Error during installation - qmake.exe -query is not parseable

Dialog pops up during installation of Qt Windows OpenSource 1.4.0 x86 online.exe:

"Error during installation process (qt.510.win64_msvc2012_64.essentials):
The output of
C:\Qt\5.1.0\mscv2012_64\bin\qmake.exe -query
is not parseable. Please file a bugreport with this dialog https://bugreports.qt-project.org.
output: "" "

I'm unsure what the proper project that this needs to file against - the installer for Qt Creator/Qt 5.1.0 is all wrapped together.

UPDATE: After further digging in to it, the hard drive on the target computer was filled to 100% capacity when the error was reached. I'm not as surprised now by the error message, but it took me a bit of diagnostic digging to find that was likely the case. Perhaps there can be a better handling of this situation (warning in advance from the installer that it will exceed hard drive capacity)?