[Nix-dev] builder for ‘*.drv’ failed to produce output path ‘*’

[Tinker]

Hi

I'm trying to write a nix package for pgloader (a db migration tool
written by someone else and can be found at
https://github.com/dimitri/pgloader).

When I run it as `nix-build -A pgloader` then I get:

builder for ‘/nix/store/gz38vqm47i0vfyiqdz6qmqyx7ywprji5-pgloader-3.2.2.drv’
failed to produce output path
‘/nix/store/v5ya763xia00lp40yx6z5c0h6l1cvla2-pgloader-3.2.2’
error: build of
‘/nix/store/gz38vqm47i0vfyiqdz6qmqyx7ywprji5-pgloader-3.2.2.drv’
failed

I'm trying to figure out what it means but maybe someone can already
shed a light?

The package does not have a 'make install', is that why it's
complaining out the missing output path?
What would be the way forward given I don't own the source of the
utility itself?

default.nix (other comments welcome as well):
===
{ stdenv, fetchurl, sbcl, unzip, curl, git, openssl, sqlite, freetds,
lispPackages, cacert }:

stdenv.mkDerivation {
  name = "pgloader-3.2.2";
  buildInputs = [ sbcl unzip curl git openssl sqlite freetds
lispPackages.cl-ssl cacert ];
  LD_LIBRARY_PATH="${lispPackages.cl-ssl}/lib:${openssl}/lib:${sqlite}/lib:${freetds}/lib";
  SSL_CERT_FILE=/etc/ssl/certs/ca-bundle.crt;
  CURL_CA_BUNDLE=/etc/ssl/certs/ca-bundle.crt;

  builder = builtins.toFile "builder.sh" "
    source $stdenv/setup

    PATH=$sbcl/bin:$PATH

    unzip $src
    cd pgloader-*
    sed -i 's/COMPRESS_CORE ?= yes/COMPRESS_CORE ?= no/' Makefile
    make COMPRESS_CORE=no pgloader
  ";

  src = fetchurl {
    url = https://github.com/dimitri/pgloader/archive/master.zip;
    md5 = "8b93075a1a5848a674101d90850dc90e";
    #url = https://github.com/dimitri/pgloader/archive/v3.2.2.zip;
    #md5 = "4d00eb55bf7dbea0a8e55248d2bbb96d";
  };
  inherit sbcl;
}
===

t