Aug 11 00:51:41.232 INFO checking stm32l4x6-memory-map-0.2.0 against master#f6d43ed84207c7e58f363f46e5a438ff40f2b311 for libc-1
Aug 11 00:51:41.232 INFO running: cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets
Aug 11 00:51:41.232 INFO creating container for: cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets
Aug 11 00:51:41.232 INFO running `"docker" "create" "-v" "/tmp/crater.kRG3MlTQZdLI:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/libc-1/worker-6/master#f6d43ed84207c7e58f363f46e5a438ff40f2b311:/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 +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "crater"`
Aug 11 00:51:41.413 INFO blam! 59b9e21615e8004bd740d7088c66460511dcef912b840fa2ed524ea971fd93b1
Aug 11 00:51:41.415 INFO running `"docker" "start" "-a" "59b9e21615e8004bd740d7088c66460511dcef912b840fa2ed524ea971fd93b1"`
Aug 11 00:51:42.647 INFO kablam!     Checking cortex-m v0.2.12
Aug 11 00:51:43.587 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 11 00:51:43.587 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/cortex-m-0.2.12/src/lib.rs:16:12
Aug 11 00:51:43.587 INFO kablam!    |
Aug 11 00:51:43.587 INFO kablam! 16 | #![feature(const_unsafe_cell_new)]
Aug 11 00:51:43.587 INFO kablam!    |            ^^^^^^^^^^^^^^^^^^^^^
Aug 11 00:51:43.588 INFO kablam! 
Aug 11 00:51:43.624 INFO kablam! error: aborting due to previous error
Aug 11 00:51:43.624 INFO kablam! 
Aug 11 00:51:43.624 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 11 00:51:43.632 INFO kablam! error: Could not compile `cortex-m`.
Aug 11 00:51:43.632 INFO kablam! 
Aug 11 00:51:43.632 INFO kablam! To learn more, run the command again with --verbose.
Aug 11 00:51:43.633 INFO kablam! su: No module specific data is present
Aug 11 00:51:44.226 INFO running `"docker" "rm" "-f" "59b9e21615e8004bd740d7088c66460511dcef912b840fa2ed524ea971fd93b1"`
Aug 11 00:51:44.411 INFO blam! 59b9e21615e8004bd740d7088c66460511dcef912b840fa2ed524ea971fd93b1