error: while trying to find an upgrade for ‘stdenv’:
while evaluating the attribute ‘defaultNativeBuildInputs’ of the derivation ‘stdenv’ at /nix/store/mn2p9awcq3s9xcmys7jdhs8yg4vj6ihy-nixpkgs-18.03pre126020.931a0b8be80/nixpkgs/pkgs/stdenv/generic/default.nix:72:14:
while evaluating the attribute ‘bintools’ of the derivation ‘clang-wrapper-with-reexport-hack-4.0.1’ at /nix/store/mn2p9awcq3s9xcmys7jdhs8yg4vj6ihy-nixpkgs-18.03pre126020.931a0b8be80/nixpkgs/pkgs/stdenv/generic/make-derivation.nix:148:11:
while evaluating the attribute ‘handled’ at /nix/store/mn2p9awcq3s9xcmys7jdhs8yg4vj6ihy-nixpkgs-18.03pre126020.931a0b8be80/nixpkgs/pkgs/stdenv/generic/check-meta.nix:204:3:
while evaluating ‘handleEvalIssue’ at /nix/store/mn2p9awcq3s9xcmys7jdhs8yg4vj6ihy-nixpkgs-18.03pre126020.931a0b8be80/nixpkgs/pkgs/stdenv/generic/check-meta.nix:127:21, called from /nix/store/mn2p9awcq3s9xcmys7jdhs8yg4vj6ihy-nixpkgs-18.03pre126020.931a0b8be80/nixpkgs/pkgs/stdenv/generic/check-meta.nix:205:10:
Package ‘binutils-wrapper-2.28.1’ in /nix/store/mn2p9awcq3s9xcmys7jdhs8yg4vj6ihy-nixpkgs-18.03pre126020.931a0b8be80/nixpkgs/pkgs/build-support/bintools-wrapper/default.nix:300 is not supported on ‘x86_64-linux’, refusing to evaluate.