anchor.diff:  FROM crystallang/crystal:0.33.0 AS builder
   COPY --from=duktape /libduktape.a /usr/lib
   COPY --from=rocksdb /librocksdb.a /usr/lib
  -COPY --from=webui /webui /app/vendor/rethinkdb-webui
  +COPY --from=rocksdb /usr/local/include/rocksdb /usr/include/rocksdb
   RUN ls -lhs /usr/lib/librocksdb.a
   WORKDIR /app
   COPY shard.yml shard.lock ./
  
positive.code: 
  FROM crystallang/crystal:0.33.0
  COPY --from=builder /app/main /rethinkdb-lite
  CMD /rethinkdb-lite
  
negative.code: RUN curl -L https://github.com/facebook/rocksdb/archive/v6.6.4.tar.gz | tar xz
  WORKDIR /rocksdb-6.6.4
  RUN make static_lib -j6
  RUN make install-headers
  RUN mv librocksdb.a /
  
  FROM node:12 AS webui
  