Prepare logging infrastructure

Cargo.lock

@@ -58,15 +58,6 @@ dependencies = [
  "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "base64"
-version = "0.9.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
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- "safemem 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "base64"
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@@ -118,17 +109,6 @@ dependencies = [
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 ]
 
-[[package]]
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-version = "0.11.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
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- "ring 0.13.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
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-
 [[package]]
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@@ -224,35 +204,6 @@ dependencies = [
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 ]
 
-[[package]]
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-version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
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- "devise_core 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
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- "quote 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
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- "proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)",
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- "syn 0.15.34 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "dotenv"
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@@ -405,7 +356,7 @@ dependencies = [
  "futures-channel-preview 0.3.0-alpha.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures-core-preview 0.3.0-alpha.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures-util-preview 0.3.0-alpha.17 (registry+https://github.com/rust-lang/crates.io-index)",
- "num_cpus 1.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num_cpus 1.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -518,24 +469,6 @@ dependencies = [
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 ]
 
-[[package]]
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-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
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- "httparse 1.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "language-tags 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "mime 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
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- "typeable 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "unicase 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
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@@ -618,11 +551,6 @@ dependencies = [
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 ]
 
-[[package]]
-name = "language-tags"
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-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "lazy_static"
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@@ -647,14 +575,6 @@ dependencies = [
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 ]
 
-[[package]]
-name = "log"
-version = "0.3.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "log"
 version = "0.4.6"
@@ -678,14 +598,6 @@ name = "memoffset"
 version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "mime"
-version = "0.2.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "mime"
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@@ -864,26 +776,6 @@ dependencies = [
  "pulldown-cmark 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "pear"
-version = "0.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "pear_codegen 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "pear_codegen"
-version = "0.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 0.15.34 (registry+https://github.com/rust-lang/crates.io-index)",
- "version_check 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "yansi 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
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-
 [[package]]
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@@ -1153,66 +1045,6 @@ dependencies = [
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 ]
 
-[[package]]
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-source = "registry+https://github.com/rust-lang/crates.io-index"
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- "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
- "untrusted 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
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-source = "registry+https://github.com/rust-lang/crates.io-index"
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-[[package]]
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 [[package]]
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@@ -1240,11 +1072,6 @@ name = "ryu"
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
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-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
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@@ -1350,11 +1177,6 @@ name = "stable_deref_trait"
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
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-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
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@@ -1566,14 +1388,6 @@ dependencies = [
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 ]
 
