Remove build metadata within the toml snippet

app/components/crate-sidebar.js

@@ -21,7 +21,8 @@ export default class CrateSidebar extends Component {
   }
 
   get tomlSnippet() {
-    return `${this.args.crate.name} = "${this.args.version.num}"`;
+    let version = this.args.version.num.split('+')[0];
+    return `${this.args.crate.name} = "${version}"`;
   }
 
   get playgroundLink() {

tests/components/crate-sidebar/toml-snippet-test.js

@@ -0,0 +1,37 @@
+import { render } from '@ember/test-helpers';
+import { module, test } from 'qunit';
+
+import { hbs } from 'ember-cli-htmlbars';
+
+import { setupRenderingTest } from 'crates-io/tests/helpers';
+
+import setupMirage from '../../helpers/setup-mirage';
+
+module('Component | CrateSidebar | toml snippet', function (hooks) {
+  setupRenderingTest(hooks);
+  setupMirage(hooks);
+
+  test('show version number without build metadata', async function (assert) {
+    let crate = this.server.create('crate', { name: 'foo' });
+    this.server.create('version', { crate, num: '1.0.0+abcdef' });
+
+    let store = this.owner.lookup('service:store');
+    this.crate = await store.findRecord('crate', crate.name);
+    this.version = (await this.crate.versions).firstObject;
+
+    await render(hbs`<CrateSidebar @crate={{this.crate}} @version={{this.version}} />`);
+    assert.dom('[title="Copy Cargo.toml snippet to clipboard"]').exists().hasText('foo = "1.0.0"');
+  });
+
+  test('show pre-release version number without build', async function (assert) {
+    let crate = this.server.create('crate', { name: 'foo' });
+    this.server.create('version', { crate, num: '1.0.0-alpha+abcdef' });
+
+    let store = this.owner.lookup('service:store');
+    this.crate = await store.findRecord('crate', crate.name);
+    this.version = (await this.crate.versions).firstObject;
+
+    await render(hbs`<CrateSidebar @crate={{this.crate}} @version={{this.version}} />`);
+    assert.dom('[title="Copy Cargo.toml snippet to clipboard"]').exists().hasText('foo = "1.0.0-alpha"');
+  });
+});