1. Create a new project
2. Create a new script named "Example.cs"
3. Into the script file copy and paste example from here: https://docs.unity3d.com/ScriptReference/Microphone.Start.html
4. Save the script
5. Build the project

Expected result: the build succeeds or fails with an error that indicates that Player Settings require microphone usage description
Actual result: the build fails with ambiguous errors as seen below (important to read notes)

Reproducible with: 2021.2.0b7, 2021.2.0a14, 2022.1.0a5
Not reproducible with 2019.4.29f1, 2020.3.16f1, 2021.1.17f1, 2021.2.0a13

Notes:
1. The project only has one modification, which is a script set up using this example https://docs.unity3d.com/ScriptReference/Microphone.Start.html
2. The script does not even need to be included in a build for it to fail
3. Removing Microphone.Start(); in Example.cs script or adding microphone description in player settings resolves the errors
4. The errors are caused by the need to provide microphone usage description starting from 2020.1.0a18, however, errors became ambiguous at 2021.2.0a14 which I marked as regression

All build errors:
UnityEditor.BuildPlayerWindow+BuildMethodException: 3 errors
at UnityEditor.BuildPlayerWindow+DefaultBuildMethods.BuildPlayer (UnityEditor.BuildPlayerOptions options) [0x002cc] in /Users/bokken/buildslave/unity/build/Editor/Mono/BuildPlayerWindowBuildMethods.cs:193
at UnityEditor.BuildPlayerWindow.CallBuildMethods (System.Boolean askForBuildLocation, UnityEditor.BuildOptions defaultBuildOptions) [0x00080] in /Users/bokken/buildslave/unity/build/Editor/Mono/BuildPlayerWindowBuildMethods.cs:94
UnityEngine.GUIUtility:ProcessEvent (int,intptr,bool&) (at /Users/bokken/buildslave/unity/build/Modules/IMGUI/GUIUtility.cs:189)