diff --git a/pkgs/build-support/rust/build-rust-crate/test/default.nix b/pkgs/build-support/rust/build-rust-crate/test/default.nix
index f6cd54c4ee3e..65c8880b134d 100644
--- a/pkgs/build-support/rust/build-rust-crate/test/default.nix
+++ b/pkgs/build-support/rust/build-rust-crate/test/default.nix
@@ -146,12 +146,18 @@ let
         };
       in
       runCommand "assert-outputs-${name}" {
-      } ''
+      } (''
       local actualFiles=$(mktemp)
 
       cd "${crateOutput}"
-      find . -type f | sort >$actualFiles
-      diff -q ${expectedFilesFile} $actualFiles >/dev/null || {
+      find . -type f \
+        | sort \
+      ''
+      # sed out the hash because it differs per platform
+      + ''
+        | sed -E -e 's/-[0-9a-fA-F]{10}\.rlib/-HASH.rlib/g' \
+        > "$actualFiles"
+      diff -q ${expectedFilesFile} "$actualFiles" > /dev/null || {
         echo -e "\033[0;1;31mERROR: Difference in expected output files in ${crateOutput} \033[0m" >&2
         echo === Got:
         sed -e 's/^/  /' $actualFiles
@@ -164,7 +170,7 @@ let
         exit 1
       }
       touch $out
-      ''
+      '')
       ;
 
   in rec {
@@ -594,7 +600,7 @@ let
       };
       expectedFiles = [
         "./nix-support/propagated-build-inputs"
-        "./lib/libtest_lib-042a1fdbef.rlib"
+        "./lib/libtest_lib-HASH.rlib"
         "./lib/link"
       ];
     };
@@ -611,7 +617,7 @@ let
       };
       expectedFiles = [
         "./nix-support/propagated-build-inputs"
-        "./lib/libtest_lib-042a1fdbef.rlib"
+        "./lib/libtest_lib-HASH.rlib"
         "./lib/link"
       ];
     };