Sep 01 05:28:20.448 INFO checking stm32f100xx-0.4.0 against try#aa245a5862056b681d2ccdb178f58891108cd3a6 for pr-53831
Sep 01 05:28:20.448 INFO running: cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets
Sep 01 05:28:20.448 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53831/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-3/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/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=500" "-e" "CMD=cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 05:28:20.679 INFO blam! 93efe9725ff8d2b8f95058a559e775647c1a7e007e38ce32f003bf5eace822e8
Sep 01 05:28:20.681 INFO running `"docker" "start" "-a" "93efe9725ff8d2b8f95058a559e775647c1a7e007e38ce32f003bf5eace822e8"`
Sep 01 05:28:21.352 INFO kablam!     Checking cortex-m v0.2.12
Sep 01 05:28:21.831 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Sep 01 05:28:21.831 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/cortex-m-0.2.12/src/lib.rs:16:12
Sep 01 05:28:21.831 INFO kablam!    |
Sep 01 05:28:21.831 INFO kablam! 16 | #![feature(const_unsafe_cell_new)]
Sep 01 05:28:21.831 INFO kablam!    |            ^^^^^^^^^^^^^^^^^^^^^
Sep 01 05:28:21.831 INFO kablam! 
Sep 01 05:28:21.846 INFO kablam! error: aborting due to previous error
Sep 01 05:28:21.846 INFO kablam! 
Sep 01 05:28:21.846 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 01 05:28:21.852 INFO kablam! error: Could not compile `cortex-m`.
Sep 01 05:28:21.852 INFO kablam! 
Sep 01 05:28:21.852 INFO kablam! To learn more, run the command again with --verbose.
Sep 01 05:28:21.853 INFO kablam! su: No module specific data is present
Sep 01 05:28:22.306 INFO running `"docker" "rm" "-f" "93efe9725ff8d2b8f95058a559e775647c1a7e007e38ce32f003bf5eace822e8"`
Sep 01 05:28:22.428 INFO blam! 93efe9725ff8d2b8f95058a559e775647c1a7e007e38ce32f003bf5eace822e8