lifetime | basic go package to handle the lifetime / lifecycle

i think you are looking for this:

Your immediate issue is that T: GarbageBin<'a, 'b> where 'a and 'b are parameters of create_bin_with_rubbish and must therefore outlive calls to that function—but the actual lifetimes passed to T::new are only internal to the function and do not therefore satisfy those bounds.

Instead of parameterising create_bin_with_rubbish with lifetimes 'a and 'b, one way to resolve this would be to use instead an HRTB (higher-ranked trait bound):

In the first case:

Here I'm wondering about the line [in s_client]
New, TLSv1/SSLv3, Cipher is ECDHE-RSA-AES256-GCM-SHA384

You're apparently using OpenSSL 1.0.2, where that's a basically useless relic. Back in the days when OpenSSL supported SSLv2 (mostly until 2010, although almost no one used it much after 2000), the ciphersuite values used for SSLv3 and up (including all TLS, but before 2014 OpenSSL didn't implement higher than TLS1.0) were structured differently than those used for SSLv2, so it was important to qualify the ciphersuite by the 'universe' it existed in. It has almost nothing to do with the protocol version actually used, which appears later in the session-param decode:

Your problem is that you have set SESSION_CONNECTION=session, but your SESSION_DRIVER=default, so you have to use SESSION_DRIVER=database in your .env. See the config/session.php:

You are using the Spring Cloud Connectors library to create the database connection.

If you move the chunk Option into the closure, your code compiles. I can't quite answer why declaring chunk outside the closure results in a lifetime error for the borrow of text inside the closure, but the chunk Option looks superfluous anyways and the following code should be equivalent:

So I seem to have fixed it, although I'm still not sure I understand exactly what I've done...

Your problem is not about lifetimes, you are using the wrong Json struct. You are using rocket::response::content::Json, this can be used to set the Content-Type of a response (see for example this). You want to use rocket::serde::json::Json: