diff --git a/Cargo.lock b/Cargo.lock
index 64ac700e5..496e10acf 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,6 +2,21 @@
 # It is not intended for manual editing.
 version = 3
 
+[[package]]
+name = "android_system_properties"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "819e7219dbd41043ac279b19830f2efc897156490d7fd6ea916720117ee66311"
+dependencies = [
+ "libc",
+]
+
+[[package]]
+name = "anyhow"
+version = "1.0.66"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "216261ddc8289130e551ddcd5ce8a064710c0d064a4d2895c67151c92b5443f6"
+
 [[package]]
 name = "atty"
 version = "0.2.11"
@@ -31,12 +46,27 @@ version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
+[[package]]
+name = "block-buffer"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4152116fd6e9dadb291ae18fc1ec3575ed6d84c29642d97890f4b4a3417297e4"
+dependencies = [
+ "generic-array",
+]
+
 [[package]]
 name = "bumpalo"
 version = "3.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c1ad822118d20d2c234f427000d5acc36eabe1e29a348c89b63dd60b13f28e5d"
 
+[[package]]
+name = "bytes"
+version = "0.5.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0e4cec68f03f32e44924783795810fa50a7035d8c8ebe78580ad7e6c703fba38"
+
 [[package]]
 name = "bytes"
 version = "1.2.1"
@@ -45,9 +75,9 @@ checksum = "ec8a7b6a70fde80372154c65702f00a0f56f3e1c36abbc6c440484be248856db"
 
 [[package]]
 name = "cc"
-version = "1.0.36"
+version = "1.0.77"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a0c56216487bb80eec9c4516337b2588a4f2a2290d72a1416d930e4dcdb0c90d"
+checksum = "e9f73505338f7d905b19d18738976aae232eb46b8efc15554ffc56deb5d9ebe4"
 
 [[package]]
 name = "cfg-if"
@@ -63,13 +93,17 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "chrono"
-version = "0.4.6"
+version = "0.4.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "45912881121cb26fad7c38c17ba7daa18764771836b34fab7d3fbd93ed633878"
+checksum = "16b0a3d9ed01224b22057780a37bb8c5dbfe1be8ba48678e7bf57ec4b385411f"
 dependencies = [
+ "iana-time-zone",
+ "js-sys",
  "num-integer",
  "num-traits",
- "time",
+ "time 0.1.44",
+ "wasm-bindgen",
+ "winapi",
 ]
 
 [[package]]
@@ -95,9 +129,9 @@ checksum = "db342ce9fda24fb191e2ed4e102055a4d381c1086a06630174cd8da8d5d917ce"
 dependencies = [
  "heck",
  "proc-macro-error",
- "proc-macro2 1.0.46",
- "quote 1.0.21",
- "syn 1.0.101",
+ "proc-macro2",
+ "quote",
+ "syn",
 ]
 
 [[package]]
@@ -109,6 +143,24 @@ dependencies = [
  "os_str_bytes",
 ]
 
+[[package]]
+name = "codespan-reporting"
+version = "0.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3538270d33cc669650c4b093848450d380def10c331d38c768e34cac80576e6e"
+dependencies = [
+ "termcolor",
+ "unicode-width",
+]
+
+[[package]]
+name = "compute-static"
+version = "0.1.0"
+dependencies = [
+ "fastly",
+ "log",
+]
+
 [[package]]
 name = "core-foundation"
 version = "0.9.3"
@@ -125,6 +177,15 @@ version = "0.8.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5827cebf4670468b8772dd191856768aedcb1b0278a04f989f7766351917b9dc"
 
