Aug 01 21:16:34.942 INFO checking stm32l0x1-hal-0.5.3 against 1.27.2 for lazy_static-1
Aug 01 21:16:34.942 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 21:16:34.942 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 21:16:34.942 INFO running `"docker" "create" "-v" "/tmp/crater.O7RAbipKWUn7:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-2/1.27.2:/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 21:16:35.277 INFO blam! 72e93f4f44cd6c5013867f774b6c67effa71d439232525e1c8cd69777453398e
Aug 01 21:16:35.279 INFO running `"docker" "start" "-a" "72e93f4f44cd6c5013867f774b6c67effa71d439232525e1c8cd69777453398e"`
Aug 01 21:16:36.686 INFO kablam!    Compiling cc v1.0.18
Aug 01 21:16:36.688 INFO kablam!     Checking vcell v0.1.0
Aug 01 21:16:36.688 INFO kablam!     Checking aligned v0.2.0
Aug 01 21:16:36.688 INFO kablam!    Compiling stm32l0x1 v0.13.1
Aug 01 21:16:36.688 INFO kablam!     Checking r0 v0.2.2
Aug 01 21:16:36.698 INFO kablam!     Checking bare-metal v0.2.0
Aug 01 21:16:36.701 INFO kablam!     Checking nb v0.1.1
Aug 01 21:16:36.703 INFO kablam!     Checking void v1.0.2
Aug 01 21:16:38.066 INFO kablam!     Checking cast v0.2.2
Aug 01 21:16:38.102 INFO kablam!     Checking volatile-register v0.2.0
Aug 01 21:16:38.565 INFO kablam!     Checking embedded-hal v0.2.1
Aug 01 21:16:48.543 INFO kablam!    Compiling cortex-m v0.5.2
Aug 01 21:16:48.544 INFO kablam!    Compiling cortex-m-rt v0.5.1
Aug 01 21:17:21.592 INFO kablam!     Checking stm32l0x1-hal v0.5.3 (file:///source)
Aug 01 21:17:22.604 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 21:17:22.604 INFO kablam!  --> src/lib.rs:3:1
Aug 01 21:17:22.604 INFO kablam!   |
Aug 01 21:17:22.604 INFO kablam! 3 | #![feature(never_type)]
Aug 01 21:17:22.604 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 21:17:22.604 INFO kablam! 
Aug 01 21:17:22.605 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 21:17:22.605 INFO kablam!  --> src/lib.rs:4:1
Aug 01 21:17:22.605 INFO kablam!   |
Aug 01 21:17:22.605 INFO kablam! 4 | #![feature(unsize)]
Aug 01 21:17:22.605 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^
Aug 01 21:17:22.605 INFO kablam! 
Aug 01 21:17:22.631 INFO kablam! error: aborting due to 2 previous errors
Aug 01 21:17:22.632 INFO kablam! 
Aug 01 21:17:22.632 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 21:17:22.635 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 21:17:22.635 INFO kablam!  --> src/lib.rs:3:1
Aug 01 21:17:22.635 INFO kablam!   |
Aug 01 21:17:22.635 INFO kablam! 3 | #![feature(never_type)]
Aug 01 21:17:22.635 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 21:17:22.635 INFO kablam! 
Aug 01 21:17:22.635 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 21:17:22.635 INFO kablam!  --> src/lib.rs:4:1
Aug 01 21:17:22.635 INFO kablam!   |
Aug 01 21:17:22.635 INFO kablam! 4 | #![feature(unsize)]
Aug 01 21:17:22.635 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^
Aug 01 21:17:22.636 INFO kablam! 
Aug 01 21:17:22.641 INFO kablam! error: Could not compile `stm32l0x1-hal`.
Aug 01 21:17:22.641 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 21:17:22.670 INFO kablam! error: aborting due to 2 previous errors
Aug 01 21:17:22.670 INFO kablam! 
Aug 01 21:17:22.671 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 21:17:22.698 INFO kablam! error: Could not compile `stm32l0x1-hal`.
Aug 01 21:17:22.698 INFO kablam! 
Aug 01 21:17:22.698 INFO kablam! To learn more, run the command again with --verbose.
Aug 01 21:17:22.700 INFO kablam! su: No module specific data is present
Aug 01 21:17:23.206 INFO running `"docker" "rm" "-f" "72e93f4f44cd6c5013867f774b6c67effa71d439232525e1c8cd69777453398e"`
Aug 01 21:17:23.361 INFO blam! 72e93f4f44cd6c5013867f774b6c67effa71d439232525e1c8cd69777453398e