Infallible div by vanishing poly #2937

Job	Run time
Check no_std	31s
Check (stable)	13s
List directories for parallelizing tests	3s
Check (nightly)	1m 16s
Check Documentation	1m 0s
Check Style	10s
Test (stable)	9m 9s
Test assembly	8m 17s
Test (nightly)	17m 24s
Test (cp6_782/)	7s
Test (mnt6_753/)	10s
Test (mnt4_753/)	12m 24s
Test (./curve25519)	1m 3s
Test (./secq256k1)	52s
Test (./mnt6_298)	5m 43s
Test (./bw6_761)	3m 50s
Test (./pallas)	1m 12s
Test (./ed_on_mnt4_753)	3m 52s
Test (./secp384r1)	1m 21s
Test (./ed_on_mnt4_298)	1m 5s
Test (./bn254)	2m 20s
Test (./ed_on_bls12_381)	1m 35s
Test (./ed_on_bw6_761)	39s
Test (./ed_on_cp6_782)	1m 29s
Test (./bls12_381)	3m 18s
Test (./grumpkin)	1m 12s
Test (./bls12_377)	4m 9s
Test (./ed_on_bls12_377)	1m 21s
Test (./ed_on_bls12_381_bandersnatch)	1m 3s
Test (./vesta)	1m 7s
Test (./mnt4_298)	3m 32s
Test (./ed_on_bn254)	1m 5s
Test (./ed25519)	59s
Test (./secp256r1)	57s
Test (./secp256k1)	1m 12s
Test (./bw6_767)	4m 3s
	1h 39m 43s

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