TODO Another hack to compile

Author: ianrrees

hal/src/lib.rs

@@ -2,6 +2,8 @@
 
 // TODO Allows using hal_cfg to gate clock v2 for thumbv6, nightly only
 #![feature(proc_macro_hygiene)]
+// TODO as above
+#![feature(stmt_expr_attributes)]
 
 pub use embedded_hal_1 as ehal;
 use embedded_hal_02 as ehal_02;