Aug 02 12:22:14.348 INFO checking cortex-m-semihosting-0.1.3 against 1.27.2 for lazy_static-1
Aug 02 12:22:14.348 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 12:22:14.348 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 12:22:14.348 INFO running `"docker" "create" "-v" "/tmp/crater.wG1e0feqSRpm:/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 02 12:22:14.597 INFO blam! de7fc92984e71f97405dc93778057e5ce0038432d6423654ffe4bb2a3042fdcf
Aug 02 12:22:14.597 INFO running `"docker" "start" "-a" "de7fc92984e71f97405dc93778057e5ce0038432d6423654ffe4bb2a3042fdcf"`
Aug 02 12:22:15.603 INFO kablam!     Checking cortex-m-semihosting v0.1.3 (file:///source)
Aug 02 12:22:15.901 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 12:22:15.901 INFO kablam!    --> src/lib.rs:105:1
Aug 02 12:22:15.901 INFO kablam!     |
Aug 02 12:22:15.901 INFO kablam! 105 | #![feature(asm)]
Aug 02 12:22:15.901 INFO kablam!     | ^^^^^^^^^^^^^^^^
Aug 02 12:22:15.901 INFO kablam! 
Aug 02 12:22:15.902 INFO kablam! error: aborting due to previous error
Aug 02 12:22:15.902 INFO kablam! 
Aug 02 12:22:15.902 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 12:22:15.907 INFO kablam! error: Could not compile `cortex-m-semihosting`.
Aug 02 12:22:15.908 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 12:22:16.263 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 12:22:16.263 INFO kablam!    --> src/lib.rs:105:1
Aug 02 12:22:16.263 INFO kablam!     |
Aug 02 12:22:16.263 INFO kablam! 105 | #![feature(asm)]
Aug 02 12:22:16.263 INFO kablam!     | ^^^^^^^^^^^^^^^^
Aug 02 12:22:16.263 INFO kablam! 
Aug 02 12:22:16.264 INFO kablam! error: aborting due to previous error
Aug 02 12:22:16.265 INFO kablam! 
Aug 02 12:22:16.265 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 12:22:16.273 INFO kablam! error: Could not compile `cortex-m-semihosting`.
Aug 02 12:22:16.274 INFO kablam! 
Aug 02 12:22:16.274 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 12:22:16.275 INFO kablam! su: No module specific data is present
Aug 02 12:22:16.878 INFO running `"docker" "rm" "-f" "de7fc92984e71f97405dc93778057e5ce0038432d6423654ffe4bb2a3042fdcf"`
Aug 02 12:22:17.039 INFO blam! de7fc92984e71f97405dc93778057e5ce0038432d6423654ffe4bb2a3042fdcf