Sep 05 23:27:38.290 INFO checking stm32f0xx-0.3.0 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 05 23:27:38.290 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 05 23:27:38.290 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-7/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-7/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/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 +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 05 23:27:38.508 INFO blam! 4600aca41b5da00de823423019188391d314dad1b970cdcb9fef7372b2980c8f
Sep 05 23:27:38.510 INFO running `"docker" "start" "-a" "4600aca41b5da00de823423019188391d314dad1b970cdcb9fef7372b2980c8f"`
Sep 05 23:27:39.696 INFO kablam! usermod: no changes
Sep 05 23:27:39.778 INFO kablam!     Checking cortex-m v0.2.12
Sep 05 23:27:40.294 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Sep 05 23:27:40.294 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/cortex-m-0.2.12/src/lib.rs:16:12
Sep 05 23:27:40.294 INFO kablam!    |
Sep 05 23:27:40.294 INFO kablam! 16 | #![feature(const_unsafe_cell_new)]
Sep 05 23:27:40.294 INFO kablam!    |            ^^^^^^^^^^^^^^^^^^^^^
Sep 05 23:27:40.294 INFO kablam! 
Sep 05 23:27:40.306 INFO kablam! error: aborting due to previous error
Sep 05 23:27:40.306 INFO kablam! 
Sep 05 23:27:40.306 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 05 23:27:40.312 INFO kablam! error: Could not compile `cortex-m`.
Sep 05 23:27:40.312 INFO kablam! 
Sep 05 23:27:40.312 INFO kablam! To learn more, run the command again with --verbose.
Sep 05 23:27:40.313 INFO kablam! su: No module specific data is present
Sep 05 23:27:41.924 INFO running `"docker" "rm" "-f" "4600aca41b5da00de823423019188391d314dad1b970cdcb9fef7372b2980c8f"`
Sep 05 23:27:42.054 INFO blam! 4600aca41b5da00de823423019188391d314dad1b970cdcb9fef7372b2980c8f