Update rand dependency to 0.7

Cargo.toml

@@ -22,18 +22,17 @@ memmap = "0.7"
 ndarray = "0.13"
 ndarray-rand = "0.11"
 num_cpus = "1"
-rand = "0.6"
-rand_core = "0.4"
-rand_xorshift = "0.1"
+rand = "0.7"
+rand_core = "0.5"
+rand_xorshift = "0.2"
 serde = { version = "1", features = ["derive"] }
 stdinout = "0.4"
 toml = "0.5"
-zipf = "5"
+zipf = "6"
 
 [build-dependencies]
 git2 = "0.10"
 
 [dev-dependencies]
 lazy_static = "1"
-maplit = "1"
-rand_xorshift = "0.1"
+maplit = "1"

src/subcommands/deps.rs

@@ -15,7 +15,7 @@ use finalfrontier::{
     SimpleVocabConfig, SubwordVocab, Vocab, VocabBuilder, WriteModelBinary, SGD,
 };
 use finalfusion::prelude::VocabWrap;
-use rand::{FromEntropy, Rng};
+use rand::{Rng, SeedableRng};
 use rand_xorshift::XorShiftRng;
 use serde::Serialize;
 use stdinout::OrExit;

src/subcommands/skipgram.rs

@@ -12,7 +12,7 @@ use finalfrontier::{
     SubwordVocab, Vocab, VocabBuilder, WriteModelBinary, SGD,
 };
 use finalfusion::prelude::VocabWrap;
-use rand::{FromEntropy, Rng};
+use rand::{Rng, SeedableRng};
 use rand_xorshift::XorShiftRng;
 use serde::Serialize;
 use stdinout::OrExit;

src/train_model.rs

@@ -276,7 +276,7 @@ pub trait NegativeSamples {
 mod tests {
     use finalfusion::subword::FinalfusionHashIndexer;
     use ndarray::Array2;
-    use rand::FromEntropy;
+    use rand::SeedableRng;
     use rand_xorshift::XorShiftRng;
 
     use super::TrainModel;

src/util.rs

@@ -1,4 +1,4 @@
-use rand::{FromEntropy, SeedableRng};
+use rand::SeedableRng;
 use rand_core::{self, RngCore};
 use serde::Serialize;
 
@@ -55,7 +55,7 @@ where
 
 impl<R> Clone for ReseedOnCloneRng<R>
 where
-    R: RngCore + FromEntropy + SeedableRng,
+    R: RngCore + SeedableRng,
 {
     fn clone(&self) -> Self {
         ReseedOnCloneRng(R::from_entropy())
@@ -83,7 +83,7 @@ pub use self::test::*;
 #[cfg(test)]
 mod test {
     use ndarray::{ArrayView, Dimension};
-    use rand::{FromEntropy, SeedableRng};
+    use rand::SeedableRng;
     use rand_core::{self, impls, le, RngCore};
 
     use super::ReseedOnCloneRng;