add crossbeam_channel

Cargo.lock

@@ -143,6 +143,26 @@ dependencies = [
  "cfg-if 1.0.0",
 ]
 
+[[package]]
+name = "crossbeam-channel"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "06ed27e177f16d65f0f0c22a213e17c696ace5dd64b14258b52f9417ccb52db4"
+dependencies = [
+ "cfg-if 1.0.0",
+ "crossbeam-utils",
+]
+
+[[package]]
+name = "crossbeam-utils"
+version = "0.8.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d82cfc11ce7f2c3faef78d8a684447b40d503d9681acebed6cb728d45940c4db"
+dependencies = [
+ "cfg-if 1.0.0",
+ "lazy_static",
+]
+
 [[package]]
 name = "cstr-argument"
 version = "0.1.1"
@@ -506,19 +526,6 @@ dependencies = [
  "winapi",
 ]
 
-[[package]]
-name = "nix"
-version = "0.21.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5c3728fec49d363a50a8828a190b379a446cc5cf085c06259bbbeb34447e4ec7"
-dependencies = [
- "bitflags",
- "cc",
- "cfg-if 1.0.0",
- "libc",
- "memoffset",
-]
-
 [[package]]
 name = "nix"
 version = "0.22.0"
@@ -576,7 +583,7 @@ version = "0.1.0"
 dependencies = [
  "anyhow",
  "caps",
- "nix 0.22.0",
+ "nix",
  "quickcheck",
  "serde",
  "serde_json",
@@ -651,7 +658,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "059a34f111a9dee2ce1ac2826a68b24601c4298cfeb1a587c3cb493d5ab46f52"
 dependencies = [
  "libc",
- "nix 0.21.0",
+ "nix",
 ]
 
 [[package]]
@@ -1053,13 +1060,14 @@ dependencies = [
  "cgroups",
  "chrono",
  "clap",
+ "crossbeam-channel",
  "dbus",
  "fastrand",
  "futures",
  "libc",
  "log",
  "mio",
- "nix 0.22.0",
+ "nix",
  "oci_spec",
  "once_cell",
  "prctl",

Cargo.toml

@@ -35,6 +35,7 @@ systemd = { version = "0.8", default-features = false, optional = true }
 dbus = "0.9.2"
 tabwriter = "1"
 fastrand = "1.4.1"
+crossbeam-channel = "0.5"
 
 [dev-dependencies]
 oci_spec = { version = "0.1.0", path = "./oci_spec", features = ["proptests"] }