diff --git a/extra/cbindgen/checksums b/extra/cbindgen/checksums
index 64e89719..aab9c386 100644
--- a/extra/cbindgen/checksums
+++ b/extra/cbindgen/checksums
@@ -1,21 +1,24 @@
-9e2756a292a3b1182b8f741d6bb9e5a8b8a8dc2eacfb187c7db649966452798d
+5a068b3d4cd0319b12844c83816d63e2e9ce8176bd2d78ca0ac03d4833bcbab7
 ee49baf6cb617b853aa8d93bf420db2383fab46d314482ca2803b40d5fde979b
 d9b39be18770d11421cdb1b9947a45dd3f37e93092cbf377614828a319d5fee8
 cdb031dd78e28731d87d56cc8ffef4a8f36ca26c38fe2de700543e627f8a464a
 cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693
-214238caa1bf3a496ec3392968969cab8549f96ff30652c9e56885329315f6bb
 4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822
 37e58ac78573c40708d45522f0d80fa2f01cc4f9b4e2bf749807255454312002
+ddfc5b9aa5d4507acaf872de71051dfd0e309860e88966e1051e462a077aac4f
 fc587bc0ec293155d5bfa6b9891ec18a1e330c234f896ea47fbada4cadbe47e6
 d7afe4a420e3fe79967a00898cc1f4db7c8a49a9333a29f8a4bd76a253d5cd04
 20564e78d53d2bb135c343b3f47714a56af2061f1c928fdb541dc7b9fdd94205
 4c30f6d0bc6b00693347368a67d41b58f2fb851215ff1da49e90fe2c5c667151
-dc6f3ad7b9d11a0c00842ff8de1b60ee58661048eb8049ed33c73594f359d7e6
 55e2e4c765aa53a0424761bf9f41aa7a6ac1efa87238f59560640e27fca028f2
+dc6f3ad7b9d11a0c00842ff8de1b60ee58661048eb8049ed33c73594f359d7e6
+e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646
 f2f96b10ec2560088a8e76961b00d47107b3a625fecb76dedb29ee7ccbf98235
+c4da24a77a3d8a6d4862d95f72e6fdb9c09a643ecdb402d754004a557f2bec75
 4fabed175da42fed1fa0746b0ea71f412aa9d35e76e95e59b192c64b9dc2bf8b
+d3a704eb390aafdc107b0e392f56a82b668e3a71366993b5340f5833fd62505e
+d58c7c768d4ba344e3e8d72518ac13e259d7c7ade24167003b8488e10b6740a3
 c36fa947111f5c62a733b652544dd0016a43ce89619538a8ef92724a6f501a20
-0319972dcae462681daf4da1adeeaa066e3ebd29c69be96c6abb1259d2ee2bcc
 36e28516df94f3dd551a587da5357459d9b36d945a7c37c3557928c1c2ff2a2c
 aa563d17ecb180e500da1cfd2b028310ac758de548efdd203e18f283af693f37
 6a6b1679d49b24bbfe0c803429aa1874472f50d9b363131f0e89fc356b544d03
@@ -25,9 +28,13 @@ ca3129af7b92a17112d59ad498c6f81eaf463253766b90396d39ea7a39d6613c
 41cc0f7e4d5d4544e8861606a285bb08d3e70712ccc7d2b84d7c0ccfaf4b05ce
 3acd125665422973a33ac9d3dd2df85edad0f4ae9b00dafb1a05e43a9f5ef8e7
 71d301d4193d031abdd79ff7e3dd721168a9572ef3fe51a1517aba235bd8f86e
+d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd
 96fe57af81d28386a513cbc6858332abc6117cfdb5999647c6444b8f43a370a5
 f630a6370fd8e457873b4bd2ffdae75408bc291ba72be773772a4c2a065d9ae8
 164eacbdb13512ec2745fb09d51fd5b22b0d65ed294a1dcf7285a360c80a675c
+1b15f74add9a9d4a3eb2bf739c9a427d266d3895b53d992c3a7c234fec2ff1f1
+65f59259be9fc1bf677d06cc1456e97756004a1a5a577480f71430bd7c17ba33
+fbee7696b84bbf3d89a1c2eccff0850e3047ed46bfcd2e92c29a2d074d57e252
 8ea5119cdb4c55b55d432abb513a0429384878c15dde60cc77b1c99de1a95a6a
 6690e3e9f692504b941dc6c3b188fd28df054f7fb8469ab40680df52fdcc842b
 7a6e24d9338a0a5be79593e2fa15a648add6138caa803e2d5bc782c371732ca9
diff --git a/extra/cbindgen/sources b/extra/cbindgen/sources
index 4c84763a..d5561aeb 100644
--- a/extra/cbindgen/sources
+++ b/extra/cbindgen/sources
@@ -1,4 +1,4 @@
-https://github.com/eqrion/cbindgen/archive/v0.15.0.tar.gz
+https://github.com/eqrion/cbindgen/archive/v0.19.0.tar.gz
 
 # This is a pre-generated list of crate dependencies from the
 # "kiss-cargo-urlgen" utility. This allows us to pre-cache
@@ -8,19 +8,22 @@ https://static.crates.io/crates/ansi_term/ansi_term-0.11.0.crate vendor
 https://static.crates.io/crates/atty/atty-0.2.14.crate vendor
 https://static.crates.io/crates/autocfg/autocfg-1.0.1.crate vendor
