Aug 30 02:22:16.928 INFO checking stm32f0xx-0.3.0 against try#2d477f9981361618ac78253c28051a66b6cea125 for pr-53707
Aug 30 02:22:16.928 INFO running: cargo +2d477f9981361618ac78253c28051a66b6cea125-alt check --frozen --all --all-targets
Aug 30 02:22:16.928 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53707/try#2d477f9981361618ac78253c28051a66b6cea125:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53707/worker-3/try#2d477f9981361618ac78253c28051a66b6cea125:/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 +2d477f9981361618ac78253c28051a66b6cea125-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 30 02:22:17.091 INFO blam! 6629ab83f880c9c2069a539ecc18dde4a48c12bd1ae6b314b818d3071aaca8d9
Aug 30 02:22:17.092 INFO running `"docker" "start" "-a" "6629ab83f880c9c2069a539ecc18dde4a48c12bd1ae6b314b818d3071aaca8d9"`
Aug 30 02:22:17.690 INFO kablam!    Compiling cortex-m v0.2.12
Aug 30 02:22:17.690 INFO kablam!     Checking cortex-m-semihosting v0.1.3
Aug 30 02:22:19.004 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 30 02:22:19.004 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/cortex-m-0.2.12/src/lib.rs:16:12
Aug 30 02:22:19.004 INFO kablam!    |
Aug 30 02:22:19.004 INFO kablam! 16 | #![feature(const_unsafe_cell_new)]
Aug 30 02:22:19.004 INFO kablam!    |            ^^^^^^^^^^^^^^^^^^^^^
Aug 30 02:22:19.004 INFO kablam! 
Aug 30 02:22:19.029 INFO kablam! error: aborting due to previous error
Aug 30 02:22:19.029 INFO kablam! 
Aug 30 02:22:19.029 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 30 02:22:19.036 INFO kablam! error: Could not compile `cortex-m`.
Aug 30 02:22:19.036 INFO kablam! 
Aug 30 02:22:19.037 INFO kablam! To learn more, run the command again with --verbose.
Aug 30 02:22:19.038 INFO kablam! su: No module specific data is present
Aug 30 02:22:19.510 INFO running `"docker" "rm" "-f" "6629ab83f880c9c2069a539ecc18dde4a48c12bd1ae6b314b818d3071aaca8d9"`
Aug 30 02:22:19.640 INFO blam! 6629ab83f880c9c2069a539ecc18dde4a48c12bd1ae6b314b818d3071aaca8d9