$ cargo build --verbose
       Fresh lazy_static v0.1.16
       Fresh utf8-ranges v0.1.3
       Fresh num-traits v0.1.42
       Fresh unicode-xid v0.0.4
       Fresh unicode-segmentation v1.2.0
       Fresh regex-syntax v0.3.9
       Fresh winapi-build v0.1.1
       Fresh getopts v0.2.17
       Fresh void v1.0.2
       Fresh quote v0.3.15
       Fresh winapi v0.2.8
       Fresh libc v0.2.36
       Fresh rustc-serialize v0.3.24
       Fresh cc v1.0.4
       Fresh lazy_static v0.2.11
       Fresh num-integer v0.1.35
       Fresh synom v0.11.3
       Fresh heck v0.3.0
       Fresh unreachable v0.1.1
       Fresh rand v0.4.2
       Fresh memchr v0.1.11
       Fresh rand v0.3.20
       Fresh time v0.1.39
       Fresh num-complex v0.1.41
       Fresh num-iter v0.1.34
       Fresh syn v0.11.11
       Fresh erlang_nif-sys v0.6.3
       Fresh aho-corasick v0.5.3
       Fresh num-bigint v0.1.41
       Fresh rustler_codegen v0.16.0
       Fresh kernel32-sys v0.2.2
       Fresh rustler v0.16.0
       Fresh num-rational v0.1.41
       Fresh miniz-sys v0.1.10
       Fresh thread-id v2.0.0
       Fresh num v0.1.41
       Fresh flate2 v0.2.20
       Fresh thread_local v0.2.7
       Fresh regex v0.1.80
       Fresh rustml v0.0.7
   Compiling adlock_dbscan v0.1.1 (file:///home/cj/elixir_projects/ad_lock/native/adlock_dbscan)
     Running `rustc --crate-name adlock_dbscan src/lib.rs --crate-type dylib --emit=dep-info,link -C debuginfo=2 -C metadata=bc3e64ed07e35666 --out-dir /home/cj/elixir_projects/ad_lock/native/adlock_dbscan/target/debug/deps -L dependency=/home/cj/elixir_projects/ad_lock/native/adlock_dbscan/target/debug/deps --extern rustml=/home/cj/elixir_projects/ad_lock/native/adlock_dbscan/target/debug/deps/librustml-d0d467f921750949.rlib --extern rustler=/home/cj/elixir_projects/ad_lock/native/adlock_dbscan/target/debug/deps/librustler-cfe0d4aca313ce93.rlib --extern rustler_codegen=/home/cj/elixir_projects/ad_lock/native/adlock_dbscan/target/debug/deps/librustler_codegen-71bc3533bac46c09.so --extern lazy_static=/home/cj/elixir_projects/ad_lock/native/adlock_dbscan/target/debug/deps/liblazy_static-e56e0eebe24d7f61.rlib -L native=/home/cj/elixir_projects/ad_lock/native/adlock_dbscan/target/debug/build/miniz-sys-678f410ba3e047db/out`
warning: unused `#[macro_use]` import
 --> src/lib.rs:2:1
  |
2 | #[macro_use] extern crate rustler_codegen;
  | ^^^^^^^^^^^^
  |
  = note: #[warn(unused_imports)] on by default

warning: unused `#[macro_use]` import
 --> src/lib.rs:4:1
  |
4 | #[macro_use] extern crate rustml;
  | ^^^^^^^^^^^^

