HTTP.jl no longer precompiling on Julia v1.6 (i.e. master)

[fredrikekre]

@ScottPJones

On v1.6 (a recent build out of master)?

@fredrikekre

$ git show --pretty=format:"%H" --no-patch
5f55b977e439ab7b0d09dd826732ff5ea3f1098f

But looks like it is a macOS problem as suggested by Mosè.