0/src/lib.rs:6:1
Aug 01 19:44:54.089 INFO kablam!   |
Aug 01 19:44:54.089 INFO kablam! 6 | #![feature(i128_type)]
Aug 01 19:44:54.089 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^
Aug 01 19:44:54.089 INFO kablam! 
Aug 01 19:44:54.090 INFO kablam! error: aborting due to previous error
Aug 01 19:44:54.090 INFO kablam! 
Aug 01 19:44:54.090 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 19:44:54.095 INFO kablam! error: Could not compile `usize_conversions`.
Aug 01 19:44:54.095 INFO kablam! 
Aug 01 19:44:54.095 INFO kablam! To learn more, run the command again with --verbose.
Aug 01 19:44:54.096 INFO kablam! su: No module specific data is present
Aug 01 19:44:54.950 INFO running `"docker" "rm" "-f" "708c151beb53f61e35454ff386f9294c5e5f61791ff4f0cca3efc0802524fefb"`
Aug 01 19:44:55.084 INFO blam! 708c151beb53f61e35454ff386f9294c5e5f61791ff4f0cca3efc0802524fefb