ci: Switch from BuildJet to GitHub runners (#35826)

In response to an ongoing BuildJet outage, consider migrating CI to
GitHub hosted runners.

Also includes revert of (causing flaky tests):
- https://github.com/zed-industries/zed/pull/35741

Downsides:
- Cost (2x)
- Force migration to Ubuntu 22.04 from 20.04 will bump our glibc minimum
from 2.31 to 2.35. Which would break RHEL 9.x (glibc 2.34), Ubuntu 20.04
(EOL) and derivatives.

Release Notes:

- N/A

.github/actionlint.yml

@@ -5,6 +5,11 @@ self-hosted-runner:
     # GitHub-hosted Runners
     - github-8vcpu-ubuntu-2404
     - github-16vcpu-ubuntu-2404
+    - github-32vcpu-ubuntu-2404
+    - github-8vcpu-ubuntu-2204
+    - github-16vcpu-ubuntu-2204
+    - github-32vcpu-ubuntu-2204
+    - github-16vcpu-ubuntu-2204-arm
     - windows-2025-16
     - windows-2025-32
     - windows-2025-64

.github/actions/build_docs/action.yml

@@ -13,7 +13,7 @@ runs:
       uses: swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2
       with:
         save-if: ${{ github.ref == 'refs/heads/main' }}
-        cache-provider: "buildjet"
+        # cache-provider: "buildjet"
 
     - name: Install Linux dependencies
       shell: bash -euxo pipefail {0}

.github/workflows/bump_patch_version.yml

@@ -16,7 +16,7 @@ jobs:
   bump_patch_version:
     if: github.repository_owner == 'zed-industries'
     runs-on:
-      - buildjet-16vcpu-ubuntu-2204
+      - github-16vcpu-ubuntu-2204
     steps:
       - name: Checkout code
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4

.github/workflows/ci.yml

@@ -137,7 +137,7 @@ jobs:
       github.repository_owner == 'zed-industries' &&
       needs.job_spec.outputs.run_tests == 'true'
     runs-on:
-      - buildjet-8vcpu-ubuntu-2204
+      - github-8vcpu-ubuntu-2204
     steps:
       - name: Checkout repo
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
@@ -168,7 +168,7 @@ jobs:
     needs: [job_spec]
     if: github.repository_owner == 'zed-industries'
     runs-on:
-      - buildjet-8vcpu-ubuntu-2204
+      - github-8vcpu-ubuntu-2204
     steps:
       - name: Checkout repo
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
@@ -221,7 +221,7 @@ jobs:
       github.repository_owner == 'zed-industries' &&
       (needs.job_spec.outputs.run_tests == 'true' || needs.job_spec.outputs.run_docs == 'true')
     runs-on:
-      - buildjet-8vcpu-ubuntu-2204
+      - github-8vcpu-ubuntu-2204
     steps:
       - name: Checkout repo
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
@@ -328,7 +328,7 @@ jobs:
       github.repository_owner == 'zed-industries' &&
       needs.job_spec.outputs.run_tests == 'true'
     runs-on:
-      - buildjet-16vcpu-ubuntu-2204
+      - github-16vcpu-ubuntu-2204
     steps:
       - name: Add Rust to the PATH
         run: echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"
@@ -342,7 +342,7 @@ jobs:
         uses: swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2
         with:
           save-if: ${{ github.ref == 'refs/heads/main' }}
-          cache-provider: "buildjet"
+          # cache-provider: "buildjet"
 
       - name: Install Linux dependencies
         run: ./script/linux
@@ -380,7 +380,7 @@ jobs:
       github.repository_owner == 'zed-industries' &&
       needs.job_spec.outputs.run_tests == 'true'
     runs-on:
-      - buildjet-8vcpu-ubuntu-2204
+      - github-8vcpu-ubuntu-2204
     steps:
       - name: Add Rust to the PATH
         run: echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"
@@ -394,7 +394,7 @@ jobs:
         uses: swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2
         with:
           save-if: ${{ github.ref == 'refs/heads/main' }}
-          cache-provider: "buildjet"
+          # cache-provider: "buildjet"
 
