[ performance ] Change the order of derivation, derive one strictly after another #749

Job	Run time
Prepare `pack`	10m 8s
Build DepTyCheck docs	17s
Build thirdparties	2m 39s
Build DepTyCheck lib	3m 17s
Aquire test sets for derivation	3s
Test DepTyCheck docs	20m 36s
Test DepTyCheck lib	16m 48s
Build PIL example	3m 44s
Test DepTyCheck's derivation (arg-deps)	1m 34s
Test DepTyCheck's derivation (canonicsig)	1m 22s
Test DepTyCheck's derivation (cons-analysis)	1m 21s
Test DepTyCheck's derivation (derivation/core)	4m 11s
Test DepTyCheck's derivation (derivation/distribution)	3m 28s
Test DepTyCheck's derivation (derivation/infra)	20m 16s
Test DepTyCheck's derivation (derivation/least-effort/print/adt)	3m 58s
Test DepTyCheck's derivation (derivation/least-effort/print/gadt)	4m 9s
Test DepTyCheck's derivation (derivation/least-effort/print/regression)	7m 12s
Test DepTyCheck's derivation (derivation/least-effort/run/adt)	3m 2s
Test DepTyCheck's derivation (derivation/least-effort/run/gadt)	6m 16s
Test DepTyCheck's derivation (derivation/least-effort/run/regression)	6m 27s
Test DepTyCheck's derivation (inputvalidation)	1m 32s
Test DepTyCheck's derivation (up-to-renaming-ttimp-eq)	1m 38s
Test PIL example	1m 16s
	2h 5m 14s

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