rustup-init curl library problem

[MrSpock]

Hi,

I can't install rust using rustup on BeagleBone Black with latest Debian Jessie with all updates applied.
Here is system info:
Linux arm 4.1.15-bone-rt-r18 #1 Thu Jan 21 23:23:01 CET 2016 armv7l GNU/Linux (armhf)
I'm getting following certificate related error (-v passed for verbose mode):

verbose: installing toolchain 'stable-armv7-unknown-linux-gnueabihf'
verbose: toolchain directory: '/home/spock/.multirust/toolchains/stable-armv7-unknown-linux-gnueabihf'
info: syncing channel updates for 'stable-armv7-unknown-linux-gnueabihf'
verbose: creating temp file: /home/spock/.multirust/tmp/dsv5ds_h4q_rh6pl_file
verbose: downloading file from: 'https://static.rust-lang.org/dist/channel-rust-stable.toml.sha256'
verbose: downloading with curl
verbose: removing toolchain directory: '/home/spock/.multirust/toolchains/stable-armv7-unknown-linux-gnueabihf'
error: could not download file from 'https://static.rust-lang.org/dist/channel-rust-stable.toml.sha256' to '/home/spock/.multirust/tmp/dsv5ds_h4q_rh6pl_file
info: caused by: error during download
info: caused by: [60] Peer certificate cannot be authenticated with given CA certificates
info: backtrace:

stack backtrace:
   0: 0x7f7d4ac3 - backtrace::backtrace::trace::h20da0f9aefd67d85
   1: 0x7f7d51bb - backtrace::capture::Backtrace::new::h3a3d5e9defd7d407
   2: 0x7f7446e3 - download::curl::download::hed1e149a19be43ac
   3: 0x7f743293 - download::download_to_path_with_backend::h755f5d929d2daa7e
   4: 0x7f728d13 - rustup_utils::utils::download_file::h500b991b520d9db8
   5: 0x7f6ee8f3 - rustup_dist::dist::download_hash::h00d1dd7ea06b1fc6
   6: 0x7f6ed863 - rustup_dist::dist::download_and_check::h10ddb82a6c707a9f
   7: 0x7f6ef61f - rustup_dist::dist::update_from_dist_::hd149bbe4a20490eb
   8: 0x7f6ef00b - rustup_dist::dist::update_from_dist::hbe927742f91b89e4
   9: 0x7f6b9cab - rustup::toolchain::Toolchain::install::h452b54d48d67b241
  10: 0x7f6babef - rustup::toolchain::Toolchain::install_from_dist_inner::h485f954a61220fe1
  11: 0x7f6ba96f - rustup::toolchain::Toolchain::install_from_dist::h877a8892c3930f16
  12: 0x7f6899c7 - rustup_init::self_update::install::h2d0f6827788ef9dc
  13: 0x7f6971c3 - rustup_init::main::habce3d2a29c7553b
  14: 0x7f94745f - std::panicking::try::call::h94b205a774fa265c
  15: 0x7f94c1b3 - __rust_maybe_catch_panic
  16: 0x7f94674b - std::rt::lang_start::ha9a21237c3a23329
  17: 0xb6e3a631 - __libc_start_main
rustup: command failed: /tmp/tmp.bQ79Pxj44p/rustup-init -v

You are not using curl binary by some exec so it is impossible to pass -k curl option to ignore certificates verification.
Can't find any method to install rust on this platform.

[MrSpock]

Hah - I've trace source of a problem and for future reference here is solution:
Check your clock. My clock was 3 years in the past (2013) and if you encounter SSL cert with field "not valid before" in the future from system perspective (https://static.rust-lang.org is not valid before 6 August 2014 so it is future from my system point of view with wrong time) you will get this cryptic error :)
Problem solved - always check your clock when having certificate related problems.