diff --git a/scripts/nightly.yaml b/scripts/nightly.yaml
index 2211e32d2..4bf873e96 100644
--- a/scripts/nightly.yaml
+++ b/scripts/nightly.yaml
@@ -89,7 +89,8 @@ stages:
   - job: LinuxBuild
     variables:
       python: "/opt/python/cp37-cp37m/bin/python"
-      image: "quay.io/pypa/manylinux2010_x86_64:latest"      
+      image: "quay.io/pypa/manylinux2010_x86_64:latest"
+      name: Linux
     displayName: "ManyLinux build"
     pool:
       vmImage: "Ubuntu-18.04"
@@ -400,7 +401,7 @@ stages:
 #      displayName: 'Download MuslLinux Build'
 #      inputs:
 #        artifact: 'MuslLinuxBuild'
-#        path: $(Agent.TempDirectory)
+#        path: $(Agent.TempDirectory)	
     - task: DownloadPipelineArtifact@2
       inputs:
         artifactName: 'Mac'
@@ -412,14 +413,14 @@ stages:
     - script: cd $(Agent.TempDirectory); mkdir osx-x64-bin; cd osx-x64-bin; unzip ../*x64-osx*.zip
     - script: cd $(Agent.TempDirectory); mkdir osx-arm64-bin; cd osx-arm64-bin; unzip ../*arm64-osx*.zip
     - script: cd $(Agent.TempDirectory); mkdir libc-bin; cd libc-bin; unzip ../*glibc*.zip
-    - script: cd $(Agent.TempDirectory); mkdir musl-bin; cd musl-bin; unzip ../*-linux.zip
+#   - script: cd $(Agent.TempDirectory); mkdir musl-bin; cd musl-bin; unzip ../*-linux.zip
     - script: cd $(Agent.TempDirectory); mkdir win32-bin; cd win32-bin; unzip ../*x86-win*.zip
     - script: cd $(Agent.TempDirectory); mkdir win64-bin; cd win64-bin; unzip ../*x64-win*.zip
     - script: python3 -m pip install --user -U setuptools wheel
     - script: cd src/api/python; python3 setup.py sdist
     # take a look at this PREMIUM HACK I came up with to get around the fact that the azure variable syntax overloads the bash syntax for subshells
     - script: cd src/api/python; echo $(Agent.TempDirectory)/libc-bin/* | xargs printf 'PACKAGE_FROM_RELEASE=%s\n' | xargs -I '{}' env '{}' python3 setup.py bdist_wheel
-    - script: cd src/api/python; echo $(Agent.TempDirectory)/musl-bin/* | xargs printf 'PACKAGE_FROM_RELEASE=%s\n' | xargs -I '{}' env '{}' python3 setup.py bdist_wheel
+#   - script: cd src/api/python; echo $(Agent.TempDirectory)/musl-bin/* | xargs printf 'PACKAGE_FROM_RELEASE=%s\n' | xargs -I '{}' env '{}' python3 setup.py bdist_wheel
     - script: cd src/api/python; echo $(Agent.TempDirectory)/win32-bin/* | xargs printf 'PACKAGE_FROM_RELEASE=%s\n' | xargs -I '{}' env '{}' python3 setup.py bdist_wheel
     - script: cd src/api/python; echo $(Agent.TempDirectory)/win64-bin/* | xargs printf 'PACKAGE_FROM_RELEASE=%s\n' | xargs -I '{}' env '{}' python3 setup.py bdist_wheel
     - script: cd src/api/python; echo $(Agent.TempDirectory)/osx-x64-bin/* | xargs printf 'PACKAGE_FROM_RELEASE=%s\n' | xargs -I '{}' env '{}' python3 setup.py bdist_wheel
diff --git a/src/math/simplex/sparse_matrix.h b/src/math/simplex/sparse_matrix.h
index b51b57181..e26531c82 100644
--- a/src/math/simplex/sparse_matrix.h
+++ b/src/math/simplex/sparse_matrix.h
@@ -309,9 +309,9 @@ namespace simplex {
         all_rows get_rows() { return all_rows(*this); }
 
         numeral const& get_coeff(row r, unsigned v) {
-            for (auto & [coeff, u] : get_row(r)) 
-                if (u == v) 
-                    return coeff;
+            for (auto & row : get_row(r)) 
+                if (row.m_var == v) 
+                    return row.m_coeff;
             return m_zero;
         }