[This is internal feature, doesn't affect users]

To reproduce:
1.Create a new Unity project (Unity revision `ad84c73533d2`)
2. Add a C# script with a `Debug.Log` statement in the `Start` Method
3. Build an Android/IL2CPP armv7 and arm64 player, using the Install in builds folder option
4. Open Android Studio for the built project
Android Studio 3.4.2
Build #AI-183.6156.11.34.5692245, built on June 27, 2019
JRE: 1.8.0_152-release-1343-b01 amd64
JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
Windows 10 10.0
5. Do all of the Gradle update stuff
6. Select the arm7Debug_IL2CPP variant
7. Change the debugger to be native
8. Now debug - the process will hang on the phone, waiting for the debugger - but it never connects.
9. Try to run without debugging - the exception in the original post is in the logcat output.

Reproduced with: 2019.3.0a10
Can not test on another version because of the given Unity revision

Tested with:
VLNQA00138, Huawei P20 Pro (CLT-L29), Android 8.1.0, CPU: HiSilicon Kirin 970, GPU: Mali-G72
VLNQA00230, Oneplus OnePlus6T (ONEPLUS A6013), Android 9, CPU: Snapdragon 845 SDM845, GPU: Adreno (TM) 630
VLNQA00277, Asus ROG Phone (ASUS_Z01QD), Android 8.1.0, CPU: Snapdragon 845 SDM845, GPU: Adreno (TM) 630
VLNQA00013, Samsung Galaxy S6 Edge+ (SM-G928F), Android 7.0, CPU: Exynos 7 Octa 7420, GPU: Mali-T760
VLNQA00281, Samsung Galaxy S10e (SM-G970U), Android 9, CPU: Snapdragon 855 SM8150, GPU: Adreno (TM) 640
VLNQA00012, Samsung Galaxy S6 (SM-G920F), Android 7.0, CPU: Exynos 7 Octa 7420, GPU: Mali-T760
VLNQA00015, Samsung Galaxy Note8 (SM-N950W), Android 8.0.0, CPU: Snapdragon 835 MSM8998, GPU: Adreno (TM) 540
VLNQA00224, Samsung Galaxy A5(2017) (SM-A520F), Android 8.0.0, CPU: Exynos 7 Octa 7880, GPU: Mali-T830

No repro:
VLNQA00255, Samsung Galaxy Note3 Neo (SM-N7505), Android 4.4.2, CPU: Exynos 5 Hexa 5260, GPU: Mali-T624
Samsung Galaxy J4 Core (SM-J410F), Android 8.1.0, CPU: NOT FOUND, GPU: Adreno (TM) 308 ( new phone, no IT to print number label)
VLNQA00028, Samsung Galaxy Note4 (SM-N910F), Android 6.0.1, CPU: Snapdragon 805 APQ8084, GPU: Adreno (TM) 420

Notes:
All the devices that have the problem are arm8 devices (64-bits) while the ones where it could not be reproduced are arm7 CPUs (32-bit).
"Install in Builds folder" is only available for source code customers.