This won't bolster faith in the mutual fund industry: For the first time in at least a decade, a money-market fund is liquidating. Denver-based Community Bankers U.S. Government Money-Market Fund folded after investments in derivatives of government-agency securities went sour, leaving the fund's value at less than $1 a share. The market for derivatives dried up last spring when interest rates began rising. Only 94 banks and bank holding companies were shareholders of Community Bankers, which had $82 million in assets. Investors are expected to receive 94 cents on the dollar.