Try to clarify cargo metadata's relationship with the workspace.

src/bin/cargo/commands/metadata.rs

@@ -21,7 +21,7 @@ pub fn cli() -> App {
         )
         .arg(opt(
             "no-deps",
-            "Output information only about the root package \
+            "Output information only about the workspace members \
              and don't fetch dependencies",
         ))
         .arg_manifest_path()

src/doc/man/cargo-metadata.adoc

@@ -13,8 +13,8 @@ cargo-metadata - Machine-readable metadata about the current package
 
 == DESCRIPTION
 
-Output the resolved dependencies of a package, the concrete used versions
-including overrides, in JSON to stdout.
+Output JSON to stdout containing information about the workspace members and
+resolved dependencies of the current package.
 
 It is recommended to include the `--format-version` flag to future-proof
 your code to ensure the output is in the format you are expecting.
@@ -199,8 +199,9 @@ The output has the following format:
     "workspace_members": [
         "my-package 0.1.0 (path+file:///path/to/my-package)",
     ],
-    // The resolved dependency graph, with the concrete versions and features
-    // selected. The set depends on the enabled features.
+    // The resolved dependency graph for the entire workspace. The enabled
+    // features are based on the enabled features for the "current" package.
+    // Inactivated optional dependencies are not listed.
     //
     // This is null if --no-deps is specified.
     //

src/doc/man/generated/cargo-metadata.html

@@ -14,8 +14,8 @@ <h2 id="cargo_metadata_synopsis">SYNOPSIS</h2>
 <h2 id="cargo_metadata_description">DESCRIPTION</h2>
 <div class="sectionbody">
 <div class="paragraph">
-<p>Output the resolved dependencies of a package, the concrete used versions
-including overrides, in JSON to stdout.</p>
+<p>Output JSON to stdout containing information about the workspace members and
+resolved dependencies of the current package.</p>
 </div>
 <div class="paragraph">
 <p>It is recommended to include the <code>--format-version</code> flag to future-proof
@@ -206,8 +206,9 @@ <h2 id="cargo_metadata_output_format">OUTPUT FORMAT</h2>
     "workspace_members": [
         "my-package 0.1.0 (path+file:///path/to/my-package)",
     ],
-    // The resolved dependency graph, with the concrete versions and features
-    // selected. The set depends on the enabled features.
+    // The resolved dependency graph for the entire workspace. The enabled
+    // features are based on the enabled features for the "current" package.
+    // Inactivated optional dependencies are not listed.
     //
     // This is null if --no-deps is specified.
     //

src/etc/man/cargo-metadata.1

@@ -2,12 +2,12 @@
 .\"     Title: cargo-metadata
 .\"    Author: [see the "AUTHOR(S)" section]
 .\" Generator: Asciidoctor 2.0.10
-.\"      Date: 2019-12-05
+.\"      Date: 2020-02-24
 .\"    Manual: \ \&
 .\"    Source: \ \&
 .\"  Language: English
 .\"
-.TH "CARGO\-METADATA" "1" "2019-12-05" "\ \&" "\ \&"
+.TH "CARGO\-METADATA" "1" "2020-02-24" "\ \&" "\ \&"
 .ie \n(.g .ds Aq \(aq
 .el       .ds Aq '
 .ss \n[.ss] 0
@@ -34,8 +34,8 @@ cargo\-metadata \- Machine\-readable metadata about the current package
 \fBcargo metadata [\fIOPTIONS\fP]\fP
 .SH "DESCRIPTION"
 .sp
-Output the resolved dependencies of a package, the concrete used versions
-including overrides, in JSON to stdout.
+Output JSON to stdout containing information about the workspace members and
+resolved dependencies of the current package.
 .sp
 It is recommended to include the \fB\-\-format\-version\fP flag to future\-proof
 your code to ensure the output is in the format you are expecting.
@@ -220,8 +220,9 @@ The output has the following format:
     "workspace_members": [
         "my\-package 0.1.0 (path+file:///path/to/my\-package)",
     ],
-    // The resolved dependency graph, with the concrete versions and features
-    // selected. The set depends on the enabled features.
+    // The resolved dependency graph for the entire workspace. The enabled
+    // features are based on the enabled features for the "current" package.
+    // Inactivated optional dependencies are not listed.
     //
     // This is null if \-\-no\-deps is specified.
     //