Cargo Build Error - File Missing - rust

Question

Trying to compile the example given at https://github.com/gifnksm/twitter-api-rs on a 32bit Windows 10 machine, I get the following error - any ideas as to what to do?
(I had a previous issue with the curl-sys compilation, which required the environment variable CFLAGS setting to '-mmmx -msse' )
D:\Proj\Rust\projects\twittest>cargo build --verbose
Fresh rustc-serialize v0.3.16
Fresh pkg-config v0.3.5
Fresh libc v0.1.10
Fresh winapi v0.2.2
Fresh winapi-build v0.1.1
Fresh matches v0.1.2
Fresh log v0.3.2
Fresh url v0.2.37
Fresh advapi32-sys v0.1.2
Fresh kernel32-sys v0.1.4
Fresh rand v0.3.11
Fresh gcc v0.3.13
Fresh time v0.1.32
Compiling curl-sys v0.1.25
Running `D:\Proj\Rust\projects\twittest\target\debug\build\curl-sys-865cd014190c57f1\build-script-build`
Fresh libz-sys v0.1.8
Fresh rust-crypto v0.2.31
failed to run custom build command for `curl-sys v0.1.25`
Process didn't exit successfully: `D:\Proj\Rust\projects\twittest\target\debug\build\curl-sys-865cd014190c57f1\build-script-build` (exit code: 101)
--- stdout
cargo:rustc-link-search=D:\Proj\Rust\projects\twittest\target\debug\build\curl-sys-865cd014190c57f1\out/lib
cargo:rustc-link-lib=static=curl
cargo:root=D:\Proj\Rust\projects\twittest\target\debug\build\curl-sys-865cd014190c57f1\out
cargo:include=D:\Proj\Rust\projects\twittest\target\debug\build\curl-sys-865cd014190c57f1\out/include
cargo:rustc-flags=-l ws2_32
curlsys running: "sh" "-c" "/c/Users/Me/.cargo/registry/src/github.com-121aea75f9ef2ce2/curl-sys-0.1.25/curl/configure --with-winssl --enable-static=yes --enable-shared=no --enable-optimize --prefix=D:/Proj/Rust/projects/twittest/target/debug/build/curl-sys-865cd014190c57f1/out --without-librtmp --without-libidn --without-libssh2 --without-nghttp2 --disable-ldap --disable-ldaps --disable-ftp --disable-rtsp --disable-dict --disable-telnet --disable-tftp --disable-pop3 --disable-imap --disable-smtp --disable-gopher --disable-manual"
--- stderr
thread '<main>' panicked at 'cmd.status() return the error The system cannot find the file specified.
(os error 2)', C:\Users\Me\.cargo\registry\src\github.com-121aea75f9ef2ce2\curl-sys-0.1.25\build.rs:134
I am using http://mingw-w64.org but I suspect the problem lies with the 32bit build parameters in the library configure sh files (possibly!)

Answer 1

My guess is that the --prefix=D:/Proj/... part is wrong, and should be --prefix=/d/Proj/....
In https://github.com/carllerche/curl-rust/blob/master/curl-sys/build.rs#L110 , there is a hardcoded replace("C:\\", "/c/") but no handling of other unit labels.
In other words, it seems curl-rust currently does not support building when your project root is not on C:. Would it be possible to move your projects directory, or at least the code for this project?