<!-- If you think you have found a security vulnerability a contract that has already been deployed, please report the vulnerability to security@curve.fi - you may be eligible for our bug bounty program. PLEASE DO NOT LOG AN ISSUE MENTIONING THE VULNERABILITY. --> ### Environment information * `curve-contract` branch/commit: master/latest * `brownie` Version: x.x.x * `ganache-cli` Version: x.x.x * OS: osx/linux/win ### What was wrong? Please include information like: * what you are trying to accomplish * which command(s) you ran * the code that caused the failure (see [this link](https://help.github.com/articles/basic-writing-and-formatting-syntax/) for help with formatting code) * full output of the error you received ### How can it be fixed? Fill this in if you know how the bug could be fixed.