Sep 03 20:15:50.663 INFO checking SimonSapin/rust-on-bbc-microbit against master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c for pr-53893
Sep 03 20:15:50.663 INFO running: cargo +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets
Sep 03 20:15:50.664 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53893/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-1/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/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 +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 03 20:15:50.910 INFO blam! 0901249e3ba986800258082b025b4b77ed23d94a6dcb123f7d280f052fb898a8
Sep 03 20:15:50.912 INFO running `"docker" "start" "-a" "0901249e3ba986800258082b025b4b77ed23d94a6dcb123f7d280f052fb898a8"`
Sep 03 20:15:51.796 INFO kablam!     Checking rust-on-bbc-microbit v0.1.0 (file:///source)
Sep 03 20:15:51.960 INFO kablam! error[E0522]: definition of an unknown language item: `panic_fmt`
Sep 03 20:15:51.960 INFO kablam!   --> src/lib.rs:29:1
Sep 03 20:15:51.960 INFO kablam!    |
Sep 03 20:15:51.960 INFO kablam! 29 | #[lang = "panic_fmt"]
Sep 03 20:15:51.960 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `panic_fmt`
Sep 03 20:15:51.960 INFO kablam! 
Sep 03 20:15:51.960 INFO kablam! error: `#[panic_handler]` function required, but not found
Sep 03 20:15:51.960 INFO kablam! 
Sep 03 20:15:52.139 INFO kablam! error: aborting due to 2 previous errors
Sep 03 20:15:52.140 INFO kablam! 
Sep 03 20:15:52.140 INFO kablam! For more information about this error, try `rustc --explain E0522`.
Sep 03 20:15:52.141 INFO kablam! error[E0522]: definition of an unknown language item: `panic_fmt`
Sep 03 20:15:52.141 INFO kablam!   --> src/lib.rs:29:1
Sep 03 20:15:52.141 INFO kablam!    |
Sep 03 20:15:52.141 INFO kablam! 29 | #[lang = "panic_fmt"]
Sep 03 20:15:52.141 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `panic_fmt`
Sep 03 20:15:52.141 INFO kablam! 
Sep 03 20:15:52.142 INFO kablam! error[E0152]: duplicate lang item found: `eh_personality`.
Sep 03 20:15:52.142 INFO kablam!   --> src/lib.rs:44:1
Sep 03 20:15:52.142 INFO kablam!    |
Sep 03 20:15:52.142 INFO kablam! 44 | extern fn eh_personality() {}
Sep 03 20:15:52.142 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 03 20:15:52.142 INFO kablam!    |
Sep 03 20:15:52.142 INFO kablam!    = note: first defined in crate `panic_unwind`.
Sep 03 20:15:52.142 INFO kablam! 
Sep 03 20:15:52.146 INFO kablam! error: Could not compile `rust-on-bbc-microbit`.
Sep 03 20:15:52.146 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 03 20:15:52.339 INFO kablam! error: aborting due to 2 previous errors
Sep 03 20:15:52.340 INFO kablam! 
Sep 03 20:15:52.340 INFO kablam! Some errors occurred: E0152, E0522.
Sep 03 20:15:52.340 INFO kablam! For more information about an error, try `rustc --explain E0152`.
Sep 03 20:15:52.346 INFO kablam! error: Could not compile `rust-on-bbc-microbit`.
Sep 03 20:15:52.346 INFO kablam! 
Sep 03 20:15:52.346 INFO kablam! To learn more, run the command again with --verbose.
Sep 03 20:15:52.348 INFO kablam! su: No module specific data is present
Sep 03 20:15:52.803 INFO running `"docker" "rm" "-f" "0901249e3ba986800258082b025b4b77ed23d94a6dcb123f7d280f052fb898a8"`
Sep 03 20:15:52.956 INFO blam! 0901249e3ba986800258082b025b4b77ed23d94a6dcb123f7d280f052fb898a8