It's happening with a build configuration I added recently. All other build configurations are still working fine, only this one fails.
OS: Windows 7 SP1 32 bits with all the latest updates
Team City Version: Professional 6.5.5 (build 18087)
VCS: Subversion, working copy format 1.6, using the latest Tortoise SVN 1.6.x
Attached build agent log; the error started happening today around 11:54
Any hints on troubleshooting this?