-[[package]]
-name = "toml"
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-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
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-
 [[package]]
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@@ -1582,11 +1396,6 @@ dependencies = [
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-[[package]]
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-
 [[package]]
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@@ -1604,11 +1413,11 @@ dependencies = [
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  "toml 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "uuid 0.7.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1624,11 +1433,6 @@ dependencies = [
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-[[package]]
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 [[package]]
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@@ -1676,11 +1480,6 @@ name = "unicode-xid"
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 [[package]]
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@@ -1714,11 +1513,6 @@ name = "version_check"
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-[[package]]
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-source = "registry+https://github.com/rust-lang/crates.io-index"
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 [[package]]
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@@ -1784,16 +1578,6 @@ dependencies = [
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-[[package]]
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 "checksum crossbeam-epoch 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)" = "04c9e3102cc2d69cd681412141b390abd55a362afc1540965dad0ad4d34280b4"
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-"checksum devise_core 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "cf41c59b22b5e3ec0ea55c7847e5f358d340f3a8d6d53a5cf4f1564967f96487"
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 "checksum kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
-"checksum language-tags 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "a91d884b6667cd606bb5a69aa0c99ba811a115fc68915e7056ec08a46e93199a"
 "checksum lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "bc5729f27f159ddd61f4df6228e827e86643d4d3e7c32183cb30a1c08f604a14"
 "checksum lazycell 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "b294d6fa9ee409a054354afc4352b0b9ef7ca222c69b8812cbea9e7d2bf3783f"
 "checksum libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)" = "c6785aa7dd976f5fbf3b71cfd9cd49d7f783c1ff565a858d71031c6c313aa5c6"
 "checksum lock_api 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "62ebf1391f6acad60e5c8b43706dde4582df75c06698ab44511d15016bc2442c"
-"checksum log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)" = "e19e8d5c34a3e0e2223db8e060f9e8264aeeb5c5fc64a4ee9965c062211c024b"
 "checksum log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c84ec4b527950aa83a329754b01dbe3f58361d1c5efacd1f6d68c494d08a17c6"
 "checksum matches 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)" = "7ffc5c5338469d4d3ea17d269fa8ea3512ad247247c30bd2df69e68309ed0a08"
 "checksum memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "88579771288728879b57485cc7d6b07d648c9f0141eb955f8ab7f9d45394468e"
 "checksum memoffset 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "0f9dc261e2b62d7a622bf416ea3c5245cdd5d9a7fcc428c0d06804dfce1775b3"
-"checksum mime 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)" = "ba626b8a6de5da682e1caa06bdb42a335aee5a84db8e5046a3e8ab17ba0a3ae0"
 "checksum mime 0.3.13 (registry+https://github.com/rust-lang/crates.io-index)" = "3e27ca21f40a310bd06d9031785f4801710d566c184a6e15bad4f1d9b65f9425"
 "checksum mime_guess 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)" = "30de2e4613efcba1ec63d8133f344076952090c122992a903359be5a4f99c3ed"
 "checksum miniz_oxide 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "b6c3756d66cf286314d5f7ebe74886188a9a92f5eee68b06f31ac2b4f314c99d"
@@ -1893,8 +1668,6 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum owning_ref 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "49a4b8ea2179e6a2e27411d3bca09ca6dd630821cf6894c6c7c8467a8ee7ef13"
 "checksum parking_lot 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)" = "ab41b4aed082705d1056416ae4468b6ea99d52599ecf3169b00088d43113e337"
 "checksum parking_lot_core 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "94c8c7923936b28d546dfd14d4472eaf34c99b14e1c973a32b3e6d4eb04298c9"
-"checksum pear 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "c26d2b92e47063ffce70d3e3b1bd097af121a9e0db07ca38a6cc1cf0cc85ff25"
-"checksum pear_codegen 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "336db4a192cc7f54efeb0c4e11a9245394824cc3bcbd37ba3ff51240c35d7a6e"
 "checksum percent-encoding 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "31010dd2e1ac33d5b46a5b413495239882813e0369f8ed8a5e266f173602f831"
 "checksum phf 0.7.24 (registry+https://github.com/rust-lang/crates.io-index)" = "b3da44b85f8e8dfaec21adae67f95d93244b2ecf6ad2a692320598dcc8e6dd18"
 "checksum phf_codegen 0.7.24 (registry+https://github.com/rust-lang/crates.io-index)" = "b03e85129e324ad4166b06b2c7491ae27fe3ec353af72e72cd1654c7225d517e"
@@ -1924,15 +1697,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum regex-syntax 0.6.8 (registry+https://github.com/rust-lang/crates.io-index)" = "9b01330cce219c1c6b2e209e5ed64ccd587ae5c67bed91c0b49eecf02ae40e21"
 "checksum remove_dir_all 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "3488ba1b9a2084d38645c4c08276a1752dcbf2c7130d74f1569681ad5d2799c5"
 "checksum reqwest 0.9.18 (registry+https://github.com/rust-lang/crates.io-index)" = "00eb63f212df0e358b427f0f40aa13aaea010b470be642ad422bcbca2feff2e4"
-"checksum ring 0.13.5 (registry+https://github.com/rust-lang/crates.io-index)" = "2c4db68a2e35f3497146b7e4563df7d4773a2433230c5e4b448328e31740458a"
-"checksum rocket 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "42c1e9deb3ef4fa430d307bfccd4231434b707ca1328fae339c43ad1201cc6f7"
-"checksum rocket_codegen 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "79aa1366f9b2eccddc05971e17c5de7bb75a5431eb12c2b5c66545fd348647f4"
-"checksum rocket_http 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "b1391457ee4e80b40d4b57fa5765c0f2836b20d73bcbee4e3f35d93cf3b80817"
