Question: Why maple can not solve this integral?

I'm trying to solve this integral, but maple does not show any result.

f := GAMMA(phi)*y^(mu*phi-1)*(1-y)^((1-mu)*phi-1)/(GAMMA(mu*phi)*GAMMA((1-mu)*phi))
int(log(1-y)*f, y = 0 .. 1) assuming phi >0 and 0<mu<1

What is the problem? Is there any way to solve this integral?

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