Aug 18 03:11:55.992 INFO checking bare-metal-0.1.2 against master#142bb27373126edf8367f526358b6c72ecf1d8df for pr-53426
Aug 18 03:11:55.992 INFO running: cargo +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets
Aug 18 03:11:55.992 INFO creating container for: cargo +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets
Aug 18 03:11:55.992 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-53426/master#142bb27373126edf8367f526358b6c72ecf1d8df:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53426/worker-5/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 18 03:11:56.187 INFO blam! b830fa814001534a8d228e95b48ea0ee9a085c83f85819c84b2a57837ca9df51
Aug 18 03:11:56.192 INFO running `"docker" "start" "-a" "b830fa814001534a8d228e95b48ea0ee9a085c83f85819c84b2a57837ca9df51"`
Aug 18 03:11:57.378 INFO kablam!     Checking bare-metal v0.1.2 (file:///source)
Aug 18 03:11:57.483 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 18 03:11:57.483 INFO kablam!  --> src/lib.rs:5:53
Aug 18 03:11:57.483 INFO kablam!   |
Aug 18 03:11:57.483 INFO kablam! 5 | #![cfg_attr(feature = "const-fn", feature(const_fn, const_unsafe_cell_new))]
Aug 18 03:11:57.483 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Aug 18 03:11:57.483 INFO kablam! 
Aug 18 03:11:57.485 INFO kablam! error: aborting due to previous error
Aug 18 03:11:57.485 INFO kablam! 
Aug 18 03:11:57.485 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 18 03:11:57.491 INFO kablam! error: Could not compile `bare-metal`.
Aug 18 03:11:57.491 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 18 03:11:57.843 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 18 03:11:57.843 INFO kablam!  --> src/lib.rs:5:53
Aug 18 03:11:57.843 INFO kablam!   |
Aug 18 03:11:57.843 INFO kablam! 5 | #![cfg_attr(feature = "const-fn", feature(const_fn, const_unsafe_cell_new))]
Aug 18 03:11:57.843 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Aug 18 03:11:57.843 INFO kablam! 
Aug 18 03:11:57.847 INFO kablam! error: aborting due to previous error
Aug 18 03:11:57.847 INFO kablam! 
Aug 18 03:11:57.847 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 18 03:11:57.854 INFO kablam! error: Could not compile `bare-metal`.
Aug 18 03:11:57.854 INFO kablam! 
Aug 18 03:11:57.854 INFO kablam! To learn more, run the command again with --verbose.
Aug 18 03:11:57.856 INFO kablam! su: No module specific data is present
Aug 18 03:11:58.397 INFO running `"docker" "rm" "-f" "b830fa814001534a8d228e95b48ea0ee9a085c83f85819c84b2a57837ca9df51"`
Aug 18 03:11:58.543 INFO blam! b830fa814001534a8d228e95b48ea0ee9a085c83f85819c84b2a57837ca9df51