For any language extensions after compiling (targeting wasm32-wasip2?) I got `__wasi_init_tp` error and no language appeared

[luchezarno]

Reproduction steps

This issue the same for any lang ext I tried

Hello! Since in my country I am not able to reach Zed digitalocean url (as many others) I desperately decided to compile extensions myself and tried to learn all these Rust compilations staff.
Finally seems Zed compiles finely some artefact to
C:\Git\zed\extensions\html\target\wasm32-wasip2\zed_html.wasm
and symlinked it to
AppData\Local\Zed\extensions\installed\html\target\wasm32-wasip2\zed_html.wasm

I found what this target wasm32-wasip2 could be a reason for __wasi_init_tp error (see below log)

But WHAT makes Zed to choose wasm32-wasip2 insead of wasm32-wasip1?
Because in my local Git zed/Cargo.toml I do not find any wasm32-wasip2 mentions (since I pointing Zed to get folder C:\Git\zed\extensions\html\ to compile)
and more, I put explicitly to my local git C:\Git\zed.cargo\config.toml with

[build]
target = "wasm32-wasip1"

Seems something built-in in Zed Install Dev Extensions feature force target wasm32-wasip2 or what?

1. Start Zed on Windows
2. Go to Extensions / Install Dev Extensions
3. Choose C:\Git\zed\extensions\html from Zed git local folder
4. Get that log in Zed

2026-02-08T13:10:15+03:00 INFO  [extension::extension_builder] compiling Rust extension C:\Git\zed\extensions\html
2026-02-08T13:10:17+03:00 INFO  [extension::extension_builder] compiling Rust crate for extension C:\Git\zed\extensions\html
2026-02-08T13:10:30+03:00 INFO  [extension::extension_builder] compiled Rust crate for extension C:\Git\zed\extensions\html
2026-02-08T13:10:30+03:00 INFO  [extension::extension_builder] encoding wasm component for extension C:\Git\zed\extensions\html
2026-02-08T13:10:30+03:00 INFO  [extension::extension_builder] extension C:\Git\zed\extensions\html written to C:\Git\zed\extensions\html\extension.wasm
2026-02-08T13:10:30+03:00 INFO  [extension::extension_builder] compiled Rust extension C:\Git\zed\extensions\html
2026-02-08T13:10:30+03:00 INFO  [extension::extension_builder] compiling grammar html for extension C:\Git\zed\extensions\html
2026-02-08T13:10:30+03:00 INFO  [extension::extension_builder] downloading wasi-sdk to C:\Users\me\AppData\Local\Zed\extensions\build\wasi-sdk
2026-02-08T13:10:30+03:00 INFO  [extension::extension_builder] checking out html parser
2026-02-08T13:10:32+03:00 ERROR [crates/worktree/src/worktree.rs:3053] working directory `extensions\html\grammars\html` not indexed
2026-02-08T13:10:33+03:00 ERROR [crates/worktree/src/worktree.rs:3053] working directory `extensions\html\grammars\html` not indexed
2026-02-08T13:10:33+03:00 ERROR [crates/worktree/src/worktree.rs:3053] working directory `extensions\html\grammars\html` not indexed
2026-02-08T13:10:34+03:00 ERROR [crates/worktree/src/worktree.rs:3053] working directory `extensions\html\grammars\html` not indexed
2026-02-08T13:10:34+03:00 ERROR [crates/worktree/src/worktree.rs:3053] working directory `extensions\html\grammars\html` not indexed
2026-02-08T13:10:34+03:00 ERROR [crates/worktree/src/worktree.rs:3053] working directory `extensions\html\grammars\html` not indexed
2026-02-08T13:10:35+03:00 INFO  [extension::extension_builder] skipping compilation of html parser because the existing compiled grammar is up to date
2026-02-08T13:10:35+03:00 INFO  [extension::extension_builder] compiled grammar html for extension C:\Git\zed\extensions\html
2026-02-08T13:10:35+03:00 INFO  [extension::extension_builder] finished compiling extension C:\Git\zed\extensions\html
2026-02-08T13:10:35+03:00 ERROR [crates/worktree/src/worktree.rs:3053] working directory `extensions\html\grammars\html` not indexed
2026-02-08T13:10:36+03:00 INFO  [extension_host] rebuilt extension index in 23.6506ms
2026-02-08T13:10:36+03:00 INFO  [extension_host] extensions updated. loading 1, reloading 0, unloading 0
2026-02-08T13:10:36+03:00 ERROR [language::language_registry] failed to load language HTML:
Failed to instantiate Wasm module: invalid import '__wasi_init_tp'

rustup show:

