Doesn't build, just fails, right out of the gate 2.23.0 about acala HOT 4 CLOSED

# git submodule update --init --recursive
...
# cargo build --release --features with-acala-runtime
...
   Compiling tokio-stream v0.1.14
   Compiling librocksdb-sys v0.11.0+8.1.1
   Compiling flate2 v1.0.28
error: failed to run custom build command for `sc-network-bitswap v0.30.0`

Caused by:
  process didn't exit successfully: `/root/Acala/target/release/build/sc-network-bitswap-5137721f5e207099/build-script-build` (exit status: 101)
  --- stderr
  thread 'main' panicked at /root/.cargo/registry/src/index.crates.io-6f17d22bba15001f/prost-build-0.11.9/src/lib.rs:1457:10:
  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.If you're on debian, try `apt-get install protobuf-compiler` or download it from https://github.com/protocolbuffers/protobuf/releases
      ```

apt install -y protobuf-compiler libprotobuf-dev

apt install -y protobuf-compiler libprotobuf-dev
git clone https://github.com/AcalaNetwork/Acala.git
cd Acala
git checkout 2.23.0
git submodule update --init --recursive
cargo build --release --features with-acala-runtime