Aug 17 16:04:30.747 INFO checking nrf51-0.5.0 against try#a5d98b025f62ace80fe9d2a15781f900fc42515e for pr-53426
Aug 17 16:04:30.747 INFO running: cargo +a5d98b025f62ace80fe9d2a15781f900fc42515e-alt check --frozen --all --all-targets
Aug 17 16:04:30.747 INFO creating container for: cargo +a5d98b025f62ace80fe9d2a15781f900fc42515e-alt check --frozen --all --all-targets
Aug 17 16:04:30.748 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53426/try#a5d98b025f62ace80fe9d2a15781f900fc42515e:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53426/worker-0/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 16:04:30.948 INFO blam! 03243e041c0507e78fff0cd63366156e9d9d21681e79f88f74eeb40f542c5894
Aug 17 16:04:30.951 INFO running `"docker" "start" "-a" "03243e041c0507e78fff0cd63366156e9d9d21681e79f88f74eeb40f542c5894"`
Aug 17 16:04:32.319 INFO kablam!    Compiling nrf51 v0.5.0 (file:///source)
Aug 17 16:04:32.319 INFO kablam!     Checking bare-metal v0.2.1
Aug 17 16:04:32.334 INFO kablam!    Compiling cortex-m-rt v0.5.2
Aug 17 16:04:32.607 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 17 16:04:32.607 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/bare-metal-0.2.1/src/lib.rs:7:23
Aug 17 16:04:32.607 INFO kablam!   |
Aug 17 16:04:32.607 INFO kablam! 7 |     feature(const_fn, const_unsafe_cell_new)
Aug 17 16:04:32.607 INFO kablam!   |                       ^^^^^^^^^^^^^^^^^^^^^
Aug 17 16:04:32.607 INFO kablam! 
Aug 17 16:04:32.610 INFO kablam! error: aborting due to previous error
Aug 17 16:04:32.610 INFO kablam! 
Aug 17 16:04:32.611 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 17 16:04:32.619 INFO kablam! error: Could not compile `bare-metal`.
Aug 17 16:04:32.620 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 17 16:04:34.467 INFO kablam! error: build failed
Aug 17 16:04:34.469 INFO kablam! su: No module specific data is present
Aug 17 16:04:35.180 INFO running `"docker" "rm" "-f" "03243e041c0507e78fff0cd63366156e9d9d21681e79f88f74eeb40f542c5894"`
Aug 17 16:04:35.332 INFO blam! 03243e041c0507e78fff0cd63366156e9d9d21681e79f88f74eeb40f542c5894