+[[package]]
+name = "cpufeatures"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "28d997bd5e24a5928dd43e46dc529867e207907fe0b239c3477d924f7f2ca320"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "curl"
 version = "0.4.35"
@@ -155,6 +216,59 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "cxx"
+version = "1.0.82"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d4a41a86530d0fe7f5d9ea779916b7cadd2d4f9add748b99c2c029cbbdfaf453"
+dependencies = [
+ "cc",
+ "cxxbridge-flags",
+ "cxxbridge-macro",
+ "link-cplusplus",
+]
+
+[[package]]
+name = "cxx-build"
+version = "1.0.82"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "06416d667ff3e3ad2df1cd8cd8afae5da26cf9cec4d0825040f88b5ca659a2f0"
+dependencies = [
+ "cc",
+ "codespan-reporting",
+ "once_cell",
+ "proc-macro2",
+ "quote",
+ "scratch",
+ "syn",
+]
+
+[[package]]
+name = "cxxbridge-flags"
+version = "1.0.82"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "820a9a2af1669deeef27cb271f476ffd196a2c4b6731336011e0ba63e2c7cf71"
+
+[[package]]
+name = "cxxbridge-macro"
+version = "1.0.82"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a08a6e2fcc370a089ad3b4aaf54db3b1b4cee38ddabce5896b33eb693275f470"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "digest"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d3dd60d1080a57a05ab032377049e0591415d2b31afd7028356dbf3cc6dcb066"
+dependencies = [
+ "generic-array",
+]
+
 [[package]]
 name = "encoding_rs"
 version = "0.8.17"
@@ -164,6 +278,62 @@ dependencies = [
  "cfg-if 0.1.7",
 ]
 
+[[package]]
+name = "fastly"
+version = "0.8.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0d14ee2f12a3191582449a2e080287eff8898fc52da61c437869d91c41b3ae2a"
+dependencies = [
+ "anyhow",
+ "bytes 0.5.6",
+ "cfg-if 1.0.0",
+ "fastly-macros",
+ "fastly-shared",
+ "fastly-sys",
+ "http",
+ "lazy_static",
+ "mime",
+ "serde",
+ "serde_json",
+ "serde_urlencoded",
+ "sha2",
+ "thiserror",
+ "time 0.3.17",
+ "url",
+]
+
+[[package]]
+name = "fastly-macros"
+version = "0.8.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e3d1b2980c09148cb84bfd18591943ee449a350dc1ff1ead69edbf012f7e2eef"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "fastly-shared"
+version = "0.8.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6f79939bdbbab8b1de759d584f386319454f8623681400675a07f9ad35f2b158"
+dependencies = [
+ "bitflags",
+ "http",
+ "thiserror",
+]
+
+[[package]]
+name = "fastly-sys"
+version = "0.8.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1d01e98274a6b12c85c0eef22924871cc12c54b5322268947322463e59d09336"
+dependencies = [
+ "bitflags",
+ "fastly-shared",
+]
+
 [[package]]
 name = "fastrand"
 version = "1.8.0"
@@ -251,13 +421,23 @@ dependencies = [
  "slab",
 ]
 
+[[package]]
+name = "generic-array"
+version = "0.14.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bff49e947297f3312447abdca79f45f4738097cc82b06e72054d2223f601f1b9"
+dependencies = [
+ "typenum",
+ "version_check",
+]
+
 [[package]]
 name = "h2"
 version = "0.3.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5ca32592cf21ac7ccab1825cd87f6c9b3d9022c44d086172ed0966bec8af30be"
 dependencies = [
- "bytes",
+ "bytes 1.2.1",
  "fnv",
  "futures-core",
  "futures-sink",
@@ -297,9 +477,9 @@ version = "0.2.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "75f43d41e26995c17e71ee126451dd3941010b0514a81a9d11f3b341debc2399"
 dependencies = [
- "bytes",
+ "bytes 1.2.1",
  "fnv",
- "itoa 1.0.3",
+ "itoa",
 ]
 
 [[package]]
@@ -308,7 +488,7 @@ version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d5f38f16d184e36f2408a55281cd658ecbd3ca05cce6d6510a176eca393e26d1"
 dependencies = [
- "bytes",
+ "bytes 1.2.1",
  "http",
  "pin-project-lite",
 ]
@@ -331,7 +511,7 @@ version = "0.14.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "02c929dc5c39e335a03c405292728118860721b10190d98c2a0f0efd5baafbac"
 dependencies = [
- "bytes",
+ "bytes 1.2.1",
  "futures-channel",
  "futures-core",
  "futures-util",
@@ -340,7 +520,7 @@ dependencies = [
  "http-body",
  "httparse",
  "httpdate",
- "itoa 1.0.3",
+ "itoa",
  "pin-project-lite",
  "socket2 0.4.7",
  "tokio",
@@ -355,13 +535,37 @@ version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d6183ddfa99b85da61a140bea0efc93fdf56ceaa041b37d553518030827f9905"
 dependencies = [
- "bytes",
+ "bytes 1.2.1",
  "hyper",
  "native-tls",
  "tokio",
  "tokio-native-tls",
 ]
 
