diff --git a/rtiow/Cargo.lock b/rtiow/Cargo.lock
index 525ce1b..ea6e3c7 100644
--- a/rtiow/Cargo.lock
+++ b/rtiow/Cargo.lock
@@ -1,3 +1,5 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
 [[package]]
 name = "MacTypes-sys"
 version = "2.1.0"
@@ -1386,7 +1388,7 @@ dependencies = [
 
 [[package]]
 name = "prometheus"
-version = "0.5.0"
+version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1397,7 +1399,7 @@ dependencies = [
  "protobuf 2.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "quick-error 1.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "reqwest 0.9.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "spin 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "spin 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1669,7 +1671,7 @@ dependencies = [
  "lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "num_cpus 1.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "prometheus 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "prometheus 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "rayon 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.88 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1853,7 +1855,7 @@ dependencies = [
 
 [[package]]
 name = "spin"
-version = "0.4.10"
+version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -2629,7 +2631,7 @@ dependencies = [
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 "checksum proc-macro2 0.4.27 (registry+https://github.com/rust-lang/crates.io-index)" = "4d317f9caece796be1980837fd5cb3dfec5613ebdb04ad0956deea83ce168915"
 "checksum procinfo 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "f42e8578852a3306838981aedad8c5642ba794929aa12af0c9eb6c072b77af6c"
-"checksum prometheus 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "48e3f33ff50a88c73ad8458fa6c22931aa7a6e19bb4a95d62816618c153b3f02"
+"checksum prometheus 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5567486d5778e2c6455b1b90ff1c558f29e751fc018130fa182e15828e728af1"
 "checksum protobuf 2.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d82d117bc7565ce6be0150159251c9b1eeec7b129f5a2aa86e10acb5970de1cb"
 "checksum quick-error 1.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "9274b940887ce9addde99c4eee6b5c44cc494b182b97e73dc8ffdcb3397fd3f0"
 "checksum quote 0.6.11 (registry+https://github.com/rust-lang/crates.io-index)" = "cdd8e04bd9c52e0342b406469d494fcb033be4bdbe5c606016defbb1681411e1"
@@ -2680,7 +2682,7 @@ dependencies = [
 "checksum slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "c111b5bd5695e56cffe5129854aa230b39c93a305372fdbb2668ca2394eea9f8"
 "checksum smallvec 0.6.9 (registry+https://github.com/rust-lang/crates.io-index)" = "c4488ae950c49d403731982257768f48fada354a5203fe81f9bb6f43ca9002be"
 "checksum socket2 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)" = "c4d11a52082057d87cb5caa31ad812f4504b97ab44732cd8359df2e9ff9f48e7"
-"checksum spin 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)" = "ceac490aa12c567115b40b7b7fceca03a6c9d53d5defea066123debc83c5dc1f"
+"checksum spin 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6e63cff320ae2c57904679ba7cb63280a3dc4613885beafb148ee7bf9aa9042d"
 "checksum stable_deref_trait 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "dba1a27d3efae4351c8051072d619e3ade2820635c3958d826bfea39d59b54c8"
 "checksum stderrlog 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "61dc66b7ae72b65636dbf36326f9638fb3ba27871bb737a62e2c309b87d91b70"
 "checksum string 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "b639411d0b9c738748b5397d5ceba08e648f4f1992231aa859af1a017f31f60b"