Sep 06 09:48:03.905 INFO checking atsam4lc8c-0.1.1 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 06 09:48:03.905 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 06 09:48:03.905 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-7/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-7/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/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 +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 09:48:04.081 INFO blam! 430c0055edbb65e9f763d41867141de82ed05bb24bdd1eff1c458c37c923a132
Sep 06 09:48:04.083 INFO running `"docker" "start" "-a" "430c0055edbb65e9f763d41867141de82ed05bb24bdd1eff1c458c37c923a132"`
Sep 06 09:48:04.769 INFO kablam! usermod: no changes
Sep 06 09:48:04.846 INFO kablam!    Compiling cortex-m-semihosting v0.3.1
Sep 06 09:48:04.846 INFO kablam!    Compiling cortex-m-rt v0.5.3
Sep 06 09:48:04.855 INFO kablam!    Compiling atsam4lc8c v0.1.1 (file:///source)
Sep 06 09:48:06.543 INFO kablam!     Checking cortex-m-log v0.2.0
Sep 06 09:48:06.543 INFO kablam!     Checking panic-semihosting v0.2.0
Sep 06 09:48:07.059 INFO kablam! error[E0522]: definition of an unknown language item: `panic_fmt`
Sep 06 09:48:07.059 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/panic-semihosting-0.2.0/src/lib.rs:67:1
Sep 06 09:48:07.060 INFO kablam!    |
Sep 06 09:48:07.060 INFO kablam! 67 | #[lang = "panic_fmt"]
Sep 06 09:48:07.060 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `panic_fmt`
Sep 06 09:48:07.060 INFO kablam! 
Sep 06 09:48:07.082 INFO kablam! error: aborting due to previous error
Sep 06 09:48:07.097 INFO kablam! 
Sep 06 09:48:07.097 INFO kablam! For more information about this error, try `rustc --explain E0522`.
Sep 06 09:48:07.102 INFO kablam! error: Could not compile `panic-semihosting`.
Sep 06 09:48:07.103 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 06 09:48:45.164 INFO kablam! error: build failed
Sep 06 09:48:45.165 INFO kablam! su: No module specific data is present
Sep 06 09:48:45.800 INFO running `"docker" "rm" "-f" "430c0055edbb65e9f763d41867141de82ed05bb24bdd1eff1c458c37c923a132"`
Sep 06 09:48:45.902 INFO blam! 430c0055edbb65e9f763d41867141de82ed05bb24bdd1eff1c458c37c923a132