Enabling Proc Attr Macros result in error called 'Option::unwrap()' on a 'None' value

[BlackDex]

While coding on the Vaultwarden project and having Proc Attr Macros enabled i receive several errors. I receive these errors using a current open PR Macro recursion decrease and other optimizations, else i would receive a macro recursion error.

Is there something i can change or do, or can i provide some more information to help and solve this :).

[{
	"resource": "/vaultwarden/src/api/admin.rs",
	"owner": "rustc",
	"code": {
		"value": "macro-error",
		"target": {
			"$mid": 1,
			"external": "https://rust-analyzer.github.io/manual.html#macro-error",
			"path": "/manual.html",
			"scheme": "https",
			"authority": "rust-analyzer.github.io",
			"fragment": "macro-error"
		}
	},
	"severity": 8,
	"message": "not implemented",
	"source": "rust-analyzer",
	"startLineNumber": 72,
	"startColumn": 1,
	"endLineNumber": 75,
	"endColumn": 2
}]

[{
	"resource": "/vaultwarden/src/api/admin.rs",
	"owner": "rustc",
	"code": {
		"value": "macro-error",
		"target": {
			"$mid": 1,
			"external": "https://rust-analyzer.github.io/manual.html#macro-error",
			"path": "/manual.html",
			"scheme": "https",
			"authority": "rust-analyzer.github.io",
			"fragment": "macro-error"
		}
	},
	"severity": 8,
	"message": "called `Option::unwrap()` on a `None` value",
	"source": "rust-analyzer",
	"startLineNumber": 139,
	"startColumn": 1,
	"endLineNumber": 153,
	"endColumn": 2
}]

[Veykril]

What is your current rustc version you are running? Might be that you have a recent nightly that changed the proc-macro abi again

[BlackDex]

I was using 2021-10-14, and i updated yesterday to the latest available. Both had the same message.

[lnicola]

This crashes because we don't implement Span::source_file. As noted in #10378, this is unstable, but it doesn't help when using rocket.

I was surprised about this because rocket 0.5 is supposed to build on stable -- and it does --, but valutwarden is on a revision from July 2020.

[BlackDex]

Ok, we have created a new branch now which is using the 0.5rc version that indeed seems to solve it when using stable.
Though i now have a regression i think with some other stuff, i will need to create a new ticket for that.

Thanks for 'pushing' us to go and update it.