fix(ci): add install backend step in noir rebuild (#2182)

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including relevant motivation and context.

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- [ ] If the pull request requires a cryptography review (e.g.
cryptographic algorithm implementations) I have added the 'crypto' tag.
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unexpected formatting changes, testing logs, or commented-out code.
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yarn-project/end-to-end/src/e2e_nested_contract.test.ts

@@ -52,7 +52,7 @@ describe('e2e_nested_contract', () => {
         parentContract.methods
           .entryPoint(childContract.address, childContract.methods.valueInternal.selector.toField())
           .simulate(),
-      ).rejects.toThrowError(/Assertion failed: Sender must be this contract '.*'/);
+      ).rejects.toThrowError('Assertion failed: Sender must be this contract');
     }, 100_000);
 
     it('performs public nested calls', async () => {
@@ -75,7 +75,7 @@ describe('e2e_nested_contract', () => {
         parentContract.methods
           .enqueueCallToChild(childContract.address, childContract.methods.pubIncValueInternal.selector.toField(), 42n)
           .simulate(),
-      ).rejects.toThrowError(/Assertion failed: Sender must be this contract '.*'/);
+      ).rejects.toThrowError('Assertion failed: Sender must be this contract');
     }, 100_000);
 
     it('enqueues multiple public calls', async () => {

yarn-project/noir-contracts/Dockerfile.build

@@ -19,4 +19,5 @@ RUN ./scripts/install_noirup.sh $(pwd)
 ENV PATH="/usr/src/yarn-project/noir-contracts/.nargo/bin:${PATH}"
 
 RUN ./scripts/install_noir.sh
+RUN ./scripts/install_noir_backend.sh
 RUN ./scripts/compile_ci.sh

yarn-project/noir-contracts/bootstrap.sh

@@ -9,6 +9,7 @@ fi
 
 # Update noir
 ./scripts/install_noir.sh
+./scripts/install_noir_backend.sh
 
 # Use yarn script to compile and create types
 yarn 

yarn-project/noir-contracts/scripts/install_noir_backend.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+# Script to install the current barretenberg backend
+
+set -eu
+
+BACKEND_NAME="acvm-backend-barretenberg"
+
+# If the backend is not installed, then install it
+if [ -z $(nargo backend ls | grep $BACKEND_NAME) ]; then
+    echo "Installing $BACKEND_NAME"
+    nargo backend install $BACKEND_NAME https://github.com/AztecProtocol/barretenberg/releases/download/barretenberg-v0.5.1/barretenberg-x86_64-linux-gnu.tar.gz
+fi