This is an unofficial snapshot of the ISO/IEC JTC1 SC22 WG21 Core Issues List revision 112e. See http://www.open-std.org/jtc1/sc22/wg21/ for the official list.
Whether or not structured bindings can be captured by a lambda and, if so, with what semantics, is unclear from the current wording.
Rationale (March, 2018):
Paper P0588R1, adopted at the October, 2017 meeting, answers the question by explicitly prohibiting such captures.