Mechanize login form - Simple via console

console.rb

agent = Mechanize.new
agent.get("http://play.google.com/music/publish/")
form = agent.page.forms.first
/*
=> #<Mechanize::Form
 {name nil}
 {method "POST"}
 {action "https://accounts.google.com/AccountLoginInfo"}
 {fields
  [hidden:0x605897a type: hidden name: Page value: PasswordSeparationSignIn]
  [hidden:0x6058cfe type: hidden name: GALX value: rB1_N2NnXUw]
  [hidden:0x6059064 type: hidden name: gxf value: AFoagUXZwqpGMEgg6CamLJ6pakafdvVgzQ:1458046304462]
  [hidden:0x60593e8 type: hidden name: continue value: https://play.google.com/music/publish/signup]
  [hidden:0x6059762 type: hidden name: followup value: https://play.google.com/music/publish/signup]
  [hidden:0x6059ae6 type: hidden name: service value: sjap]
  [hidden:0x6059e24 type: hidden name: ProfileInformation value: ]
  [hidden:0x605bf58 type: hidden name: _utf8 value: ☃]
  [hidden:0x605be72 type: hidden name: bgresponse value: js_disabled]
  [field:0x605bd82 type: email name: Email value: ]}
 {radiobuttons}
 {checkboxes}
 {file_uploads}
 {buttons [submit:0x605bc2e type: submit name: signIn value: Next]}>
*/

emailField = form.fields.last
/*
>> form.fields.last
=> [field:0x605bd82 type: email name: Email value: ]
*/

emailField = "[email protected]" // Email field is not being populated