Monte Carlo Noise simulation using MDL

Is there a way to run MC noise simulation using MDL?  I tried simple test code below, but it does not work:

mcnoise.mdl
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alias measurement noise_test {
  run noise(freq=1e3,oprobe=v)
  export real total_noise=noise:out;
}
run montecarlo(numruns=100,variations='process,scalarfile="scalars") {
  run noise_test();
}
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I used the above MDL file with the following Spectre netlist like this:
  > spectre =mdl mcnoise.mdl mcnoise.scs

mcnoise.scs
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// Single resistor thermal noise, nominal value 12.8 pV/rtHz
op options rawfmt=psfascii temp=25
r (1 0) resistor r=100*(1+max(-0.99,dr))
v (1 0) vsource dc=1 mag=1
parameters dr=0
statistics {
  process {
    vary dr dist=gauss std=0.01
  }
}
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