False positive error on function or assosciate items

rust-analyzer version v0.3.2330, there is an error like this:

but I can jump to the definition of this function, means rust-analyzer actually knows function new_at, why is there still an error?

seems it comes from rustc output:

error[E0599]: no function or associated item named `new_at` found for struct `tentacle::runtime::Interval` in the current scope
  --> /Users/yukang/code/ckb/network/src/services/dump_peer_store.rs:72:45
   |
72 |                     p2p::runtime::Interval::new_at(DEFAULT_DUMP_INTERVAL, DEFAULT_DUMP_INTERVAL);
   |                                             ^^^^^^ function or associated item not found in `Interval`
   |
note: if you're trying to build a new `tentacle::runtime::Interval`, consider using `tentacle::runtime::Interval::new` which returns `tentacle::runtime::Interval`
  --> /Users/yukang/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tentacle-0.6.2/src/runtime/tokio_runtime.rs:34:9
   |
34 |         pub fn new(period: Duration) -> Self {
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
help: there is an associated function `new` with a similar name
  --> /Users/yukang/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tentacle-0.6.2/src/runtime/tokio_runtime.rs:34:9
   |
34 |         pub fn new(period: Duration) -> Self {
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

from the code there is no difference in accessibility:

Start with the reported call in dump_peer_store.rs and compare rust-analyzer's diagnostic with the rustc output for tentacle-0.6.2, including the definition in tokio_runtime.rs. Reproduce the report using the details in the issue and determine whether the accessibility difference is a genuine false positive; document the cause and ensure the diagnostic no longer contradicts the resolved function.