updated scikit-learn to 0.20.2

2 jobs for 69-upgrade-to-pytorch-1-0-1 in 10 minutes and 32 seconds (queued for 5 seconds)
Name Stage Failure
failed
build_linux Build
    build:
File "/scratch/builds/bob/bob.conda/miniconda/lib/python3.7/site-packages/conda_build/jinja_context.py", line 484, in resolved_packages
package_names, _, _ = get_env_dependencies(m, env, m.config.variant)
File "/scratch/builds/bob/bob.conda/miniconda/lib/python3.7/site-packages/conda_build/render.py", line 136, in get_env_dependencies
channel_urls=tuple(m.config.channel_urls))
File "/scratch/builds/bob/bob.conda/miniconda/lib/python3.7/site-packages/conda_build/environ.py", line 751, in get_install_actions
raise DependencyNeedsBuildingError(exc, subdir=subdir)
conda_build.exceptions.DependencyNeedsBuildingError: Unsatisfiable dependencies for platform linux-64: {'menpo=0.8.1', 'caffe=1.0', 'pytorch=1.0.1'}
ERROR: Job failed: exit code 1