+[[package]]
+name = "iana-time-zone"
+version = "0.1.53"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "64c122667b287044802d6ce17ee2ddf13207ed924c712de9a66a5814d5b64765"
+dependencies = [
+ "android_system_properties",
+ "core-foundation-sys",
+ "iana-time-zone-haiku",
+ "js-sys",
+ "wasm-bindgen",
+ "winapi",
+]
+
+[[package]]
+name = "iana-time-zone-haiku"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0703ae284fc167426161c2e3f1da3ea71d94b21bedbcc9494e92b28e334e3dca"
+dependencies = [
+ "cxx",
+ "cxx-build",
+]
+
 [[package]]
 name = "idna"
 version = "0.3.0"
@@ -397,12 +601,6 @@ version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "879d54834c8c76457ef4293a689b2a8c59b076067ad77b15efafbb05f92a592b"
 
-[[package]]
-name = "itoa"
-version = "0.4.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "501266b7edd0174f8530248f87f99c88fbe60ca4ef3dd486835b8d8d53136f7f"
-
 [[package]]
 name = "itoa"
 version = "1.0.3"
@@ -442,6 +640,15 @@ dependencies = [
  "vcpkg",
 ]
 
+[[package]]
+name = "link-cplusplus"
+version = "1.0.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9272ab7b96c9046fbc5bc56c06c117cb639fe2d509df0c421cad82d2915cf369"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "log"
 version = "0.4.17"
@@ -459,9 +666,9 @@ checksum = "7ffc5c5338469d4d3ea17d269fa8ea3512ad247247c30bd2df69e68309ed0a08"
 
 [[package]]
 name = "memchr"
-version = "2.2.0"
+version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2efc7bc57c883d4a4d6e3246905283d8dae951bb3bd32f49d6ef297f546e1c39"
+checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
 
 [[package]]
 name = "mime"
@@ -475,9 +682,9 @@ version = "0.1.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9a63337614a1d280fdb2880599af563c99e9f388757f8d6515d785d85d14fb01"
 dependencies = [
- "proc-macro2 1.0.46",
- "quote 1.0.21",
- "syn 1.0.101",
+ "proc-macro2",
+ "quote",
+ "syn",
 ]
 
 [[package]]
@@ -486,9 +693,9 @@ version = "0.1.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5f4313e4a66a442473e181963daf8c1e9def85c2d9fb0bb2ae59444260b28285"
 dependencies = [
- "itoa 1.0.3",
+ "itoa",
  "mini-internal",
- "ryu 1.0.11",
+ "ryu",
 ]
 
 [[package]]
@@ -499,7 +706,7 @@ checksum = "57ee1c23c7c63b0c9250c339ffdc69255f110b298b901b9f6c82547b7b87caaf"
 dependencies = [
  "libc",
  "log",
- "wasi",
+ "wasi 0.11.0+wasi-snapshot-preview1",
  "windows-sys",
 ]
 
@@ -558,6 +765,12 @@ version = "1.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e82dad04139b71a90c080c8463fe0dc7902db5192d939bd0950f074d014339e1"
 
+[[package]]
+name = "opaque-debug"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "624a8340c38c1b80fd549087862da4ba43e08858af025b236e509b6649fc13d5"
+
 [[package]]
 name = "openssl"
 version = "0.10.42"
@@ -579,9 +792,9 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b501e44f11665960c7e7fcf062c7d96a14ade4aa98116c004b2e37b5be7d736c"
 dependencies = [
- "proc-macro2 1.0.46",
- "quote 1.0.21",
- "syn 1.0.101",
+ "proc-macro2",
+ "quote",
+ "syn",
 ]
 
 [[package]]
@@ -640,9 +853,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "da25490ff9892aab3fcf7c36f08cfb902dd3e71ca0f9f9517bea02a73a5ce38c"
 dependencies = [
  "proc-macro-error-attr",
- "proc-macro2 1.0.46",
- "quote 1.0.21",
- "syn 1.0.101",
+ "proc-macro2",
+ "quote",
+ "syn",
  "version_check",
 ]
 
