old_contents: 
  
  var Babel = require('babel-core');
  
  module.exports = function (wallaby) {
  
      return {
          files: [
              {
                pattern: 'src/tests/fixtures/*.js',
                instrument: false
              },
              'src/**/*.js',
              {
                  pattern: 'src/tests/**/*.spec.js',
                  ignore: true
              },
              {
                pattern: 'src/tests/fixtures/*.snapshot',
                instrument: false
              },
              {
                  pattern: 'src/react-devtools/**/*.js',
                  instrument: false
              },
              {
                  pattern: 'src/tests/helpers/**/*.js',
                  instrument: false
              },
              {
                  pattern: 'src/react-devtools/frontend/**/*.js',
                  ignore: true
              },
              {
                  pattern: 'src/react-devtools/plugins/**/*.js',
                  ignore: true
              }],
  
          tests: ['src/tests/testRenderer/**/*.spec.js'],
          env: {
              type: 'node',
              runner: 'node',
              workers: {
                  recycle: false
              }
          },
        debug:true,
  
          compilers: {
              'src/**/*.js': wallaby.compilers.babel({
                  babel: Babel
              }),
              'src/**/*.jsx': wallaby.compilers.babel({
                  babel: Babel
              })
          }
      };
  };
new_contents: 
  
  var Babel = require('babel-core');
  
  module.exports = function (wallaby) {
  
      return {
          files: [
              {
                pattern: 'src/tests/fixtures/*.js',
                instrument: false
              },
              'src/**/*.js',
              {
                  pattern: 'src/tests/**/*.spec.js',
                  ignore: true
              },
              {
                pattern: 'src/tests/fixtures/*.snapshot',
                instrument: false
              },
              {
                  pattern: 'src/react-devtools/**/*.js',
                  instrument: false
              },
              {
                  pattern: 'src/tests/helpers/**/*.js',
                  instrument: false
              },
              {
                  pattern: 'src/react-devtools/frontend/**/*.js',
                  ignore: true
              },
              {
                  pattern: 'src/react-devtools/plugins/**/*.js',
                  ignore: true
              }],
  
          tests: ['src/tests/testRenderer/**/*.spec.js'],
          env: {
              type: 'node',
              runner: 'node'
          },
        debug:true,
  
          compilers: {
              'src/**/*.js': wallaby.compilers.babel({
                  babel: Babel
              }),
              'src/**/*.jsx': wallaby.compilers.babel({
                  babel: Babel
              })
          }
      };
  };
subject: Allow wallaby worker recycling