Fix Array Deserialization Panic (#837) #2912

Job	Run time
Check Style	11s
Check Documentation	1m 12s
Check (stable)	19s
Test (stable)	9m 9s
Check (nightly)	1m 14s
Test (nightly)	17m 49s
List directories for parallelizing tests	4s
Test assembly	8m 35s
Test (cp6_782/)	14s
Test (mnt4_753/)	29m 32s
Test (mnt6_753/)	15s
Check no_std	28s
Test (./ed25519)	1m 7s
Test (./mnt6_298)	5m 37s
Test (./grumpkin)	1m 6s
Test (./ed_on_cp6_782)	1m 45s
Test (./ed_on_mnt4_753)	3m 47s
Test (./ed_on_bw6_761)	38s
Test (./bls12_381)	3m 22s
Test (./ed_on_bls12_381_bandersnatch)	1m 6s
Test (./ed_on_mnt4_298)	1m 13s
Test (./secq256k1)	1m 2s
Test (./bn254)	2m 27s
Test (./mnt4_298)	3m 55s
Test (./secp256r1)	1m 2s
Test (./vesta)	1m 10s
Test (./ed_on_bn254)	1m 7s
Test (./bw6_761)	3m 58s
Test (./curve25519)	1m 13s
Test (./pallas)	1m 10s
Test (./ed_on_bls12_377)	1m 6s
Test (./secp384r1)	1m 29s
Test (./secp256k1)	1m 16s
Test (./ed_on_bls12_381)	1m 13s
Test (./bls12_377)	4m 34s
Test (./bw6_767)	4m 5s
	1h 59m 30s

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