Merge branch 'rust_build_script_v3' into additional_rust_test_fixes

diff --cc configure.ac
Simple merge

diff --cc src/rust/crypto/Cargo.toml
index 08b0832c94866c83e925a32f307f8ddbdb11bd4a,9d302ee3ba85e00b1b4b22cc47d03609416de822..869e0d62566e04933014cb299c17bf6608b7a005
--- 1/src/rust/crypto/Cargo.toml
--- 2/src/rust/crypto/Cargo.toml
+++ b/src/rust/crypto/Cargo.toml
@@@ -25,4 -26,4 +26,3 @@@ rand = { version = "=0.5.0-pre.2", defa
  rand_core = { version = "=0.2.0-pre.0", default-features = false }
  
  [features]
- 
 -testing = ["tor_log/testing"]