diff --git a/rust/Cargo.lock b/rust/Cargo.lock
--- a/rust/Cargo.lock
+++ b/rust/Cargo.lock
@@ -16,9 +16,9 @@
 
 [[package]]
 name = "aho-corasick"
-version = "0.7.15"
+version = "0.7.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7404febffaa47dac81aa44dba71523c9d069b1bdc50a77db41195149e17f68e5"
+checksum = "1e37cfd5e7657ada45f742d6e99ca5788580b5c529dc78faf11ece6dc702656f"
 dependencies = [
  "memchr",
 ]
@@ -33,6 +33,15 @@
 ]
 
 [[package]]
+name = "ansi_term"
+version = "0.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d52a9bb7ec0cf484c551830a7ce27bd20d67eac647e1befb56b0be4ee39a55d2"
+dependencies = [
+ "winapi",
+]
+
+[[package]]
 name = "atty"
 version = "0.2.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -135,26 +144,47 @@
 
 [[package]]
 name = "clap"
-version = "2.33.3"
+version = "2.34.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "37e58ac78573c40708d45522f0d80fa2f01cc4f9b4e2bf749807255454312002"
+checksum = "a0610544180c38b88101fecf2dd634b174a62eef6946f84dfc6a7127512b381c"
 dependencies = [
- "ansi_term",
+ "ansi_term 0.12.1",
  "atty",
  "bitflags",
- "strsim",
- "textwrap",
+ "strsim 0.8.0",
+ "textwrap 0.11.0",
  "unicode-width",
  "vec_map",
 ]
 
 [[package]]
+name = "clap"
+version = "3.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d8c93436c21e4698bacadf42917db28b23017027a4deccb35dbe47a7e7840123"
+dependencies = [
+ "atty",
+ "bitflags",
+ "indexmap",
+ "os_str_bytes",
+ "strsim 0.10.0",
+ "termcolor",
+ "textwrap 0.15.0",
+]
+
+[[package]]
 name = "const_fn"
 version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cd51eab21ab4fd6a3bf889e2d0958c0a6e3a61ad04260325e919e652a2a62826"
 
 [[package]]
+name = "convert_case"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6245d59a3e82a7fc217c5828a6692dbc6dfb63a0c8c90495621f7b9d79704a0e"
+
+[[package]]
 name = "cpufeatures"
 version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -263,12 +293,14 @@
 
 [[package]]
 name = "derive_more"
-version = "0.99.11"
+version = "0.99.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "41cb0e6161ad61ed084a36ba71fbba9e3ac5aee3606fb607fe08da6acbcf3d8c"
+checksum = "4fb810d30a7c1953f91334de7244731fc3f3c10d7fe163338a35b9f640960321"
 dependencies = [
+ "convert_case",
  "proc-macro2",
  "quote",
+ "rustc_version",
  "syn",
 ]
 
@@ -300,7 +332,20 @@
 checksum = "44533bbbb3bb3c1fa17d9f2e4e38bbbaf8396ba82193c4cb1b6445d711445d36"
 dependencies = [
  "atty",
- "humantime",
+ "humantime 1.3.0",
+ "log",
+ "regex",
+ "termcolor",
+]
+
+[[package]]
+name = "env_logger"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0b2cf0344971ee6c64c31be0d530793fba457d322dfec2810c453d0ef228f9c3"
+dependencies = [
+ "atty",
+ "humantime 2.1.0",
  "log",
  "regex",
  "termcolor",
@@ -388,6 +433,12 @@
 ]
 
