Sep 05 19:43:09.306 INFO checking SimonSapin/rust-on-bbc-microbit against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 05 19:43:09.306 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 05 19:43:09.306 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-0/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/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=1000" "-e" "CMD=cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 05 19:43:09.778 INFO blam! 0bed9964d9f7d155c3be2e60370832c3e6cacf44e712395df3722ad09cd54575
Sep 05 19:43:09.779 INFO running `"docker" "start" "-a" "0bed9964d9f7d155c3be2e60370832c3e6cacf44e712395df3722ad09cd54575"`
Sep 05 19:43:11.273 INFO kablam! usermod: no changes
Sep 05 19:43:11.326 INFO kablam!     Checking rust-on-bbc-microbit v0.1.0 (file:///source)
Sep 05 19:43:11.452 INFO kablam! error[E0522]: definition of an unknown language item: `panic_fmt`
Sep 05 19:43:11.452 INFO kablam!   --> src/lib.rs:29:1
Sep 05 19:43:11.452 INFO kablam!    |
Sep 05 19:43:11.452 INFO kablam! 29 | #[lang = "panic_fmt"]
Sep 05 19:43:11.452 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `panic_fmt`
Sep 05 19:43:11.452 INFO kablam! 
Sep 05 19:43:11.452 INFO kablam! error: `#[panic_handler]` function required, but not found
Sep 05 19:43:11.452 INFO kablam! 
Sep 05 19:43:11.544 INFO kablam! error[E0522]: definition of an unknown language item: `panic_fmt`
Sep 05 19:43:11.544 INFO kablam!   --> src/lib.rs:29:1
Sep 05 19:43:11.544 INFO kablam!    |
Sep 05 19:43:11.544 INFO kablam! 29 | #[lang = "panic_fmt"]
Sep 05 19:43:11.544 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `panic_fmt`
Sep 05 19:43:11.544 INFO kablam! 
Sep 05 19:43:11.544 INFO kablam! error[E0152]: duplicate lang item found: `eh_personality`.
Sep 05 19:43:11.544 INFO kablam!   --> src/lib.rs:44:1
Sep 05 19:43:11.544 INFO kablam!    |
Sep 05 19:43:11.544 INFO kablam! 44 | extern fn eh_personality() {}
Sep 05 19:43:11.544 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 05 19:43:11.544 INFO kablam!    |
Sep 05 19:43:11.544 INFO kablam!    = note: first defined in crate `panic_unwind`.
Sep 05 19:43:11.544 INFO kablam! 
Sep 05 19:43:11.563 INFO kablam! error: aborting due to 2 previous errors
Sep 05 19:43:11.563 INFO kablam! 
Sep 05 19:43:11.563 INFO kablam! For more information about this error, try `rustc --explain E0522`.
Sep 05 19:43:11.585 INFO kablam! error: Could not compile `rust-on-bbc-microbit`.
Sep 05 19:43:11.585 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 05 19:43:11.657 INFO kablam! error: aborting due to 2 previous errors
Sep 05 19:43:11.657 INFO kablam! 
Sep 05 19:43:11.658 INFO kablam! Some errors occurred: E0152, E0522.
Sep 05 19:43:11.658 INFO kablam! For more information about an error, try `rustc --explain E0152`.
Sep 05 19:43:11.669 INFO kablam! error: Could not compile `rust-on-bbc-microbit`.
Sep 05 19:43:11.669 INFO kablam! 
Sep 05 19:43:11.669 INFO kablam! To learn more, run the command again with --verbose.
Sep 05 19:43:11.669 INFO kablam! su: No module specific data is present
Sep 05 19:43:13.189 INFO running `"docker" "rm" "-f" "0bed9964d9f7d155c3be2e60370832c3e6cacf44e712395df3722ad09cd54575"`
Sep 05 19:43:13.385 INFO blam! 0bed9964d9f7d155c3be2e60370832c3e6cacf44e712395df3722ad09cd54575