Aug 01 20:20:03.331 INFO checking tm4c123x-0.4.0 against 1.27.2 for lazy_static-1
Aug 01 20:20:03.332 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:20:03.332 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:20:03.332 INFO running `"docker" "create" "-v" "/tmp/crater.aHvGkBn3I3Cm:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-1/1.27.2:/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 20:20:03.598 INFO blam! dc694fa6977c8c32c14e44e6af53e842f74ba6e350d6ddf6caff773a19fe77d3
Aug 01 20:20:03.601 INFO running `"docker" "start" "-a" "dc694fa6977c8c32c14e44e6af53e842f74ba6e350d6ddf6caff773a19fe77d3"`
Aug 01 20:20:04.580 INFO kablam!     Checking vcell v0.1.0
Aug 01 20:20:04.584 INFO kablam!    Compiling cortex-m v0.2.12
Aug 01 20:20:04.585 INFO kablam!     Checking cortex-m-semihosting v0.1.3
Aug 01 20:20:04.585 INFO kablam!     Checking aligned v0.1.2
Aug 01 20:20:05.287 INFO kablam!     Checking volatile-register v0.2.0
Aug 01 20:20:05.330 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:20:05.330 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/aligned-0.1.2/src/lib.rs:32:35
Aug 01 20:20:05.330 INFO kablam!    |
Aug 01 20:20:05.330 INFO kablam! 32 | #![cfg_attr(feature = "const-fn", feature(const_fn))]
Aug 01 20:20:05.330 INFO kablam!    |                                   ^^^^^^^^^^^^^^^^^^
Aug 01 20:20:05.330 INFO kablam! 
Aug 01 20:20:05.332 INFO kablam! error: aborting due to previous error
Aug 01 20:20:05.332 INFO kablam! 
Aug 01 20:20:05.332 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 20:20:05.360 INFO kablam! error: Could not compile `aligned`.
Aug 01 20:20:05.360 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 20:20:05.407 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:20:05.407 INFO kablam!    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/cortex-m-semihosting-0.1.3/src/lib.rs:105:1
Aug 01 20:20:05.407 INFO kablam!     |
Aug 01 20:20:05.407 INFO kablam! 105 | #![feature(asm)]
Aug 01 20:20:05.407 INFO kablam!     | ^^^^^^^^^^^^^^^^
Aug 01 20:20:05.407 INFO kablam! 
Aug 01 20:20:05.408 INFO kablam! error: aborting due to previous error
Aug 01 20:20:05.408 INFO kablam! 
Aug 01 20:20:05.408 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 20:20:05.457 INFO kablam! error: Could not compile `cortex-m-semihosting`.
Aug 01 20:20:05.458 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 20:20:06.454 INFO kablam! error: build failed
Aug 01 20:20:06.455 INFO kablam! su: No module specific data is present
Aug 01 20:20:07.082 INFO running `"docker" "rm" "-f" "dc694fa6977c8c32c14e44e6af53e842f74ba6e350d6ddf6caff773a19fe77d3"`
Aug 01 20:20:07.245 INFO blam! dc694fa6977c8c32c14e44e6af53e842f74ba6e350d6ddf6caff773a19fe77d3