message: update min dependencies to build with minimal-versions
  Big thanks to for doing most of the work!
  Thanks to for pointing out that we could finish it.
diff: @@ -27,7 +27,7 @@ failure = "0.1.1"
  filetime = "0.2"
  flate2 = "1.0"
  fs2 = "0.4"
  -git2 = "0.7.0"
  +git2 = "0.7.2"
  git2-curl = "0.8.1"
  glob = "0.2.11"
  hex = "0.3"
  @@ -37,7 +37,6 @@ lazy_static = "1.0.0"
  jobserver = "0.1.9"
  lazycell = "1.0"
  libc = "0.2"
  -libgit2-sys = "0.7.1"
  log = "0.4"
  num_cpus = "1.0"
  rustfix = "0.4"
  @@ -55,6 +54,9 @@ toml = "0.4.2"
  url = "1.1"
  clap = "2.31.2"
  unicode-width = "0.1.5"
  +libssh2-sys = "0.2.8"
  +libgit2-sys = "0.7.5"
  +gcc = "0.3.23"
  # Not actually needed right now but required to make sure that rls/cargo build
  # with the same set of features in rust-lang/rust
  