2: [60] SSL peer certificate or SSH remote key was not OK (SSL certificate OpenSSL verify result: unable to get local issuer certificate (20))

Stack backtrace:
   0: <curl::error::Error as anyhow::context::ext::StdError>::ext_context::<alloc::string::String>
   1: <cargo::util::network::retry::Retry>::try::<(alloc::vec::Vec<u8>, cargo::sources::registry::http_remote::StatusCode), <cargo::sources::registry::http_remote::HttpRegistry>::handle_completed_downloads::{closure#1}>
   2: <cargo::sources::registry::http_remote::HttpRegistry as cargo::sources::registry::RegistryData>::block_until_ready
   3: <cargo::sources::registry::RegistrySource as cargo::sources::source::Source>::block_until_ready
   4: <cargo::sources::replaced::ReplacedSource as cargo::sources::source::Source>::block_until_ready
   5: <cargo::core::registry::PackageRegistry as cargo::core::registry::Registry>::block_until_ready
   6: cargo::core::resolver::resolve
   7: cargo::ops::resolve::resolve_with_previous
   8: cargo::ops::resolve::resolve_with_registry
   9: cargo::ops::resolve::resolve_ws_with_opts
  10: cargo::ops::cargo_compile::create_bcx
  11: cargo::ops::cargo_compile::compile_ws
  12: cargo::ops::cargo_compile::compile_with_exec
  13: cargo::ops::cargo_compile::compile
  14: cargo::commands::build::exec
  15: <cargo::cli::Exec>::exec
  16: cargo::cli::main
  17: cargo::main
  18: std::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
  19: std::rt::lang_start::<()>::{closure#0}
  20: <&dyn core::ops::function::Fn<(), Output = i32> + core::panic::unwind_safe::RefUnwindSafe + core::marker::Sync as core::ops::function::FnOnce<()>>::call_once
             at /rustc/c61a3a44d1a5bee35914cada6c788a05e0808f5b/library/core/src/ops/function.rs:287:21
  21: std::panicking::catch_unwind::do_call::<&dyn core::ops::function::Fn<(), Output = i32> + core::panic::unwind_safe::RefUnwindSafe + core::marker::Sync, i32>
             at /rustc/c61a3a44d1a5bee35914cada6c788a05e0808f5b/library/std/src/panicking.rs:581:40
  22: std::panicking::catch_unwind::<i32, &dyn core::ops::function::Fn<(), Output = i32> + core::panic::unwind_safe::RefUnwindSafe + core::marker::Sync>
             at /rustc/c61a3a44d1a5bee35914cada6c788a05e0808f5b/library/std/src/panicking.rs:544:19
  23: std::panic::catch_unwind::<&dyn core::ops::function::Fn<(), Output = i32> + core::panic::unwind_safe::RefUnwindSafe + core::marker::Sync, i32>
             at /rustc/c61a3a44d1a5bee35914cada6c788a05e0808f5b/library/std/src/panic.rs:359:14
  24: std::rt::lang_start_internal::{closure#0}
             at /rustc/c61a3a44d1a5bee35914cada6c788a05e0808f5b/library/std/src/rt.rs:175:24
  25: std::panicking::catch_unwind::do_call::<std::rt::lang_start_internal::{closure#0}, isize>
             at /rustc/c61a3a44d1a5bee35914cada6c788a05e0808f5b/library/std/src/panicking.rs:581:40
  26: std::panicking::catch_unwind::<isize, std::rt::lang_start_internal::{closure#0}>
             at /rustc/c61a3a44d1a5bee35914cada6c788a05e0808f5b/library/std/src/panicking.rs:544:19
  27: std::panic::catch_unwind::<std::rt::lang_start_internal::{closure#0}, isize>
             at /rustc/c61a3a44d1a5bee35914cada6c788a05e0808f5b/library/std/src/panic.rs:359:14
  28: std::rt::lang_start_internal
             at /rustc/c61a3a44d1a5bee35914cada6c788a05e0808f5b/library/std/src/rt.rs:171:5
  29: main
  30: _start
             at /usr/src/lib/csu/amd64/crt1.c:76:7
error: failed to get `cfg-if` as a dependency of package `ztop v0.3.0 (/tmp/cirrus-ci-build)`

Caused by:
  download of config.json failed

Caused by:
  failed to download from `https://index.crates.io/config.json`

Caused by:
  [60] SSL peer certificate or SSH remote key was not OK (SSL certificate OpenSSL verify result: unable to get local issuer certificate (20))

Exit status: 101