 "checksum rust_team_data 1.0.0 (git+https://github.com/rust-lang/team)" = "<none>"
 "checksum rustc-demangle 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)" = "ccc78bfd5acd7bf3e89cffcf899e5cb1a52d6fafa8dec2739ad70c9577a57288"
 "checksum rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a"
 "checksum ryu 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "c92464b447c0ee8c4fb3824ecc8383b81717b9f1e74ba2e72540aef7b9f82997"
-"checksum safemem 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "8dca453248a96cb0749e36ccdfe2b0b4e54a61bfef89fb97ec621eb8e0a93dd9"
 "checksum schannel 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)" = "f2f6abf258d99c3c1c5c2131d99d064e94b7b3dd5f416483057f308fea253339"
 "checksum scopeguard 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "94258f53601af11e6a49f722422f6e3425c52b06245a5cf9bc09908b174f5e27"
 "checksum security-framework 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "eee63d0f4a9ec776eeb30e220f0bc1e092c3ad744b2a379e3993070364d3adc2"
@@ -1947,7 +1715,6 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "c111b5bd5695e56cffe5129854aa230b39c93a305372fdbb2668ca2394eea9f8"
 "checksum smallvec 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)" = "ab606a9c5e214920bb66c458cd7be8ef094f813f20fe77a54cc7dbfff220d4b7"
 "checksum stable_deref_trait 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "dba1a27d3efae4351c8051072d619e3ade2820635c3958d826bfea39d59b54c8"
-"checksum state 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7345c971d1ef21ffdbd103a75990a15eb03604fc8b8852ca8cb418ee1a099028"
 "checksum string 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d24114bfcceb867ca7f71a0d3fe45d45619ec47a6fbfa98cb14e14250bfa5d6d"
 "checksum syn 0.15.34 (registry+https://github.com/rust-lang/crates.io-index)" = "a1393e4a97a19c01e900df2aec855a29f71cf02c402e2f443b8d2747c25c5dbe"
 "checksum synstructure 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)" = "73687139bf99285483c96ac0add482c3776528beac1d97d444f6e91f203a2015"
@@ -1967,12 +1734,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum tokio-threadpool 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)" = "72558af20be886ea124595ea0f806dd5703b8958e4705429dd58b3d8231f72f2"
 "checksum tokio-timer 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)" = "2910970404ba6fa78c5539126a9ae2045d62e3713041e447f695f41405a120c6"
 "checksum tokio-trace-core 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "350c9edade9830dc185ae48ba45667a445ab59f6167ef6d0254ec9d2430d9dd3"
-"checksum toml 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)" = "758664fc71a3a69038656bee8b6be6477d2a6c315a6b81f7081f591bffa4111f"
 "checksum toml 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "b8c96d7873fa7ef8bdeb3a9cda3ac48389b4154f32b9803b4bc26220b677b039"
-"checksum traitobject 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "efd1f82c56340fdf16f2a953d7bda4f8fdffba13d93b00844c25572110b26079"
 "checksum try-lock 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "e604eb7b43c06650e854be16a2a03155743d3752dd1c943f6829e26b7a36e382"
 "checksum try_from 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "283d3b89e1368717881a9d51dad843cc435380d8109c9e47d38780a324698d8b"
-"checksum typeable 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "1410f6f91f21d1612654e7cc69193b0334f909dcf2c790c4826254fbb86f8887"
 "checksum ucd-util 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "535c204ee4d8434478593480b8f86ab45ec9aae0e83c568ca81abf0fd0e88f86"
 "checksum unicase 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7f4765f83163b74f957c797ad9253caf97f103fb064d3999aea9568d09fc8a33"
 "checksum unicase 2.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a84e5511b2a947f3ae965dcb29b13b7b1691b6e7332cf5dbc1744138d5acb7f6"
@@ -1980,13 +1744,11 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum unicode-normalization 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)" = "141339a08b982d942be2ca06ff8b076563cbe223d1befd5450716790d44e2426"
 "checksum unicode-width 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "882386231c45df4700b275c7ff55b6f3698780a650026380e72dabe76fa46526"
 "checksum unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fc72304796d0818e357ead4e000d19c9c174ab23dc11093ac919054d20a6a7fc"
-"checksum untrusted 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)" = "55cd1f4b4e96b46aeb8d4855db4a7a9bd96eeeb5c6a1ab54593328761642ce2f"
 "checksum url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)" = "dd4e7c0d531266369519a4aa4f399d748bd37043b00bde1e4ff1f60a120b355a"
 "checksum utf8-ranges 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "796f7e48bef87609f7ade7e06495a87d5cd06c7866e6a5cbfceffc558a243737"
 "checksum uuid 0.7.4 (registry+https://github.com/rust-lang/crates.io-index)" = "90dbc611eb48397705a6b0f6e917da23ae517e4d127123d2cf7674206627d32a"
 "checksum vcpkg 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)" = "def296d3eb3b12371b2c7d0e83bfe1403e4db2d7a0bba324a12b21c4ee13143d"
 "checksum version_check 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "914b1a6776c4c929a602fafd8bc742e06365d4bcbe48c30f9cca5824f70dc9dd"
-"checksum version_check 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)" = "078775d0255232fb988e6fccf26ddc9d1ac274299aaedcedce21c6f72cc533ce"
 "checksum want 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b6395efa4784b027708f7451087e647ec73cc74f5d9bc2e418404248d679a230"
 "checksum winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"
 "checksum winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)" = "f10e386af2b13e47c89e7236a7a14a086791a2b88ebad6df9bf42040195cf770"
@@ -1996,5 +1758,3 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 "checksum wincolor 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "561ed901ae465d6185fa7864d63fbd5720d0ef718366c9a4dc83cf6170d7e9ba"
 "checksum ws2_32-sys 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d59cefebd0c892fa2dd6de581e937301d8552cb44489cdff035c6187cb63fa5e"
-"checksum yansi 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d60c3b48c9cdec42fb06b3b84b5b087405e1fa1c644a1af3930e4dfafe93de48"
-"checksum yansi 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "9fc79f4a1e39857fc00c3f662cbf2651c771f00e9c15fe2abc341806bd46bd71"