Default host: x86_64-pc-windows-msvc
rustup home:  C:\Users\me\scoop\persist\rustup\.rustup

installed toolchains
--------------------
stable-x86_64-pc-windows-msvc (default)
1.93-x86_64-pc-windows-msvc (active)

active toolchain
----------------
name: 1.93-x86_64-pc-windows-msvc
active because: overridden by 'C:\Git\zed\rust-toolchain.toml'
installed targets:
  wasm32-wasip1
  wasm32-wasip2
  x86_64-pc-windows-msvc
  x86_64-unknown-linux-musl

Local/Zed/ folder
AppData\Local\Zed\extensions\work\html - empty
AppData\Local\Zed\extensions\installed\html - symlnk

Current vs. Expected behavior

Current behaviour in log

2026-02-08T13:10:36+03:00 ERROR [language::language_registry] failed to load language HTML:
Failed to instantiate Wasm module: invalid import '__wasi_init_tp'

and nothing in extensions/work/html folder
and no html lang

Expected
suppose smth should appear in extensions/work/html folder
and html lang

Zed version and system specs

Zed: v0.222.4+stable.147.b385025df963c9e8c3f74cc4dadb1c4b29b3c6f0 (Zed)
OS: Windows 10.0.17763
Memory: 15.3 GiB
Architecture: x86_64
GPU: AMD Radeon(TM) Graphics || AMD Corporation || 20.40.22.03 (20.40.22.03-201210a-362279C-HP)

Attach Zed log file

Zed.log

2026-02-08T13:10:15+03:00 INFO  [extension::extension_builder] compiling Rust extension C:\Git\zed\extensions\html
2026-02-08T13:10:17+03:00 INFO  [extension::extension_builder] compiling Rust crate for extension C:\Git\zed\extensions\html
2026-02-08T13:10:30+03:00 INFO  [extension::extension_builder] compiled Rust crate for extension C:\Git\zed\extensions\html
2026-02-08T13:10:30+03:00 INFO  [extension::extension_builder] encoding wasm component for extension C:\Git\zed\extensions\html
2026-02-08T13:10:30+03:00 INFO  [extension::extension_builder] extension C:\Git\zed\extensions\html written to C:\Git\zed\extensions\html\extension.wasm
2026-02-08T13:10:30+03:00 INFO  [extension::extension_builder] compiled Rust extension C:\Git\zed\extensions\html
2026-02-08T13:10:30+03:00 INFO  [extension::extension_builder] compiling grammar html for extension C:\Git\zed\extensions\html
2026-02-08T13:10:30+03:00 INFO  [extension::extension_builder] downloading wasi-sdk to C:\Users\me\AppData\Local\Zed\extensions\build\wasi-sdk
2026-02-08T13:10:30+03:00 INFO  [extension::extension_builder] checking out html parser
2026-02-08T13:10:32+03:00 ERROR [crates/worktree/src/worktree.rs:3053] working directory `extensions\html\grammars\html` not indexed
2026-02-08T13:10:33+03:00 ERROR [crates/worktree/src/worktree.rs:3053] working directory `extensions\html\grammars\html` not indexed
2026-02-08T13:10:33+03:00 ERROR [crates/worktree/src/worktree.rs:3053] working directory `extensions\html\grammars\html` not indexed
2026-02-08T13:10:34+03:00 ERROR [crates/worktree/src/worktree.rs:3053] working directory `extensions\html\grammars\html` not indexed
2026-02-08T13:10:34+03:00 ERROR [crates/worktree/src/worktree.rs:3053] working directory `extensions\html\grammars\html` not indexed
2026-02-08T13:10:34+03:00 ERROR [crates/worktree/src/worktree.rs:3053] working directory `extensions\html\grammars\html` not indexed
2026-02-08T13:10:35+03:00 INFO  [extension::extension_builder] skipping compilation of html parser because the existing compiled grammar is up to date
2026-02-08T13:10:35+03:00 INFO  [extension::extension_builder] compiled grammar html for extension C:\Git\zed\extensions\html
2026-02-08T13:10:35+03:00 INFO  [extension::extension_builder] finished compiling extension C:\Git\zed\extensions\html
2026-02-08T13:10:35+03:00 ERROR [crates/worktree/src/worktree.rs:3053] working directory `extensions\html\grammars\html` not indexed
2026-02-08T13:10:36+03:00 INFO  [extension_host] rebuilt extension index in 23.6506ms
2026-02-08T13:10:36+03:00 INFO  [extension_host] extensions updated. loading 1, reloading 0, unloading 0
2026-02-08T13:10:36+03:00 ERROR [language::language_registry] failed to load language HTML:
Failed to instantiate Wasm module: invalid import '__wasi_init_tp'

