Some more error-handling cleanup in actix. #214

Job	Run time
Rustfmt	6s
Test (stable)	14s
Test example (actix, stable)	42s
Test (1.75.0)	14s
Test example (actix, nightly)	49s
Test (1.67.1)	1m 31s
Test example (axum, stable)	28s
Test (1.61.0)	1m 28s
Test example (axum, nightly)	37s
Test (beta)	14s
Test example (gotham, stable)	36s
Test (nightly)	14s
Test example (gotham, nightly)	43s
Test example (iron, stable)	21s
Test example (iron, nightly)	27s
Test example (nickel, stable)	30s
Test example (nickel, nightly)	28s
Test example (simple, stable)	9s
Test example (simple, nightly)	13s
Test example (static-sass, stable)	19s
Test example (static-sass, nightly)	26s
Test example (statics, stable)	8s
Test example (statics, nightly)	15s
Test example (tide, stable)	44s
Test example (tide, nightly)	44s
Test example (warp03, stable)	40s
Test example (warp03, nightly)	44s
	14m 4s

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