error: linking with `cc` failed: exit code: 1
  |
  = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-L" "/home/cj/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/home/cj/elixir_projects/ad_lock/native/adlock_dbscan/target/debug/deps/adlock_dbscan.adlock_dbscan0.rcgu.o" "/home/cj/elixir_projects/ad_lock/native/adlock_dbscan/target/debug/deps/adlock_dbscan.adlock_dbscan1.rcgu.o" "/home/cj/elixir_projects/ad_lock/native/adlock_dbscan/target/debug/deps/adlock_dbscan.adlock_dbscan10.rcgu.o" "/home/cj/elixir_projects/ad_lock/native/adlock_dbscan/target/debug/deps/adlock_dbscan.adlock_dbscan11.rcgu.o" "/home/cj/elixir_projects/ad_lock/native/adlock_dbscan/target/debug/deps/adlock_dbscan.adlock_dbscan12.rcgu.o" "/home/cj/elixir_projects/ad_lock/native/adlock_dbscan/target/debug/deps/adlock_dbscan.adlock_dbscan13.rcgu.o" "/home/cj/elixir_projects/ad_lock/native/adlock_dbscan/target/debug/deps/adlock_dbscan.adlock_dbscan14.rcgu.o" "/home/cj/elixir_projects/ad_lock/native/adlock_dbscan/target/debug/deps/adlock_dbscan.adlock_dbscan15.rcgu.o" "/home/cj/elixir_projects/ad_lock/native/adlock_dbscan/target/debug/deps/adlock_dbscan.adlock_dbscan2.rcgu.o" "/home/cj/elixir_projects/ad_lock/native/adlock_dbscan/target/debug/deps/adlock_dbscan.adlock_dbscan3.rcgu.o" "/home/cj/elixir_projects/ad_lock/native/adlock_dbscan/target/debug/deps/adlock_dbscan.adlock_dbscan4.rcgu.o" "/home/cj/elixir_projects/ad_lock/native/adlock_dbscan/target/debug/deps/adlock_dbscan.adlock_dbscan5.rcgu.o" "/home/cj/elixir_projects/ad_lock/native/adlock_dbscan/target/debug/deps/adlock_dbscan.adlock_dbscan6.rcgu.o" "/home/cj/elixir_projects/ad_lock/native/adlock_dbscan/target/debug/deps/adlock_dbscan.adlock_dbscan7.rcgu.o" "/home/cj/elixir_projects/ad_lock/native/adlock_dbscan/target/debug/deps/adlock_dbscan.adlock_dbscan8.rcgu.o" "/home/cj/elixir_projects/ad_lock/native/adlock_dbscan/target/debug/deps/adlock_dbscan.adlock_dbscan9.rcgu.o" "-o" "/home/cj/elixir_projects/ad_lock/native/adlock_dbscan/target/debug/deps/libadlock_dbscan.so" "/home/cj/elixir_projects/ad_lock/native/adlock_dbscan/target/debug/deps/adlock_dbscan.crate.metadata.rcgu.o" "/home/cj/elixir_projects/ad_lock/native/adlock_dbscan/target/debug/deps/adlock_dbscan.crate.allocator.rcgu.o" "-Wl,-z,relro,-z,now" "-nodefaultlibs" "-L" "/home/cj/elixir_projects/ad_lock/native/adlock_dbscan/target/debug/deps" "-L" "/home/cj/elixir_projects/ad_lock/native/adlock_dbscan/target/debug/build/miniz-sys-678f410ba3e047db/out" "-L" "/home/cj/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "-Wl,--whole-archive" "/tmp/rustc.CeD3WKLFqdWi/liblazy_static-e56e0eebe24d7f61.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc.CeD3WKLFqdWi/librustler-cfe0d4aca313ce93.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc.CeD3WKLFqdWi/liberlang_nif_sys-bd8a96f6b1e8ebd0.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc.CeD3WKLFqdWi/liblazy_static-eb026ce1200efaef.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc.CeD3WKLFqdWi/librustml-d0d467f921750949.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc.CeD3WKLFqdWi/libflate2-99b1304933c3fda6.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc.CeD3WKLFqdWi/libminiz_sys-6c5d2450dc6c6d36.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc.CeD3WKLFqdWi/librand-6a87560d96abe585.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc.CeD3WKLFqdWi/libnum-1b6490774640a29a.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc.CeD3WKLFqdWi/libnum_rational-425410ea1d388f2e.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc.CeD3WKLFqdWi/libnum_complex-b2b9802f6e87ee12.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc.CeD3WKLFqdWi/libnum_iter-2282bb96b7986fe8.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc.CeD3WKLFqdWi/libnum_bigint-04b28467c762d5ef.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc.CeD3WKLFqdWi/libnum_integer-d60749b9f64b6a01.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc.CeD3WKLFqdWi/libnum_traits-40c23219b943b0f9.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc.CeD3WKLFqdWi/librustc_serialize-3daf7fbbbeb27b1f.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc.CeD3WKLFqdWi/librand-2766b218614115ed.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc.CeD3WKLFqdWi/libtime-3156ca527fde85b8.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc.CeD3WKLFqdWi/libregex-f84d5d3d0417b6ad.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc.CeD3WKLFqdWi/libregex_syntax-8cc9a3d36966fa97.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc.CeD3WKLFqdWi/libaho_corasick-7666f68cdbaf306a.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc.CeD3WKLFqdWi/libmemchr-816007fab612d54a.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc.CeD3WKLFqdWi/libthread_local-02e02713d7d033bd.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc.CeD3WKLFqdWi/libthread_id-0dec327bce06929a.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc.CeD3WKLFqdWi/liblibc-b1ca85687f9f2272.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc.CeD3WKLFqdWi/libutf8_ranges-6fdfaeaf698f1b07.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc.CeD3WKLFqdWi/libstd-58a9e2944951d97f.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc.CeD3WKLFqdWi/libpanic_unwind-167b5e977a2ab35c.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc.CeD3WKLFqdWi/libunwind-b8892ba833aa6677.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc.CeD3WKLFqdWi/liballoc_system-17235785be0fea01.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc.CeD3WKLFqdWi/liblibc-2e9b8cf09e3563de.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc.CeD3WKLFqdWi/liballoc-d7195d5e94bc6586.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc.CeD3WKLFqdWi/libstd_unicode-963f18f265d9b8d3.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc.CeD3WKLFqdWi/libcore-48934815da5d2bfb.rlib" "-Wl,--no-whole-archive" "/tmp/rustc.CeD3WKLFqdWi/libcompiler_builtins-a6b6fad6cc543169.rlib" "-Wl,-Bdynamic" "-l" "blas" "-l" "opencv_highgui" "-l" "opencv_imgcodecs" "-l" "opencv_core" "-l" "opencv_imgproc" "-l" "util" "-l" "util" "-l" "dl" "-l" "rt" "-l" "pthread" "-l" "pthread" "-l" "gcc_s" "-l" "c" "-l" "m" "-l" "rt" "-l" "pthread" "-l" "util" "-l" "util" "-shared"
  = note: /usr/bin/ld: cannot find -lopencv_imgcodecs
          collect2: error: ld returned 1 exit status


