Fix travis (#1665)
Fix travis (#1665)

According to [this tweet](https://twitter.com/colinwhi/status/1204102384458194944) from @colinrtwhite, Travis is failing due to a bug in the most recent version of the emulator. Pinning the emulator to an older version works around it. This commit steals the fix from https://github.com/coil-kt/coil/pull/195 .
square/leakcanary,square/leakcanary,square/leakcanary