Aug 17 16:59:51.118 INFO checking mk20d7-hal-0.1.0 against try#a5d98b025f62ace80fe9d2a15781f900fc42515e for pr-53426
Aug 17 16:59:51.119 INFO running: cargo +a5d98b025f62ace80fe9d2a15781f900fc42515e-alt check --frozen --all --all-targets
Aug 17 16:59:51.119 INFO creating container for: cargo +a5d98b025f62ace80fe9d2a15781f900fc42515e-alt check --frozen --all --all-targets
Aug 17 16:59:51.119 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-53426/try#a5d98b025f62ace80fe9d2a15781f900fc42515e:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53426/worker-4/try#a5d98b025f62ace80fe9d2a15781f900fc42515e:/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 +a5d98b025f62ace80fe9d2a15781f900fc42515e-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "crater"`
Aug 17 16:59:51.362 INFO blam! d542e408cfb24524c16f4a98917b7d662c191a4f7dc724ff0f52c43d58b154af
Aug 17 16:59:51.364 INFO running `"docker" "start" "-a" "d542e408cfb24524c16f4a98917b7d662c191a4f7dc724ff0f52c43d58b154af"`
Aug 17 16:59:52.399 INFO kablam!    Compiling mk20d7 v0.1.1
Aug 17 16:59:52.400 INFO kablam!     Checking bare-metal v0.1.2
Aug 17 16:59:52.405 INFO kablam!     Checking embedded-hal v0.1.3
Aug 17 16:59:52.666 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 17 16:59:52.667 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/bare-metal-0.1.2/src/lib.rs:5:53
Aug 17 16:59:52.667 INFO kablam!   |
Aug 17 16:59:52.667 INFO kablam! 5 | #![cfg_attr(feature = "const-fn", feature(const_fn, const_unsafe_cell_new))]
Aug 17 16:59:52.667 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Aug 17 16:59:52.667 INFO kablam! 
Aug 17 16:59:52.667 INFO kablam! error: aborting due to previous error
Aug 17 16:59:52.667 INFO kablam! 
Aug 17 16:59:52.667 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 17 16:59:52.668 INFO kablam! error: Could not compile `bare-metal`.
Aug 17 16:59:52.668 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 17 16:59:53.935 INFO kablam! error: build failed
Aug 17 16:59:53.940 INFO kablam! su: No module specific data is present
Aug 17 16:59:54.478 INFO running `"docker" "rm" "-f" "d542e408cfb24524c16f4a98917b7d662c191a4f7dc724ff0f52c43d58b154af"`
Aug 17 16:59:54.654 INFO blam! d542e408cfb24524c16f4a98917b7d662c191a4f7dc724ff0f52c43d58b154af