I have a problem with installing rustup.rs on my Windows machine at work.
Configuration: Windows 7 Enterprise x64 SP1
Version of rustup-init: rustup-init 0.2.0 (57f335a 2016-06-21)

My machine works behind a proxy so that's can be a reason of the problem.

If I run ./rustup-init.exe I got following output:
error: could not download file from 'https://static.rust-lang.org/dist/channel-rust-stable.toml.sha256' to 'C:\Users\oleg\.multirust\tmp\m51gbmnxzt7hj98l_file' info: caused by: http request returned failure: [35] SSL connect error

Command RUSTUP_USE_HYPER=1 ./rustup-init.exe produces:
info: syncing channel updates for 'stable-x86_64-pc-windows-msvc' error: could not download file from 'https://static.rust-lang.org/dist/channel-rust-stable.toml.sha256' to 'C:\Users\oleg\.multirust\tmp\cshl3tis_w_u4t2b_file info: caused by: failed to make network request info: caused by: other os error info: caused by: A certificate chain processed, but terminated in a root certificate which is not trusted by the trust provider. (os error -2146762487)

Looks like I have to register some certificate.