| 4 Apr 2025 |
 emily | wonder if it's my fault | 11:32:40 |
 antifuchs | (It wasn’t, hah) | 14:42:13 |
| 5 Apr 2025 |
|  @tinybronca:sibnsk.net left the room. | 15:39:20 |
|  Sapphire changed their profile picture. | 20:07:27 |
|  staberinde joined the room. | 23:01:47 |
| 9 Apr 2025 |
 cleverca22 | having some trouble building a package in rust, it needs both x86-64-linux and wasm32, all of the x86 stuff seems to work with normal buildRustPackage, but then a build.rs file goes and runs cargo with --target=wasm32-unknown-unknown and it fails, how would i get both targets at once? | 01:10:12 |
 K900 | Our default compilers should have WASM targets I think? | 04:59:58 |
| K900 | At least on unstable | 05:00:01 |
| K900 | Not sure about 24.11 | 05:00:03 |
| cleverca22 | In reply to @k900:0upti.me
At least on unstable and i'm on master, so it should work... | 11:55:34 |
| K900 | How does it fail? | 11:55:49 |
| cleverca22 | In reply to @k900:0upti.me
How does it fail? https://github.com/paritytech/polkadot-sdk/blob/master/substrate/utils/wasm-builder/src/prerequisites.rs#L228-L250 | 11:56:43 |
| cleverca22 | this error is getting triggered via build.rs | 11:56:49 |
| cleverca22 | Rust WASM target for toolchain 0rn3apgrjdqrq6zpqsrh5b8dmlxbci42-rustc-1.85.0 is not properly installed; please install it! | 11:56:58 |
 Alyssa Ross | Maybe the check is wrong? | 12:37:34 |
| cleverca22 | error: failed to run custom build command for `name v0.2.2 (/build/name/runtime)`
Caused by:
process didn't exit successfully: `/build/name/target/release/build/name-aa417fbc44577df4/build-script-build` (exit status: 1)
--- stderr
Rust WASM target for toolchain 0rn3apgrjdqrq6zpqsrh5b8dmlxbci42-rustc-1.85.0 is not properly installed; please install it!
Further error information:
------------------------------------------------------------
Compiling dummy-crate v1.0.0 (/build/.tmpvBgI1g)
error: linker `lld` not found
|
= note: No such file or directory (os error 2)
error: could not compile `dummy-crate` (bin "dummy-crate") due to 1 previous error
------------------------------------------------------------
| 12:48:36 |
| cleverca22 | it looks like its trying to run the llvm linker for some reason?? | 12:48:47 |
 ghpzin | I wouldn't call it "check".
From linked code it seemingly tries to build their "dummy crate" inside and fails to output anything as a result around here (which I assume may not be expected to work properly inside buildRustPackage):
https://github.com/paritytech/polkadot-sdk/blob/65441c8199ba8c9c1fe75ba4d432352109e87d43/substrate/utils/wasm-builder/src/prerequisites.rs#L211
https://github.com/paritytech/polkadot-sdk/blob/65441c8199ba8c9c1fe75ba4d432352109e87d43/substrate/utils/wasm-builder/src/prerequisites.rs#L150-L177 | 12:49:51 |
| ghpzin | I wouldn't call it "check".
From linked code it seemingly tries to build their "dummy crate" inside and fails to output anything as a result around here (which I assume may not be expected to work properly inside buildRustPackage, because it does cargo build with its' own things):
https://github.com/paritytech/polkadot-sdk/blob/65441c8199ba8c9c1fe75ba4d432352109e87d43/substrate/utils/wasm-builder/src/prerequisites.rs#L211
https://github.com/paritytech/polkadot-sdk/blob/65441c8199ba8c9c1fe75ba4d432352109e87d43/substrate/utils/wasm-builder/src/prerequisites.rs#L150-L177 | 12:50:36 |
| cleverca22 | the other issue that makes things slower, is the inability of buildRustPackage to cache the deps | 12:52:40 |
| cleverca22 | so it takes 20 minutes to reproduce the failure, after every change | 12:52:49 |
| ghpzin | Honestly I would just try to patch it out to be "noop" (always assume toolchain it tries to check is fine) and see if it is builds. | 12:55:59 |
| ghpzin | * Honestly I would just try to patch it out to be "noop" (always assume toolchain it tries to "check" is fine) and see if it is builds. | 12:56:22 |
| ghpzin | * Honestly I would just try to patch it out to be "noop" (always assume toolchain it tries to "check" is fine) and see if it builds. | 12:56:28 |
| cleverca22 | In reply to @9hp71n:matrix.org
Honestly I would just try to patch it out to be "noop" (always assume toolchain it tries to "check" is fine) and see if it builds. i already deleted build.rs and then it fails because there was no wasm output | 12:56:46 |
| cleverca22 | and patching it to remove the check, i dont think will work, its just going to run cargo on the real wasm project, and then fail the same as dummy-crate | 12:57:15 |
 Gaétan Lepage | What is the best way to reference release/target/x86_64-unknown-linux-gnu/release/ in the checkPhase for instance? | 13:27:45 |
| Gaétan Lepage | Is there a shell variable containing this? | 13:27:53 |
| Alyssa Ross | There is a variable for the system part | 13:39:58 |
| cleverca22 | In reply to @k900:0upti.me
How does it fail? Cannot compile the WASM runtime: no standard library sources found at /nix/store/0rn3apgrjdqrq6zpqsrh5b8dmlxbci42-rustc-1.85.0/lib/rustlib/src/rust!
i gave it an ldd, and now it cant find the standard library | 13:48:05 |
