Sep 21 02:27:45.995 INFO checking stm32f100xx-0.4.0 against try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6 for pr-54394
Sep 21 02:27:45.995 INFO running: cargo +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets
Sep 21 02:27:45.995 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-54394/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-5/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/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 +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 21 02:27:46.200 INFO blam! 7c9fcca788afc2c78229a2ca4f9e9803c58404c7a2e676bb669e8700edb0675a
Sep 21 02:27:46.202 INFO running `"docker" "start" "-a" "7c9fcca788afc2c78229a2ca4f9e9803c58404c7a2e676bb669e8700edb0675a"`
Sep 21 02:27:47.936 INFO kablam! usermod: no changes
Sep 21 02:27:48.042 INFO kablam!    Compiling cortex-m v0.2.12
Sep 21 02:27:48.042 INFO kablam!     Checking cortex-m-semihosting v0.1.3
Sep 21 02:27:49.378 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Sep 21 02:27:49.379 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/cortex-m-0.2.12/src/lib.rs:16:12
Sep 21 02:27:49.379 INFO kablam!    |
Sep 21 02:27:49.379 INFO kablam! 16 | #![feature(const_unsafe_cell_new)]
Sep 21 02:27:49.380 INFO kablam!    |            ^^^^^^^^^^^^^^^^^^^^^
Sep 21 02:27:49.380 INFO kablam! 
Sep 21 02:27:49.387 INFO kablam! error: aborting due to previous error
Sep 21 02:27:49.388 INFO kablam! 
Sep 21 02:27:49.388 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 21 02:27:49.394 INFO kablam! error: Could not compile `cortex-m`.
Sep 21 02:27:49.395 INFO kablam! 
Sep 21 02:27:49.395 INFO kablam! To learn more, run the command again with --verbose.
Sep 21 02:27:49.396 INFO kablam! su: No module specific data is present
Sep 21 02:27:50.976 INFO running `"docker" "rm" "-f" "7c9fcca788afc2c78229a2ca4f9e9803c58404c7a2e676bb669e8700edb0675a"`
Sep 21 02:27:51.083 INFO blam! 7c9fcca788afc2c78229a2ca4f9e9803c58404c7a2e676bb669e8700edb0675a