Minimal versions (#336)

* get libgit2-sys working with its minimal-versions

* get git2 working with its minimal-versions

Author: Eh2406

Cargo.toml

@@ -35,8 +35,9 @@ openssl-probe = { version = "0.1", optional = true }
 docopt = "1.0"
 serde = "1.0"
 serde_derive = "1.0"
-time = "0.1"
-tempdir = "0.3"
+time = "0.1.39"
+tempdir = "0.3.7"
+thread-id = "3.3.0" # remove when we work with minimal-versions without it
 
 [features]
 unstable = []

libgit2-sys/Cargo.toml

@@ -23,7 +23,7 @@ libz-sys = "1.0.18"
 
 [build-dependencies]
 pkg-config = "0.3"
-cmake = "0.1.2"
+cmake = "0.1.24"
 cc = "1.0"
 
 [target.'cfg(unix)'.dependencies]