Description
🐛 Bug description
Summary:
- I attempted to complete the Quickstart "hello-wasm" from the wasm-book.
- Got error for no wasm32-unknown-unknown target.
- Followed instructions for non-rustup install of that target with slight alterations for my particular OS below.
- Still got a weird error
- Followed up and explored a bit and point out where I think the issue is in wasm-build.
Got this error.
(keri) daidoji@darkstar:~/ssi/cesride/wasm$ wasm-pack build
[INFO]: 🎯 Checking for the Wasm target...
Error: wasm32-unknown-unknown target not found in sysroot: "/usr"
Used rustc from the following path: "/usr/bin/rustc"
It looks like Rustup is not being used. For non-Rustup setups, the wasm32-unknown-unknown target needs to be installed manually. See https://rustwasm.github.io/wasm-pack/book/prerequisites/non-rustup-setups.html on how to do this.
Caused by: wasm32-unknown-unknown target not found in sysroot: "/usr"
Used rustc from the following path: "/usr/bin/rustc"
It looks like Rustup is not being used. For non-Rustup setups, the wasm32-unknown-unknown target needs to be installed manually. See https://rustwasm.github.io/wasm-pack/book/prerequisites/non-rustup-setups.html on how to do this.
Attempted to follow the instructions in the error message (ie https://rustwasm.github.io/wasm-pack/book/prerequisites/non-rustup-setups.html). However, I'm using Slackware Linux (-current) and the system rust package (not installed with rustup). Slackware seems to install rustlib to /usr/lib64/rustlib/. So I put the files there thinking it would be no big deal.
Got the same error. ie)
(keri) daidoji@darkstar:~/ssi/cesride/wasm$ rustc --print sysroot
/usr
(keri) daidoji@darkstar:~/ssi/cesride/wasm$ ls /usr/lib64/rustlib/
components manifest-cargo.gz manifest-rust-src.gz manifest-rustfmt-preview.gz uninstall.sh*
etc/ manifest-clippy-preview.gz manifest-rust-std-x86_64-unknown-linux-gnu.gz rust-installer-version wasm32-unknown-unknown/
install.log manifest-rust-docs.gz manifest-rustc.gz src/ x86_64-unknown-linux-gnu/
Then I ran with RUST_LOG, wasm-build is def looking in /usr/lib/rustlib
(keri) daidoji@darkstar:~/ssi/cesride/wasm$ RUST_LOG=info wasm-pack build
[INFO wasm_pack::command] Running build command...
[INFO wasm_pack::command::build] Checking rustc version...
[INFO wasm_pack::command::build] rustc version is 70.
[INFO wasm_pack::command::build] Checking crate configuration...
[INFO wasm_pack::command::build] Crate is correctly configured.
[INFO wasm_pack::command::build] Checking for wasm-target...
[INFO]: 🎯 Checking for the Wasm target...
[INFO wasm_pack::build::wasm_target] Looking for wasm32-unknown-unknown in "/usr/lib/rustlib"
[INFO wasm_pack::build::wasm_target] Failed to find wasm32-unknown-unknown in "/usr/lib/rustlib"
...
However, rustc seems to know where those target files are located
(keri) daidoji@darkstar:~/ssi/cesride/wasm/hello-wasm$ rustc --target wasm32-unknown-unknown --print target-libdir
/usr/lib64/rustlib/wasm32-unknown-unknown/lib
I tried putting a softlink where wasm-build is expecting those files to live but then I got this weird error but I'm too new to Rust to figure out what that means exactly.
(keri) daidoji@darkstar:~/ssi/cesride/waqm/hello-wasm$ sudo ln -s /usr/lib64/rustlib /usr/lib/rustlib
(keri) daidoji@darkstar:~/ssi/cesride/wasm/hello-wasm$ wasm-pack build
[INFO]: 🎯 Checking for the Wasm target...
[INFO]: 🌀 Compiling to Wasm...
Compiling proc-macro2 v1.0.69
Compiling unicode-ident v1.0.12
Compiling wasm-bindgen-shared v0.2.87
Compiling once_cell v1.18.0
Compiling bumpalo v3.14.0
Compiling log v0.4.20
Compiling wasm-bindgen v0.2.87
Compiling cfg-if v1.0.0
error[E0514]: found crate `core` compiled by an incompatible version of rustc
|
= note: the following crate versions were found:
crate `core` compiled by rustc 1.70.0 (90c541806 2023-05-31): /usr/lib64/rustlib/wasm32-unknown-unknown/lib/libcore-fd7d76a056998c87.rlib
= help: please recompile that crate using this compiler (rustc 1.70.0 (90c541806 2023-05-31) (built from a source tarball)) (consider running `cargo clean` first)
error[E0514]: found crate `compiler_builtins` compiled by an incompatible version of rustc
|
= note: the following crate versions were found:
crate `compiler_builtins` compiled by rustc 1.70.0 (90c541806 2023-05-31): /usr/lib64/rustlib/wasm32-unknown-unknown/lib/libcompiler_builtins-b4a59f6f2c0f4614.rlib
= help: please recompile that crate using this compiler (rustc 1.70.0 (90c541806 2023-05-31) (built from a source tarball)) (consider running `cargo clean` first)
For more information about this error, try `rustc --explain E0514`.
error: could not compile `cfg-if` (lib) due to 2 previous errors
warning: build failed, waiting for other jobs to finish...
Error: Compiling your crate to WebAssembly failed
Caused by: Compiling your crate to WebAssembly failed
Caused by: failed to execute `cargo build`: exited with exit status: 101
full command: cd "/home/daidoji/ssi/cesride/wasm/hello-wasm" && "cargo" "build" "--lib" "--release" "--target" "wasm32-unknown-unknown"
🤔 Expected Behavior
The Quickstart Hello-wasm guide should work even though I'm using a non-rustup env.
👟 Steps to reproduce
Oh sorry, there should be enough from above. I literally couldn't get through the quickstart guide so running it on a slackware system should produce the same issue.
Wasm-pack starting point
Looks like this is the guilty culprit. Instead of using this and instead using whatever rustc --target wasm32-unknown-unknown --print target-libdir is doing to locate that directory seems like the right way to go about it. Glad to submit a PR if someone can point me in the right direction. Still learning Rust and wasm-pack.
🌍 Your environment
Include the relevant details of your environment.
wasm-pack version: wasm-pack 0.12.1
rustc version: rustc 1.70.0 (90c541806 2023-05-31) (built from a source tarball)