Add metrics dependency

Cargo.lock

@@ -17,6 +17,17 @@ version = "0.4.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "739f4a8db6605981345c5654f3a85b056ce52f37a39d34da03f25bf2151ea16e"
 
+[[package]]
+name = "ahash"
+version = "0.7.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fcb51a0695d8f838b1ee009b3fbf66bda078cd64590202a864a8f3e8c4315c47"
+dependencies = [
+ "getrandom 0.2.3",
+ "once_cell",
+ "version_check",
+]
+
 [[package]]
 name = "aho-corasick"
 version = "0.7.18"
@@ -570,6 +581,31 @@ dependencies = [
  "autocfg",
 ]
 
+[[package]]
+name = "metrics"
+version = "0.17.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a00f42f354a2ed4894db863b3a4db47aef2d2e4435b937221749bd37a8a7aaa8"
+dependencies = [
+ "ahash 0.7.6",
+ "metrics-macros",
+ "proc-macro-hack",
+]
+
+[[package]]
+name = "metrics-macros"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "caa72e4a3d157986dd2565c82ecbddcc23941513669a3766b938f6b72eb87f3f"
+dependencies = [
+ "lazy_static",
+ "proc-macro-hack",
+ "proc-macro2",
+ "quote",
+ "regex",
+ "syn",
+]
+
 [[package]]
 name = "nix"
 version = "0.17.0"
@@ -1198,6 +1234,7 @@ dependencies = [
  "indicatif",
  "itertools 0.9.0",
  "log",
+ "metrics",
  "nix 0.17.0",
  "num_cpus",
  "rayon",

yama/Cargo.toml

@@ -39,7 +39,7 @@ rusqlite = "0.24.2"
 chrono = "0.4.19"
 rustyline = "7.1.0"
 derivative = "2.2.0"
-
+metrics = "0.17.0"
 
 [dev-dependencies]
 temp-dir = "0.1.11"