[rust-server] Update to error-chain 0.12#395

Merged

jmini merged 2 commits intoOpenAPITools:masterfrom bjgill:error-chain-0.12

Jun 25, 2018

+3-3

Commits on Jun 25, 2018

Update to error-chain 0.12
Benjamin Gill
committed
Revert "disable rust server test due to lint error (OpenAPITools#379 )"
Benjamin Gill
committed