error:
       … while calling the 'derivationStrict' builtin
         at «nix-internal»/derivation-internal.nix:37:12:
           36|
           37|   strict = derivationStrict drvAttrs;
             |            ^
           38|

       … while evaluating derivation 'all-packages'
         whose name attribute is located at «https://releases.nixos.org/nixpkgs/nixpkgs-26.11pre1086972.7dd199b0e299/nixexprs.tar.xz?narHash=sha256-7WQwlykef1x8n7aoyw4XP6882i2NRs5F6dVCXZ1NI1g%3D»/pkgs/stdenv/generic/make-derivation.nix:651:11

       … while evaluating attribute 'buildCommand' of derivation 'all-packages'
         at «https://releases.nixos.org/nixpkgs/nixpkgs-26.11pre1086972.7dd199b0e299/nixexprs.tar.xz?narHash=sha256-7WQwlykef1x8n7aoyw4XP6882i2NRs5F6dVCXZ1NI1g%3D»/pkgs/build-support/trivial-builders/default.nix:88:9:
           87|         inherit name;
           88|         buildCommand = lib.toFunction buildCommand finalAttrs;
             |         ^
           89|         passAsFile = defaultPassAsFile ++ (userAttrs.passAsFile or [ ]);

       (stack trace truncated; use '--show-trace' to show the full, detailed trace)

       error: attribute 'apsl20' missing
       at «git+file:///var/lib/nixbot/worktrees/5-b0dad7f414c5-28?ref=HEAD&rev=f00d18505b5f3e98e463f85bbb799155015de2d3»/clanServices/zerotier/pkgs/zerotierone/default.nix:20:17:
           19|     meta = old.meta // {
           20|       license = lib.licenses.apsl20;
             |                 ^
           21|     };
       Did you mean one of asl20, afl20, epl20, mpl20 or zpl20?