Sep 14 08:26:14.198 INFO checking stm32f0xx-0.3.0 against try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0 for pr-53578-1
Sep 14 08:26:14.198 INFO running: cargo +87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0-alt check --frozen --all --all-targets
Sep 14 08:26:14.198 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-53578-1/try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578-1/worker-5/try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0:/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 +87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 14 08:26:14.645 INFO blam! 0c67782177d36b19713321856771e406e24c5cd9580771869ace119aba06b5ed
Sep 14 08:26:14.647 INFO running `"docker" "start" "-a" "0c67782177d36b19713321856771e406e24c5cd9580771869ace119aba06b5ed"`
Sep 14 08:26:15.431 INFO kablam! usermod: no changes
Sep 14 08:26:15.469 INFO kablam!    Compiling cortex-m v0.2.12
Sep 14 08:26:15.469 INFO kablam!     Checking cortex-m-semihosting v0.1.3
Sep 14 08:26:16.282 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Sep 14 08:26:16.283 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/cortex-m-0.2.12/src/lib.rs:16:12
Sep 14 08:26:16.283 INFO kablam!    |
Sep 14 08:26:16.283 INFO kablam! 16 | #![feature(const_unsafe_cell_new)]
Sep 14 08:26:16.283 INFO kablam!    |            ^^^^^^^^^^^^^^^^^^^^^
Sep 14 08:26:16.283 INFO kablam! 
Sep 14 08:26:16.297 INFO kablam! error: aborting due to previous error
Sep 14 08:26:16.297 INFO kablam! 
Sep 14 08:26:16.297 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 14 08:26:16.300 INFO kablam! error: Could not compile `cortex-m`.
Sep 14 08:26:16.300 INFO kablam! 
Sep 14 08:26:16.300 INFO kablam! To learn more, run the command again with --verbose.
Sep 14 08:26:16.300 INFO kablam! su: No module specific data is present
Sep 14 08:26:16.812 INFO running `"docker" "rm" "-f" "0c67782177d36b19713321856771e406e24c5cd9580771869ace119aba06b5ed"`
Sep 14 08:26:16.870 INFO blam! 0c67782177d36b19713321856771e406e24c5cd9580771869ace119aba06b5ed