@@ -652,20 +865,11 @@ version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a1be40180e52ecc98ad80b184934baf3d0d29f979574e439af5a55274b35f869"
 dependencies = [
- "proc-macro2 1.0.46",
- "quote 1.0.21",
+ "proc-macro2",
+ "quote",
  "version_check",
 ]
 
-[[package]]
-name = "proc-macro2"
-version = "0.4.29"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "64c827cea7a7ab30ce4593e5e04d7a11617ad6ece2fa230605a78b00ff965316"
-dependencies = [
- "unicode-xid",
-]
-
 [[package]]
 name = "proc-macro2"
 version = "1.0.46"
@@ -675,22 +879,13 @@ dependencies = [
  "unicode-ident",
 ]
 
-[[package]]
-name = "quote"
-version = "0.6.12"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "faf4799c5d274f3868a4aae320a0a182cbd2baee377b378f080e16a23e9d80db"
-dependencies = [
- "proc-macro2 0.4.29",
-]
-
 [[package]]
 name = "quote"
 version = "1.0.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bbe448f377a7d6961e30f5955f9b8d106c3f5e449d493ee1b125c1d43c2b5179"
 dependencies = [
- "proc-macro2 1.0.46",
+ "proc-macro2",
 ]
 
 [[package]]
@@ -733,7 +928,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "431949c384f4e2ae07605ccaa56d1d9d2ecdb5cadd4f9577ccfab29f2e5149fc"
 dependencies = [
  "base64",
- "bytes",
+ "bytes 1.2.1",
  "encoding_rs",
  "futures-core",
  "futures-util",
@@ -763,12 +958,6 @@ dependencies = [
  "winreg",
 ]
 
-[[package]]
-name = "ryu"
-version = "0.2.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b96a9549dc8d48f2c283938303c4b5a77aa29bfbc5b54b084fb1630408899a8f"
-
 [[package]]
 name = "ryu"
 version = "1.0.11"
@@ -785,6 +974,12 @@ dependencies = [
  "windows-sys",
 ]
 
+[[package]]
+name = "scratch"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9c8132065adcfd6e02db789d9285a0deb2f3fcb04002865ab67d5fb103533898"
+
 [[package]]
 name = "security-framework"
 version = "2.7.0"
@@ -810,32 +1005,32 @@ dependencies = [
 
 [[package]]
 name = "serde"
-version = "1.0.91"
+version = "1.0.147"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a72e9b96fa45ce22a4bc23da3858dfccfd60acd28a25bcd328a98fdd6bea43fd"
+checksum = "d193d69bae983fc11a79df82342761dfbf28a99fc8d203dca4c3c1b590948965"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.91"
+version = "1.0.147"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "101b495b109a3e3ca8c4cbe44cf62391527cdfb6ba15821c5ce80bcd5ea23f9f"
+checksum = "4f1d362ca8fc9c3e3a7484440752472d68a6caa98f1ab81d99b5dfe517cec852"
 dependencies = [
- "proc-macro2 0.4.29",
- "quote 0.6.12",
- "syn 0.15.33",
+ "proc-macro2",
+ "quote",
+ "syn",
 ]
 
 [[package]]
 name = "serde_json"
-version = "1.0.39"
+version = "1.0.89"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5a23aa71d4a4d43fdbfaac00eff68ba8a06a51759a89ac3304323e800c4dd40d"
+checksum = "020ff22c755c2ed3f8cf162dbb41a7268d934702f3ed3631656ea597e08fc3db"
 dependencies = [
- "itoa 0.4.4",
- "ryu 0.2.8",
+ "itoa",
+ "ryu",
  "serde",
 ]
 
@@ -846,8 +1041,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d3491c14715ca2294c4d6a88f15e84739788c1d030eed8c110436aafdaa2f3fd"
 dependencies = [
  "form_urlencoded",
- "itoa 1.0.3",
- "ryu 1.0.11",
+ "itoa",
+ "ryu",
  "serde",
 ]
 
@@ -863,6 +1058,19 @@ dependencies = [
  "serde_json",
 ]
 
