Warnings during Scaladoc generation

[SethTisue]

[warn] /home/travis/build/scala/scala-parallel-collections/core/src/main/scala/scala/collection/generic/GenericTraversableTemplate.scala:149:16: not found: type $Coll
[warn]    *  @usecase def flatten[B]: $Coll[B]
[warn]                ^
[warn] 3 deprecations (since 2.13.0); re-run with -deprecation for details
[warn] /home/travis/build/scala/scala-parallel-collections/core/src/main/scala/scala/collection/immutable/OldHashMap.scala:109:6: Variable factoryInfo undefined in comment for object OldHashMap in object OldHashMap
[warn]   * $factoryInfo
[warn]      ^
[warn] /home/travis/build/scala/scala-parallel-collections/core/src/main/scala/scala/collection/immutable/OldHashSet.scala:161:6: Variable factoryInfo undefined in comment for object OldHashSet in object OldHashSet
[warn]   * $factoryInfo
[warn]      ^
[warn] /home/travis/build/scala/scala-parallel-collections/core/src/main/scala/scala/collection/generic/GenericTraversableTemplate.scala:64:50: Variable Coll undefined in comment for method newBuilder in trait GenericParTemplate
[warn]   /** The builder that builds instances of type $Coll[A]
[warn]                                                  ^
[warn] /home/travis/build/scala/scala-parallel-collections/core/src/main/scala/scala/collection/generic/GenericTraversableTemplate.scala:68:53: Variable Coll undefined in comment for method genericBuilder in trait GenericParTemplate
[warn]   /** The generic builder that builds instances of $Coll
[warn]                                                     ^
[warn] /home/travis/build/scala/scala-parallel-collections/core/src/main/scala/scala/collection/generic/GenericTraversableTemplate.scala:109:19: Variable Coll undefined in comment for method unzip3 in trait GenericTraversableTemplate
[warn]    *    val xs = $Coll(
[warn]                   ^
[warn] /home/travis/build/scala/scala-parallel-collections/core/src/main/scala/scala/collection/generic/GenericTraversableTemplate.scala:113:20: Variable Coll undefined in comment for method unzip3 in trait GenericTraversableTemplate
[warn]    *    // xs == ($Coll(1, 2, 3),
[warn]                    ^
[warn] /home/travis/build/scala/scala-parallel-collections/core/src/main/scala/scala/collection/generic/GenericTraversableTemplate.scala:114:20: Variable Coll undefined in comment for method unzip3 in trait GenericTraversableTemplate
[warn]    *    //        $Coll(one, two, three),
[warn]                    ^
[warn] /home/travis/build/scala/scala-parallel-collections/core/src/main/scala/scala/collection/generic/GenericTraversableTemplate.scala:115:20: Variable Coll undefined in comment for method unzip3 in trait GenericTraversableTemplate
[warn]    *    //        $Coll(1, 2, 3))
[warn]                    ^
[warn] /home/travis/build/scala/scala-parallel-collections/core/src/main/scala/scala/collection/generic/GenericTraversableTemplate.scala:109:24: Variable Coll undefined in comment for method unzip3 in trait GenericTraversableTemplate
[warn]    *    val xs = $Coll(
[warn]                        ^
[warn] /home/travis/build/scala/scala-parallel-collections/core/src/main/scala/scala/collection/generic/GenericTraversableTemplate.scala:113:25: Variable Coll undefined in comment for method unzip3 in trait GenericTraversableTemplate
[warn]    *    // xs == ($Coll(1, 2, 3),
[warn]                         ^
[warn] /home/travis/build/scala/scala-parallel-collections/core/src/main/scala/scala/collection/generic/GenericTraversableTemplate.scala:114:25: Variable Coll undefined in comment for method unzip3 in trait GenericTraversableTemplate
[warn]    *    //        $Coll(one, two, three),
[warn]                         ^
[warn] /home/travis/build/scala/scala-parallel-collections/core/src/main/scala/scala/collection/generic/GenericTraversableTemplate.scala:115:25: Variable Coll undefined in comment for method unzip3 in trait GenericTraversableTemplate
[warn]    *    //        $Coll(1, 2, 3))
[warn]                         ^
[warn] /home/travis/build/scala/scala-parallel-collections/core/src/main/scala/scala/collection/generic/GenericTraversableTemplate.scala:79:19: Variable Coll undefined in comment for method unzip in trait GenericTraversableTemplate
[warn]    *    val xs = $Coll(
