Sep 19 14:38:20.860 INFO checking SimonSapin/rust-on-bbc-microbit against master#ff6422d7a392acfc8af28994d65af2bbaecea4f6 for pr-54346
Sep 19 14:38:20.860 INFO running: cargo +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets
Sep 19 14:38:20.860 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-54346/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54346/worker-4/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/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 +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 19 14:38:21.228 INFO blam! 2dc96ec23ef529f7f8f1ffd4ad27dfc8b1ee66324da2f9d497b1f8f34262d9c3
Sep 19 14:38:21.230 INFO running `"docker" "start" "-a" "2dc96ec23ef529f7f8f1ffd4ad27dfc8b1ee66324da2f9d497b1f8f34262d9c3"`
Sep 19 14:38:22.623 INFO kablam! usermod: no changes
Sep 19 14:38:22.680 INFO kablam!     Checking rust-on-bbc-microbit v0.1.0 (/source)
Sep 19 14:38:22.891 INFO kablam! error[E0522]: definition of an unknown language item: `panic_fmt`
Sep 19 14:38:22.891 INFO kablam!   --> src/lib.rs:29:1
Sep 19 14:38:22.891 INFO kablam!    |
Sep 19 14:38:22.891 INFO kablam! 29 | #[lang = "panic_fmt"]
Sep 19 14:38:22.891 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `panic_fmt`
Sep 19 14:38:22.891 INFO kablam! 
Sep 19 14:38:22.891 INFO kablam! error: `#[panic_handler]` function required, but not found
Sep 19 14:38:22.891 INFO kablam! 
Sep 19 14:38:23.029 INFO kablam! error[E0522]: definition of an unknown language item: `panic_fmt`
Sep 19 14:38:23.029 INFO kablam!   --> src/lib.rs:29:1
Sep 19 14:38:23.029 INFO kablam!    |
Sep 19 14:38:23.029 INFO kablam! 29 | #[lang = "panic_fmt"]
Sep 19 14:38:23.029 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `panic_fmt`
Sep 19 14:38:23.029 INFO kablam! 
Sep 19 14:38:23.029 INFO kablam! error[E0152]: duplicate lang item found: `eh_personality`.
Sep 19 14:38:23.029 INFO kablam!   --> src/lib.rs:44:1
Sep 19 14:38:23.029 INFO kablam!    |
Sep 19 14:38:23.029 INFO kablam! 44 | extern fn eh_personality() {}
Sep 19 14:38:23.029 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 19 14:38:23.029 INFO kablam!    |
Sep 19 14:38:23.029 INFO kablam!    = note: first defined in crate `panic_unwind`.
Sep 19 14:38:23.029 INFO kablam! 
Sep 19 14:38:23.071 INFO kablam! error: aborting due to 2 previous errors
Sep 19 14:38:23.071 INFO kablam! 
Sep 19 14:38:23.071 INFO kablam! For more information about this error, try `rustc --explain E0522`.
Sep 19 14:38:23.091 INFO kablam! error: Could not compile `rust-on-bbc-microbit`.
Sep 19 14:38:23.091 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 19 14:38:23.163 INFO kablam! error: aborting due to 2 previous errors
Sep 19 14:38:23.163 INFO kablam! 
Sep 19 14:38:23.163 INFO kablam! Some errors occurred: E0152, E0522.
Sep 19 14:38:23.163 INFO kablam! For more information about an error, try `rustc --explain E0152`.
Sep 19 14:38:23.171 INFO kablam! error: Could not compile `rust-on-bbc-microbit`.
Sep 19 14:38:23.171 INFO kablam! 
Sep 19 14:38:23.171 INFO kablam! To learn more, run the command again with --verbose.
Sep 19 14:38:23.173 INFO kablam! su: No module specific data is present
Sep 19 14:38:24.376 INFO running `"docker" "rm" "-f" "2dc96ec23ef529f7f8f1ffd4ad27dfc8b1ee66324da2f9d497b1f8f34262d9c3"`
Sep 19 14:38:24.632 INFO blam! 2dc96ec23ef529f7f8f1ffd4ad27dfc8b1ee66324da2f9d497b1f8f34262d9c3