Nothing But Thieves are among the leading names on the line-up of the virtual Headstock Weekender festival, which is being held to mark World Mental Health Day next month.Set to take place from October 10-11, Headstock Weekender will be broadcast for free on the United We Stream GM platform and will feature live music, exclusive talks and immersive wellbeing experiences.This two-day virtual festival replaces the initial week-long event that had been planned to take place across Manchester back