diff --git a/tools/agent-ctl/Cargo.lock b/tools/agent-ctl/Cargo.lock
index 9c61b93bd4..01c7e4aaa2 100644
--- a/tools/agent-ctl/Cargo.lock
+++ b/tools/agent-ctl/Cargo.lock
@@ -146,14 +146,13 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "cgroups-rs"
-version = "0.2.1"
+version = "0.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "348eb6d8e20a9f5247209686b7d0ffc2f4df40ddcb95f9940de55a94a655b3f5"
+checksum = "d4cec688ee0fcd143ffd7893ce2c9857bfc656eb1f2a27202244b72f08f5f8ed"
 dependencies = [
  "libc",
  "log",
- "nix 0.18.0",
- "procinfo",
+ "nix 0.20.0",
  "regex",
 ]
 
@@ -484,9 +483,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.79"
+version = "0.2.93"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2448f6066e80e3bfc792e9c98bf705b4b0fc6e8ef5b43e5889aff0eaa9c58743"
+checksum = "9385f66bf6105b241aa65a61cb923ef20efc665cb9f9bb50ac2f0c4b7f378d41"
 
 [[package]]
 name = "log"
@@ -585,18 +584,6 @@ dependencies = [
  "void",
 ]
 
-[[package]]
-name = "nix"
-version = "0.18.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "83450fe6a6142ddd95fb064b746083fc4ef1705fe81f64a64e1d4b39f54a1055"
-dependencies = [
- "bitflags",
- "cc",
- "cfg-if 0.1.10",
- "libc",
-]
-
 [[package]]
 name = "nix"
 version = "0.19.1"
@@ -610,10 +597,16 @@ dependencies = [
 ]
 
 [[package]]
-name = "nom"
-version = "2.2.1"
+name = "nix"
+version = "0.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cf51a729ecf40266a2368ad335a5fdde43471f545a967109cd62146ecf8b66ff"
+checksum = "fa9b4819da1bc61c0ea48b63b7bc8604064dd43013e7cc325df098d49cd7c18a"
+dependencies = [
+ "bitflags",
+ "cc",
+ "cfg-if 1.0.0",
+ "libc",
+]
 
 [[package]]
 name = "ntapi"
@@ -738,7 +731,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "059a34f111a9dee2ce1ac2826a68b24601c4298cfeb1a587c3cb493d5ab46f52"
 dependencies = [
  "libc",
- "nix 0.18.0",
+ "nix 0.19.1",
 ]
 
 [[package]]
@@ -771,18 +764,6 @@ dependencies = [
  "unicode-xid 0.2.1",
 ]
 
-[[package]]
-name = "procinfo"
-version = "0.4.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6ab1427f3d2635891f842892dda177883dca0639e05fe66796a62c9d2f23b49c"
-dependencies = [
- "byteorder",
- "libc",
- "nom",
- "rustc_version",
-]
-
 [[package]]
 name = "prost"
 version = "0.5.0"
@@ -977,15 +958,6 @@ version = "0.1.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6e3bad0ee36814ca07d7968269dd4b7ec89ec2da10c4bb613928d3077083c232"
 
-[[package]]
-name = "rustc_version"
-version = "0.2.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a"
-dependencies = [
- "semver",
-]
-
 [[package]]
 name = "rustjail"
 version = "0.1.0"
@@ -1038,21 +1010,6 @@ 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 = "serde"
 version = "1.0.114"