Aug 18 01:12:37.443 INFO checking cortex-m-rt-0.3.15 against try#a5d98b025f62ace80fe9d2a15781f900fc42515e for pr-53426
Aug 18 01:12:37.443 INFO running: cargo +a5d98b025f62ace80fe9d2a15781f900fc42515e-alt check --frozen --all --all-targets
Aug 18 01:12:37.443 INFO creating container for: cargo +a5d98b025f62ace80fe9d2a15781f900fc42515e-alt check --frozen --all --all-targets
Aug 18 01:12:37.443 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53426/try#a5d98b025f62ace80fe9d2a15781f900fc42515e:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53426/worker-3/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 18 01:12:37.677 INFO blam! 6646b4e1e14225e3ab19fd3db112b8432501890139c7f3fd41cdd60395556efa
Aug 18 01:12:37.680 INFO running `"docker" "start" "-a" "6646b4e1e14225e3ab19fd3db112b8432501890139c7f3fd41cdd60395556efa"`
Aug 18 01:12:38.774 INFO kablam!     Checking bare-metal v0.1.2
Aug 18 01:12:38.783 INFO kablam!    Compiling num-integer v0.1.39
Aug 18 01:12:39.014 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 18 01:12:39.014 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/bare-metal-0.1.2/src/lib.rs:5:53
Aug 18 01:12:39.014 INFO kablam!   |
Aug 18 01:12:39.014 INFO kablam! 5 | #![cfg_attr(feature = "const-fn", feature(const_fn, const_unsafe_cell_new))]
Aug 18 01:12:39.014 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Aug 18 01:12:39.014 INFO kablam! 
Aug 18 01:12:39.015 INFO kablam! error: aborting due to previous error
Aug 18 01:12:39.016 INFO kablam! 
Aug 18 01:12:39.016 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 18 01:12:39.027 INFO kablam! error: Could not compile `bare-metal`.
Aug 18 01:12:39.027 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 18 01:12:41.717 INFO kablam! error: build failed
Aug 18 01:12:41.719 INFO kablam! su: No module specific data is present
Aug 18 01:12:42.280 INFO running `"docker" "rm" "-f" "6646b4e1e14225e3ab19fd3db112b8432501890139c7f3fd41cdd60395556efa"`
Aug 18 01:12:42.433 INFO blam! 6646b4e1e14225e3ab19fd3db112b8432501890139c7f3fd41cdd60395556efa