# nixos-rebuild switch --show-trace
building Nix...
error: while evaluating the builtin function `derivationStrict':
while instantiating the derivation named `nix-1.0' at `/etc/nixos/nixpkgs/pkgs/tools/package-management/nix/default.nix:8:3':
while evaluating the derivation attribute `builder' at `/etc/nixos/nixpkgs/pkgs/stdenv/generic/default.nix:58:15':
while evaluating the builtin function `getAttr':
while evaluating the builtin function `derivationStrict':
while instantiating the derivation named `bash-4.2-p24' at `/etc/nixos/nixpkgs/pkgs/shells/bash/default.nix:11:3':
while evaluating the derivation attribute `builder' at `/etc/nixos/nixpkgs/pkgs/stdenv/generic/default.nix:58:15':
while evaluating the builtin function `getAttr':
while evaluating the builtin function `derivationStrict':
while instantiating the derivation named `bootstrap-tools' at `/etc/nixos/nixpkgs/pkgs/stdenv/linux/default.nix:55:5':
while evaluating the derivation attribute `builder' at `/etc/nixos/nixpkgs/pkgs/stdenv/linux/default.nix:57:5':
cannot start worker (unexpected end-of-file)
...