intermittent type inference of Any in CI

[fredrikekre]

Seen this a couple of times on the circle-ci and the bsd worker, opening an issue to track it. Stacktrace:

Error During Test
  Got an exception of type LoadError outside of a @test
  LoadError: return type RowVector{Float64,Array{Float64,1}} does not match inferred return type Any
  Stacktrace:
   [1] include_relative(::Module, ::String) at ./loading.jl:464
   [2] eval(::Module, ::Any) at ./boot.jl:291
   [3] ==(::Array{Any,1}, ::Array{String,1}) at ./abstractarray.jl:0
   [4] warn at ./util.jl:583 [inlined]
   [5] choosetests(::Array{String,1}) at /usr/home/julia/worker/11rel-amd64/build/test/choosetests.jl:156
   [6] vect at ./array.jl:96 [inlined]
   [7] choosetests(::Array{String,1}) at /usr/home/julia/worker/11rel-amd64/build/test/choosetests.jl:151
   [8] choosetests(::Array{String,1}) at /usr/home/julia/worker/11rel-amd64/build/test/choosetests.jl:154
   [9] choosetests(::Array{String,1}) at /usr/home/julia/worker/11rel-amd64/build/test/choosetests.jl:52
  while loading /usr/home/julia/worker/11rel-amd64/build/test/statistics.jl, in expression starting on line 177

Some logs: https://gist.github.com/fredrikekre/9c80c0504e12aa7acb0fd4443b3f3fec

[andreasnoack]

Has anybody seen this locally?

[fredrikekre]

No, but I have tried quite a lot on both mac and linux (both 64-bit). It is quite common on the workers now though, both on 64 and 32 bit IIRC.

[andreasnoack]

It is quite common on the workers now though, both on 64 and 32 bit IIRC

Exactly. It is all over the place now but I can't reproduce locally. I've tried a couple of systems. Test failures that only happen on CI are pretty annoying.