Relevant Zed settings

settings.json

Relevant Keymap

keymap.json

(for AI issues) Model provider details

No response

If you are using WSL on Windows, what flavor of Linux are you using?

None

[luchezarno]

And I cannot try manually run this

$ zed-extension --source-dir ./metals-zed --output ./output --scratch-dir $(mktemp -d)
info: downloading component 'rust-std' for 'wasm32-wasip1'
info: installing component 'rust-std' for 'wasm32-wasip1'

from the article https://zed.dev/blog/zed-decoded-extensions

Because as I can see there is again fetch from digitalocean :(
in C:\Git\extensions.github\workflows\ci.yml

      - name: Download zed-extension CLI if not cached
        if: steps.cache-zed-extension.outputs.cache-hit != 'true'
        run: |
          wget --quiet "https://zed-extension-cli.nyc3.digitaloceanspaces.com/$ZED_EXTENSION_CLI_SHA/x86_64-unknown-linux-gnu/zed-extension"
          chmod +x zed-extension

[chenwuji2000-cyber]

1. delete: extensions/html/grammars/html.wasm
2. reinstall: dev extension

might work :)

[luchezarno]

might work :)

No luck 😒 Zed compiles it without errors.
But then when I just try open any HTML file - that error happens

2026-02-13T17:20:34+03:00 INFO  [extension::extension_builder] compiling Rust extension C:\Git\zed\extensions\html
2026-02-13T17:20:36+03:00 INFO  [extension::extension_builder] compiling Rust crate for extension C:\Git\zed\extensions\html
2026-02-13T17:22:32+03:00 INFO  [extension::extension_builder] compiled Rust crate for extension C:\Git\zed\extensions\html
2026-02-13T17:22:32+03:00 INFO  [extension::extension_builder] encoding wasm component for extension C:\Git\zed\extensions\html
2026-02-13T17:22:32+03:00 INFO  [extension::extension_builder] extension C:\Git\zed\extensions\html written to C:\Git\zed\extensions\html\extension.wasm
2026-02-13T17:22:32+03:00 INFO  [extension::extension_builder] compiled Rust extension C:\Git\zed\extensions\html
2026-02-13T17:22:32+03:00 INFO  [extension::extension_builder] compiling grammar html for extension C:\Git\zed\extensions\html
2026-02-13T17:22:32+03:00 INFO  [extension::extension_builder] downloading wasi-sdk to C:\Users\ruafmd5\AppData\Local\Zed\extensions\build\wasi-sdk
2026-02-13T17:22:32+03:00 INFO  [extension::extension_builder] checking out html parser
2026-02-13T17:22:37+03:00 INFO  [extension::extension_builder] compiling html parser
2026-02-13T17:22:41+03:00 INFO  [extension::extension_builder] compiled grammar html for extension C:\Git\zed\extensions\html
2026-02-13T17:22:41+03:00 INFO  [extension::extension_builder] finished compiling extension C:\Git\zed\extensions\html
2026-02-13T17:22:42+03:00 INFO  [extension_host] rebuilt extension index in 14.2ms
2026-02-13T17:22:42+03:00 INFO  [extension_host] extensions updated. loading 1, reloading 0, unloading 0
...
2026-02-13T17:26:18+03:00 ERROR [language::language_registry] failed to load language HTML:
Failed to instantiate Wasm module: invalid import '__wasi_init_tp'

Of cause this it frequency: uncommon :)) maybe I am single one who tries to install Zed's extensions that weird way :)))