Another way to fix

Author: In-line

Cargo.toml

@@ -67,7 +67,6 @@ clap = "2.31.2"
 unicode-width = "0.1.5"
 openssl = { version = '0.10.11', optional = true }
 im-rc = "15.0.0"
-itertools = "0.10.0"
 
 # A noop dependency that changes in the Rust repository, it's a bit of a hack.
 # See the `src/tools/rustc-workspace-hack/README.md` file in `rust-lang/rust`

src/cargo/core/workspace.rs

@@ -7,7 +7,6 @@ use std::slice;
 
 use anyhow::{bail, Context as _};
 use glob::glob;
-use itertools::Itertools;
 use log::debug;
 use url::Url;
 
@@ -1220,9 +1219,11 @@ impl<'cfg> Workspace<'cfg> {
                     dep_prefix: _,
                     weak: _,
                 } => {
-                    // Check if `dep_name` is member of the workspace or package.
+                    // Check if `dep_name` is member of the workspace, but isn't associated with current package.
                     // Weak can be ignored for this moment.
-                    let is_member = self.members().any(|member| member.name() == *dep_name);
+                    let is_member = self.members().any(|member| {
+                        self.current_opt() != Some(member) && member.name() == *dep_name
+                    });
                     if is_member && specs.iter().any(|spec| spec.name() == *dep_name) {
                         member_specific_features
                             .entry(*dep_name)
@@ -1300,40 +1301,8 @@ impl<'cfg> Workspace<'cfg> {
             .collect();
 
         // If any member specific features were not removed while iterating over members
-        if !member_specific_features.is_empty() {
-            let unknown: Vec<_> = member_specific_features
-                .values()
-                .map(|set| set.iter())
-                .flatten()
-                .sorted_by_key(|feature| feature.to_string())
-                .collect();
-
-            if self.is_virtual() {
-                bail!(
-                    "None of the selected packages contains these features: {}",
-                    unknown.iter().join(", "),
-                );
-            } else {
-                bail!(
-                    "None of the selected packages contains these features: {}, did you mean: {}?",
-                    unknown.iter().join(", "),
-                    unknown
-                        .iter()
-                        .map(|feature| match feature {
-                            // Remove package prefix from feature
-                            FeatureValue::DepFeature {
-                                dep_name: _,
-                                dep_feature,
-                                dep_prefix: false,
-                                weak: _,
-                            } => FeatureValue::new(*dep_feature),
-                            // Member specific features by definition contain only `FeatureValue::DepFeature`
-                            _ => unreachable!(),
-                        })
-                        .join(", ")
-                );
-            }
-        }
+        // some features will be ignored.
+        assert!(member_specific_features.is_empty());
 
         Ok(result)
     }

tests/testsuite/package_features.rs

@@ -313,7 +313,7 @@ fn feature_default_resolver() {
     p.cargo("run --features a/test")
         .masquerade_as_nightly_cargo()
         .with_status(101)
-        .with_stderr("[ERROR] None of the selected packages contains these features: a/test, did you mean: test?")
+        .with_stderr("[ERROR] package `a[..]` does not have a dependency named `a`")
         .run();
 }