[boost] Windows Develop Tests Failing

Subject: [boost] Windows Develop Tests Failing
From: Tom Kent (lists_at_[hidden])
Date: 2015-03-13 17:17:05

All my windows test runners for develop (teeks99-08*) have been failing for
the last few days (I just noticed).

They run for a long while, then end with the following at the end of their
results/bjam.log file:
common.mkdir
D:\local\teeks99-08\d\results\boost\bin.v2\libs\multiprecision\test\number_concept_check_cpp_dec_float_no_et.test\msvc-11.0\debug\address-model-64\architecture-x86\debug-symbols-off\link-static\runtime-link-static

        if not exist
"D:\local\teeks99-08\d\results\boost\bin.v2\libs\multiprecision\test\number_concept_check_cpp_dec_float_no_et.test\msvc-11.0\debug\address-model-64\architecture-x86\debug-symbols-off\link-static\runtime-link-static\\"
mkdir
"D:\local\teeks99-08\d\results\boost\bin.v2\libs\multiprecision\test\number_concept_check_cpp_dec_float_no_et.test\msvc-11.0\debug\address-model-64\architecture-x86\debug-symbols-off\link-static\runtime-link-static"

failed to write output file
'D:\local\teeks99-08\d\results\boost\bin.v2\libs\multiprecision\test\number_concept_check_cpp_dec_float_no_et.test\msvc-11.0\debug\address-model-64\architecture-x86\debug-symbols-off\link-static\runtime-link-static\number_concept_check_cpp_dec_float_no_et.obj.rsp'!

At first I thought I might be running out of disk space or something, but
that all seems fine. Has anyone seen this before?
Tom