Remove unstable and test feature flags

Cargo.toml

@@ -18,8 +18,6 @@ chacha = ["solana/chacha"]
 cuda = ["solana/cuda"]
 erasure = ["solana/erasure"]
 ipv6 = ["solana/ipv6", "solana-netutil/ipv6"]
-test = ["solana/test"]
-unstable = ["solana/unstable"]
 
 [dev-dependencies]
 bincode = "1.1.2"

README.md

@@ -134,7 +134,8 @@ Edit `ci/testnet-manager.sh`
 Benchmarking
 ---
 
-First install the nightly build of rustc. `cargo bench` requires unstable features:
+First install the nightly build of rustc. `cargo bench` requires use of the
+unstable features only available in the nightly build.
 
 ```bash
 $ rustup install nightly
@@ -143,7 +144,7 @@ $ rustup install nightly
 Run the benchmarks:
 
 ```bash
-$ cargo +nightly bench --features="unstable"
+$ cargo +nightly bench
 ```
 
 Release Process

benches/append_vec.rs

@@ -1,4 +1,5 @@
-#![cfg_attr(feature = "unstable", feature(test))]
+#![feature(test)]
+
 extern crate rand;
 extern crate test;
 

ci/test-bench.sh

@@ -39,7 +39,7 @@ fi
 
 BENCH_FILE=bench_output.log
 BENCH_ARTIFACT=current_bench_results.log
-_ cargo +nightly bench --features=unstable ${V:+--verbose} \
+_ cargo +nightly bench ${V:+--verbose} \
   -- -Z unstable-options --format=json | tee "$BENCH_FILE"
 
 # Run bpf_loader bench with bpf_c feature enabled

core/Cargo.toml

@@ -18,8 +18,6 @@ chacha = []
 cuda = []
 erasure = []
 ipv6 = ["solana-netutil/ipv6"]
-test = []
-unstable = []
 
 [dependencies]
 bincode = "1.1.2"

core/src/lib.rs

@@ -6,7 +6,6 @@
 //! (see [ThinClient](thin_client/struct.ThinClient.html)) to interact with them.
 //!
 
-#![cfg_attr(feature = "unstable", feature(test))]
 pub mod bank_forks;
 pub mod banking_stage;
 pub mod blob_fetch_stage;

fullnode/Cargo.toml

@@ -28,4 +28,3 @@ chacha = ["solana/chacha"]
 cuda = ["solana/cuda"]
 erasure = ["solana/erasure"]
 ipv6 = ["solana/ipv6"]
-unstable = ["solana/unstable"]