deps: use crossbeam-channel instead of chan

This also drops an ancient rand 0.3 dependency.

6 files changed, 223 insertions, 119 deletions

diff --git a/Cargo.lock b/Cargo.lock
index 84a20ac..e8714c1 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,49 +1,79 @@
 [[package]]
 name = "aho-corasick"
-version = "0.6.4"
+version = "0.6.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "memchr 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
+name = "arrayvec"
+version = "0.4.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "nodrop 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "bitflags"
-version = "1.0.3"
+version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "byteorder"
-version = "1.2.2"
+version = "1.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "cfg-if"
-version = "0.1.3"
+version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
-name = "chan"
-version = "0.1.21"
+name = "cloudabi"
+version = "0.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "rand 0.3.22 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
-name = "cloudabi"
-version = "0.0.3"
+name = "crossbeam-channel"
+version = "0.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bitflags 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-epoch 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-utils 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "smallvec 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
+name = "crossbeam-epoch"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "arrayvec 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-utils 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memoffset 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "scopeguard 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "crossbeam-utils"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
 name = "csv"
-version = "1.0.0"
+version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "csv-core 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.54 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.75 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -59,19 +89,19 @@ name = "csv-index"
 version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "byteorder 1.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "csv 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "byteorder 1.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "csv 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "docopt"
-version = "1.0.0"
+version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.54 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 1.0.54 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.75 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.75 (registry+https://github.com/rust-lang/crates.io-index)",
  "strsim 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -80,9 +110,9 @@ name = "filetime"
 version = "0.1.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cfg-if 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.40 (registry+https://github.com/rust-lang/crates.io-index)",
- "redox_syscall 0.1.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_syscall 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -90,7 +120,7 @@ name = "fuchsia-zircon"
 version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bitflags 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "fuchsia-zircon-sys 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -101,20 +131,32 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "lazy_static"
-version = "1.0.0"
+version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "version_check 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
+]
 
 [[package]]
 name = "libc"
-version = "0.2.40"
+version = "0.2.43"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
+name = "lock_api"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "owning_ref 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "scopeguard 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "log"
-version = "0.4.1"
+version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cfg-if 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -122,12 +164,22 @@ name = "memchr"
 version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.40 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
+name = "memoffset"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "nodrop"
+version = "0.1.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
 name = "num-traits"
-version = "0.2.4"
+version = "0.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -135,12 +187,40 @@ name = "num_cpus"
 version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.40 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "owning_ref"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "stable_deref_trait 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "parking_lot"
+version = "0.6.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "lock_api 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot_core 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "parking_lot_core"
+version = "0.2.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "smallvec 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "proc-macro2"
-version = "0.3.8"
+version = "0.4.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -157,30 +237,20 @@ dependencies = [
 
 [[package]]
 name = "quote"
-version = "0.5.2"
+version = "0.6.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 0.4.13 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "rand"
-version = "0.3.22"
+version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.40 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "rand"
-version = "0.4.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.40 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -190,9 +260,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cloudabi 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.40 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_core 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -202,50 +272,68 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "redox_syscall"
-version = "0.1.37"
+version = "0.1.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "regex"
-version = "1.0.0"
+version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "aho-corasick 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "aho-corasick 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "memchr 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex-syntax 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "thread_local 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex-syntax 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "utf8-ranges 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "regex-syntax"
-version = "0.6.0"
+version = "0.6.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "ucd-util 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
+name = "scopeguard"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
 name = "serde"
-version = "1.0.54"
+version = "1.0.75"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "serde_derive"
-version = "1.0.54"
+version = "1.0.75"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "proc-macro2 0.4.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 0.6.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.14.9 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "smallvec"
+version = "0.6.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 0.13.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unreachable 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
+name = "stable_deref_trait"
+version = "1.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
 name = "streaming-stats"
 version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "num-traits 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -255,29 +343,28 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "syn"
-version = "0.13.9"
+version = "0.14.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 0.4.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 0.6.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "tabwriter"
-version = "1.0.4"
+version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "unicode-width 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-width 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "thread_local"
-version = "0.3.5"
+version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "unreachable 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -295,7 +382,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "unicode-width"
-version = "0.1.4"
+version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -317,13 +404,18 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
+name = "version_check"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
 name = "void"
 version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "winapi"
-version = "0.3.4"
+version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -344,68 +436,80 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 name = "xsv"
 version = "0.13.0"
 dependencies = [
- "byteorder 1.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "chan 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
- "csv 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "byteorder 1.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-channel 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "csv 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "csv-index 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "docopt 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "docopt 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "filetime 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "num_cpus 1.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "quickcheck 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.54 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 1.0.54 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.75 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.75 (registry+https://github.com/rust-lang/crates.io-index)",
  "streaming-stats 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "tabwriter 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tabwriter 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "threadpool 1.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
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diff --git a/Cargo.toml b/Cargo.toml
index 45a79f6..e48e11b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -29,7 +29,7 @@ opt-level = 3
 
