PR #126: Mutation testing

Agent Instructions

Click a suite to see its builds. Example suite for dde5a80d :

https://staging.nix-ci.com/gh:NorfairKing:sydtest/refs%2Fpull%2F126%2Fmerge/dde5a80d7393f3b8e5313c7ef8890e87a05464e5

For more instructions, fetch https://staging.nix-ci.com/instructions .