# Builder to construct `rust-bin` interface on an existing `pkgs`.
    # This would be immutable, non-intrusive and (hopefully) can benefit from
    # flake eval-cache.
    #
    # Note that this does not contain compatible attrs for mozilla-overlay.
    mkRustBin =
      { distRoot ? defaultDistRoot }:
      pkgs:
      lib.fix (rust-bin: import ./lib/rust-bin.nix {
        inherit lib pkgs;
        inherit (rust-bin) nightly;
        manifests = mkManifests distRoot;
      });

then you can do something like

rust-stable = (mkRustBin { } pkgs).stable.latest.default

then you can do something like

rust-stable = (mkRustBin { } pkgs).stable.latest.default;

i'm using crane to build dependencies and the finaly binary in two different steps.
after building the dependencies i'm exporting the closure using nix-store --export $(nix-store --query --requisites ./result).
since that doesn't include the cargo-deps-.drv-files and their outputs, when i run nix-store --import and building the final binary (on a different host for example) the final-binary-step builds them, creating double work.
when trying to export them as well, some of the drv-files aren't present:

export drvs=$(nix-store -q --requisites $(nix-store --query --deriver ./result/) | grep cargo-package)
export outputs$(nix-store -q --outputs $(nix-store -q --requisites $drvs)) # <- this errors since some of the drv-files aren't present in the nix store

how can i make sure to export all the drv-files and their outputs when exporting a nix store closure?

i'm using crane to build dependencies and the finaly binary in two different steps.
after building the dependencies i'm exporting the closure using nix-store --export $(nix-store --query --requisites ./result).
since that doesn't include the cargo-deps-.drv-files and their outputs, when i run nix-store --import and building the final binary (on a different host for example) the final-binary-step builds them, creating double work.
when trying to export them as well, some of the drv-files aren't present:

export drvs=$(nix-store -q --requisites $(nix-store --query --deriver ./result/) | grep cargo-package)
export outputs$(nix-store -q --outputs $(nix-store -q --requisites $drvs)) 
# the line above errors since some of the drv-files aren't present in the nix store,
# even though i'm running this after building the final closure successfully

how can i make sure to export all the drv-files and their outputs when exporting a nix store closure?