Sep 14 05:20:29.955 INFO checking SimonSapin/rust-on-bbc-microbit against try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0 for pr-53578-1
Sep 14 05:20:29.955 INFO running: cargo +87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0-alt check --frozen --all --all-targets
Sep 14 05:20:29.955 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-53578-1/try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578-1/worker-4/try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0:/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 +87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 14 05:20:30.343 INFO blam! 2cbeca23b007cdcbde5c3b61cab777d473581f0fda666eb41ab61879cb0b8d3e
Sep 14 05:20:30.345 INFO running `"docker" "start" "-a" "2cbeca23b007cdcbde5c3b61cab777d473581f0fda666eb41ab61879cb0b8d3e"`
Sep 14 05:20:31.535 INFO kablam! usermod: no changes
Sep 14 05:20:31.584 INFO kablam!     Checking rust-on-bbc-microbit v0.1.0 (file:///source)
Sep 14 05:20:31.727 INFO kablam! error[E0522]: definition of an unknown language item: `panic_fmt`
Sep 14 05:20:31.727 INFO kablam!   --> src/lib.rs:29:1
Sep 14 05:20:31.727 INFO kablam!    |
Sep 14 05:20:31.727 INFO kablam! 29 | #[lang = "panic_fmt"]
Sep 14 05:20:31.727 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `panic_fmt`
Sep 14 05:20:31.727 INFO kablam! 
Sep 14 05:20:31.727 INFO kablam! error: `#[panic_handler]` function required, but not found
Sep 14 05:20:31.727 INFO kablam! 
Sep 14 05:20:31.791 INFO kablam! error: aborting due to 2 previous errors
Sep 14 05:20:31.791 INFO kablam! 
Sep 14 05:20:31.791 INFO kablam! For more information about this error, try `rustc --explain E0522`.
Sep 14 05:20:31.799 INFO kablam! error: Could not compile `rust-on-bbc-microbit`.
Sep 14 05:20:31.799 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 14 05:20:31.865 INFO kablam! error[E0522]: definition of an unknown language item: `panic_fmt`
Sep 14 05:20:31.865 INFO kablam!   --> src/lib.rs:29:1
Sep 14 05:20:31.865 INFO kablam!    |
Sep 14 05:20:31.865 INFO kablam! 29 | #[lang = "panic_fmt"]
Sep 14 05:20:31.865 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `panic_fmt`
Sep 14 05:20:31.865 INFO kablam! 
Sep 14 05:20:31.865 INFO kablam! error[E0152]: duplicate lang item found: `eh_personality`.
Sep 14 05:20:31.865 INFO kablam!   --> src/lib.rs:44:1
Sep 14 05:20:31.865 INFO kablam!    |
Sep 14 05:20:31.865 INFO kablam! 44 | extern fn eh_personality() {}
Sep 14 05:20:31.865 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 14 05:20:31.865 INFO kablam!    |
Sep 14 05:20:31.865 INFO kablam!    = note: first defined in crate `panic_unwind`.
Sep 14 05:20:31.865 INFO kablam! 
Sep 14 05:20:31.935 INFO kablam! error: aborting due to 2 previous errors
Sep 14 05:20:31.935 INFO kablam! 
Sep 14 05:20:31.935 INFO kablam! Some errors occurred: E0152, E0522.
Sep 14 05:20:31.935 INFO kablam! For more information about an error, try `rustc --explain E0152`.
Sep 14 05:20:31.938 INFO kablam! error: Could not compile `rust-on-bbc-microbit`.
Sep 14 05:20:31.938 INFO kablam! 
Sep 14 05:20:31.938 INFO kablam! To learn more, run the command again with --verbose.
Sep 14 05:20:31.938 INFO kablam! su: No module specific data is present
Sep 14 05:20:32.713 INFO running `"docker" "rm" "-f" "2cbeca23b007cdcbde5c3b61cab777d473581f0fda666eb41ab61879cb0b8d3e"`
Sep 14 05:20:32.974 INFO blam! 2cbeca23b007cdcbde5c3b61cab777d473581f0fda666eb41ab61879cb0b8d3e