Add logging to the assembler #4346

Job	Run time
no-std (stable, wasm32-unknown-unknown)	51s
Check Rust stable on ubuntu with --all-targets --no-default-features	48s
Clippy	37s
rustfmt	9s
no-std (nightly, wasm32-unknown-unknown)	51s
Check Rust stable on ubuntu with --all-targets	42s
Check Rust stable on ubuntu with --all-targets --all-features	48s
Test Rust stable on ubuntu with --profile test-release	5m 35s
Test Rust nightly on windows-2022	0s
Check Rust nightly on ubuntu with --all-targets --no-default-features	52s
Test Rust stable on ubuntu with --profile test-release --doc	2m 58s
Check Rust nightly on ubuntu with --all-targets	44s
Test Rust nightly on ubuntu with --profile test-release	5m 23s
Check Rust nightly on ubuntu with --all-targets --all-features	51s
Test Rust nightly on ubuntu with --profile test-release --doc	2m 58s
	24m 7s

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