Aug 02 02:43:52.569 INFO checking panic-semihosting-0.2.0 against 1.27.2 for lazy_static-1
Aug 02 02:43:52.569 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 02:43:52.569 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 02:43:52.569 INFO running `"docker" "create" "-v" "/tmp/crater.FijMmsIB7Jzd:/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 02:43:52.855 INFO blam! f831927bb1f82e88df67dc0a3bfcc12a5272a83115158d84dcb624f29585ce15
Aug 02 02:43:52.857 INFO running `"docker" "start" "-a" "f831927bb1f82e88df67dc0a3bfcc12a5272a83115158d84dcb624f29585ce15"`
Aug 02 02:43:54.542 INFO kablam!    Compiling cortex-m-semihosting v0.3.0
Aug 02 02:43:56.591 INFO kablam!     Checking panic-semihosting v0.2.0 (file:///source)
Aug 02 02:43:57.000 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 02:43:57.000 INFO kablam!   --> src/lib.rs:56:1
Aug 02 02:43:57.000 INFO kablam!    |
Aug 02 02:43:57.001 INFO kablam! 56 | #![feature(lang_items)]
Aug 02 02:43:57.001 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 02:43:57.001 INFO kablam! 
Aug 02 02:43:57.001 INFO kablam! error: aborting due to previous error
Aug 02 02:43:57.001 INFO kablam! 
Aug 02 02:43:57.001 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 02:43:57.004 INFO kablam! error: Could not compile `panic-semihosting`.
Aug 02 02:43:57.004 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 02:43:57.352 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 02:43:57.352 INFO kablam!   --> src/lib.rs:56:1
Aug 02 02:43:57.353 INFO kablam!    |
Aug 02 02:43:57.353 INFO kablam! 56 | #![feature(lang_items)]
Aug 02 02:43:57.353 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 02:43:57.353 INFO kablam! 
Aug 02 02:43:57.353 INFO kablam! error: aborting due to previous error
Aug 02 02:43:57.353 INFO kablam! 
Aug 02 02:43:57.353 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 02:43:57.361 INFO kablam! error: Could not compile `panic-semihosting`.
Aug 02 02:43:57.361 INFO kablam! 
Aug 02 02:43:57.361 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 02:43:57.363 INFO kablam! su: No module specific data is present
Aug 02 02:43:58.018 INFO running `"docker" "rm" "-f" "f831927bb1f82e88df67dc0a3bfcc12a5272a83115158d84dcb624f29585ce15"`
Aug 02 02:43:58.164 INFO blam! f831927bb1f82e88df67dc0a3bfcc12a5272a83115158d84dcb624f29585ce15