V2 Vd1 GND 1.8
V3 Vd2 GND 0

D1 GND net3 sky130_fd_pr__diode_pw2nd_05v5 area=1e16 dtemp=20
D2 GND net2 sky130_fd_pr__diode_pw2nd_05v5 area=1e16


     device m.xm1.msky130_fd_pr__    m.xm2.msky130_fd_pr__
      model xm1:sky130_fd_pr__nfe    xm2:sky130_fd_pr__nfe

        vth              0.578187              0.520693
         id           1.56841e-10           1.28027e-11
        ibd          -4.18844e-20          -8.71086e-13
        ibs          -5.89794e-24           6.57845e-24

     device                    d2                    d1
      model sky130_fd_pr__diode_p sky130_fd_pr__diode_p
    thermal                     0                     0
         vd            -0.0388361                  -0.9
         id          -1.36729e-11          -1.56832e-10

OP Solution 

id1 = 1.568408e-10
id2 = 1.280267e-11
i(v6) = -1.70527e-10