+[[package]]
+name = "sha2"
+version = "0.9.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4d58a1e1bf39749807d89cf2d98ac2dfa0ff1cb3faa38fbb64dd88ac8013d800"
+dependencies = [
+ "block-buffer",
+ "cfg-if 1.0.0",
+ "cpufeatures",
+ "digest",
+ "opaque-debug",
+]
+
 [[package]]
 name = "slab"
 version = "0.4.2"
@@ -896,25 +1104,14 @@ version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
 
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 dependencies = [
- "proc-macro2 1.0.46",
- "quote 1.0.21",
+ "proc-macro2",
+ "quote",
  "unicode-ident",
 ]
 
@@ -962,17 +1159,63 @@ dependencies = [
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 ]
 
+[[package]]
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+ "thiserror-impl",
+]
+
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+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "time"
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-checksum = "db8dcfca086c1143c9270ac42a2bbd8a7ee477b78ac8e45b19abfb0cbede4b6f"
+checksum = "6db9e6914ab8b1ae1c260a4ae7a49b6c5611b40328a735b21862567685e73255"
 dependencies = [
  "libc",
- "redox_syscall 0.1.54",
+ "wasi 0.10.0+wasi-snapshot-preview1",
  "winapi",
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+version = "0.3.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a561bf4617eebd33bca6434b988f39ed798e527f51a1e797d0ee4f61c0a38376"
+dependencies = [
+ "serde",
+ "time-core",
+ "time-macros",
+]
+
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+checksum = "2e153e1f1acaef8acc537e68b44906d2db6436e2b35ac2c6b42640fff91f00fd"
+
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+dependencies = [
+ "time-core",
+]
+
 [[package]]
 name = "tinyvec"
 version = "1.6.0"
@@ -995,7 +1238,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a9e03c497dc955702ba729190dc4aac6f2a0ce97f913e5b1b5912fc5039d9099"
 dependencies = [
  "autocfg",
- "bytes",
+ "bytes 1.2.1",
  "libc",
  "memchr",
  "mio",
@@ -1021,7 +1264,7 @@ version = "0.7.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0bb2e075f03b3d66d8d8785356224ba688d2906a371015e225beeb65ca92c740"
 dependencies = [
- "bytes",
+ "bytes 1.2.1",
  "futures-core",
  "futures-sink",
  "pin-project-lite",
@@ -1061,6 +1304,12 @@ version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e604eb7b43c06650e854be16a2a03155743d3752dd1c943f6829e26b7a36e382"
 
+[[package]]
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+checksum = "dcf81ac59edc17cc8697ff311e8f5ef2d99fcbd9817b34cec66f90b6c3dfd987"
+
 [[package]]
 name = "unicode-bidi"
 version = "0.3.4"
@@ -1086,10 +1335,10 @@ dependencies = [
 ]
 
 [[package]]
-name = "unicode-xid"
-version = "0.1.0"
+name = "unicode-width"
+version = "0.1.10"
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-checksum = "fc72304796d0818e357ead4e000d19c9c174ab23dc11093ac919054d20a6a7fc"
+checksum = "c0edd1e5b14653f783770bce4a4dabb4a5108a5370a5f5d8cfe8710c361f6c8b"
 
 [[package]]
 name = "url"
@@ -1124,6 +1373,12 @@ dependencies = [
  "try-lock",
 ]
 
+[[package]]
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+version = "0.10.0+wasi-snapshot-preview1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1a143597ca7c7793eff794def352d41792a93c481eb1042423ff7ff72ba2c31f"
+
 [[package]]
 name = "wasi"
 version = "0.11.0+wasi-snapshot-preview1"
@@ -1149,9 +1404,9 @@ dependencies = [
  "bumpalo",
  "log",
  "once_cell",
- "proc-macro2 1.0.46",
- "quote 1.0.21",
- "syn 1.0.101",
+ "proc-macro2",
+ "quote",
+ "syn",
  "wasm-bindgen-shared",
 ]
 
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "052be0f94026e6cbc75cdefc9bae13fd6052cdcaf532fa6c45e7ae33a1e6c810"
 dependencies = [
- "quote 1.0.21",
+ "quote",
  "wasm-bindgen-macro-support",
 ]
 