 [[package]]
+name = "hashbrown"
+version = "0.11.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ab5ef0d4909ef3724cc8cce6ccc8572c5c817592e9285f5464f8e86f8bd3726e"
+
+[[package]]
 name = "hermit-abi"
 version = "0.1.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -409,12 +460,12 @@
  "bitflags",
  "byteorder",
  "bytes-cast",
- "clap",
+ "clap 3.1.6",
  "crossbeam-channel 0.4.4",
  "derive_more",
  "flate2",
  "format-bytes",
- "hashbrown",
+ "hashbrown 0.9.1",
  "home",
  "im-rc",
  "itertools",
@@ -422,7 +473,7 @@
  "libc",
  "log",
  "memmap2",
- "micro-timer",
+ "micro-timer 0.3.1",
  "pretty_assertions",
  "rand 0.8.4",
  "rand_distr",
@@ -443,7 +494,7 @@
 dependencies = [
  "cpython",
  "crossbeam-channel 0.4.4",
- "env_logger",
+ "env_logger 0.7.1",
  "hg-core",
  "libc",
  "log",
@@ -470,6 +521,12 @@
 ]
 
 [[package]]
+name = "humantime"
+version = "2.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9a3a5bfb195931eeb336b2a7b4d761daec841b97f947d34394601737a7bba5e4"
+
+[[package]]
 name = "im-rc"
 version = "15.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -484,6 +541,16 @@
 ]
 
 [[package]]
+name = "indexmap"
+version = "1.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "282a6247722caba404c065016bbfa522806e51714c34f5dfc3e4a3a46fcb4223"
+dependencies = [
+ "autocfg",
+ "hashbrown 0.11.2",
+]
+
+[[package]]
 name = "itertools"
 version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -532,11 +599,11 @@
 
 [[package]]
 name = "log"
-version = "0.4.11"
+version = "0.4.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4fabed175da42fed1fa0746b0ea71f412aa9d35e76e95e59b192c64b9dc2bf8b"
+checksum = "51b9bbe6c47d51fc3e1a9b945965946b4c44142ab8792c50835a980d362c2710"
 dependencies = [
- "cfg-if 0.1.10",
+ "cfg-if 1.0.0",
 ]
 
 [[package]]
@@ -547,9 +614,9 @@
 
 [[package]]
 name = "memchr"
-version = "2.3.4"
+version = "2.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0ee1c47aaa256ecabcaea351eae4a9b01ef39ed810004e298d2511ed284b1525"
+checksum = "308cc39be01b73d0d18f82a0e7b2a3df85245f84af96fdddc5d202d27e47b86a"
 
 [[package]]
 name = "memmap2"
@@ -576,7 +643,17 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2620153e1d903d26b72b89f0e9c48d8c4756cba941c185461dddc234980c298c"
 dependencies = [
- "micro-timer-macros",
+ "micro-timer-macros 0.3.1",
+ "scopeguard",
+]
+
+[[package]]
+name = "micro-timer"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5de32cb59a062672560d6f0842c4aa7714727457b9fe2daf8987d995a176a405"
+dependencies = [
+ "micro-timer-macros 0.4.0",
  "scopeguard",
 ]
 
@@ -593,6 +670,18 @@
 ]
 
 [[package]]
+name = "micro-timer-macros"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cee948b94700125b52dfb68dd17c19f6326696c1df57f92c05ee857463c93ba1"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "scopeguard",
+ "syn",
+]
+
+[[package]]
 name = "miniz_oxide"
 version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -639,6 +728,15 @@
 checksum = "624a8340c38c1b80fd549087862da4ba43e08858af025b236e509b6649fc13d5"
 
 [[package]]
+name = "os_str_bytes"
+version = "6.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e22443d1643a904602595ba1cd8f7d896afe56d26712531c5ff73a15b2fbf64"
+dependencies = [
+ "memchr",
+]
+
+[[package]]
 name = "output_vt100"
 version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -671,7 +769,7 @@
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3f81e1644e1b54f5a68959a29aa86cde704219254669da328ecfdf6a1f09d427"
 dependencies = [
- "ansi_term",
+ "ansi_term 0.11.0",
  "ctor",
  "difference",
  "output_vt100",
@@ -853,21 +951,20 @@
 
