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-rw-r--r--nix/libstore/local-store.cc3
1 files changed, 2 insertions, 1 deletions
diff --git a/nix/libstore/local-store.cc b/nix/libstore/local-store.cc
index a890ab56b3..a115f65847 100644
--- a/nix/libstore/local-store.cc
+++ b/nix/libstore/local-store.cc
@@ -1165,7 +1165,8 @@ string LocalStore::getLineFromSubstituter(RunningSubstituter & run)
string::size_type p;
while (((p = err.find('\n')) != string::npos)
|| ((p = err.find('\r')) != string::npos)) {
- printMsg(lvlError, run.program + ": " + string(err, 0, p));
+ string thing(err, 0, p + 1);
+ writeToStderr(run.program + ": " + thing);
err = string(err, p + 1);
}
}