@@ -1183,9 +1438,9 @@ version = "0.2.83"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "07bc0c051dc5f23e307b13285f9d75df86bfdf816c5721e573dec1f9b8aa193c"
 dependencies = [
- "proc-macro2 1.0.46",
- "quote 1.0.21",
- "syn 1.0.101",
+ "proc-macro2",
+ "quote",
+ "syn",
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  "wasm-bindgen-shared",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 3ae9e2d4e..7a14a1ad2 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,4 +2,5 @@
 members = [
     "setup-deploy-keys",
     "ansible/roles/dev-desktop/files/team_login",
+    "terraform/crates-io/compute-static"
 ]
diff --git a/terraform/crates-io/compute-static/.cargo/config b/terraform/crates-io/compute-static/.cargo/config
new file mode 100644
index 000000000..6b77899cb
--- /dev/null
+++ b/terraform/crates-io/compute-static/.cargo/config
@@ -0,0 +1,2 @@
+[build]
+target = "wasm32-wasi"
diff --git a/terraform/crates-io/compute-static/.gitignore b/terraform/crates-io/compute-static/.gitignore
new file mode 100644
index 000000000..9f6a0890d
--- /dev/null
+++ b/terraform/crates-io/compute-static/.gitignore
@@ -0,0 +1,4 @@
+/target
+**/*.rs.bk
+/bin
+/pkg
diff --git a/terraform/crates-io/compute-static/Cargo.lock b/terraform/crates-io/compute-static/Cargo.lock
new file mode 100644
index 000000000..c51de1b15
--- /dev/null
+++ b/terraform/crates-io/compute-static/Cargo.lock
@@ -0,0 +1,394 @@
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+# It is not intended for manual editing.
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+name = "url"
+version = "2.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0d68c799ae75762b8c3fe375feb6600ef5602c883c5d21eb51c09f22b83c4643"
+dependencies = [
+ "form_urlencoded",
+ "idna",
+ "percent-encoding",
+]
+
+[[package]]
+name = "version_check"
+version = "0.9.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
diff --git a/terraform/crates-io/compute-static/Cargo.toml b/terraform/crates-io/compute-static/Cargo.toml
new file mode 100644
index 000000000..7bceffcba
--- /dev/null
+++ b/terraform/crates-io/compute-static/Cargo.toml
@@ -0,0 +1,14 @@
+[package]
+name = "compute-static"
+description = "Compute@Edge function for static.crates.io"
+version = "0.1.0"
+edition = "2021"
+
+publish = false
+
+[profile.release]
+debug = 1
+
+[dependencies]
+fastly = "0.8.9"
+log = "0.4.17"
diff --git a/terraform/crates-io/compute-static/README.md b/terraform/crates-io/compute-static/README.md
new file mode 100644
index 000000000..e09907949
--- /dev/null
+++ b/terraform/crates-io/compute-static/README.md
@@ -0,0 +1,35 @@
+# Compute@Edge Function for `static.crates.io`
+
+We are using a [Compute@Edge](https://docs.fastly.com/en/guides/compute-at-edge)
+function on [Fastly](https://fastly.com) to route incoming traffic for
+`static.crates.io` to S3. The function tries to get crates from the primary
+bucket, and will fail-over to a fallback if it receives any HTTP `5xx`
+responses.
+
+## Deployment
+
+After making changes to the function, make sure to build a new release package
+and update the hash in [`fastly-static.tf`](../impl/fastly-static.tf). We
+manually update the hash to prevent accidentally overwriting the function.
+
+Build the function:
+
+```shell
+cd compute-static
+fastly compute build
+```
+
+Calculate the hash:
+
+```shell
+cd compute-static
+fastly compute hashsum
+```
+
+Copy the hash and paste it into [`fastly-static.tf`](../impl/fastly-static.tf).
+Then run Terraform as usual.
+
+```shell
+export FASTLY_API_KEY=""
+terraform plan
+```
diff --git a/terraform/crates-io/compute-static/fastly.toml b/terraform/crates-io/compute-static/fastly.toml
new file mode 100644
index 000000000..d67ae4d58
--- /dev/null
+++ b/terraform/crates-io/compute-static/fastly.toml
@@ -0,0 +1,12 @@
+# This file describes a Fastly Compute@Edge package. To learn more visit:
+# https://developer.fastly.com/reference/fastly-toml/
+
+authors = ["infra@rust-lang.org"]
+description = "Compute@Edge function for static.crates.io"
+language = "rust"
+manifest_version = 2
+name = "compute-static"
