nixos/logrotate: use packages from buildPackages in configuration checkPhase, fixing cross compilation

nixos/modules/services/logging/logrotate.nix

@@ -162,8 +162,8 @@ let
       # file exist, but we only have sandboxed users here so brown these
       # out. according to man page that means su, create and createolddir.
       # files required to exist also won't be present, so missingok is forced.
-      user=$(${pkgs.coreutils}/bin/id -un)
-      group=$(${pkgs.coreutils}/bin/id -gn)
+      user=$(${pkgs.buildPackages.coreutils}/bin/id -un)
+      group=$(${pkgs.buildPackages.coreutils}/bin/id -gn)
       sed -e "s/\bsu\s.*/su $user $group/" \
           -e "s/\b\(create\s\+[0-9]*\s*\|createolddir\s\+[0-9]*\s\+\).*/\1$user $group/" \
           -e "1imissingok" -e "s/\bnomissingok\b//" \
@@ -173,7 +173,7 @@ let
       # 'error:' at common log level, so we can use grep, taking care
       # to keep error codes
       set -o pipefail
-      if ! ${pkgs.logrotate}/sbin/logrotate --debug /tmp/logrotate.conf 2>&1 \
+      if ! ${pkgs.buildPackages.logrotate}/sbin/logrotate --debug /tmp/logrotate.conf 2>&1 \
           | ( ! grep "error:" ) > /tmp/logrotate-error; then
               echo "Logrotate configuration check failed."
               echo "The failing configuration (after adjustments to pass tests in sandbox) was:"