android: crash in `pass_headers`

Stack trace:

```
runtime.cc:506] Aborting thread:
runtime.cc:506] "Thread-15" prio=5 tid=115 Native
runtime.cc:506] | group="" sCount=0 dsCount=0 flags=0 obj=0x13184bb0 self=0x7c85aa3000
runtime.cc:506] | sysTid=7069 nice=0 cgrp=default sched=0/0 handle=0x7c8dd5f4f0
runtime.cc:506] | state=R schedstat=( 12753123400 2272435348 12886 ) utm=821 stm=454 core=3 HZ=100
runtime.cc:506] | stack=0x7c8dc65000-0x7c8dc67000 stackSize=1005KB
runtime.cc:506] | held mutexes= "abort lock"
runtime.cc:506] native: #00 pc 0000000000397740 /system/lib64/libart.so (_ZN3art15DumpNativeStackERNSt3__113basic_ostreamIcNS0_11char_traitsIcEEEEiP12BacktraceMapPKcPNS_9ArtMethodEPv+212)
runtime.cc:506] native: #01 pc 000000000045e434 /system/lib64/libart.so (_ZNK3art6Thread9DumpStackERNSt3__113basic_ostreamIcNS1_11char_traitsIcEEEEbP12BacktraceMapb+348)
runtime.cc:506] native: #02 pc 0000000000445a4c /system/lib64/libart.so (_ZNK3art10AbortState10DumpThreadERNSt3__113basic_ostreamIcNS1_11char_traitsIcEEEEPNS_6ThreadE+56)
runtime.cc:506] native: #03 pc 00000000004458c8 /system/lib64/libart.so (_ZNK3art10AbortState4DumpERNSt3__113basic_ostreamIcNS1_11char_traitsIcEEEE+556)
runtime.cc:506] native: #04 pc 000000000043782c /system/lib64/libart.so (_ZN3art7Runtime5AbortEPKc+172)
runtime.cc:506] native: #05 pc 00000000004380a0 /system/lib64/libart.so (_ZN3art7Runtime7AborterEPKc+24)
runtime.cc:506] native: #06 pc 000000000052283c /system/lib64/libart.so (_ZN7android4base10LogMessageD1Ev+900)
runtime.cc:506] native: #07 pc 00000000002d5db0 /system/lib64/libart.so (_ZN3art9JavaVMExt8JniAbortEPKcS2_+1716)
runtime.cc:506] native: #08 pc 00000000002d5f8c /system/lib64/libart.so (_ZN3art9JavaVMExt9JniAbortVEPKcS2_St9__va_list+116)
runtime.cc:506] native: #09 pc 0000000000108cc8 /system/lib64/libart.so (_ZN3art11ScopedCheck6AbortFEPKcz+148)
runtime.cc:506] native: #10 pc 00000000001087f4 /system/lib64/libart.so (_ZN3art11ScopedCheck11CheckThreadEP7_JNIEnv+536)
runtime.cc:506] native: #11 pc 0000000000106c90 /system/lib64/libart.so (_ZN3art11ScopedCheck5CheckERNS_18ScopedObjectAccessEbPKcPNS_12JniValueTypeE+856)
runtime.cc:506] native: #12 pc 0000000000111334 /system/lib64/libart.so (_ZN3art8CheckJNI17NewPrimitiveArrayEPKcP7_JNIEnviNS_9Primitive4TypeE+648)
runtime.cc:506] native: #13 pc 0000000000d34c8c /data/app/me.lyft.android.dev-lbnFAAX5r7Ep6pLPUfC-Tw==/lib/arm64/libenvoy_jni.so (_ZL12pass_headersP7_JNIEnv13envoy_headersP8_jobject+168)
runtime.cc:506] native: #14 pc 0000000000d34014 /data/app/me.lyft.android.dev-lbnFAAX5r7Ep6pLPUfC-Tw==/lib/arm64/libenvoy_jni.so (_ZL14jvm_on_headers13envoy_headersbPv+304)
runtime.cc:506] native: #15 pc 0000000000d487e0 /data/app/me.lyft.android.dev-lbnFAAX5r7Ep6pLPUfC-Tw==/lib/arm64/libenvoy_jni.so (_ZN5Envoy4Http10Dispatcher21DirectStreamCallbacks13encodeHeadersERKNS0_17ResponseHeaderMapEb+844)