+service_id = ""
+
+[scripts]
+  build = "cargo build --bin compute-static --release --target wasm32-wasi --color always"
diff --git a/terraform/crates-io/compute-static/rust-toolchain.toml b/terraform/crates-io/compute-static/rust-toolchain.toml
new file mode 100644
index 000000000..5914a5625
--- /dev/null
+++ b/terraform/crates-io/compute-static/rust-toolchain.toml
@@ -0,0 +1,3 @@
+[toolchain]
+channel = "stable"
+targets = [ "wasm32-wasi" ]
diff --git a/terraform/crates-io/compute-static/src/config.rs b/terraform/crates-io/compute-static/src/config.rs
new file mode 100644
index 000000000..2f981f171
--- /dev/null
+++ b/terraform/crates-io/compute-static/src/config.rs
@@ -0,0 +1,35 @@
+use fastly::ConfigStore;
+
+// Name of the dictionary. Must match the dictionary in `fastly-static.tf`.
+const DICTIONARY_NAME: &str = "compute_static";
+
+// Name of the dictionary item with the name of the primary host.
+const PRIMARY_HOST: &str = "s3-primary-host";
+
+// Name of the dictionary item with the name of the fallback host.
+const FALLBACK_HOST: &str = "s3-fallback-host";
+
+#[derive(Debug)]
+pub struct Config {
+    pub primary_host: String,
+    pub fallback_host: String,
+}
+
+impl Config {
+    pub fn from_dictionary() -> Self {
+        let dictionary = ConfigStore::open(DICTIONARY_NAME);
+
+        // Lookup S3 hosts for current environment
+        let primary_host = dictionary
+            .get(PRIMARY_HOST)
+            .expect("failed to get S3 primary host from dictionary");
+        let fallback_host = dictionary
+            .get(FALLBACK_HOST)
+            .expect("failed to get S3 fallback host from dictionary");
+
+        Self {
+            primary_host,
+            fallback_host,
+        }
+    }
+}
diff --git a/terraform/crates-io/compute-static/src/main.rs b/terraform/crates-io/compute-static/src/main.rs
new file mode 100644
index 000000000..8b8c39cf8
--- /dev/null
+++ b/terraform/crates-io/compute-static/src/main.rs
@@ -0,0 +1,60 @@
+use fastly::http::{Method, StatusCode};
+use fastly::{Error, Request, Response};
+use log::warn;
+
+use crate::config::Config;
+
+mod config;
+
+#[fastly::main]
+fn main(request: Request) -> Result<Response, Error> {
+    let config = Config::from_dictionary();
+
+    if let Some(response) = limit_http_methods(&request) {
+        return Ok(response);
+    }
+
+    send_request_to_s3(&config, &request)
+}
+
+/// Limit HTTP methods
+///
+/// Clients are only allowed to request resources using GET and HEAD requests. If any other HTTP
+/// method is received, HTTP 403 Unauthorized is returned.
+///
+/// We don't return HTTP 405 Method Not Allowed to maintain parity with CloudFront.
+fn limit_http_methods(request: &Request) -> Option<Response> {
+    let method = request.get_method();
+
+    if method != Method::GET && method != Method::HEAD {
+        return Some(
+            Response::from_body("Method not allowed").with_status(StatusCode::UNAUTHORIZED),
+        );
+    }
+
+    None
+}
+
+/// Forward client request to S3
+///
+/// The request that was received by the client is forwarded to S3. First, the primary bucket is
+/// queried. If the response indicates a server issue (status code >= 500), the request is sent to
+/// a fallback bucket in a different geographical region.
+fn send_request_to_s3(config: &Config, request: &Request) -> Result<Response, Error> {
+    let primary_request = request.clone_without_body();
+
+    let mut response = primary_request.send(&config.primary_host)?;
+    let status_code = response.get_status().as_u16();
+
+    if status_code >= 500 {
+        warn!(
+            "Request to host {} returned status code {}",
+            config.primary_host, status_code
+        );
+
+        let fallback_request = request.clone_without_body();
+        response = fallback_request.send(&config.fallback_host)?;
+    }
+
+    Ok(response)
+}
diff --git a/terraform/crates-io/envs.tf b/terraform/crates-io/envs.tf
index 0229dd058..ece53e9ba 100644
--- a/terraform/crates-io/envs.tf
+++ b/terraform/crates-io/envs.tf
@@ -47,3 +47,7 @@ module "staging" {
 
