Gigantic error for Rust hello world - linker

Question

I'm very new to Rust. It seems to be a very interesting language, but when I compile a simple hello world program, I get a gigantic error. This is the error I'm getting:
note: "cc" "-m64" "-L" "/usr/local/lib/rustlib/x86_64-apple-darwin/lib" "hello.0.o" "-o" "hello" "-Wl,-force_load,/usr/local/lib/rustlib/x86_64-apple-darwin/lib/libmorestack.a" "-Wl,-dead_strip" "-nodefaultlibs" "/usr/local/lib/rustlib/x86_64-apple-darwin/lib/libstd-198068b3.rlib" "/usr/local/lib/rustlib/x86_64-apple-darwin/lib/libcollections-198068b3.rlib" "/usr/local/lib/rustlib/x86_64-apple-darwin/lib/librustc_unicode-198068b3.rlib" "/usr/local/lib/rustlib/x86_64-apple-darwin/lib/librand-198068b3.rlib" "/usr/local/lib/rustlib/x86_64-apple-darwin/lib/liballoc-198068b3.rlib" "/usr/local/lib/rustlib/x86_64-apple-darwin/lib/liblibc-198068b3.rlib" "/usr/local/lib/rustlib/x86_64-apple-darwin/lib/libcore-198068b3.rlib" "-L" "/usr/local/lib/rustlib/x86_64-apple-darwin/lib" "-L" "/Users/<removed>/Documents/cringe/.rust/lib/x86_64-apple-darwin" "-L" "/Users/<removed>/Documents/cringe/lib/x86_64-apple-darwin" "-l" "System" "-l" "pthread" "-l" "c" "-l" "m" "-l" "compiler-rt"
note: couldn't understand kern.osversion `14.5.0'
ld: warning: directory not found for option '-L/Users/<removed>/Documents/cringe/.rust/lib/x86_64-apple-darwin'
ld: warning: directory not found for option '-L/Users/<removed>/Documents/cringe/lib/x86_64-apple-darwin'
Undefined symbols for architecture x86_64:
"__Unwind_GetLanguageSpecificData", referenced from:
___gcc_personality_v0 in libcompiler-rt.a(gcc_personality_v0.o)
"__Unwind_GetIP", referenced from:
___gcc_personality_v0 in libcompiler-rt.a(gcc_personality_v0.o)
"__Unwind_SetIP", referenced from:
___gcc_personality_v0 in libcompiler-rt.a(gcc_personality_v0.o)
"__Unwind_DeleteException", referenced from:
rt::lang_start::hd654f015947477d622w in libstd-198068b3.rlib(std-198068b3.0.o)
"__Unwind_RaiseException", referenced from:
rt::unwind::imp::panic::h3a53abf3818f0dd1jqw in libstd-198068b3.rlib(std-198068b3.0.o)
"__Unwind_SetGR", referenced from:
___gcc_personality_v0 in libcompiler-rt.a(gcc_personality_v0.o)
"__Unwind_GetIPInfo", referenced from:
sys::backtrace::write::trace_fn::h510f8e821e33fb3fMus in libstd-198068b3.rlib(std-198068b3.0.o)
"__Unwind_Backtrace", referenced from:
sys::backtrace::write::h71ee98355e9ff89fUss in libstd-198068b3.rlib(std-198068b3.0.o)
"__Unwind_GetRegionStart", referenced from:
___gcc_personality_v0 in libcompiler-rt.a(gcc_personality_v0.o)
"__Unwind_Resume", referenced from:
error::Box$LT$Error$u2b$$u20$Send$u20$$u2b$$u20$Sync$u20$$u2b$$u20$$u27$a$GT$.From$LT$$RF$$u27$b$u20$str$GT$::from::haef03d11abb0506f6da in libstd-198068b3.rlib(std-198068b3.0.o)
thread..Inner::drop.33811::h2d4ce2ad919a880a in libstd-198068b3.rlib(std-198068b3.0.o)
sys_common::thread_info::current_thread::h002e72f07e6510beVwr in libstd-198068b3.rlib(std-198068b3.0.o)
thread::Thread::new::h823fd9fbff518de4EBb in libstd-198068b3.rlib(std-198068b3.0.o)
rt::unwind::begin_unwind_inner::h1a353d5ea12e1abeVBw in libstd-198068b3.rlib(std-198068b3.0.o)
rt::unwind::begin_unwind_fmt::h523af64a13dd33d21Aw in libstd-198068b3.rlib(std-198068b3.0.o)
sys::os::getenv::hdf9b4093693c98ceLLu in libstd-198068b3.rlib(std-198068b3.0.o)
...
ld: symbol(s) not found for architecture x86_64
collect2: ld returned 1 exit status
error: aborting due to previous error
This is the program:
fn main() {
println!("Hello, World!");
}
I'm on OS X 10.10.5 (14F27). My Rust version is rustc 1.3.0 (9a92aaf19 2015-09-15)

Answer 1

Try to install libpq-dev, libpq-devel, gcc-multilib, postgresql-devel
(Install them by your own package manager, Sometimes package names differ depending on your platform, so do a quick google search "if doesn't work")
If none of these solutions work:
Try:
rustup self uninstall and reinstall it by: curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh