message: Add Zsh completion for target triples
  Target triples are used for specifying targets for e.g. `cargo build
  target thumbv7em-none-eabihf` where `thumbv7em-none-eabihf` is the
  target triplet.
  For more information on target triples, see
  <https://doc.rust-lang.org/cargo/appendix/glossary.html#target>.
diff: @@ -56,7 +56,7 @@ _cargo() {
  )
  msgfmt='--message-format=[specify error format]:error format [human]:(human json short)'
  - triple='--target=[specify target triple]:target triple'
  + triple='--target=[specify target triple]:target triple:_cargo_target_triple'
  target='--target-dir=[specify directory for all generated artifacts]:directory:_directories'
  manifest='--manifest-path=[specify path to manifest]:path:_directories'
  registry='--registry=[specify registry to use]:registry'
  @@ -359,6 +359,11 @@ _cargo_cmds() {
  _describe -t commands 'command' commands
  }
  +_cargo_target_triple() {
  + local -a targets
  + targets=( ${(f)"$(rustc --print target-list)"} )
  + _describe 'target triple' targets
  +}
  #FIXME: Disabled until fixed
  #gets package names from the manifest file
  