runtime.cc:506] native: #16 pc 00000000010973e8 /data/app/me.lyft.android.dev-lbnFAAX5r7Ep6pLPUfC-Tw==/lib/arm64/libenvoy_jni.so (_ZN5Envoy4Http21ConnectionManagerImpl12ActiveStream21encodeHeadersInternalERNS0_17ResponseHeaderMapEb+1856)
runtime.cc:506] native: #17 pc 0000000001096b34 /data/app/me.lyft.android.dev-lbnFAAX5r7Ep6pLPUfC-Tw==/lib/arm64/libenvoy_jni.so (_ZN5Envoy4Http21ConnectionManagerImpl12ActiveStream13encodeHeadersEPNS1_25ActiveStreamEncoderFilterERNS0_17ResponseHeaderMapEb+800)
runtime.cc:506] native: #18 pc 00000000011749d0 /data/app/me.lyft.android.dev-lbnFAAX5r7Ep6pLPUfC-Tw==/lib/arm64/libenvoy_jni.so (_ZN5Envoy4Http7Utility14sendLocalReplyEbNSt6__ndk18functionIFvONS2_10unique_ptrINS0_17ResponseHeaderMapENS2_14default_deleteIS5_EEEEbEEENS3_IFvRNS_6Buffer8InstanceEbEEERKbNS0_4CodeEN4absl11string_viewENSK_8optionalIlEEb+1488)
runtime.cc:506] native: #19 pc 0000000001090998 /data/app/me.lyft.android.dev-lbnFAAX5r7Ep6pLPUfC-Tw==/lib/arm64/libenvoy_jni.so (_ZN5Envoy4Http21ConnectionManagerImpl12ActiveStream14sendLocalReplyEbNS0_4CodeEN4absl11string_viewERKNSt6__ndk18functionIFvRNS0_17ResponseHeaderMapEEEEbNS4_8optionalIlEES5_+740)
runtime.cc:506] native: #20 pc 000000000109061c /data/app/me.lyft.android.dev-lbnFAAX5r7Ep6pLPUfC-Tw==/lib/arm64/libenvoy_jni.so (_ZN5Envoy4Http21ConnectionManagerImpl12ActiveStream13onIdleTimeoutEv+248)
runtime.cc:506] native: #21 pc 00000000011b5d4c /data/app/me.lyft.android.dev-lbnFAAX5r7Ep6pLPUfC-Tw==/lib/arm64/libenvoy_jni.so (event_process_active_single_queue+744)
runtime.cc:506] native: #22 pc 00000000011b1b8c /data/app/me.lyft.android.dev-lbnFAAX5r7Ep6pLPUfC-Tw==/lib/arm64/libenvoy_jni.so (event_base_loop+1344)
runtime.cc:506] native: #23 pc 0000000000e3dadc /data/app/me.lyft.android.dev-lbnFAAX5r7Ep6pLPUfC-Tw==/lib/arm64/libenvoy_jni.so (_ZN5Envoy6Server12InstanceImpl3runEv+476)
runtime.cc:506] native: #24 pc 0000000000d739dc /data/app/me.lyft.android.dev-lbnFAAX5r7Ep6pLPUfC-Tw==/lib/arm64/libenvoy_jni.so (_ZN5Envoy14MainCommonBase3runEv+76)
runtime.cc:506] native: #25 pc 0000000000d3540c /data/app/me.lyft.android.dev-lbnFAAX5r7Ep6pLPUfC-Tw==/lib/arm64/libenvoy_jni.so (_ZN5Envoy6Engine3runENSt6__ndk112basic_stringIcNS1_11char_traitsIcEENS1_9allocatorIcEEEES7_+468)
runtime.cc:506] native: #26 pc 0000000000d47438 /data/app/me.lyft.android.dev-lbnFAAX5r7Ep6pLPUfC-Tw==/lib/arm64/libenvoy_jni.so (_ZNSt6__ndk114__thread_proxyINS_5tupleIJNS_10unique_ptrINS_15__thread_structENS_14default_deleteIS3_EEEEMN5Envoy6EngineEF14envoy_status_tNS_12basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEEESF_EPS8_SF_SF_EEEEEPvSK_+144)
runtime.cc:506] native: #27 pc 0000000000068194 /system/lib64/libc.so (_ZL15__pthread_startPv+36)
runtime.cc:506] native: #28 pc 000000000001f664 /system/lib64/libc.so (__start_thread+68)
```