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-rw-r--r--pkgs/build-support/rust/build-rust-crate/configure-crate.nix2
1 files changed, 1 insertions, 1 deletions
diff --git a/pkgs/build-support/rust/build-rust-crate/configure-crate.nix b/pkgs/build-support/rust/build-rust-crate/configure-crate.nix
index 5ada40b3b9b..d1010ac1adb 100644
--- a/pkgs/build-support/rust/build-rust-crate/configure-crate.nix
+++ b/pkgs/build-support/rust/build-rust-crate/configure-crate.nix
@@ -144,7 +144,7 @@ in ''
   export CARGO_PKG_VERSION_PATCH=${lib.elemAt version 2}
   export CARGO_PKG_VERSION_PRE="${versionPre}"
   export CARGO_PKG_HOMEPAGE="${crateHomepage}"
-  export NUM_JOBS=1
+  export NUM_JOBS=$NIX_BUILD_CORES
   export RUSTC="rustc"
   export RUSTDOC="rustdoc"