Sep 05 23:27:38.715 INFO checking stm32f0xx-0.3.0 against master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6 for pr-53854
Sep 05 23:27:38.715 INFO running: cargo +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets
Sep 05 23:27:38.715 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-53854/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-6/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/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" "-e" "USER_ID=1000" "-e" "CMD=cargo +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 05 23:27:38.975 INFO blam! 732fd8dc75b14a84cf59a473e36fafd93d41541e7559cd8c1b95395a4c4f9602
Sep 05 23:27:38.976 INFO running `"docker" "start" "-a" "732fd8dc75b14a84cf59a473e36fafd93d41541e7559cd8c1b95395a4c4f9602"`
Sep 05 23:27:40.566 INFO kablam! usermod: no changes
Sep 05 23:27:40.622 INFO kablam!     Checking cortex-m v0.2.12
Sep 05 23:27:41.054 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Sep 05 23:27:41.054 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/cortex-m-0.2.12/src/lib.rs:16:12
Sep 05 23:27:41.054 INFO kablam!    |
Sep 05 23:27:41.054 INFO kablam! 16 | #![feature(const_unsafe_cell_new)]
Sep 05 23:27:41.054 INFO kablam!    |            ^^^^^^^^^^^^^^^^^^^^^
Sep 05 23:27:41.054 INFO kablam! 
Sep 05 23:27:41.066 INFO kablam! error: aborting due to previous error
Sep 05 23:27:41.066 INFO kablam! 
Sep 05 23:27:41.066 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 05 23:27:41.071 INFO kablam! error: Could not compile `cortex-m`.
Sep 05 23:27:41.071 INFO kablam! 
Sep 05 23:27:41.071 INFO kablam! To learn more, run the command again with --verbose.
Sep 05 23:27:41.072 INFO kablam! su: No module specific data is present
Sep 05 23:27:42.293 INFO running `"docker" "rm" "-f" "732fd8dc75b14a84cf59a473e36fafd93d41541e7559cd8c1b95395a4c4f9602"`
Sep 05 23:27:42.402 INFO blam! 732fd8dc75b14a84cf59a473e36fafd93d41541e7559cd8c1b95395a4c4f9602