Sep 14 08:25:55.615 INFO checking stm32f100xx-0.4.0 against master#90d36fb5905bbe5004f5b465ea14b53d10dae260 for pr-53578-1
Sep 14 08:25:55.615 INFO running: cargo +90d36fb5905bbe5004f5b465ea14b53d10dae260-alt check --frozen --all --all-targets
Sep 14 08:25:55.615 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-7/pr-53578-1/master#90d36fb5905bbe5004f5b465ea14b53d10dae260:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578-1/worker-7/master#90d36fb5905bbe5004f5b465ea14b53d10dae260:/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 +90d36fb5905bbe5004f5b465ea14b53d10dae260-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 14 08:25:56.091 INFO blam! 305b824fb4f2709895e43bd2f01bdb339300cd6b56567bb5999c8b45829ebec0
Sep 14 08:25:56.093 INFO running `"docker" "start" "-a" "305b824fb4f2709895e43bd2f01bdb339300cd6b56567bb5999c8b45829ebec0"`
Sep 14 08:25:58.631 INFO kablam! usermod: no changes
Sep 14 08:25:58.738 INFO kablam!     Checking cortex-m v0.2.12
Sep 14 08:25:59.223 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Sep 14 08:25:59.223 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/cortex-m-0.2.12/src/lib.rs:16:12
Sep 14 08:25:59.223 INFO kablam!    |
Sep 14 08:25:59.223 INFO kablam! 16 | #![feature(const_unsafe_cell_new)]
Sep 14 08:25:59.223 INFO kablam!    |            ^^^^^^^^^^^^^^^^^^^^^
Sep 14 08:25:59.223 INFO kablam! 
Sep 14 08:25:59.237 INFO kablam! error: aborting due to previous error
Sep 14 08:25:59.237 INFO kablam! 
Sep 14 08:25:59.237 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 14 08:25:59.244 INFO kablam! error: Could not compile `cortex-m`.
Sep 14 08:25:59.244 INFO kablam! 
Sep 14 08:25:59.244 INFO kablam! To learn more, run the command again with --verbose.
Sep 14 08:25:59.246 INFO kablam! su: No module specific data is present
Sep 14 08:26:01.382 INFO running `"docker" "rm" "-f" "305b824fb4f2709895e43bd2f01bdb339300cd6b56567bb5999c8b45829ebec0"`
Sep 14 08:26:01.795 INFO blam! 305b824fb4f2709895e43bd2f01bdb339300cd6b56567bb5999c8b45829ebec0