       - name: Install Clang & Mold
         run: ./script/remote-server && ./script/install-mold 2.34.0
@@ -597,7 +597,8 @@ jobs:
     timeout-minutes: 60
     name: Linux x86_x64 release bundle
     runs-on:
-      - buildjet-16vcpu-ubuntu-2004 # ubuntu 20.04 for minimal glibc
+      - github-16vcpu-ubuntu-2204
+      # - buildjet-16vcpu-ubuntu-2004 # ubuntu 20.04 for minimal glibc
     if: |
       startsWith(github.ref, 'refs/tags/v')
       || contains(github.event.pull_request.labels.*.name, 'run-bundling')
@@ -650,7 +651,7 @@ jobs:
     timeout-minutes: 60
     name: Linux arm64 release bundle
     runs-on:
-      - buildjet-32vcpu-ubuntu-2204-arm
+      - github-16vcpu-ubuntu-2204-arm
     if: |
       startsWith(github.ref, 'refs/tags/v')
       || contains(github.event.pull_request.labels.*.name, 'run-bundling')

.github/workflows/deploy_cloudflare.yml

@@ -9,7 +9,7 @@ jobs:
   deploy-docs:
     name: Deploy Docs
     if: github.repository_owner == 'zed-industries'
-    runs-on: buildjet-16vcpu-ubuntu-2204
+    runs-on: github-16vcpu-ubuntu-2204
 
     steps:
       - name: Checkout repo

.github/workflows/deploy_collab.yml

@@ -61,7 +61,7 @@ jobs:
       - style
       - tests
     runs-on:
-      - buildjet-16vcpu-ubuntu-2204
+      - github-16vcpu-ubuntu-2204
     steps:
       - name: Install doctl
         uses: digitalocean/action-doctl@v2
@@ -94,7 +94,7 @@ jobs:
     needs:
       - publish
     runs-on:
-      - buildjet-16vcpu-ubuntu-2204
+      - github-16vcpu-ubuntu-2204
 
     steps:
       - name: Checkout repo

.github/workflows/eval.yml

@@ -32,7 +32,7 @@ jobs:
       github.repository_owner == 'zed-industries' &&
       (github.event_name != 'pull_request' || contains(github.event.pull_request.labels.*.name, 'run-eval'))
     runs-on:
-      - buildjet-16vcpu-ubuntu-2204
+      - github-16vcpu-ubuntu-2204
     steps:
       - name: Add Rust to the PATH
         run: echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"
@@ -46,7 +46,7 @@ jobs:
         uses: swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2
         with:
           save-if: ${{ github.ref == 'refs/heads/main' }}
-          cache-provider: "buildjet"
+          # cache-provider: "buildjet"
 
       - name: Install Linux dependencies
         run: ./script/linux

.github/workflows/nix.yml

@@ -20,7 +20,7 @@ jobs:
       matrix:
         system:
           - os: x86 Linux
-            runner: buildjet-16vcpu-ubuntu-2204
+            runner: github-16vcpu-ubuntu-2204
             install_nix: true
           - os: arm Mac
             runner: [macOS, ARM64, test]

.github/workflows/randomized_tests.yml

@@ -20,7 +20,7 @@ jobs:
     name: Run randomized tests
     if: github.repository_owner == 'zed-industries'
     runs-on:
-      - buildjet-16vcpu-ubuntu-2204
+      - github-16vcpu-ubuntu-2204
     steps:
       - name: Install Node
         uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4

.github/workflows/release_nightly.yml

@@ -128,7 +128,8 @@ jobs:
     name: Create a Linux *.tar.gz bundle for x86
     if: github.repository_owner == 'zed-industries'
     runs-on:
-      - buildjet-16vcpu-ubuntu-2004
+      - github-16vcpu-ubuntu-2204
+      # - buildjet-16vcpu-ubuntu-2004
     needs: tests
     steps:
       - name: Checkout repo
@@ -168,7 +169,7 @@ jobs:
     name: Create a Linux *.tar.gz bundle for ARM
     if: github.repository_owner == 'zed-industries'
     runs-on:
-      - buildjet-32vcpu-ubuntu-2204-arm
+      - github-16vcpu-ubuntu-2204-arm
     needs: tests
     steps:
       - name: Checkout repo

.github/workflows/unit_evals.yml

@@ -23,7 +23,7 @@ jobs:
     timeout-minutes: 60
     name: Run unit evals
     runs-on:
-      - buildjet-16vcpu-ubuntu-2204
+      - github-16vcpu-ubuntu-2204
     steps:
       - name: Add Rust to the PATH
         run: echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"
@@ -37,7 +37,7 @@ jobs:
         uses: swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2
         with:
           save-if: ${{ github.ref == 'refs/heads/main' }}
-          cache-provider: "buildjet"
+          # cache-provider: "buildjet"
 
       - name: Install Linux dependencies
         run: ./script/linux