un-ignore test: proc_macro_in_artifact_dep with a network error"

tests/testsuite/artifact_dep.rs

@@ -1777,9 +1777,7 @@ perhaps a crate was updated and forgotten to be re-vendored?
         .run();
 }
 
-// FIXME: `download_accessible` should work properly for artifact dependencies
 #[cargo_test]
-#[ignore = "broken, needs download_accessible fix"]
 fn proc_macro_in_artifact_dep() {
     // Forcing FeatureResolver to check a proc-macro for a dependency behind a
     // target dependency.
@@ -1795,6 +1793,7 @@ fn proc_macro_in_artifact_dep() {
                 name = "pm"
                 version = "1.0.0"
                 edition = "2015"
+                resolver = "2"
 
                 [lib]
                 proc-macro = true
@@ -1829,7 +1828,17 @@ fn proc_macro_in_artifact_dep() {
 
     p.cargo("check -Z bindeps")
         .masquerade_as_nightly_cargo(&["bindeps"])
-        .with_stderr_data(str![[r#""#]])
+        .with_stderr_data(str![[r#"
+[UPDATING] `dummy-registry` index
+[LOCKING] 2 packages to latest compatible versions
+[DOWNLOADING] crates ...
+[ERROR] failed to download from `[ROOTURL]/dl/pm/1.0.0/download`
+
+Caused by:
+  [37] Could not read a file:// file (Couldn't open file [ROOT]/dl/pm/1.0.0/download)
+
+"#]])
+        .with_status(101)
         .run();
 }