Diary

Build

fatal error C1056: cannot update the time date stamp field

Only in Windows and due to Leptos
This is due to a dependency that can not compile to wasm32-unknown-unknown
Suspicions is that leptos build the frontend to wasm32 but also the backend dependencies
- the backend dependencies may not be compatible to wasm32 explaining where the error comes from
A fix is to build the app backend separately and removing trunk influence
- in tauri.conf.json remove the lines
```
  "beforeDevCommand": "trunk serve",
  "beforeBuildCommand": "trunk build",
```
- build backend then you can relaunch
tauri-apps/tauri#10926

Windows only: system error 0x5

Windows defender will prevent cargo from writing to the filesystem
add directory to the exclusions
be careful when you remove a directory the exclusion is not working anymore even if you recreate the same directory
- for example for target/debug with cargo clean

Server responses

Sometimes the server put some courts as bookable: false
- not sure yet why we should check with official app

Rust

Tracing

the default with default FormatSubscriber for #[instrument] is not to log any span but only event
- can be solved with the with_span_event in the builder
spans lifecycle: new, (enter, exit)*, close
- a span can be entered and exited multiple times when the execution thread change context (specific to async)

Android

Embedded files do not work with Android: tauri-apps/tauri#10338