> docker buildx build .
...
 1 warning found (use --debug to expand):
 - Empty continuation line found in: RUN date &&     sleep 4 &&     date && echo $GREETING

...
 1 warning found:
 - Empty continuation line found in: RUN date &&     sleep 4 &&     date && echo $GREETING
Empty continuation lines will become errors in a future release
More info: https://github.com/moby/moby/pull/33719
Dockerfile:11
--------------------
   9 |         sleep 4 && \
  10 |     
  11 | >>>     date && echo $GREETING
  12 |     RUN true
  13 |      
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