error when i build the code

[itachizhu]

my code:

    let client = connect(format!("memcache://{}:{}?verify_mode=none", "localhost", "12321")).unwrap();

    client.set("foo", "bar", 0).unwrap();

    let value: Option<String> = client.get("foo").unwrap();

    println!("{:?}", value);

then when I run: cargo build error: linking with cc failed: exit status: 1= note: LC_ALL="C" PATH="/root/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/bin:/root/.cargo/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games" VSLANG="1033" "cc" "-m64" "/tmp/rustcarvLOT/symbols.o" "/home/itachi/code/pelikan/target/release/deps/memcache_proxy-062c071115dcfb42.memcache_proxy.1049eaaa4be7a3de-cgu.0.rcgu.o" "-Wl,--as-needed" "-L" "/home/itachi/code/pelikan/target/release/deps" "-L" "/home/itachi/code/pelikan/target/release/build/boring-sys-d40d3f335e631a6a/out/build/" "-L" "/root/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/tmp/rustcarvLOT/libboring_sys-82f14df4ffcf8e10.rlib" "/root/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-d092fa2c0bdfc89c.rlib" "-Wl,-Bdynamic" "-lssl" "-lcrypto" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "/root/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/home/itachi/code/pelikan/target/release/deps/memcache_proxy-062c071115dcfb42" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-Wl,-O1" "-nodefaultlibs" = note: /usr/bin/ld: /home/itachi/code/pelikan/target/release/deps/memcache_proxy-062c071115dcfb42.memcache_proxy.1049eaaa4be7a3de-cgu.0.rcgu.o: in function openssl::ssl::connector::SslConnector::connect': memcache_proxy.1049eaaa4be7a3de-cgu.0:(.text._ZN7openssl3ssl9connector12SslConnector7connect17h12a3d9b65aef87acE+0x10f): undefined reference to SSL_ctrl' /usr/bin/ld: /home/itachi/code/pelikan/target/release/deps/memcache_proxy-062c071115dcfb42.memcache_proxy.1049eaaa4be7a3de-cgu.0.rcgu.o: in function openssl_sys::openssl::ssl::SSL_CTX_set_mode': /root/.cargo/registry/src/index.crates.io-6f17d22bba15001f/openssl-sys-0.9.91/src/./ssl.rs:246: undefined reference to SSL_CTX_ctrl' collect2: error: ld returned 1 exit status

= note: some extern functions couldn't be found; some native libraries may need to be installed or have their path specified = note: use the -l flag to specify native libraries to link = note: use the cargo:rustc-link-lib directive to specify the native libraries to link with Cargo (see https://doc.rust-lang.org/cargo/reference/build-scripts.html#cargorustc-link-libkindname)

OS: ubuntu 20.04 sudo apt install pkg-config libssl-dev libclang-dev executed