In .cargo/config `runner` can be an array of string

[Guiguiprim]

Recently support for custom runner was added, but it fails to parse some valid config file.

We currently assume that the runner parameter is a simple string, but it can be an array of string.

see target.runner: Type: string or array of strings ([program path and args])

[sunshowers]

Whoops! Going to try and fix this now.

[Guiguiprim]

@sunshowers I just opened a PR for this !

[sunshowers]

Thank you so much. I've made this, and other issues, non-fatal errors in cargo nextest 0.9.7 (should be available once it builds, within 10 minutes or so). Let's work on a good solution in your PR.

[sunshowers]

Addressed in #75 and version 0.9.8. Thanks!