I'am also affected by this bug.
- Bug#772641: apt: "E: Setting TIOCSCTTY for sla... Apollon Oikonomopoulos
- Bug#772641: apt: "E: Setting TIOCSCTTY fo... David Kalnischkies
- Bug#772641: apt: "E: Setting TIOCSCTT... Apollon Oikonomopoulos
- Bug#772641: apt: "E: Setting TIOCSCTT... Faidon Liambotis
- Bug#772641: apt: "E: Setting TIOCSCTTY fo... Samuel Wolf