error: aborting due to previous error

error: Could not compile `adlock_dbscan`.

Caused by:
  process didn't exit successfully: `rustc --crate-name adlock_dbscan src/lib.rs --crate-type dylib --emit=dep-info,link -C debuginfo=2 -C metadata=bc3e64ed07e35666 --out-dir /home/cj/elixir_projects/ad_lock/native/adlock_dbscan/target/debug/deps -L dependency=/home/cj/elixir_projects/ad_lock/native/adlock_dbscan/target/debug/deps --extern rustml=/home/cj/elixir_projects/ad_lock/native/adlock_dbscan/target/debug/deps/librustml-d0d467f921750949.rlib --extern rustler=/home/cj/elixir_projects/ad_lock/native/adlock_dbscan/target/debug/deps/librustler-cfe0d4aca313ce93.rlib --extern rustler_codegen=/home/cj/elixir_projects/ad_lock/native/adlock_dbscan/target/debug/deps/librustler_codegen-71bc3533bac46c09.so --extern lazy_static=/home/cj/elixir_projects/ad_lock/native/adlock_dbscan/target/debug/deps/liblazy_static-e56e0eebe24d7f61.rlib -L native=/home/cj/elixir_projects/ad_lock/native/adlock_dbscan/target/debug/build/miniz-sys-678f410ba3e047db/out` (exit code: 101)