Coverage option causes function to have allocations

[rekabrnalla]

I do a allocation check against one of my functions by defining a function

'ff()=@allocated myfunction(something, here)
@test ff()==0'

They I run 'Pkg.test(coverage=true)'

Things work fine, but when I run it with

'TestReports.test(Pkgname;coverage=true)'
Allocations are reported and the test fails.

Is there a work around? Is this a bug?

[oxinabox]

Does this occur without using TestReports, like if you did Pkg.Test(Pkgname; coverage=true) ? (I think that works)
If you you will need to report it on the JuliaLang/julia repo.

If it only occurs with TestReports, it might well be something we can fix.
but in general running code with coverage turns on is known to increase allocations.