Process killed when pickling dataset

[PGijsbers]

Several users seem to experience difficulties downloading dataset 41081. The process is killed with a sigkill signal when pickling the dataset to disk here.

We deduce this from the fact that the file is created, but not populated with the dataset (its file size is 0 bytes). It is reinforced by the fact that it occurs when the arff file is predownloaded. it does not occur if a 'healthy' dataset.pkl.py3 file is present.

The origin of the report is this issue, which also specifies two environments of users which produced the error consistently.