failed to run custome build command

[Alexis Sellier]

I have the following error when I run cargo build on beamium 1.4.0 and rustc 1.16.0 (30cf806ef 2017-03-10)

error: failed to run custom build command for `beamium v1.4.0 (file:///beamium-1.4.0)`
process didn't exit successfully: `/beamium-1.4.0/target/debug/build/beamium-64f5cef46ec3ec65/build-script-build` (exit code: 101)
--- stderr
thread 'main' panicked at 'failed to execute process: Error { repr: Os { code: 2, message: "No such file or directory" } }', /buildslave/rust-buildbot/slave/stable-dist-rustc-linux/build/src/libcore/result.rs:868
stack backtrace:
   1:     0x56534adb5fac - std::sys::imp::backtrace::tracing::imp::write::hf33ae72d0baa11ed
                        at /buildslave/rust-buildbot/slave/stable-dist-rustc-linux/build/src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:42
   2:     0x56534adb9e0e - std::panicking::default_hook::{{closure}}::h59672b733cc6a455
                        at /buildslave/rust-buildbot/slave/stable-dist-rustc-linux/build/src/libstd/panicking.rs:351
   3:     0x56534adb9a14 - std::panicking::default_hook::h1670459d2f3f8843
                        at /buildslave/rust-buildbot/slave/stable-dist-rustc-linux/build/src/libstd/panicking.rs:367
   4:     0x56534adba1eb - std::panicking::rust_panic_with_hook::hcf0ddb069e7beee7
                        at /buildslave/rust-buildbot/slave/stable-dist-rustc-linux/build/src/libstd/panicking.rs:555
   5:     0x56534adba084 - std::panicking::begin_panic::hd6eb68e27bdf6140
                        at /buildslave/rust-buildbot/slave/stable-dist-rustc-linux/build/src/libstd/panicking.rs:517
   6:     0x56534adb9fa9 - std::panicking::begin_panic_fmt::hfea5965948b877f8
                        at /buildslave/rust-buildbot/slave/stable-dist-rustc-linux/build/src/libstd/panicking.rs:501
   7:     0x56534adb9f37 - rust_begin_unwind
                        at /buildslave/rust-buildbot/slave/stable-dist-rustc-linux/build/src/libstd/panicking.rs:477
   8:     0x56534ade05bd - core::panicking::panic_fmt::hc0f6d7b2c300cdd9
                        at /buildslave/rust-buildbot/slave/stable-dist-rustc-linux/build/src/libcore/panicking.rs:69
   9:     0x56534adace62 - core::result::unwrap_failed::h8bfe180c617c97ec
                        at /buildslave/rust-buildbot/slave/stable-dist-rustc-linux/build/src/libcore/macros.rs:29
  10:     0x56534adab51c - <core::result::Result<T, E>>::expect::h0c8103379bed6fe6
                        at /buildslave/rust-buildbot/slave/stable-dist-rustc-linux/build/src/libcore/result.rs:769
  11:     0x56534adaf47d - build_script_build::main::h9b89e40c8bb2107f
                        at /beamium-1.4.0/build.rs:7
  12:     0x56534adc230a - __rust_maybe_catch_panic
                        at /buildslave/rust-buildbot/slave/stable-dist-rustc-linux/build/src/libpanic_unwind/lib.rs:98
  13:     0x56534adba6f6 - std::rt::lang_start::hd7c880a37a646e81
                        at /buildslave/rust-buildbot/slave/stable-dist-rustc-linux/build/src/libstd/panicking.rs:436
                        at /buildslave/rust-buildbot/slave/stable-dist-rustc-linux/build/src/libstd/panic.rs:361
                        at /buildslave/rust-buildbot/slave/stable-dist-rustc-linux/build/src/libstd/rt.rs:57
  14:     0x56534adaf9a2 - main
  15:     0x7fa5f8086b44 - __libc_start_main
  16:     0x56534ada9058 - <unknown>
  17:                0x0 - <unknown>