Compile ensure-no_std in CI for new lambdaworks backend (lambdaclass#1293)

* Ensure no-std for new lambdaworks backend

* Fix: use correct matrix var name in job

* Remove --release flag in ensure-no_std build

* Update lambdaworks to fix-no-std commit

* Update commit to main

* Bump lambdaworks-math version

* Update changelog

Author: MegaRedHand

.github/workflows/rust.yml

@@ -163,14 +163,15 @@ jobs:
     - name: Check no-std
       run: |
         cd ensure-no_std
-        cargo build --release
+        cargo build --no-default-features
+        cargo build
 
   tests:
     needs: build-programs
     strategy:
       fail-fast: false
       matrix:
-        special-features: ["", "lambdaworks-felt"]
+        special_features: ["", "lambdaworks-felt"]
         target: [ test, test-no_std, test-wasm ]
         # TODO: features
     name: Run tests

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 #### Upcoming Changes
 
+* fix: bump *lambdaworks-math* to latest version, that fixes no-std support [#1293](https://github.com/lambdaclass/cairo-vm/pull/1293)
+
 * build: remove dependecy to `thiserror` (use `thiserror-no-std/std` instead)
 
 * chore: use LambdaWorks' implementation of bit operations for `Felt252` [#1291](https://github.com/lambdaclass/cairo-rs/pull/1291)

Cargo.lock

@@ -11,6 +11,10 @@ cairo-vm = { path = "../vm", default-features = false }
 
 wee_alloc = "0.4.5"
 
+[features]
+default = ["lambdaworks-felt"]
+lambdaworks-felt = ["cairo-felt/lambdaworks-felt"]
+
 
 [profile.dev]
 panic = "abort"

ensure-no_std/Cargo.toml

@@ -19,7 +19,7 @@ lazy_static = { version = "1.4.0", default-features = false, features = [
     "spin_no_std",
 ] }
 serde = { version = "1.0", features = ["derive"], default-features = false }
-lambdaworks-math = { version = "0.1.1", default-features = false, optional = true }
+lambdaworks-math = { version = "0.1.2", default-features = false, optional = true }
 
 [dev-dependencies]
 proptest = "1.1.0"