Stalled builds

[ceedubs]

A lot of builds are failing because they stall.

Example (from build 104886962):

[info] - Functor[OptionT[ListWrapper, ?]].functor.covariant composition (16 milliseconds)
[info] - Functor[OptionT[ListWrapper, ?]].functor.covariant identity (35 milliseconds)
[info] - Functor[OptionT[ListWrapper, ?]].functor.invariant composition (30 milliseconds)
[info] - Functor[OptionT[ListWrapper, ?]].functor.invariant identity (13 milliseconds)
No output has been received in the last 10 minutes, this potentially indicates a stalled build or something wrong with the build itself.
The build has been terminated

[ceedubs]

Note: this is probably due to Scalacheck generators.

[fthomas]

Duplicate of #810?

[ceedubs]

@fthomas oh thanks good catch.