Mauze over functionality is not working - selenium-webdriver

Question

public class AdminUser {
public static void main(String[] args) {
System.setProperty("webdriver.gecko.driver","geckodriver");
WebDriver driver=new FirefoxDriver();
driver.get("https://www.carmax.com/");
Actions builder= new Actions(driver);
WebElement d= driver.findElement(By.xpath("html/body/div[1]/header/div/nav[2]/ul/li[1]/a"));
builder.moveToElement(d).build().perform();
driver.findElement(By.linkText("Why CarMax?")).click();
}
}
I am getting o/p as:
1490543196098 geckodriver INFO Listening on 127.0.0.1:7086
1490543196344 mozprofile::profile INFO Using profile path /var/folders/dg/glyvppvs1dn31sqrrgt7yhjc0000gn/T/rust_mozprofile.l2gu30iSNpnT
1490543196345 geckodriver::marionette INFO Starting browser /Applications/Firefox.app/Contents/MacOS/firefox-bin with args []
1490543196348 geckodriver::marionette INFO Connecting to Marionette on localhost:59046
1490543197117 Marionette INFO Listening on port 59046
Mar 26, 2017 9:16:38 PM org.openqa.selenium.remote.ProtocolHandshake createSession
INFO: Detected dialect: W3C
2017-03-26 21:16:39.067 plugin-container[2943:127691] * CFMessagePort: bootstrap_register(): failed 1100 (0x44c) 'Permission denied', port = 0x9337, name = 'com.apple.tsm.portname'
See /usr/include/servers/bootstrap_defs.h for the error codes.
2017-03-26 21:16:39.072 plugin-container[2943:127691] * CFMessagePort: bootstrap_register(): failed 1100 (0x44c) 'Permission denied', port = 0x933b, name = 'com.apple.CFPasteboardClient'
See /usr/include/servers/bootstrap_defs.h for the error codes.
JavaScript warning: https://s-cdn-tag.medialytics.com/cp, line 19: Error: WebGL: getParameter: parameter: invalid enum value
JavaScript warning: https://s-cdn-tag.medialytics.com/cp, line 19: Error: WebGL: getParameter: parameter: invalid enum value
Exception in thread "main" org.openqa.selenium.ElementNotVisibleException:
Build info: version: '3.3.1', revision: '5234b32', time: '2017-03-10 09:04:52 -0800'
System info: host: 'Javeds-MacBook-Pro.local', ip: 'fd50:1d9:9d9b:eb00:14:5aa0:4eca:be9d', os.name: 'Mac OS X', os.arch: 'x86_64', os.version: '10.12.3', java.version: '1.8.0_112'
Driver info: org.openqa.selenium.firefox.FirefoxDriver
Capabilities [{moz:profile=/var/folders/dg/glyvppvs1dn31sqrrgt7yhjc0000gn/T/rust_mozprofile.l2gu30iSNpnT, rotatable=false, timeouts={implicit=0, page load=300000, script=30000}, pageLoadStrategy=normal, platform=ANY, specificationLevel=0, moz:accessibilityChecks=false, acceptInsecureCerts=false, browserVersion=52.0.1, platformVersion=16.4.0, moz:processID=2941, browserName=firefox, platformName=darwin}]
Session ID: ae3c536b-197f-8941-91b4-f630e7a4dab5
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.openqa.selenium.remote.http.W3CHttpResponseCodec.createException(W3CHttpResponseCodec.java:133)
at org.openqa.selenium.remote.http.W3CHttpResponseCodec.decode(W3CHttpResponseCodec.java:99)
at org.openqa.selenium.remote.http.W3CHttpResponseCodec.decode(W3CHttpResponseCodec.java:43)
at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:163)
at org.openqa.selenium.remote.service.DriverCommandExecutor.execute(DriverCommandExecutor.java:82)
at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:604)
at org.openqa.selenium.remote.RemoteWebElement.execute(RemoteWebElement.java:274)
at org.openqa.selenium.remote.RemoteWebElement.click(RemoteWebElement.java:84)
at AdminUser.main(AdminUser.java:24)