--- a/rust/Cargo.lock	Wed Apr 27 15:47:57 2022 +0200
+++ b/rust/Cargo.lock	Tue Apr 19 12:27:40 2022 +0200
@@ -505,9 +505,9 @@
 
 [[package]]
 name = "libc"
-version = "0.2.81"
+version = "0.2.124"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1482821306169ec4d07f6aca392a4681f66c75c9918aa49641a2595db64053cb"
+checksum = "21a41fed9d98f27ab1c6d161da622a4fa35e8a54a8adc24bbf3ddd0ef70b0e50"
 
 [[package]]
 name = "libm"
@@ -949,6 +949,7 @@
  "micro-timer",
  "regex",
  "users",
+ "which",
 ]
 
 [[package]]
@@ -1151,6 +1152,17 @@
 checksum = "1a143597ca7c7793eff794def352d41792a93c481eb1042423ff7ff72ba2c31f"
 
 [[package]]
+name = "which"
+version = "4.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c4fb54e6113b6a8772ee41c3404fb0301ac79604489467e0a9ce1f3e97c24ae"
+dependencies = [
+ "either",
+ "lazy_static",
+ "libc",
+]
+
+[[package]]
 name = "winapi"
 version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"