Improve "resolution failed" error

Previously:

error: Cannot build '/nix/store/cqc798lwy2njwbdzgd0319z4r19j2d1w-nix-manual-2.33.0pre20251101_e4e4063.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/f1kln1c6z9r7rlhj0h9shcpch7j5g1fj-nix-manual-2.33.0pre20251101_e4e4063-man
         /nix/store/k65203rx5g1kcagpcz3c3a09bghcj92a-nix-manual-2.33.0pre20251101_e4e4063
error: Cannot build '/nix/store/ajk2fb6r7ijn2fc5c3h85n6zdi36xlfl-nixops-manual.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/0anr0998as8ry4hr5g3f3iarszx5aisx-nixops-manual
error: resolution failed

Now:

error: Cannot build '/nix/store/cqc798lwy2njwbdzgd0319z4r19j2d1w-nix-manual-2.33.0pre20251101_e4e4063.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/f1kln1c6z9r7rlhj0h9shcpch7j5g1fj-nix-manual-2.33.0pre20251101_e4e4063-man
         /nix/store/k65203rx5g1kcagpcz3c3a09bghcj92a-nix-manual-2.33.0pre20251101_e4e4063
error: Cannot build '/nix/store/ajk2fb6r7ijn2fc5c3h85n6zdi36xlfl-nixops-manual.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/0anr0998as8ry4hr5g3f3iarszx5aisx-nixops-manual
error: Build failed due to failed dependency

Author: roberth

src/libstore/build/derivation-goal.cc

@@ -147,7 +147,7 @@ Goal::Co DerivationGoal::haveDerivation(bool storeDerivation)
         co_await await(std::move(waitees));
     }
     if (nrFailed != 0) {
-        co_return doneFailure({BuildResult::Failure::DependencyFailed, "resolution failed"});
+        co_return doneFailure({BuildResult::Failure::DependencyFailed, "Build failed due to failed dependency"});
     }
 
     if (resolutionGoal->resolvedDrv) {

tests/functional/build.sh

@@ -184,6 +184,7 @@ test "$status" = 1
 if isDaemonNewer "2.29pre"; then
     <<<"$out" grepQuiet -E "error: Cannot build '.*-x4\\.drv'"
     <<<"$out" grepQuiet -E "Reason: 1 dependency failed."
+    <<<"$out" grepQuiet -E "Build failed due to failed dependency"
 else
     <<<"$out" grepQuiet -E "error: 1 dependencies of derivation '.*-x4\\.drv' failed to build"
 fi