Add logging to the assembler #4349

Job	Run time
Clippy	38s
no-std (stable, wasm32-unknown-unknown)	57s
no-std (nightly, wasm32-unknown-unknown)	1m 40s
Check Rust stable on ubuntu with --all-targets --no-default-features	2m 9s
rustfmt	10s
Check Rust stable on ubuntu with --all-targets	47s
Test Rust stable on ubuntu with --profile test-release	5m 20s
Check Rust stable on ubuntu with --all-targets --all-features	53s
Test Rust nightly on windows-2022	0s
Check Rust nightly on ubuntu with --all-targets --no-default-features	53s
Test Rust stable on ubuntu with --profile test-release --doc	2m 59s
Check Rust nightly on ubuntu with --all-targets	43s
Test Rust nightly on ubuntu with --profile test-release	5m 30s
Check Rust nightly on ubuntu with --all-targets --all-features	46s
Test Rust nightly on ubuntu with --profile test-release --doc	3m 0s
	26m 25s

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