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-rw-r--r--pkgs/build-support/rust/build-rust-crate/configure-crate.nix3
1 files changed, 3 insertions, 0 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 37fef2abd774..7630c6471dcd 100644
--- a/pkgs/build-support/rust/build-rust-crate/configure-crate.nix
+++ b/pkgs/build-support/rust/build-rust-crate/configure-crate.nix
@@ -71,6 +71,9 @@ in ''
   export CARGO_PKG_VERSION_MAJOR=${builtins.elemAt version 0}
   export CARGO_PKG_VERSION_MINOR=${builtins.elemAt version 1}
   export CARGO_PKG_VERSION_PATCH=${builtins.elemAt version 2}
+  export NUM_JOBS=1
+  export RUSTC="rustc"
+  export RUSTDOC="rustdoc"
   if [[ -n "${versionPre}" ]]; then
     export CARGO_PKG_VERSION_PRE="${versionPre}"
   fi