 [[package]]
 name = "regex"
-version = "1.4.2"
+version = "1.5.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "38cf2c13ed4745de91a5eb834e11c00bcc3709e773173b2ce4c56c9fbde04b9c"
+checksum = "1a11647b6b25ff05a515cb92c365cec08801e83423a235b51e231e1808747286"
 dependencies = [
  "aho-corasick",
  "memchr",
  "regex-syntax",
- "thread_local",
 ]
 
 [[package]]
 name = "regex-syntax"
-version = "0.6.21"
+version = "0.6.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3b181ba2dcf07aaccad5448e8ead58db5b742cf85dfe035e2227f137a539a189"
+checksum = "f497285884f3fcff424ffc933e56d7cbca511def0c9831a7f9b5f6153e3cc89b"
 
 [[package]]
 name = "remove_dir_all"
@@ -884,20 +981,29 @@
 dependencies = [
  "atty",
  "chrono",
- "clap",
+ "clap 2.34.0",
  "derive_more",
- "env_logger",
+ "env_logger 0.9.0",
  "format-bytes",
  "hg-core",
  "home",
  "lazy_static",
  "log",
- "micro-timer",
+ "micro-timer 0.4.0",
  "regex",
  "users",
 ]
 
 [[package]]
+name = "rustc_version"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bfa0f585226d2e68097d4f95d113b15b83a82e819ab25717ec0590d9584ef366"
+dependencies = [
+ "semver",
+]
+
+[[package]]
 name = "same-file"
 version = "1.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -913,6 +1019,12 @@
 checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
 
 [[package]]
+name = "semver"
+version = "1.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a4a3381e03edd24287172047536f20cabde766e2cd3e65e6b00fb3af51c4f38d"
+
+[[package]]
 name = "sha-1"
 version = "0.9.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -954,6 +1066,12 @@
 checksum = "8ea5119cdb4c55b55d432abb513a0429384878c15dde60cc77b1c99de1a95a6a"
 
 [[package]]
+name = "strsim"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
+
+[[package]]
 name = "syn"
 version = "1.0.54"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -997,13 +1115,10 @@
 ]
 
 [[package]]
-name = "thread_local"
-version = "1.0.1"
+name = "textwrap"
+version = "0.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d40c6d1b69745a6ec6fb1ca717914848da4b44ae29d9b3080cbee91d72a69b14"
-dependencies = [
- "lazy_static",
-]
+checksum = "b1141d4d61095b28419e22cb0bbf02755f5e54e0526f97f1e3d1d160e60885fb"
 
 [[package]]
 name = "time"
@@ -1035,9 +1150,9 @@
 
 [[package]]
 name = "unicode-width"
-version = "0.1.8"
+version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9337591893a19b88d8d87f2cec1e73fad5cdfd10e5a6f349f498ad6ea2ffb1e3"
+checksum = "3ed742d4ea2bd1176e236172c8429aaf54486e7ac098db29ffe6529e0ce50973"
 
 [[package]]
 name = "unicode-xid"
diff --git a/rust/rhg/Cargo.toml b/rust/rhg/Cargo.toml
--- a/rust/rhg/Cargo.toml
+++ b/rust/rhg/Cargo.toml
@@ -8,16 +8,16 @@
 edition = "2018"
 
 [dependencies]
-atty = "0.2"
+atty = "0.2.14"
 hg-core = { path = "../hg-core"}
 chrono = "0.4.19"
-clap = "2.33.1"
-derive_more = "0.99"
+clap = "2.34.0"
+derive_more = "0.99.17"
 home = "0.5.3"
 lazy_static = "1.4.0"
-log = "0.4.11"
-micro-timer = "0.3.1"
-regex = "1.3.9"
-env_logger = "0.7.1"
+log = "0.4.14"
+micro-timer = "0.4.0"
+regex = "1.5.5"
+env_logger = "0.9.0"
 format-bytes = "0.3.0"
 users = "0.11.0"