Sep 01 17:03:43.261 INFO checking SimonSapin/rust-on-bbc-microbit against try#952c7dbfa2628309f557b367929ffc17af20b332 for pr-53851
Sep 01 17:03:43.261 INFO running: cargo +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets
Sep 01 17:03:43.261 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53851/try#952c7dbfa2628309f557b367929ffc17af20b332:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-0/try#952c7dbfa2628309f557b367929ffc17af20b332:/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 +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 17:03:43.482 INFO blam! e5ac070157de42170608990b92930b0562f0dc1eb971ff1fe2b632bb38961e2d
Sep 01 17:03:43.484 INFO running `"docker" "start" "-a" "e5ac070157de42170608990b92930b0562f0dc1eb971ff1fe2b632bb38961e2d"`
Sep 01 17:03:44.198 INFO kablam!     Checking rust-on-bbc-microbit v0.1.0 (file:///source)
Sep 01 17:03:44.295 INFO kablam! error[E0522]: definition of an unknown language item: `panic_fmt`
Sep 01 17:03:44.296 INFO kablam!   --> src/lib.rs:29:1
Sep 01 17:03:44.296 INFO kablam!    |
Sep 01 17:03:44.296 INFO kablam! 29 | #[lang = "panic_fmt"]
Sep 01 17:03:44.296 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `panic_fmt`
Sep 01 17:03:44.296 INFO kablam! 
Sep 01 17:03:44.296 INFO kablam! error: `#[panic_handler]` function required, but not found
Sep 01 17:03:44.296 INFO kablam! 
Sep 01 17:03:44.478 INFO kablam! error[E0522]: definition of an unknown language item: `panic_fmt`
Sep 01 17:03:44.478 INFO kablam!   --> src/lib.rs:29:1
Sep 01 17:03:44.478 INFO kablam!    |
Sep 01 17:03:44.478 INFO kablam! 29 | #[lang = "panic_fmt"]
Sep 01 17:03:44.478 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `panic_fmt`
Sep 01 17:03:44.479 INFO kablam! 
Sep 01 17:03:44.479 INFO kablam! error[E0152]: duplicate lang item found: `eh_personality`.
Sep 01 17:03:44.479 INFO kablam!   --> src/lib.rs:44:1
Sep 01 17:03:44.479 INFO kablam!    |
Sep 01 17:03:44.479 INFO kablam! 44 | extern fn eh_personality() {}
Sep 01 17:03:44.479 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 17:03:44.479 INFO kablam!    |
Sep 01 17:03:44.479 INFO kablam!    = note: first defined in crate `panic_unwind`.
Sep 01 17:03:44.479 INFO kablam! 
Sep 01 17:03:44.488 INFO kablam! error: aborting due to 2 previous errors
Sep 01 17:03:44.488 INFO kablam! 
Sep 01 17:03:44.488 INFO kablam! For more information about this error, try `rustc --explain E0522`.
Sep 01 17:03:44.495 INFO kablam! error: Could not compile `rust-on-bbc-microbit`.
Sep 01 17:03:44.495 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 01 17:03:44.724 INFO kablam! error: aborting due to 2 previous errors
Sep 01 17:03:44.724 INFO kablam! 
Sep 01 17:03:44.724 INFO kablam! Some errors occurred: E0152, E0522.
Sep 01 17:03:44.724 INFO kablam! For more information about an error, try `rustc --explain E0152`.
Sep 01 17:03:44.733 INFO kablam! error: Could not compile `rust-on-bbc-microbit`.
Sep 01 17:03:44.733 INFO kablam! 
Sep 01 17:03:44.733 INFO kablam! To learn more, run the command again with --verbose.
Sep 01 17:03:44.735 INFO kablam! su: No module specific data is present
Sep 01 17:03:45.202 INFO running `"docker" "rm" "-f" "e5ac070157de42170608990b92930b0562f0dc1eb971ff1fe2b632bb38961e2d"`
Sep 01 17:03:45.367 INFO blam! e5ac070157de42170608990b92930b0562f0dc1eb971ff1fe2b632bb38961e2d