Missing module during docker installation

[matt-sd-watson]

With the following commands:

docker build -t spac .
docker run --rm -it spac bash

  warnings.warn("zstandard could not be imported. Running without .conda support.")
/opt/conda/lib/python3.12/site-packages/conda_package_handling/api.py:29: UserWarning: Install zstandard Python bindings for .conda support
  _warnings.warn("Install zstandard Python bindings for .conda support")
Error while loading conda entry point: conda-libmamba-solver (No module named 'zstandard.backend_c')
/opt/conda/lib/python3.12/site-packages/conda_package_streaming/package_streaming.py:25: UserWarning: zstandard could not be imported. Running without .conda support.
  warnings.warn("zstandard could not be imported. Running without .conda support.")
/opt/conda/lib/python3.12/site-packages/conda_package_handling/api.py:29: UserWarning: Install zstandard Python bindings for .conda support
  _warnings.warn("Install zstandard Python bindings for .conda support")
Error while loading conda entry point: conda-libmamba-solver (No module named 'zstandard.backend_c')