i am trying to build "https://github.com/cher-nov/cryptg" for android, after defining everything i am still getting an error i cannot understand can you please help?
thanks.

this is the error:

Caused by:
process didn't exit successfully: /home/e/Desktop/rust/cryptg/target/release/build/pyo3-ffi-3e8bee156c9e8f82/build-script-build (exit status: 101)
--- stdout
cargo:rerun-if-env-changed=PYO3_CROSS
cargo:rerun-if-env-changed=PYO3_CROSS_LIB_DIR
cargo:rerun-if-env-changed=PYO3_CROSS_PYTHON_VERSION
cargo:rerun-if-env-changed=PYO3_CROSS_PYTHON_IMPLEMENTATION
cargo:rerun-if-env-changed=PYO3_NO_PYTHON

--- stderr
thread 'main' panicked at /home/e/.cargo/registry/src/index.crates.io-6f17d22bba15001f/pyo3-build-config-0.20.2/src/impl_.rs:1286:33:
Path does not exist: Os { code: 2, kind: NotFound, message: "No such file or directory" }
stack backtrace:
0: 0x5d9271c98566 - std::backtrace_rs::backtrace::libunwind::trace::hbee8a7973eeb6c93
at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
1: 0x5d9271c98566 - std::backtrace_rs::backtrace::trace_unsynchronized::hc8ac75eea3aa6899
at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
2: 0x5d9271c98566 - std::sys_common::backtrace::print_fmt::hc7f3e3b5298b1083
at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/sys_common/backtrace.rs:68:5
3: 0x5d9271c98566 - <std::sys_common::backtrace::print::DisplayBacktrace as core::fmt::Display>::fmt::hbb235daedd7c6190
at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/sys_common/backtrace.rs:44:22
4: 0x5d9271cbbba0 - core::fmt::rt::Argument::fmt::h76c38a80d925a410
at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/fmt/rt.rs:142:9
5: 0x5d9271cbbba0 - core::fmt::write::h3ed6aeaa977c8e45
at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/fmt/mod.rs:1120:17
6: 0x5d9271c9588f - std::io::Write::write_fmt::h78b18af5775fedb5
at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/io/mod.rs:1810:15
7: 0x5d9271c98344 - std::sys_common::backtrace::print::h5d645a07e0fcfdbb
at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/sys_common/backtrace.rs:47:5
8: 0x5d9271c98344 - std::sys_common::backtrace::print::h85035a511aafe7a8
at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/sys_common/backtrace.rs:34:9
9: 0x5d9271c99a37 - std::panicking::default_hook::{{closure}}::hcce8cea212785a25
10: 0x5d9271c99799 - std::panicking::default_hook::hf5fcb0f213fe709a
at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:292:9
11: 0x5d9271c99ec8 - std::panicking::rust_panic_with_hook::h095fccf1dc9379ee
at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:779:13
12: 0x5d9271c99da2 - std::panicking::begin_panic_handler::{{closure}}::h032ba12139b353db
at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:657:13
13: 0x5d9271c98a66 - std::sys_common::backtrace::rust_end_short_backtrace::h9259bc2ff8fd0f76
at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/sys_common/backtrace.rs:171:18
14: 0x5d9271c99b00 - rust_begin_unwind
at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:645:5
15: 0x5d9271c27415 - core::panicking::panic_fmt::h784f20a50eaab275
at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/panicking.rs:72:14
16: 0x5d9271c27883 - core::result::unwrap_failed::h03d8a5018196e1cd
at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/result.rs:1649:5
17: 0x5d9271c3e42e - core::result::Result<T,E>::expect::h8beb11f53446bd2f
at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/result.rs:1030:23
18: 0x5d9271c3603b - pyo3_build_config::impl::search_lib_dir::h149935c4f6bb86b1
at /home/e/.cargo/registry/src/index.crates.io-6f17d22bba15001f/pyo3-build-config-0.20.2/src/impl.rs:1286:14
19: 0x5d9271c3591b - pyo3_build_config::impl::find_all_sysconfigdata::h88e7440c5894a6c2
