diff --git a/Cargo.lock b/Cargo.lock
index 39275cc..93b6969 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -17,7 +17,7 @@ checksum = "372baaa5d3a422d8816b513bcdb2c120078c8614f7ecbcc3baf34a1634bbbe2e"
 dependencies = [
  "abnf",
  "indexmap",
- "itertools",
+ "itertools 0.9.0",
  "pretty",
 ]
 
@@ -399,16 +399,16 @@ dependencies = [
 
 [[package]]
 name = "criterion"
-version = "0.3.3"
+version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "70daa7ceec6cf143990669a04c7df13391d55fb27bd4079d252fca774ba244d8"
+checksum = "1604dafd25fba2fe2d5895a9da139f8dc9b319a5fe5354ca137cbbce4e178d10"
 dependencies = [
  "atty",
  "cast",
  "clap",
  "criterion-plot",
  "csv",
- "itertools",
+ "itertools 0.10.1",
  "lazy_static",
  "num-traits",
  "oorandom",
@@ -425,12 +425,12 @@ dependencies = [
 
 [[package]]
 name = "criterion-plot"
-version = "0.4.3"
+version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e022feadec601fba1649cfa83586381a4ad31c6bf3a9ab7d408118b05dd9889d"
+checksum = "d00996de9f2f7559f7f4dc286073197f83e92256a59ed395f9aac01fe717da57"
 dependencies = [
  "cast",
- "itertools",
+ "itertools 0.10.1",
 ]
 
 [[package]]
@@ -541,7 +541,7 @@ dependencies = [
  "abnf_to_pest",
  "annotate-snippets",
  "hex",
- "itertools",
+ "itertools 0.9.0",
  "lazy_static",
  "once_cell",
  "percent-encoding",
@@ -563,7 +563,7 @@ version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bf6cff1e2ddd03851652e0cde982b01dc877c9fc9da9ba25ad4241a151945f09"
 dependencies = [
- "itertools",
+ "itertools 0.9.0",
  "proc-macro2",
  "quote",
  "syn",
@@ -1183,6 +1183,15 @@ dependencies = [
  "either",
 ]
 
+[[package]]
+name = "itertools"
+version = "0.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "69ddb889f9d0d08a67338271fa9b62996bc788c7796a5c18cf057420aaed5eaf"
+dependencies = [
+ "either",
+]
+
 [[package]]
 name = "itoa"
 version = "0.4.6"
@@ -1191,9 +1200,9 @@ checksum = "dc6f3ad7b9d11a0c00842ff8de1b60ee58661048eb8049ed33c73594f359d7e6"
 
 [[package]]
 name = "js-sys"
-version = "0.3.45"
+version = "0.3.51"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ca059e81d9486668f12d455a4ea6daa600bd408134cd17e3d3fb5a32d1f016f8"
+checksum = "83bdfbace3a0e81a4253f73b49e960b053e396a11012cbd49b9b74d6a2b67062"
 dependencies = [
  "wasm-bindgen",
 ]
@@ -1707,16 +1716,32 @@ checksum = "3831453b3449ceb48b6d9c7ad7c96d5ea673e9b470a1dc578c2ce6521230884c"
 
 [[package]]
 name = "plotters"
-version = "0.2.15"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0d1685fbe7beba33de0330629da9d955ac75bd54f33d7b79f9a895590124f6bb"
+checksum = "32a3fd9ec30b9749ce28cd91f255d569591cdf937fe280c312143e3c4bad6f2a"
 dependencies = [
- "js-sys",
  "num-traits",
+ "plotters-backend",
+ "plotters-svg",
  "wasm-bindgen",
  "web-sys",
 ]
 
+[[package]]
+name = "plotters-backend"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d88417318da0eaf0fdcdb51a0ee6c3bed624333bff8f946733049380be67ac1c"
+
+[[package]]
+name = "plotters-svg"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "521fa9638fa597e1dc53e9412a4f9cefb01187ee1f7413076f9e6749e2885ba9"
+dependencies = [
+ "plotters-backend",
+]
+
 [[package]]
 name = "polling"
 version = "0.1.9"
@@ -1759,9 +1784,9 @@ checksum = "eba180dafb9038b050a4c280019bbedf9f2467b61e5d892dcad585bb57aadc5a"
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.24"
+version = "1.0.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e0704ee1a7e00d7bb417d0770ea303c1bccbabf0ef1667dae92b5967f5f8a71"
+checksum = "5c7ed8b8c7b886ea3ed7dde405212185f423ab44682667c8c6dd14aa1d9f6612"
 dependencies = [
  "unicode-xid",
 ]
@@ -2269,9 +2294,9 @@ checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
 
 [[package]]
 name = "syn"
-version = "1.0.51"
+version = "1.0.74"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3b4f34193997d92804d359ed09953e25d5138df6bcc055a71bf68ee89fdf9223"
+checksum = "1873d832550d4588c3dbc20f01361ab00bfe741048f71e3fecf145a7cc18b29c"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2725,11 +2750,11 @@ checksum = "1a143597ca7c7793eff794def352d41792a93c481eb1042423ff7ff72ba2c31f"
 
 [[package]]
 name = "wasm-bindgen"
-version = "0.2.68"
+version = "0.2.74"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1ac64ead5ea5f05873d7c12b545865ca2b8d28adfc50a49b84770a3a97265d42"
+checksum = "d54ee1d4ed486f78874278e63e4069fc1ab9f6a18ca492076ffb90c5eb2997fd"
 dependencies = [
- "cfg-if 0.1.10",
+ "cfg-if 1.0.0",
  "serde",
  "serde_json",
  "wasm-bindgen-macro",
@@ -2737,9 +2762,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-backend"
-version = "0.2.68"
+version = "0.2.74"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f22b422e2a757c35a73774860af8e112bff612ce6cb604224e8e47641a9e4f68"
+checksum = "3b33f6a0694ccfea53d94db8b2ed1c3a8a4c86dd936b13b9f0a15ec4a451b900"
 dependencies = [
  "bumpalo",
  "lazy_static",
@@ -2764,9 +2789,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro"
-version = "0.2.68"
+version = "0.2.74"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6b13312a745c08c469f0b292dd2fcd6411dba5f7160f593da6ef69b64e407038"
+checksum = "088169ca61430fe1e58b8096c24975251700e7b1f6fd91cc9d59b04fb9b18bd4"
 dependencies = [
  "quote",
  "wasm-bindgen-macro-support",
@@ -2774,9 +2799,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro-support"
-version = "0.2.68"
+version = "0.2.74"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f249f06ef7ee334cc3b8ff031bfc11ec99d00f34d86da7498396dc1e3b1498fe"
+checksum = "be2241542ff3d9f241f5e2cb6dd09b37efe786df8851c54957683a49f0987a97"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2787,9 +2812,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-shared"
-version = "0.2.68"
+version = "0.2.74"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1d649a3145108d7d3fbcde896a468d1bd636791823c9921135218ad89be08307"
+checksum = "d7cff876b8f18eed75a66cf49b65e7f967cb354a7aa16003fb55dbfd25b44b4f"
 
 [[package]]
 name = "wasm-bindgen-test"
@@ -2817,9 +2842,9 @@ dependencies = [
 
 [[package]]
 name = "web-sys"
-version = "0.3.45"
+version = "0.3.51"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4bf6ef87ad7ae8008e15a355ce696bed26012b7caa21605188cfd8214ab51e2d"
+checksum = "e828417b379f3df7111d3a2a9e5753706cae29c41f7c4029ee9fd77f3e09e582"
 dependencies = [
  "js-sys",
  "wasm-bindgen",