Cargo.toml

@@ -7,7 +7,6 @@ edition = "2018"
 [workspace]
 
 [dependencies]
-rocket = "0.4"
 serde_json = "1"
 openssl = "0.10"
 dotenv = "0.14"
@@ -24,6 +23,7 @@ glob = "0.3.0"
 toml = "0.5.1"
 hyper = "0.12.32"
 futures-preview = { version = "=0.3.0-alpha.17", features = ["compat"] }
+uuid = { version = "0.7.4", features = ["v4"] }
 
 [dependencies.serde]
 version = "1"

src/lib.rs

@@ -2,7 +2,7 @@
 #![allow(clippy::new_without_default)]
 
 use failure::{Error, ResultExt};
-
+use std::fmt;
 use interactions::ErrorComment;
 
 pub mod config;
@@ -29,6 +29,16 @@ impl std::str::FromStr for EventName {
     }
 }
 
+impl fmt::Display for EventName {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "{}", match self {
+            EventName::IssueComment => "issue_comment",
+            EventName::Issue => "issues",
+            EventName::Other => "other",
+        })
+    }
+}
+
 #[derive(Debug)]
 pub struct WebhookError(Error);
 
@@ -53,6 +63,8 @@ pub async fn webhook(
                 .context("IssueCommentEvent failed to deserialize")
                 .map_err(Error::from)?;
 
+            log::info!("handling issue comment {:?}", payload);
+
             let event = github::Event::IssueComment(payload);
             if let Err(err) = handlers::handle(&ctx, &event).await {
                 if let Some(issue) = event.issue() {

