Aug 02 10:26:20.608 INFO checking f3-0.6.1 against 1.27.2 for lazy_static-1
Aug 02 10:26:20.608 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 10:26:20.608 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 10:26:20.608 INFO running `"docker" "create" "-v" "/tmp/crater.Y46MazAGwhRs:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-0/1.27.2:/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" "-v" "/home/ec2-user/crater/./work/local/cargo-home/git:/cargo-home/git:rw,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +1.27.2 check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Aug 02 10:26:20.807 INFO blam! ac81c57db71a7b25cacb3a4bfc16a7466a0385b9cbf87c50ecb6cae5fc27d703
Aug 02 10:26:20.809 INFO running `"docker" "start" "-a" "ac81c57db71a7b25cacb3a4bfc16a7466a0385b9cbf87c50ecb6cae5fc27d703"`
Aug 02 10:26:22.111 INFO kablam!    Compiling stm32f30x v0.7.0
Aug 02 10:26:22.113 INFO kablam!    Compiling f3 v0.6.1 (file:///source)
Aug 02 10:26:22.113 INFO kablam!     Checking m v0.1.1
Aug 02 10:26:22.113 INFO kablam!     Checking cobs v0.1.3
Aug 02 10:26:22.114 INFO kablam!    Compiling cortex-m-semihosting v0.3.0
Aug 02 10:26:22.115 INFO kablam!    Compiling cortex-m-rt v0.5.1
Aug 02 10:26:22.116 INFO kablam!     Checking lsm303dlhc v0.2.0
Aug 02 10:26:22.118 INFO kablam!     Checking mat v0.2.0
Aug 02 10:26:22.231 INFO kablam!     Checking l3gd20 v0.2.0
Aug 02 10:26:23.395 INFO kablam!     Checking madgwick v0.1.1
Aug 02 10:26:25.737 INFO kablam!     Checking panic-semihosting v0.3.0
Aug 02 10:26:26.012 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 10:26:26.012 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/panic-semihosting-0.3.0/src/lib.rs:59:1
Aug 02 10:26:26.012 INFO kablam!    |
Aug 02 10:26:26.012 INFO kablam! 59 | #![feature(panic_implementation)]
Aug 02 10:26:26.012 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 10:26:26.012 INFO kablam! 
Aug 02 10:26:26.012 INFO kablam! error[E0658]: The attribute `panic_implementation` is currently unknown to the compiler and may have meaning added to it in the future (see issue #29642)
Aug 02 10:26:26.012 INFO kablam!   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/panic-semihosting-0.3.0/src/lib.rs:71:1
Aug 02 10:26:26.012 INFO kablam!    |
Aug 02 10:26:26.013 INFO kablam! 71 | #[panic_implementation]
Aug 02 10:26:26.013 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 10:26:26.013 INFO kablam! 
Aug 02 10:26:26.013 INFO kablam! error: aborting due to 2 previous errors
Aug 02 10:26:26.013 INFO kablam! 
Aug 02 10:26:26.013 INFO kablam! Some errors occurred: E0554, E0658.
Aug 02 10:26:26.013 INFO kablam! For more information about an error, try `rustc --explain E0554`.
Aug 02 10:26:26.017 INFO kablam! error: Could not compile `panic-semihosting`.
Aug 02 10:26:26.017 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 10:27:41.097 INFO kablam! error: build failed
Aug 02 10:27:41.099 INFO kablam! su: No module specific data is present
Aug 02 10:27:41.622 INFO running `"docker" "rm" "-f" "ac81c57db71a7b25cacb3a4bfc16a7466a0385b9cbf87c50ecb6cae5fc27d703"`
Aug 02 10:27:41.783 INFO blam! ac81c57db71a7b25cacb3a4bfc16a7466a0385b9cbf87c50ecb6cae5fc27d703