Floss: Exclude uninteresting warning from Linux build

Added rust flags to hide uninterested warning categories so that we can
see more useful warnings easily.

Bug: 179821440
Tag: Floss
Test: Build Floss on Linux with build.py

Change-Id: I168322d83053a2889f9487fb92b2d9220eb82d35

1 files changed, 2 insertions, 0 deletions

diff --git a/build.py b/build.py
index 2bffdc3182..b93935a781 100755
--- a/build.py
+++ b/build.py
@@ -227,6 +227,8 @@ class HostBuild():
             '{}/out/Default'.format(self.output_dir),
             '-C',
             'link-arg=-Wl,--allow-multiple-definition',
+            # exclude uninteresting warnings
+            '-A improper_ctypes_definitions -A improper_ctypes -A unknown_lints',
         ]
 
         return ' '.join(rust_flags)