Include timestamp in log format

[tilacog]

Our logs don't include a timestamp in the log lines, we should add them.

[jainamshah102]

I am interested to work on this issue. Can you provide some guidance and assistance in resolving this.

[tilacog]

Thanks, @jainamshah102!

We set up our logging here:

block-oracle/crates/oracle/src/runner/diagnostics.rs

Lines 9 to 25 in 4968d57

	pub fn init_logging(log_level: LevelFilter) {
	set_var("RUST_LOG", "block_oracle=trace");
	let filter = EnvFilter::builder()
	.with_default_directive(log_level.into())
	.from_env_lossy();
	let stdout = fmt::layer()
	.without_time()
	.with_target(false)
	.with_writer(std::io::stdout);
	tracing_subscriber::registry()
	.with(filter)
	.with(stdout)
	.init();
	}

We use the tracing-subscriber crate for that purpose.

It would be ideal to adjust the stdout layer to include an ISO-8501 timestamp prefixing the log message.

[jainamshah102]

@tilacog Can I pick up this issue? Can you please add me in assignees?

[p14c31355]

@tilacog Hi! I am @YoshitakaNaraoka , Japanese Rustacean egg.
This PR is abandoned for a long time, please assign me.