 [dependencies]
 byteorder = "1"
-chan = "0.1"
+crossbeam-channel = "0.2.4"
 csv = "1"
 csv-index = "0.1.5"
 docopt = "1"
diff --git a/src/cmd/frequency.rs b/src/cmd/frequency.rs
index 13c3ca6..4d99a2f 100644
--- a/src/cmd/frequency.rs
+++ b/src/cmd/frequency.rs
@@ -1,7 +1,7 @@
 use std::fs;
 use std::io;
 
-use chan;
+use channel;
 use csv;
 use stats::{Frequencies, merge_all};
 use threadpool::ThreadPool;
@@ -149,7 +149,7 @@ impl Args {
         let nchunks = util::num_of_chunks(idx.count() as usize, chunk_size);
 
         let pool = ThreadPool::new(self.njobs());
-        let (send, recv) = chan::sync(0);
+        let (send, recv) = channel::bounded(0);
         for i in 0..nchunks {
             let (send, args, sel) = (send.clone(), self.clone(), sel.clone());
             pool.execute(move || {
@@ -160,7 +160,7 @@ impl Args {
             });
         }
         drop(send);
-        Ok((headers, merge_all(recv.iter()).unwrap()))
+        Ok((headers, merge_all(recv).unwrap()))
     }
 
     fn ftables<I>(&self, sel: &Selection, it: I) -> CliResult<FTables>
diff --git a/src/cmd/split.rs b/src/cmd/split.rs
index ce1c71d..0e597ee 100644
--- a/src/cmd/split.rs
+++ b/src/cmd/split.rs
@@ -2,7 +2,7 @@ use std::fs;
 use std::io;
 use std::path::Path;
 
-use chan;
+use channel;
 use csv;
 use threadpool::ThreadPool;
 
@@ -98,11 +98,10 @@ impl Args {
         let nchunks = util::num_of_chunks(
             idx.count() as usize, self.flag_size);
         let pool = ThreadPool::new(self.njobs());
-        let wg = chan::WaitGroup::new();
+        let (tx, rx) = channel::bounded::<()>(0);
         for i in 0..nchunks {
-            wg.add(1);
             let args = self.clone();
-            let wg = wg.clone();
+            let tx = tx.clone();
             pool.execute(move || {
                 let conf = args.rconfig();
                 let mut idx = conf.indexed().unwrap().unwrap();
@@ -117,10 +116,11 @@ impl Args {
                     wtr.write_byte_record(&row).unwrap();
                 }
                 wtr.flush().unwrap();
-                wg.done();
+                drop(tx);
             });
         }
-        wg.wait();
+        drop(tx);
+        rx.recv();
         Ok(())
     }
 
diff --git a/src/cmd/stats.rs b/src/cmd/stats.rs
index b7841d8..64572a7 100644
--- a/src/cmd/stats.rs
+++ b/src/cmd/stats.rs
@@ -6,7 +6,7 @@ use std::io;
 use std::iter::{FromIterator, repeat};
 use std::str::{self, FromStr};
 
-use chan;
+use channel;
 use csv;
 use stats::{Commute, OnlineStats, MinMax, Unsorted, merge_all};
 use threadpool::ThreadPool;
@@ -139,7 +139,7 @@ impl Args {
         let nchunks = util::num_of_chunks(idx.count() as usize, chunk_size);
 
         let pool = ThreadPool::new(self.njobs());
-        let (send, recv) = chan::sync(0);
+        let (send, recv) = channel::bounded(0);
         for i in 0..nchunks {
             let (send, args, sel) = (send.clone(), self.clone(), sel.clone());
             pool.execute(move || {
@@ -150,7 +150,7 @@ impl Args {
             });
         }
         drop(send);
-        Ok((headers, merge_all(recv.iter()).unwrap_or_else(Vec::new)))
+        Ok((headers, merge_all(recv).unwrap_or_else(Vec::new)))
     }
 
     fn stats_to_records(&self, stats: Vec<Stats>) -> Vec<csv::StringRecord> {
@@ -160,7 +160,7 @@ impl Args {
         let pool = ThreadPool::new(self.njobs());
         let mut results = vec![];
         for mut stat in stats.into_iter() {
-            let (send, recv) = chan::sync(0);
+            let (send, recv) = channel::bounded(0);
             results.push(recv);
             pool.execute(move || { send.send(stat.to_record()); });
         }
diff --git a/src/main.rs b/src/main.rs
index c1465a3..64b3edc 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,5 +1,5 @@
 extern crate byteorder;
-extern crate chan;
+extern crate crossbeam_channel as channel;
 extern crate csv;
 extern crate csv_index;
 extern crate docopt;