Fix race condition when two processes create the same link in /nix/store/.links
Fix race condition when two processes create the same link in /nix/store/.links

dtzWill/nix,dezgeg/nix,dezgeg/nix,bennofs/nix,rycee/nix,vizanto/nix,edolstra/nix,edolstra/nix,acowley/nix,acowley/nix,ysangkok/nix,dtzWill/nix,nbp/nix,shlevy/nix,rowhit/nix,zimbatm/nix,edolstra/nix,nbp/nix,puffnfresh/nix,peti/nix,NixOS/nix,tchajed/nix,rycee/nix,ehmry/nix,rycee/nix,aucampia/nix,ttuegel/nix,gridaphobe/nix,layus/nix,edolstra/nix,vcunat/nix,gebner/nix,zimbatm/nix,rowhit/nix,nbp/nix,pikajude/nix,offlinehacker/nix,jcumming/nix,rycee/nix,puffnfresh/nix,garbas/nix,shlevy/nix,ehmry/nix,wmertens/nix,nbp/nix,jcumming/nix,garbas/nix,NixOS/nix,zimbatm/nix,vcunat/nix,rycee/nix,rowhit/nix,puffnfresh/nix,wmertens/nix,layus/nix,acowley/nix,dtzWill/nix,vizanto/nix,gridaphobe/nix,ysangkok/nix,tchajed/nix,aucampia/nix,vizanto/nix,jcumming/nix,dtzWill/nix,gridaphobe/nix,peti/nix,offlinehacker/nix,bjornfor/nix,peti/nix,bennofs/nix,tchajed/nix,garbas/nix,gebner/nix,layus/nix,ttuegel/nix,dtzWill/nix,bennofs/nix,dezgeg/nix,edolstra/nix,layus/nix,garbas/nix,garbas/nix,aucampia/nix,dezgeg/nix,ttuegel/nix,bjornfor/nix,aucampia/nix,shlevy/nix,vcunat/nix,wmertens/nix,bjornfor/nix,peti/nix,wmertens/nix,ehmry/nix,peti/nix,ehmry/nix,gridaphobe/nix,shlevy/nix,bjornfor/nix,acowley/nix,zimbatm/nix,dezgeg/nix,ehmry/nix,pikajude/nix,NixOS/nix,offlinehacker/nix,shlevy/nix,NixOS/nix,bennofs/nix,joelmo/nix,joelmo/nix,gebner/nix,vizanto/nix,tchajed/nix,jcumming/nix,gebner/nix,NixOS/nix,rowhit/nix,puffnfresh/nix,offlinehacker/nix,vcunat/nix,layus/nix,joelmo/nix,ysangkok/nix,ttuegel/nix,pikajude/nix,joelmo/nix,ehmry/nix