Sep 01 22:42:42.927 INFO checking stm32f303x-memory-map-0.1.1 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53851
Sep 01 22:42:42.927 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 01 22:42:42.927 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53851/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-1/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/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 +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 22:42:43.087 INFO blam! 9f486b4439b4d3ae8f3cde4e34f04a3d8985928e9a02e85977699b6569b04adf
Sep 01 22:42:43.089 INFO running `"docker" "start" "-a" "9f486b4439b4d3ae8f3cde4e34f04a3d8985928e9a02e85977699b6569b04adf"`
Sep 01 22:42:43.643 INFO kablam!    Compiling cortex-m v0.2.12
Sep 01 22:42:43.643 INFO kablam!     Checking cortex-m-semihosting v0.1.3
Sep 01 22:42:44.786 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Sep 01 22:42:44.786 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/cortex-m-0.2.12/src/lib.rs:16:12
Sep 01 22:42:44.787 INFO kablam!    |
Sep 01 22:42:44.787 INFO kablam! 16 | #![feature(const_unsafe_cell_new)]
Sep 01 22:42:44.787 INFO kablam!    |            ^^^^^^^^^^^^^^^^^^^^^
Sep 01 22:42:44.787 INFO kablam! 
Sep 01 22:42:44.804 INFO kablam! error: aborting due to previous error
Sep 01 22:42:44.804 INFO kablam! 
Sep 01 22:42:44.804 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 01 22:42:44.811 INFO kablam! error: Could not compile `cortex-m`.
Sep 01 22:42:44.811 INFO kablam! 
Sep 01 22:42:44.811 INFO kablam! To learn more, run the command again with --verbose.
Sep 01 22:42:44.812 INFO kablam! su: No module specific data is present
Sep 01 22:42:45.201 INFO running `"docker" "rm" "-f" "9f486b4439b4d3ae8f3cde4e34f04a3d8985928e9a02e85977699b6569b04adf"`
Sep 01 22:42:45.308 INFO blam! 9f486b4439b4d3ae8f3cde4e34f04a3d8985928e9a02e85977699b6569b04adf