Add logging to the assembler #4343

Job	Run time
rustfmt	12s
Clippy	37s
Check Rust stable on ubuntu with --all-targets --no-default-features	50s
no-std (stable, wasm32-unknown-unknown)	1m 3s
Check Rust stable on ubuntu with --all-targets	51s
no-std (nightly, wasm32-unknown-unknown)	50s
Test Rust nightly on windows-2022	0s
Check Rust stable on ubuntu with --all-targets --all-features	47s
Test Rust stable on ubuntu with --profile test-release	5m 34s
Check Rust nightly on ubuntu with --all-targets --no-default-features	48s
Test Rust stable on ubuntu with --profile test-release --doc	3m 6s
Check Rust nightly on ubuntu with --all-targets	45s
Test Rust nightly on ubuntu with --profile test-release	5m 27s
Check Rust nightly on ubuntu with --all-targets --all-features	53s
Test Rust nightly on ubuntu with --profile test-release --doc	3m 3s
	24m 46s

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