Sep 01 17:03:43.630 INFO checking SimonSapin/rust-on-bbc-microbit against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53851
Sep 01 17:03:43.630 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 01 17:03:43.631 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53851/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-1/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/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 +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 17:03:43.851 INFO blam! eb0ce17df07bf23453c1c73741bfbffe4320615934a641875515d55830918628
Sep 01 17:03:43.853 INFO running `"docker" "start" "-a" "eb0ce17df07bf23453c1c73741bfbffe4320615934a641875515d55830918628"`
Sep 01 17:03:44.539 INFO kablam!     Checking rust-on-bbc-microbit v0.1.0 (file:///source)
Sep 01 17:03:44.627 INFO kablam! error[E0522]: definition of an unknown language item: `panic_fmt`
Sep 01 17:03:44.627 INFO kablam!   --> src/lib.rs:29:1
Sep 01 17:03:44.628 INFO kablam!    |
Sep 01 17:03:44.628 INFO kablam! 29 | #[lang = "panic_fmt"]
Sep 01 17:03:44.628 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `panic_fmt`
Sep 01 17:03:44.628 INFO kablam! 
Sep 01 17:03:44.629 INFO kablam! error: `#[panic_handler]` function required, but not found
Sep 01 17:03:44.629 INFO kablam! 
Sep 01 17:03:44.786 INFO kablam! error[E0522]: definition of an unknown language item: `panic_fmt`
Sep 01 17:03:44.786 INFO kablam!   --> src/lib.rs:29:1
Sep 01 17:03:44.786 INFO kablam!    |
Sep 01 17:03:44.786 INFO kablam! 29 | #[lang = "panic_fmt"]
Sep 01 17:03:44.786 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `panic_fmt`
Sep 01 17:03:44.786 INFO kablam! 
Sep 01 17:03:44.787 INFO kablam! error[E0152]: duplicate lang item found: `eh_personality`.
Sep 01 17:03:44.787 INFO kablam!   --> src/lib.rs:44:1
Sep 01 17:03:44.787 INFO kablam!    |
Sep 01 17:03:44.787 INFO kablam! 44 | extern fn eh_personality() {}
Sep 01 17:03:44.787 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 17:03:44.787 INFO kablam!    |
Sep 01 17:03:44.787 INFO kablam!    = note: first defined in crate `panic_unwind`.
Sep 01 17:03:44.787 INFO kablam! 
Sep 01 17:03:44.826 INFO kablam! error: aborting due to 2 previous errors
Sep 01 17:03:44.827 INFO kablam! 
Sep 01 17:03:44.828 INFO kablam! For more information about this error, try `rustc --explain E0522`.
Sep 01 17:03:44.835 INFO kablam! error: Could not compile `rust-on-bbc-microbit`.
Sep 01 17:03:44.835 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 01 17:03:45.039 INFO kablam! error: aborting due to 2 previous errors
Sep 01 17:03:45.039 INFO kablam! 
Sep 01 17:03:45.039 INFO kablam! Some errors occurred: E0152, E0522.
Sep 01 17:03:45.039 INFO kablam! For more information about an error, try `rustc --explain E0152`.
Sep 01 17:03:45.048 INFO kablam! error: Could not compile `rust-on-bbc-microbit`.
Sep 01 17:03:45.048 INFO kablam! 
Sep 01 17:03:45.048 INFO kablam! To learn more, run the command again with --verbose.
Sep 01 17:03:45.049 INFO kablam! su: No module specific data is present
Sep 01 17:03:45.492 INFO running `"docker" "rm" "-f" "eb0ce17df07bf23453c1c73741bfbffe4320615934a641875515d55830918628"`
Sep 01 17:03:45.632 INFO blam! eb0ce17df07bf23453c1c73741bfbffe4320615934a641875515d55830918628