at /home/e/.cargo/registry/src/index.crates.io-6f17d22bba15001f/pyo3-build-config-0.20.2/src/impl.rs:1242:9
20: 0x5d9271c351a0 - pyo3_build_config::impl::find_sysconfigdata::h6945dc31b1f4fac4
at /home/e/.cargo/registry/src/index.crates.io-6f17d22bba15001f/pyo3-build-config-0.20.2/src/impl_.rs:1177:31
21: 0x5d9271c378da - pyo3_build_config::impl_::cross_compile_from_sysconfigdata::ha2da77a2a971b7af
at /home/e/.cargo/registry/src/index.crates.io-6f17d22bba15001f/pyo3-build-config-0.20.2/src/impl_.rs:1350:25
22: 0x5d9271c38237 - pyo3_build_config::impl_::load_cross_compile_config::ha207bdee8fb7b37b
at /home/e/.cargo/registry/src/index.crates.io-6f17d22bba15001f/pyo3-build-config-0.20.2/src/impl_.rs:1476:34
23: 0x5d9271c3ad85 - pyo3_build_config::impl_::make_cross_compile_config::h55fcd06f48f28cd3
at /home/e/.cargo/registry/src/index.crates.io-6f17d22bba15001f/pyo3-build-config-0.20.2/src/impl_.rs:1700:38
24: 0x5d9271c4a1c3 - pyo3_build_config::pyo3_build_script_impl::resolve_interpreter_config::hb55cb19547d3395f
at /home/e/.cargo/registry/src/index.crates.io-6f17d22bba15001f/pyo3-build-config-0.20.2/src/lib.rs:188:50
25: 0x5d9271c2a4ef - build_script_build::configure_pyo3::h660862241ac2233a
at /home/e/.cargo/registry/src/index.crates.io-6f17d22bba15001f/pyo3-ffi-0.20.2/build.rs:80:30
26: 0x5d9271c2ada1 - build_script_build::main::h6499a30294e2ac45
at /home/e/.cargo/registry/src/index.crates.io-6f17d22bba15001f/pyo3-ffi-0.20.2/build.rs:121:21
27: 0x5d9271c291ab - core::ops::function::FnOnce::call_once::h59a15a55be2b1781
at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/ops/function.rs:250:5
28: 0x5d9271c28f0e - std::sys_common::backtrace::__rust_begin_short_backtrace::h1ea601e63da27be9
at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/sys_common/backtrace.rs:155:18
29: 0x5d9271c28f81 - std::rt::lang_start::{{closure}}::h3ba4104c739f57c1
at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/rt.rs:166:18
30: 0x5d9271c90cd1 - core::ops::function::impls::<impl core::ops::function::FnOnce for &F>::call_once::h37600b1e5eea4ecd
at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/ops/function.rs:284:13
31: 0x5d9271c90cd1 - std::panicking::try::do_call::hb4bda49fa13a0c2b
at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:552:40
32: 0x5d9271c90cd1 - std::panicking::try::h8bbf75149211aaaa
at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:516:19
33: 0x5d9271c90cd1 - std::panic::catch_unwind::h8c78ec68ebea34cb
at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panic.rs:142:14
34: 0x5d9271c90cd1 - std::rt::lang_start_internal::{{closure}}::hffdf44a19fd9e220
at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/rt.rs:148:48
35: 0x5d9271c90cd1 - std::panicking::try::do_call::hcb3194972c74716d
at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:552:40
36: 0x5d9271c90cd1 - std::panicking::try::hcdc6892c5f0dba4c
at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:516:19
37: 0x5d9271c90cd1 - std::panic::catch_unwind::h4910beb4573f4776
at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panic.rs:142:14
38: 0x5d9271c90cd1 - std::rt::lang_start_internal::h6939038e2873596b
at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/rt.rs:148:20
39: 0x5d9271c28f5a - std::rt::lang_start::h097246fc9cc59edc
at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/rt.rs:165:17
40: 0x5d9271c2af1e - main
41: 0x7ddefd429d90 - __libc_start_call_main
at ./csu/../sysdeps/nptl/libc_start_call_main.h:58:16
42: 0x7ddefd429e40 - __libc_start_main_impl
at ./csu/../csu/libc-start.c:392:3
43: 0x5d9271c27b45 - _start
44: 0x0 -
warning: build failed, waiting for other jobs to finish...
note: If the build failed due to a missing target, you can run this command:
note:
note: rustup target install aarch64-linux-android