Aug 01 21:21:19.265 INFO checking stm32f0xx-0.3.0 against 1.27.2 for lazy_static-1
Aug 01 21:21:19.265 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 21:21:19.265 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 21:21:19.265 INFO running `"docker" "create" "-v" "/tmp/crater.uYffV4IKDEJr:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-3/1.27.2:/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 21:21:19.518 INFO blam! cb6d6dfe2ffc8ad0e542b89f7374798500cab041dfc0264c21f1f25d2547eb07
Aug 01 21:21:19.521 INFO running `"docker" "start" "-a" "cb6d6dfe2ffc8ad0e542b89f7374798500cab041dfc0264c21f1f25d2547eb07"`
Aug 01 21:21:20.363 INFO kablam!     Checking aligned v0.1.2
Aug 01 21:21:20.364 INFO kablam!     Checking cortex-m-semihosting v0.1.3
Aug 01 21:21:20.365 INFO kablam!    Compiling cortex-m v0.2.12
Aug 01 21:21:20.805 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 21:21:20.805 INFO kablam!    --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/cortex-m-semihosting-0.1.3/src/lib.rs:105:1
Aug 01 21:21:20.805 INFO kablam!     |
Aug 01 21:21:20.805 INFO kablam! 105 | #![feature(asm)]
Aug 01 21:21:20.805 INFO kablam!     | ^^^^^^^^^^^^^^^^
Aug 01 21:21:20.805 INFO kablam! 
Aug 01 21:21:20.806 INFO kablam! error: aborting due to previous error
Aug 01 21:21:20.806 INFO kablam! 
Aug 01 21:21:20.806 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 21:21:20.816 INFO kablam! error: Could not compile `cortex-m-semihosting`.
Aug 01 21:21:20.816 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 21:21:20.845 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 21:21:20.845 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/aligned-0.1.2/src/lib.rs:32:35
Aug 01 21:21:20.845 INFO kablam!    |
Aug 01 21:21:20.846 INFO kablam! 32 | #![cfg_attr(feature = "const-fn", feature(const_fn))]
Aug 01 21:21:20.846 INFO kablam!    |                                   ^^^^^^^^^^^^^^^^^^
Aug 01 21:21:20.846 INFO kablam! 
Aug 01 21:21:20.847 INFO kablam! error: aborting due to previous error
Aug 01 21:21:20.847 INFO kablam! 
Aug 01 21:21:20.847 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 21:21:20.861 INFO kablam! error: Could not compile `aligned`.
Aug 01 21:21:20.861 INFO kablam! 
Aug 01 21:21:20.861 INFO kablam! To learn more, run the command again with --verbose.
Aug 01 21:21:20.862 INFO kablam! su: No module specific data is present
Aug 01 21:21:21.426 INFO running `"docker" "rm" "-f" "cb6d6dfe2ffc8ad0e542b89f7374798500cab041dfc0264c21f1f25d2547eb07"`
Aug 01 21:21:21.602 INFO blam! cb6d6dfe2ffc8ad0e542b89f7374798500cab041dfc0264c21f1f25d2547eb07