Pod command abruptly stops CircleCI job and "cancels" the build

So I run a pod search command in my fastlane that gets run on CircleCI that has always worked without issues in the past. Recently, it started abruptly exiting the CircleCI job without any helpful diagnostic messages (even after using the --verbose option). The only messages I see from CircleCI are “Error executing build steps” and “Build was canceled”. It doesn’t seem like it’s specific to pod search either. Doing pod repo update produces the same result.