update dependencies

Cargo.lock

@@ -39,12 +39,6 @@ dependencies = [
  "once_cell",
 ]
 
-[[package]]
-name = "cc"
-version = "1.0.67"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e3c69b077ad434294d3ce9f1f6143a2a4b89a8a2d54ef813d85003a4fd1137fd"
-
 [[package]]
 name = "cfg-if"
 version = "1.0.0"
@@ -106,28 +100,26 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-epoch"
-version = "0.9.2"
+version = "0.9.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d60ab4a8dba064f2fbb5aa270c28da5cf4bbd0e72dae1140a6b0353a779dbe00"
+checksum = "2584f639eb95fea8c798496315b297cf81b9b58b6d30ab066a75455333cf4b12"
 dependencies = [
  "cfg-if",
  "crossbeam-utils",
  "lazy_static",
- "loom",
  "memoffset",
  "scopeguard",
 ]
 
 [[package]]
 name = "crossbeam-utils"
-version = "0.8.2"
+version = "0.8.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bae8f328835f8f5a6ceb6a7842a7f2d0c03692adb5c889347235d59194731fe3"
+checksum = "e7e9d99fa91428effe99c5c6d4634cdeba32b8cf784fc428a2a687f61a952c49"
 dependencies = [
  "autocfg",
  "cfg-if",
  "lazy_static",
- "loom",
 ]
 
 [[package]]
@@ -194,19 +186,6 @@ dependencies = [
  "xdg-mime",
 ]
 
-[[package]]
-name = "generator"
-version = "0.6.23"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8cdc09201b2e8ca1b19290cf7e65de2246b8e91fb6874279722189c4de7b94dc"
-dependencies = [
- "cc",
- "libc",
- "log",
- "rustc_version",
- "winapi",
-]
-
 [[package]]
 name = "getrandom"
 version = "0.2.2"
@@ -298,17 +277,6 @@ dependencies = [
  "cfg-if",
 ]
 
-[[package]]
-name = "loom"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d44c73b4636e497b4917eb21c33539efa3816741a2d3ff26c6316f1b529481a4"
-dependencies = [
- "cfg-if",
- "generator",
- "scoped-tls",
-]
-
 [[package]]
 name = "memchr"
 version = "2.3.4"
@@ -363,9 +331,9 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.5.2"
+version = "1.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "13bd41f508810a131401606d54ac32a467c97172d74ba7662562ebba5ad07fa0"
+checksum = "10acf907b94fc1b1a152d08ef97e7759650268cf986bf127f387e602b02c7e5a"
 
 [[package]]
 name = "os_str_bytes"
@@ -459,15 +427,6 @@ dependencies = [
  "redox_syscall",
 ]
 
-[[package]]
-name = "rustc_version"
-version = "0.2.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a"
-dependencies = [
- "semver",
-]
-
 [[package]]
 name = "ryu"
 version = "1.0.5"
@@ -483,33 +442,12 @@ dependencies = [
  "winapi-util",
 ]
 
-[[package]]
-name = "scoped-tls"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ea6a9290e3c9cf0f18145ef7ffa62d68ee0bf5fcd651017e586dc7fd5da448c2"
-
 [[package]]
 name = "scopeguard"
 version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
 
-[[package]]
-name = "semver"
-version = "0.9.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1d7eb9ef2c18661902cc47e535f9bc51b78acd254da71d375c2f6720d9a40403"
-dependencies = [
- "semver-parser",
-]
-
-[[package]]
-name = "semver-parser"
-version = "0.7.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
-
 [[package]]
 name = "smartstring"
 version = "0.2.6"