Are you are getting the noise even with nothing plugged into the input? Do you have a different power supply you could try on this pedal? Some pedals are more sensitive to noise from a supply than others.
Or try a battery. Single-ended circuits like this one have pretty poor power supply rejection. There really should have been a resistor in series with D100. Does the cricket noise change if you turn the DRIVE control? If you have an audio probe, try probing IC1-7. There's a 100uF cap (C17) on the output of an opamp, which IMHO is very bad. It should have been on the input side of IC1.2. If you get noise on IC1-7, try removing C17.