 https://static.crates.io/crates/bitflags/bitflags-1.2.1.crate vendor
-https://static.crates.io/crates/c2-chacha/c2-chacha-0.2.3.crate vendor
 https://static.crates.io/crates/cfg-if/cfg-if-0.1.10.crate vendor
 https://static.crates.io/crates/clap/clap-2.33.3.crate vendor
+https://static.crates.io/crates/cloudabi/cloudabi-0.0.3.crate vendor
 https://static.crates.io/crates/getrandom/getrandom-0.1.15.crate vendor
 https://static.crates.io/crates/hashbrown/hashbrown-0.9.1.crate vendor
 https://static.crates.io/crates/heck/heck-0.3.1.crate vendor
 https://static.crates.io/crates/hermit-abi/hermit-abi-0.1.16.crate vendor
-https://static.crates.io/crates/itoa/itoa-0.4.6.crate vendor
 https://static.crates.io/crates/indexmap/indexmap-1.6.0.crate vendor
+https://static.crates.io/crates/itoa/itoa-0.4.6.crate vendor
+https://static.crates.io/crates/lazy_static/lazy_static-1.4.0.crate vendor
 https://static.crates.io/crates/libc/libc-0.2.77.crate vendor
+https://static.crates.io/crates/lock_api/lock_api-0.3.4.crate vendor
 https://static.crates.io/crates/log/log-0.4.11.crate vendor
+https://static.crates.io/crates/parking_lot/parking_lot-0.10.2.crate vendor
+https://static.crates.io/crates/parking_lot_core/parking_lot_core-0.7.2.crate vendor
 https://static.crates.io/crates/ppv-lite86/ppv-lite86-0.2.9.crate vendor
-https://static.crates.io/crates/proc-macro2/proc-macro2-1.0.7.crate vendor
 https://static.crates.io/crates/proc-macro2/proc-macro2-1.0.21.crate vendor
 https://static.crates.io/crates/quote/quote-1.0.7.crate vendor
 https://static.crates.io/crates/rand/rand-0.7.3.crate vendor
@@ -30,9 +33,13 @@ https://static.crates.io/crates/rand_hc/rand_hc-0.2.0.crate vendor
 https://static.crates.io/crates/redox_syscall/redox_syscall-0.1.57.crate vendor
 https://static.crates.io/crates/remove_dir_all/remove_dir_all-0.5.3.crate vendor
 https://static.crates.io/crates/ryu/ryu-1.0.5.crate vendor
+https://static.crates.io/crates/scopeguard/scopeguard-1.1.0.crate vendor
 https://static.crates.io/crates/serde/serde-1.0.116.crate vendor
 https://static.crates.io/crates/serde_derive/serde_derive-1.0.116.crate vendor
 https://static.crates.io/crates/serde_json/serde_json-1.0.57.crate vendor
+https://static.crates.io/crates/serial_test/serial_test-0.5.0.crate vendor
+https://static.crates.io/crates/serial_test_derive/serial_test_derive-0.5.0.crate vendor
+https://static.crates.io/crates/smallvec/smallvec-1.4.2.crate vendor
 https://static.crates.io/crates/strsim/strsim-0.8.0.crate vendor
 https://static.crates.io/crates/syn/syn-1.0.41.crate vendor
 https://static.crates.io/crates/tempfile/tempfile-3.1.0.crate vendor
@@ -42,7 +49,7 @@ https://static.crates.io/crates/unicode-segmentation/unicode-segmentation-1.6.0.
 https://static.crates.io/crates/unicode-width/unicode-width-0.1.8.crate vendor
 https://static.crates.io/crates/unicode-xid/unicode-xid-0.2.1.crate vendor
 https://static.crates.io/crates/vec_map/vec_map-0.8.2.crate vendor
-https://static.crates.io/crates/wasi/wasi-0.9.0+wasi-snapshot-preview1.crate vendor
+https://static.crates.io/crates/wasi-0.9.0+wasi-snapshot/wasi-0.9.0+wasi-snapshot-preview1.crate vendor
 https://static.crates.io/crates/winapi/winapi-0.3.9.crate vendor
 https://static.crates.io/crates/winapi-i686-pc-windows-gnu/winapi-i686-pc-windows-gnu-0.4.0.crate vendor
 https://static.crates.io/crates/winapi-x86_64-pc-windows-gnu/winapi-x86_64-pc-windows-gnu-0.4.0.crate vendor
diff --git a/extra/cbindgen/version b/extra/cbindgen/version
index cd62e2ea..2492b8fa 100644
--- a/extra/cbindgen/version
+++ b/extra/cbindgen/version
@@ -1 +1 @@
-0.15.0 1
+0.19.0 1