[warn]                   ^
[warn] /home/travis/build/scala/scala-parallel-collections/core/src/main/scala/scala/collection/generic/GenericTraversableTemplate.scala:83:20: Variable Coll undefined in comment for method unzip in trait GenericTraversableTemplate
[warn]    *    // xs == ($Coll(1, 2, 3),
[warn]                    ^
[warn] /home/travis/build/scala/scala-parallel-collections/core/src/main/scala/scala/collection/generic/GenericTraversableTemplate.scala:84:20: Variable Coll undefined in comment for method unzip in trait GenericTraversableTemplate
[warn]    *    //        $Coll(one, two, three))
[warn]                    ^
[warn] /home/travis/build/scala/scala-parallel-collections/core/src/main/scala/scala/collection/generic/GenericTraversableTemplate.scala:79:24: Variable Coll undefined in comment for method unzip in trait GenericTraversableTemplate
[warn]    *    val xs = $Coll(
[warn]                        ^
[warn] /home/travis/build/scala/scala-parallel-collections/core/src/main/scala/scala/collection/generic/GenericTraversableTemplate.scala:83:25: Variable Coll undefined in comment for method unzip in trait GenericTraversableTemplate
[warn]    *    // xs == ($Coll(1, 2, 3),
[warn]                         ^
[warn] /home/travis/build/scala/scala-parallel-collections/core/src/main/scala/scala/collection/generic/GenericTraversableTemplate.scala:84:25: Variable Coll undefined in comment for method unzip in trait GenericTraversableTemplate
[warn]    *    //        $Coll(one, two, three))
[warn]                         ^
[warn] /home/travis/build/scala/scala-parallel-collections/core/src/main/scala/scala/collection/generic/GenericParCompanion.scala:39:18: Variable coll undefined in comment for method apply in trait GenericParCompanion
[warn]   /** Creates a $coll with the specified elements.
[warn]                  ^
[warn] /home/travis/build/scala/scala-parallel-collections/core/src/main/scala/scala/collection/generic/GenericParCompanion.scala:40:40: Variable coll undefined in comment for method apply in trait GenericParCompanion
[warn]     *  @tparam A      the type of the ${coll}'s elements
[warn]                                        ^
[warn] /home/travis/build/scala/scala-parallel-collections/core/src/main/scala/scala/collection/generic/GenericParCompanion.scala:41:51: Variable coll undefined in comment for method apply in trait GenericParCompanion
[warn]     *  @param elems  the elements of the created $coll
[warn]                                                   ^
[warn] /home/travis/build/scala/scala-parallel-collections/core/src/main/scala/scala/collection/generic/GenericParCompanion.scala:42:23: Variable coll undefined in comment for method apply in trait GenericParCompanion
[warn]     *  @return a new $coll with elements `elems`
[warn]                       ^
[warn] /home/travis/build/scala/scala-parallel-collections/core/src/main/scala/scala/collection/generic/GenericParCompanion.scala:35:40: Variable coll undefined in comment for method empty in trait GenericParCompanion
[warn]     *  @tparam A      the type of the ${coll}'s elements
[warn]                                        ^
[warn] /home/travis/build/scala/scala-parallel-collections/core/src/main/scala/scala/collection/generic/GenericParCompanion.scala:35:48: Variable coll undefined in comment for method empty in trait GenericParCompanion
[warn]     *  @tparam A      the type of the ${coll}'s elements
[warn]                                                ^
[warn] /home/travis/build/scala/scala-parallel-collections/core/src/main/scala/scala/collection/generic/GenericTraversableTemplate.scala:59:68: Variable Coll undefined in comment for method companion in trait GenericTraversableTemplate
[warn]   /** The factory companion object that builds instances of class $Coll.
[warn]                                                                    ^
[warn] /home/travis/build/scala/scala-parallel-collections/core/src/main/scala/scala/collection/generic/GenericTraversableTemplate.scala:60:50: Variable Coll undefined in comment for method companion in trait GenericTraversableTemplate
[warn]    *  (or its `Iterable` superclass where class $Coll is not a `Seq`.)
[warn]                                                  ^
[warn] 28 warnings found