src/logger.rs

@@ -0,0 +1,77 @@
+use log::Record;
+use std::cell::Cell;
+use std::future::Future;
+use std::pin::Pin;
+use uuid::Uuid;
+
+thread_local! {
+    static REQUEST_ID: Cell<Option<Uuid>> = Cell::new(None);
+}
+
+fn format_record_to_buf(
+    f: &mut env_logger::fmt::Formatter,
+    record: &Record,
+) -> std::io::Result<()> {
+    use std::io::Write;
+    let rid = REQUEST_ID.with(|rid| {
+        if let Some(uuid) = rid.get() {
+            format!(" request_id={}", uuid)
+        } else {
+            String::from("")
+        }
+    });
+    writeln!(
+        f,
+        "[{time} {level:<5} {module_path} {file}:{line}]{request_id} {record}",
+        time = f.precise_timestamp(),
+        request_id = rid,
+        level = record.level(),
+        module_path = record.module_path().unwrap_or(""),
+        file = record.file().unwrap_or("???"),
+        line = record.line().map(|l| l as i64).unwrap_or(-1),
+        record = record.args(),
+    )
+}
+
+pub fn init() {
+    eprintln!("setting logger");
+    log::set_boxed_logger(Box::new(
+        env_logger::Builder::from_default_env()
+            .format(format_record_to_buf)
+            .build(),
+    ))
+    .unwrap();
+    log::set_max_level(log::LevelFilter::Trace);
+    log::error!("initialized logging infra");
+}
+
+pub struct LogFuture<F> {
+    uuid: Uuid,
+    future: F,
+}
+
+impl<F: Future> Future for LogFuture<F> {
+    type Output = F::Output;
+    fn poll(
+        self: Pin<&mut Self>,
+        cx: &mut std::task::Context<'_>,
+    ) -> std::task::Poll<Self::Output> {
+        unsafe {
+            let self_ = self.get_unchecked_mut();
+            REQUEST_ID.with(|thread| {
+                let uuid = self_.uuid;
+                thread.set(Some(uuid));
+                let fut = Pin::new_unchecked(&mut self_.future);
+                let ret = fut.poll(cx);
+                thread.set(None);
+                ret
+            })
+        }
+    }
+}
+
+impl<F> LogFuture<F> {
+    pub fn new(uuid: Uuid, future: F) -> Self {
+        Self { uuid, future }
+    }
+}

src/main.rs

@@ -10,8 +10,12 @@ use hyper::{header, service::service_fn, Body, Request, Response, Server, Status
 use reqwest::r#async::Client;
 use std::{env, net::SocketAddr, sync::Arc};
 use triagebot::{github, handlers::Context, payload, EventName};
+use uuid::Uuid;
+
+mod logger;
 
 async fn serve_req(req: Request<Body>, ctx: Arc<Context>) -> Result<Response<Body>, hyper::Error> {
+    log::info!("request = {:?}", req);
     let (req, body_stream) = req.into_parts();
     if req.uri.path() != "/github-hook" {
         return Ok(Response::builder()
@@ -46,6 +50,7 @@ async fn serve_req(req: Request<Body>, ctx: Arc<Context>) -> Result<Response<Bod
             .body(Body::from("X-GitHub-Event header must be set"))
             .unwrap());
     };
+    log::debug!("event={}", event);
     let signature = if let Some(sig) = req.headers.get("X-Hub-Signature") {
         match sig.to_str().ok() {
             Some(v) => v,
@@ -62,6 +67,7 @@ async fn serve_req(req: Request<Body>, ctx: Arc<Context>) -> Result<Response<Bod
             .body(Body::from("X-Hub-Signature header must be set"))
             .unwrap());
     };
+    log::debug!("signature={}", signature);
 
     let mut c = body_stream.compat();
     let mut payload = Vec::new();
@@ -109,13 +115,25 @@ async fn run_server(addr: SocketAddr) {
         env::var("GITHUB_API_TOKEN").expect("Missing GITHUB_API_TOKEN"),
     );
     let ctx = Arc::new(Context {
-        github: gh.clone(),
         username: github::User::current(&gh).await.unwrap().login,
+        github: gh,
     });
 
     let serve_future = Server::bind(&addr).serve(move || {
         let ctx = ctx.clone();
-        service_fn(move |req| serve_req(req, ctx.clone()).boxed().compat())
+        service_fn(move |req| {
+            let ctx = ctx.clone();
+            let uuid = Uuid::new_v4();
+            logger::LogFuture::new(uuid, serve_req(req, ctx).map(move |mut resp| {
+                if let Ok(resp) = &mut resp {
+                    resp.headers_mut().insert("X-Request-Id", uuid.to_string().parse().unwrap());
+                }
+                log::info!("response = {:?}", resp);
+                resp
+            }))
+                .boxed()
+                .compat()
+        })
     });
 
     if let Err(e) = serve_future.compat().await {
@@ -125,6 +143,7 @@ async fn run_server(addr: SocketAddr) {
 
 fn main() {
     dotenv::dotenv().ok();
+    logger::init();
 
     let addr = ([0, 0, 0, 0], 8002).into();
     hyper::rt::run(run_server(addr).unit_error().boxed().compat());