IndexMap doesn't implement `Debug`

[Ethan1225]

I have:

let mut test: IndexMap<&str, &str> = IndexMap::new();
test.insert("index1", "value1");
println!("{:?}", test);

test doesn't implement Debug

[cuviper]

There must be more to your problem, because this works fine in the playground:
https://play.rust-lang.org/?version=stable&mode=debug&edition=2018&gist=6bcc805aa3a14b8bb6a2b689288bd829

[Ethan1225]

It can truly pass the compiler , but there is a warning prompt in the jetbrains ide Josh Stone ***@***.***>于2021年6月15日 周二23:29写道：

…

There must be more to your problem, because this works fine in the playground: https://play.rust-lang.org/?version=stable&mode=debug&edition=2018&gist=6bcc805aa3a14b8bb6a2b689288bd829 — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#191 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AFJYOKC4L4CS5YNCVDILOXLTS5WW5ANCNFSM46WYUPXA> .

[cuviper]

If the IDE is inconsistent, you should ask JetBrains.

For instance, see also #148 and intellij-rust/intellij-rust#4631.

[bluss]

Duplicates #148