fix CI for good

Author: Byron

Diff for: git-index/tests/index/file/write.rs

@@ -103,9 +103,8 @@ fn state_comparisons_with_various_extension_configurations() {
 }
 
 #[test]
-#[ignore] // TODO: figure out why it fails on CI
 fn extended_flags_automatically_upgrade_the_version_to_avoid_data_loss() -> crate::Result {
-    let mut expected = git_index::File::at(fixture_index_path("V2"), Default::default())?;
+    let mut expected = git_index::File::at(fixture_index_path("v2"), Default::default())?;
     assert_eq!(expected.version(), Version::V2);
     expected.entries_mut()[0].flags.insert(entry::Flags::EXTENDED);
 

Diff for: tests/tools/src/lib.rs

@@ -202,7 +202,12 @@ fn scripted_fixture_repo_read_only_with_args_inner(
         .or_insert_with(|| {
             let crc_value = crc::Crc::<u32>::new(&crc::CRC_32_CKSUM);
             let mut crc_digest = crc_value.digest();
-            crc_digest.update(&std::fs::read(&script_path).expect("file can be read entirely"));
+            crc_digest.update(&std::fs::read(&script_path).unwrap_or_else(|err| {
+                panic!(
+                    "file {script_path:?} in CWD {:?} could not be read: {err}",
+                    std::env::current_dir().expect("valid cwd"),
+                )
+            }));
             for arg in args.iter() {
                 crc_digest.update(arg.as_bytes());
             }