Sep 03 23:58:22.540 INFO checking SimonSapin/rust-on-bbc-microbit against try#5fe695a3844714c70e8f7731a553f7947987a68a for pr-53913
Sep 03 23:58:22.540 INFO running: cargo +5fe695a3844714c70e8f7731a553f7947987a68a-alt check --frozen --all --all-targets
Sep 03 23:58:22.540 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53913/try#5fe695a3844714c70e8f7731a553f7947987a68a:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53913/worker-1/try#5fe695a3844714c70e8f7731a553f7947987a68a:/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 +5fe695a3844714c70e8f7731a553f7947987a68a-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 03 23:58:22.788 INFO blam! eae2ce402a5503c3afa181a61c831d03e350b02e952892e85ed1c94472b5dff6
Sep 03 23:58:22.791 INFO running `"docker" "start" "-a" "eae2ce402a5503c3afa181a61c831d03e350b02e952892e85ed1c94472b5dff6"`
Sep 03 23:58:23.631 INFO kablam!     Checking rust-on-bbc-microbit v0.1.0 (file:///source)
Sep 03 23:58:23.841 INFO kablam! error[E0522]: definition of an unknown language item: `panic_fmt`
Sep 03 23:58:23.841 INFO kablam!   --> src/lib.rs:29:1
Sep 03 23:58:23.841 INFO kablam!    |
Sep 03 23:58:23.841 INFO kablam! 29 | #[lang = "panic_fmt"]
Sep 03 23:58:23.841 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `panic_fmt`
Sep 03 23:58:23.841 INFO kablam! 
Sep 03 23:58:23.841 INFO kablam! error: `#[panic_handler]` function required, but not found
Sep 03 23:58:23.842 INFO kablam! 
Sep 03 23:58:24.009 INFO kablam! error: aborting due to 2 previous errors
Sep 03 23:58:24.010 INFO kablam! 
Sep 03 23:58:24.010 INFO kablam! For more information about this error, try `rustc --explain E0522`.
Sep 03 23:58:24.016 INFO kablam! error: Could not compile `rust-on-bbc-microbit`.
Sep 03 23:58:24.017 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 03 23:58:24.024 INFO kablam! error[E0522]: definition of an unknown language item: `panic_fmt`
Sep 03 23:58:24.024 INFO kablam!   --> src/lib.rs:29:1
Sep 03 23:58:24.024 INFO kablam!    |
Sep 03 23:58:24.024 INFO kablam! 29 | #[lang = "panic_fmt"]
Sep 03 23:58:24.024 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `panic_fmt`
Sep 03 23:58:24.024 INFO kablam! 
Sep 03 23:58:24.025 INFO kablam! error[E0152]: duplicate lang item found: `eh_personality`.
Sep 03 23:58:24.025 INFO kablam!   --> src/lib.rs:44:1
Sep 03 23:58:24.025 INFO kablam!    |
Sep 03 23:58:24.025 INFO kablam! 44 | extern fn eh_personality() {}
Sep 03 23:58:24.025 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 03 23:58:24.025 INFO kablam!    |
Sep 03 23:58:24.025 INFO kablam!    = note: first defined in crate `panic_unwind`.
Sep 03 23:58:24.025 INFO kablam! 
Sep 03 23:58:24.138 INFO kablam! error: aborting due to 2 previous errors
Sep 03 23:58:24.138 INFO kablam! 
Sep 03 23:58:24.138 INFO kablam! Some errors occurred: E0152, E0522.
Sep 03 23:58:24.138 INFO kablam! For more information about an error, try `rustc --explain E0152`.
Sep 03 23:58:24.149 INFO kablam! error: Could not compile `rust-on-bbc-microbit`.
Sep 03 23:58:24.149 INFO kablam! 
Sep 03 23:58:24.149 INFO kablam! To learn more, run the command again with --verbose.
Sep 03 23:58:24.151 INFO kablam! su: No module specific data is present
Sep 03 23:58:24.662 INFO running `"docker" "rm" "-f" "eae2ce402a5503c3afa181a61c831d03e350b02e952892e85ed1c94472b5dff6"`
Sep 03 23:58:24.846 INFO blam! eae2ce402a5503c3afa181a61c831d03e350b02e952892e85ed1c94472b5dff6