Sep 05 22:54:42.152 INFO checking stm32f429x-0.3.1 against master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6 for pr-53854
Sep 05 22:54:42.153 INFO running: cargo +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets
Sep 05 22:54:42.153 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53854/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-1/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/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 +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 05 22:54:42.399 INFO blam! 60b9f559253d397d3bef8476d46d241797beeefe1bbc2591f31f73708bd956fd
Sep 05 22:54:42.401 INFO running `"docker" "start" "-a" "60b9f559253d397d3bef8476d46d241797beeefe1bbc2591f31f73708bd956fd"`
Sep 05 22:54:44.433 INFO kablam! usermod: no changes
Sep 05 22:54:44.571 INFO kablam!    Compiling cortex-m v0.2.12
Sep 05 22:54:44.571 INFO kablam!     Checking cortex-m-semihosting v0.1.3
Sep 05 22:54:46.127 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Sep 05 22:54:46.127 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/cortex-m-0.2.12/src/lib.rs:16:12
Sep 05 22:54:46.127 INFO kablam!    |
Sep 05 22:54:46.127 INFO kablam! 16 | #![feature(const_unsafe_cell_new)]
Sep 05 22:54:46.127 INFO kablam!    |            ^^^^^^^^^^^^^^^^^^^^^
Sep 05 22:54:46.127 INFO kablam! 
Sep 05 22:54:46.138 INFO kablam! error: aborting due to previous error
Sep 05 22:54:46.139 INFO kablam! 
Sep 05 22:54:46.139 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 05 22:54:46.158 INFO kablam! error: Could not compile `cortex-m`.
Sep 05 22:54:46.158 INFO kablam! 
Sep 05 22:54:46.158 INFO kablam! To learn more, run the command again with --verbose.
Sep 05 22:54:46.160 INFO kablam! su: No module specific data is present
Sep 05 22:54:47.611 INFO running `"docker" "rm" "-f" "60b9f559253d397d3bef8476d46d241797beeefe1bbc2591f31f73708bd956fd"`
Sep 05 22:54:47.738 INFO blam! 60b9f559253d397d3bef8476d46d241797beeefe1bbc2591f31f73708bd956fd