Could not find protoc installation and this build crate cannot proceed without
this knowledge. If protoc is installed and this crate had trouble finding
it, you can set the PROTOC environment variable with the specific path to your
installed protoc binary.
Could not find
protocinstallation and this build crate cannot proceed withoutthis knowledge. If
protocis installed and this crate had trouble findingit, you can set the
PROTOCenvironment variable with the specific path to yourinstalled
protocbinary.