[boost] boost regression run.py fails with, fatal: Not a git repository

Subject: [boost] boost regression run.py fails with, fatal: Not a git repository
From: Blower, Melanie (melanie.blower_at_[hidden])
Date: 2016-06-29 11:25:35

I'm trying to run.py on develop to report results with the Intel compiler. The script I use first downloads run.py. The git is failing partway through with this message

Cloning into 'tools/quickbook'...
Submodule path 'tools/quickbook': checked out 'c7cb99ac029593024f3f31a1ab2503820f1300d5'
# Cleaning up "/localext3/mblower/sandbox/_try_dev/boost_root/bin" directory ...
# Cleaning up "/localext3/mblower/sandbox/_try_dev/boost_root/bin.v2" directory ...
# Cleaning up "/localext3/mblower/sandbox/_try_dev/results" directory ...
# Getting sources (2016-06-29T12:24:07Z)...
# Executing GIT command: /localext3/mblower/sandbox/_try_dev/boost_root> git submodule foreach "cd $toplevel && git submodule deinit $path"
Entering 'libs/accumulators'
fatal: Not a git repository (or any parent up to mount point /localext3)
Stopping at filesystem boundary (GIT_DISCOVERY_ACROSS_FILESYSTEM not set).
Stopping at 'libs/accumulators'; script returned non-zero status.
# git_source_checkout failed with message "GIT command "git submodule foreach "cd $toplevel && git submodule deinit $path"" failed with code 256"

I'm using a new server, the "master" results completed successfully last night.
There's plenty of disk space. 
Any ideas?