incorrectly warning uses of warnings

[vtjnash]

The output text says "had warnings", but this text is not a warning, just informational advice, and it is harmful to users for Pkg to claim this is a warning:

julia> using Test1
Precompiling Test1
  Progress [>                                        ]  0/1
  ◑ Test1 Waiting for background task / IO / timer. Interrupt to inspect
 Interrupted: Exiting precompilation...

  1 dependency had warnings during precompilation:
┌ Test1 [ddca8587-cad1-46e2-86b4-b726afea1d60]
│  [pid 7156] waiting for IO to finish:
│   TYPE[FD/PID]       @UV_HANDLE_T->DATA
│   timer              @00000228c312eca0->00000228bf815db0

observed at JuliaPy/PyPlot.jl#572

[IanButterworth]

I proposed “warning” to dissuade packages from using output during precompilation for anything other than warnings. It seems like something we don’t want to promote?

[IanButterworth]

@vtjnash let me know if you disagree, otherwise perhaps we can close this?

[vtjnash]

I think Pkg should avoid editorializing, although I agree it is not generally advisable, some messages just won't be warnings

[IanButterworth]

Ok so warnings -> output ?

[vtjnash]

Yes, or something like "wrote text"