Add logging to the assembler #4344

Job	Run time
Clippy	42s
no-std (stable, wasm32-unknown-unknown)	1m 9s
Check Rust stable on ubuntu with --all-targets --no-default-features	43s
no-std (nightly, wasm32-unknown-unknown)	52s
rustfmt	13s
Check Rust stable on ubuntu with --all-targets	58s
Test Rust stable on ubuntu with --profile test-release	5m 38s
Check Rust stable on ubuntu with --all-targets --all-features	41s
Test Rust stable on ubuntu with --profile test-release --doc	3m 14s
Test Rust nightly on windows-2022	0s
Check Rust nightly on ubuntu with --all-targets --no-default-features	52s
Test Rust nightly on ubuntu with --profile test-release	5m 25s
Check Rust nightly on ubuntu with --all-targets	50s
Test Rust nightly on ubuntu with --profile test-release --doc	3m 8s
Check Rust nightly on ubuntu with --all-targets --all-features	50s
	25m 15s

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