HTTP Rust WASI P3 Template Failing

[kate-goldenring]

Cannot get http-rust-wasip3-unstable working with Spin 4.0

Repro

curl -fsSL https://spinframework.dev/downloads/install.sh | bash
rustup target add wasm32-wasip1 wasm32-wasip2
sudo mv spin /usr/local/bin/
spin templates install --git https://github.com/spinframework/spin --update
spin new --accept-defaults --template http-rust-wasip3-unstable hellowasip3
cd hellowasip3/
spin build
spin up

Error:

Logging component stdio to ".spin/logs/"
Error: component imports instance `wasi:http/types@0.3.0-rc-2026-01-06`, but a matching implementation was not found in the linker

Caused by:
   0: instance export `response` has the wrong type
   1: resource implementation is missing

[kate-goldenring]

Originally submitted by a spinkube user in #spinkube slack https://cloud-native.slack.com/archives/C06PC7JA1EE/p1777012051055709

[fibonacci1729]

We haven't updated the template tag yet until we land our v4 documentations. Spin v4 targets the stable march rc and we deprecated the unstable template which targets the jan rc.

To use the new templates in meantime, run:

spin templates install --git https://github.com/spinframework/spin --branch main --update

And then just spin new -t http-rust ...