Aug 17 16:02:21.454 INFO checking nucleo-f042k6-0.2.1 against master#142bb27373126edf8367f526358b6c72ecf1d8df for pr-53426
Aug 17 16:02:21.454 INFO running: cargo +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets
Aug 17 16:02:21.454 INFO creating container for: cargo +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets
Aug 17 16:02:21.454 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53426/master#142bb27373126edf8367f526358b6c72ecf1d8df:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53426/worker-3/master#142bb27373126edf8367f526358b6c72ecf1d8df:/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 +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "crater"`
Aug 17 16:02:21.707 INFO blam! ab405b94b29accf4e54994bf6582bd74ed12fd6fdf3732802ece8accdceabd45
Aug 17 16:02:21.709 INFO running `"docker" "start" "-a" "ab405b94b29accf4e54994bf6582bd74ed12fd6fdf3732802ece8accdceabd45"`
Aug 17 16:02:22.879 INFO kablam!    Compiling cc v1.0.18
Aug 17 16:02:22.879 INFO kablam!     Checking vcell v0.1.0
Aug 17 16:02:22.959 INFO kablam!     Checking void v1.0.2
Aug 17 16:02:22.960 INFO kablam!     Checking aligned v0.2.0
Aug 17 16:02:22.960 INFO kablam!     Checking r0 v0.2.2
Aug 17 16:02:22.960 INFO kablam!    Compiling stm32f042 v0.6.1
Aug 17 16:02:22.961 INFO kablam!     Checking bare-metal v0.2.1
Aug 17 16:02:22.961 INFO kablam!     Checking nb v0.1.1
Aug 17 16:02:24.137 INFO kablam!     Checking panic-abort v0.2.0
Aug 17 16:02:24.165 INFO kablam!    Compiling ssd1306 v0.1.0
Aug 17 16:02:24.241 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 17 16:02:24.241 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/bare-metal-0.2.1/src/lib.rs:7:23
Aug 17 16:02:24.241 INFO kablam!   |
Aug 17 16:02:24.241 INFO kablam! 7 |     feature(const_fn, const_unsafe_cell_new)
Aug 17 16:02:24.241 INFO kablam!   |                       ^^^^^^^^^^^^^^^^^^^^^
Aug 17 16:02:24.241 INFO kablam! 
Aug 17 16:02:24.266 INFO kablam!     Checking cast v0.2.2
Aug 17 16:02:24.283 INFO kablam!     Checking embedded-graphics v0.1.1
Aug 17 16:02:24.287 INFO kablam! error: aborting due to previous error
Aug 17 16:02:24.287 INFO kablam! 
Aug 17 16:02:24.287 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 17 16:02:24.336 INFO kablam! error: Could not compile `bare-metal`.
Aug 17 16:02:24.336 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 17 16:02:35.833 INFO kablam! error: build failed
Aug 17 16:02:35.835 INFO kablam! su: No module specific data is present
Aug 17 16:02:36.375 INFO running `"docker" "rm" "-f" "ab405b94b29accf4e54994bf6582bd74ed12fd6fdf3732802ece8accdceabd45"`
Aug 17 16:02:36.554 INFO blam! ab405b94b29accf4e54994bf6582bd74ed12fd6fdf3732802ece8accdceabd45