[OnePlus 3 Guides, News, & Discussion] matssa:
Yay! Finally managed to get the repo sync OK :) You should have the following at the end:

Checking out files: 100% (9727/9727), done.ut files: 12% (1226/9727)
Checking out files: 100% (5699/5699), done.
Checking out files: 100% (4313/4313), done.
Checking out files: 100% (11736/11736), done.t files: 3% (450/11736)
Checking out files: 100% (479/479), done.g out files: 15% (73/479)
Checking out files: 100% (2438/2438), done.out files: 5% (123/2438)
Checking out files: 100% (1200/1200), done.out files: 15% (191/1200)
Checking out files: 100% (791/791), done.g out files: 36% (290/791)
Checking out files: 100% (440/440), done.g out files: 21% (96/440)
Checking out files: 100% (2101/2101), done.
Checking out files: 100% (10613/10613), done.t files: 4% (509/10613)
Checking out files: 100% (2254/2254), done.out files: 39% (888/2254)
Checking out files: 100% (2067/2067), done.
Checking out files: 100% (581/581), done.g out files: 46% (272/581)
Checking out files: 100% (2328/2328), done. out files: 18% (433/2328)
Checking out files: 100% (7397/7397), done. out files: 5% (430/7397)
Checking out files: 100% (4182/4182), done. out files: 27% (1166/4182)
Checking out files: 100% (17133/17133), done.ut files: 5% (928/17133)
Checking out files: 100% (4951/4951), done. out files: 44% (2197/4951)
Checking out files: 100% (179/179), done.ng out files: 5% (10/179)
Checking out files: 100% (1195/1195), done. out files: 47% (569/1195)
Checking out files: 100% (723/723), done.ng out files: 3% (27/723)
Checking out files: 100% (3505/3505), done. out files: 33% (1187/3505)
Checking out files: 100% (3051/3051), done. out files: 37% (1132/3051)
Checking out files: 100% (889/889), done.ng out files: 37% (335/889)
Checking out files: 100% (4367/4367), done. out files: 6% (280/4367)
Checking out files: 100% (4983/4983), done. out files: 1% (61/4983)
Checking out files: 100% (1054/1054), done.
Checking out files: 100% (2565/2565), done.
Checking out files: 100% (1483/1483), done.
Checking out files: 100% (831/831), done.ng out files: 36% (302/831)
Checking out files: 100% (2804/2804), done. out files: 23% (662/2804)
Checking out files: 100% (28044/28044), done.ut files: 0% (8/28044)
Checking out files: 100% (51623/51623), done.ut files: 2% (1508/51623)
Checking out files: 100% (175/175), done.ng out files: 41% (73/175)
Checking out files: 100% (3416/3416), done. out files: 0% (34/3416)
Checking out files: 100% (64/64), done.king out files: 14% (9/64)
Checking out files: 100% (68/68), done.
Checking out files: 100% (96/96), done.
Checking out files: 100% (742/742), done.ng out files: 0% (5/742)
Checking out files: 100% (269/269), done.ng out files: 11% (31/269)
Checking out files: 100% (128/128), done.
Checking out files: 100% (3202/3202), done. out files: 0% (27/3202)
Checking out files: 100% (3539/3539), done.
Checking out files: 100% (4198/4198), done.
Checking out files: 100% (270/270), done.
Checking out files: 100% (10253/10253), done.
Checking out files: 100% (2050/2050), done. out files: 26% (540/2050)
Checking out files: 100% (956/956), done.
Checking out files: 100% (72214/72214), done.
Checking out files: 100% (4865/4865), done.
Checking out files: 100% (3552/3552), done.
Checking out files: 100% (52/52), done.king out files: 23% (12/52)
Checking out files: 100% (1180/1180), done.
Checking out files: 100% (3826/3826), done.
Checking out files: 100% (224/224), done.ng out files: 43% (97/224)
Checking out files: 100% (1589/1589), done. out files: 4% (73/1589)
Syncing work tree: 100% (533/533), done.