Upgrade `thin-vec` from 0.2.9 to 0.2.12.
Because 0.2.10 added supports for `ThinVec::splice`, and 0.2.12 is the latest release.
N
Nicholas Nethercote committed
06228d6e9331dd7742e069287bbb4802663b2742
Parent: 5243ea5
Because 0.2.10 added supports for `ThinVec::splice`, and 0.2.12 is the latest release.