Downloading: s3://natera-rnd-pltf-dev-nextflow-scratch-01/work/5b/e575ecb99dd47aa10ec7bded6dadde/Sig_18_Blood.vcf.gz
  Downloading: s3://natera-rnd-pltf-dev-nextflow-scratch-01/work/a7/b5dfdb6a78e1c5836d13ed9976f612/.command.sh
  Downloading: s3://natera-rnd-pltf-dev-nextflow-scratch-01/work/a7/b5dfdb6a78e1c5836d13ed9976f612/.command.run
==> STAGING COMPLETE (3 inputs)

[W::vcf_parse] Contig 'chr1' is not defined in the header. (Quick workaround: index the file with tabix.)
[W::vcf_parse] Contig 'chr7' is not defined in the header. (Quick workaround: index the file with tabix.)
[W::vcf_parse] Contig 'chr9' is not defined in the header. (Quick workaround: index the file with tabix.)
[W::vcf_parse] Contig 'chrX' is not defined in the header. (Quick workaround: index the file with tabix.)