Updated legacy checkpoint wrapper to used pickle+gzip format

4 jobs for legacy in 17 minutes and 25 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
passed #241901
docker
build_linux_37

00:14:37

84.0%
passed #241902
docker
build_linux_38

00:13:31

84.0%
passed #241899
intel macos
build_macos_intel_37

00:17:25

84.0%
passed #241900
intel macos
build_macos_intel_38

00:15:33

84.0%