[1 of 3] Compiling Check08_A        ( Check08_A.hs, Check08_A.o )
[2 of 3] Compiling Check08_B        ( Check08_B.hs, Check08_B.o )
[3 of 3] Compiling Check08          ( Check08.hs, Check08.o )

<no location info>: error:
    The package (base-4.13.0.0) is required to be trusted but it isn't!