   strict_security_headers = true
 }
+
+output "dns_challenge" {
+  value = module.staging.dns_challenges
+}
diff --git a/terraform/crates-io/impl/fastly-static.tf b/terraform/crates-io/impl/fastly-static.tf
index 0c87e60c7..ba3eba746 100644
--- a/terraform/crates-io/impl/fastly-static.tf
+++ b/terraform/crates-io/impl/fastly-static.tf
@@ -1,4 +1,11 @@
-resource "fastly_service_vcl" "static" {
+locals {
+  primary_host_name  = aws_s3_bucket.static.region
+  fallback_host_name = aws_s3_bucket.fallback.region
+  dictionary_name    = "compute_static"
+  package_path       = "./compute-static/pkg/compute-static.tar.gz"
+}
+
+resource "fastly_service_compute" "static" {
   name = var.static_domain_name
 
   domain {
@@ -6,14 +13,52 @@ resource "fastly_service_vcl" "static" {
   }
 
   backend {
+    # Must be identical to s3-primary-host item in dictionary
+    name = local.primary_host_name
+
     address       = aws_s3_bucket.static.bucket_regional_domain_name
-    name          = aws_s3_bucket.static.region
     override_host = aws_s3_bucket.static.bucket_regional_domain_name
 
     use_ssl           = true
     port              = 443
     ssl_cert_hostname = aws_s3_bucket.static.bucket_regional_domain_name
   }
+
+  backend {
+    # Must be identical to s3-fallback-host item in dictionary
+    name = local.fallback_host_name
+
+    address       = aws_s3_bucket.fallback.bucket_regional_domain_name
+    override_host = aws_s3_bucket.fallback.bucket_regional_domain_name
+
+    use_ssl           = true
+    port              = 443
+    ssl_cert_hostname = aws_s3_bucket.fallback.bucket_regional_domain_name
+  }
+
+  dictionary {
+    name = local.dictionary_name
+  }
+
+  package {
+    filename         = local.package_path
+    source_code_hash = filesha512(local.package_path)
+  }
+}
+
+resource "fastly_service_dictionary_items" "compute_static" {
+  for_each = {
+    for d in fastly_service_compute.static.dictionary : d.name => d if d.name == local.dictionary_name
+  }
+
+  service_id    = fastly_service_compute.static.id
+  dictionary_id = each.value.dictionary_id
+  manage_items  = true
+
+  items = {
+    "s3-primary-host" : local.primary_host_name
+    "s3-fallback-host" : local.fallback_host_name
+  }
 }
 
 resource "fastly_tls_subscription" "static" {
@@ -24,17 +69,11 @@ resource "fastly_tls_subscription" "static" {
 resource "aws_route53_record" "static_tls_validation" {
   depends_on = [fastly_tls_subscription.static]
 
-  for_each = {
-    for challenge in fastly_tls_subscription.static.managed_dns_challenges :
-    trimprefix(challenge.record_name, "_acme-challenge.") => challenge
-  }
-
-  # only reads the first element in the list since all elements are exactly the same (see above)
-  name            = each.value[0].record_name
-  type            = each.value[0].record_type
+  name            = fastly_tls_subscription.static.managed_dns_challenge.record_name
+  type            = fastly_tls_subscription.static.managed_dns_challenge.record_type
   zone_id         = data.aws_route53_zone.static.id
   allow_overwrite = true
-  records         = [each.value[0].record_value]
+  records         = [fastly_tls_subscription.static.managed_dns_challenge.record_value]
   ttl             = 60
 }
 
@@ -42,3 +81,7 @@ resource "fastly_tls_subscription_validation" "static" {
   depends_on      = [aws_route53_record.static_tls_validation]
   subscription_id = fastly_tls_subscription.static.id
 }
+
+output "dns_challenges" {
+  value = fastly_tls_subscription.static.managed_dns_challenges
+}