diff --git a/tests/testsuite/workspaces.rs b/tests/testsuite/workspaces.rs
index 71d3146593e8..f830a09f0ea4 100644
--- a/tests/testsuite/workspaces.rs
+++ b/tests/testsuite/workspaces.rs
@@ -428,7 +428,7 @@ fn invalid_parent_pointer() {
 [ERROR] failed to read `[ROOT]/foo/foo/Cargo.toml`
 
 Caused by:
-  [..] (os error [..])
+  [NOT_FOUND]
 
 "#]])
         .run();
@@ -463,7 +463,7 @@ Caused by:
   failed to read `[ROOT]/foo/foo/Cargo.toml`
 
 Caused by:
-  [..] (os error [..])
+  [NOT_FOUND]
 
 "#]])
         .run();
@@ -1232,10 +1232,7 @@ fn rebuild_please() {
         .with_status(101)
         .with_stderr_data(str![[r#"
 ...
-assertion `left == right` failed
-  left: 1
- right: 0
-[NOTE] run with `RUST_BACKTRACE=1` environment variable to display a backtrace
+assertion[..]
 ...
 "#]])
         .run();
@@ -1978,7 +1975,7 @@ Caused by:
   failed to read `[ROOT]/foo/crates/bar/Cargo.toml`
 
 Caused by:
-  [..] (os error [..])
+  [NOT_FOUND]
 
 "#]])
         .run();
@@ -2446,7 +2443,7 @@ Caused by:
   failed to read `[ROOT]/foo/x/Cargo.toml`
 
 Caused by:
-  [..] (os error [..])
+  [NOT_FOUND]
 
 "#]])
         .run();
@@ -2497,7 +2494,7 @@ Caused by:
   failed to read `[ROOT]/foo/bar/baz/Cargo.toml`
 
 Caused by:
-  [..] (os error [..])
+  [NOT_FOUND]
 
 "#]])
         .run();