[Windows 7] qdb.exe crashes

Steps to reproduce the issue:
1. Run `qdb.exe server`.

Outcome:
It crashed and with Unhandled exception at 0x00C85BDF in qdb.exe: 0xC0000005: Access violation reading location 0x00000005.

Alternate way to reproduce the issue:
1. Launch Qt Creator
2. Wait for 30 seconds

Outcome:
A dialog is shown that qdb.exe has crashed