diff --git a/Cargo.lock b/Cargo.lock
index 22cbe3c..7956231 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,488 +1,478 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+version = 3
+
 [[package]]
 name = "aho-corasick"
-version = "0.7.6"
+version = "0.7.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e37cfd5e7657ada45f742d6e99ca5788580b5c529dc78faf11ece6dc702656f"
 dependencies = [
- "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr",
 ]
 
 [[package]]
 name = "backtrace"
 version = "0.3.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "924c76597f0d9ca25d762c25a4d369d51267536465dc5064bdf0eb073ed477ea"
 dependencies = [
- "backtrace-sys 0.1.32 (registry+https://github.com/rust-lang/crates.io-index)",
- "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.65 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-demangle 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "backtrace-sys",
+ "cfg-if",
+ "libc",
+ "rustc-demangle",
 ]
 
 [[package]]
 name = "backtrace-sys"
 version = "0.1.32"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5d6575f128516de27e3ce99689419835fce9643a9b215a14d2b5b685be018491"
 dependencies = [
- "cc 1.0.46 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.65 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc",
+ "libc",
 ]
 
 [[package]]
 name = "base64"
 version = "0.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0b25d992356d2eb0ed82172f5248873db5560c4721f564b13cb5193bda5e668e"
 dependencies = [
- "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "byteorder",
 ]
 
 [[package]]
 name = "blockchain-traits"
 version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "eae7ec4d0280003585c6418bb05a4552eaead692832f58067f3d05b09c4cef1b"
 dependencies = [
- "oasis-types 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "oasis-types",
 ]
 
 [[package]]
 name = "byteorder"
 version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a7c3dd8985a7111efc5c80b44e23ecdd8c007de8ade3b96595387e812b957cf5"
 
 [[package]]
 name = "c2-chacha"
 version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "214238caa1bf3a496ec3392968969cab8549f96ff30652c9e56885329315f6bb"
 dependencies = [
- "ppv-lite86 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ppv-lite86",
 ]
 
 [[package]]
 name = "cc"
 version = "1.0.46"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0213d356d3c4ea2c18c40b037c3be23cd639825c18f25ee670ac7813beeef99c"
 
 [[package]]
 name = "cfg-if"
 version = "0.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
 
 [[package]]
 name = "crunchy"
 version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7a81dae078cea95a014a339291cec439d2f232ebe854a9d672b796c6afafa9b7"
 
 [[package]]
 name = "derive_more"
 version = "0.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7a141330240c921ec6d074a3e188a7c7ef95668bb95e7d44fa0e5778ec2a7afe"
 dependencies = [
- "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 0.15.44 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static",
+ "proc-macro2 0.4.30",
+ "quote 0.6.13",
+ "regex",
+ "rustc_version",
+ "syn 0.15.44",
 ]
 
 [[package]]
 name = "failure"
 version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f8273f13c977665c5db7eb2b99ae520952fe5ac831ae4cd09d80c4c7042b5ed9"
 dependencies = [
- "backtrace 0.3.40 (registry+https://github.com/rust-lang/crates.io-index)",
- "failure_derive 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "backtrace",
+ "failure_derive",
 ]
 
 [[package]]
 name = "failure_derive"
 version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0bc225b78e0391e4b8683440bf2e63c2deeeb2ce5189eab46e2b68c6d3725d08"
 dependencies = [
- "proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "synstructure 0.12.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.6",
+ "quote 1.0.2",
+ "syn 1.0.7",
+ "synstructure",
 ]
 
 [[package]]
 name = "getrandom"
 version = "0.1.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e7db7ca94ed4cd01190ceee0d8a8052f08a247aa1b469a7f68c6a3b71afcf407"
 dependencies = [
- "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.65 (registry+https://github.com/rust-lang/crates.io-index)",
- "wasi 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if",
+ "libc",
+ "wasi",
 ]
 
 [[package]]
 name = "half"
 version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ff54597ea139063f4225f1ec47011b03c9de4a486957ff3fc506881dac951d0"
 
 [[package]]
 name = "hex"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "023b39be39e3a2da62a94feb433e91e8bcd37676fbc8bea371daf52b7a769a3e"
 
 [[package]]
 name = "lazy_static"
 version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
 version = "0.2.65"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1a31a0627fdf1f6a39ec0dd577e101440b7db22672c0901fe00a9a6fbb5c24e8"
 
 [[package]]
 name = "map_vec"
 version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "70bde7e5afb253684214427566ddf703d94fa3fe49916c650ecc0e43f6e21089"
 dependencies = [
- "serde 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde",
 ]
 
 [[package]]
 name = "memchain"
 version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "43f2685473e848a08bb277b9d8afb0d7f47400763b428f2f267de6f41d49f417"
 dependencies = [
- "blockchain-traits 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "oasis-types 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "blockchain-traits",
+ "oasis-types",
 ]
 
 [[package]]
 name = "memchr"
-version = "2.2.1"
+version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
 
 [[package]]
 name = "oasis-macros"
 version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "216d8626ba4ac3aeff960eebc777e54091ceba844f28111d81dd6d7b2f08889a"
 dependencies = [
- "proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "tiny-keccak 1.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.6",
+ "quote 1.0.2",
+ "syn 1.0.7",
+ "tiny-keccak",
 ]
 
 [[package]]
 name = "oasis-std"
 version = "0.2.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "af3d61e7481b7a4b53e77b6c156da3b4f8f39a469769f628ca554bba5cea291f"
 dependencies = [
- "base64 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "blockchain-traits 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "failure 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "hex 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "oasis-macros 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "oasis-types 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_cbor 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "tiny-keccak 1.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "wasi 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "base64",
+ "blockchain-traits",
+ "cfg-if",
+ "failure",
+ "hex",
+ "oasis-macros",
+ "oasis-types",
+ "serde",
+ "serde_cbor",
+ "tiny-keccak",
+ "wasi",
 ]
 
 [[package]]
 name = "oasis-test"
 version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "559bd9c8e14989d51228fd58b98d5e610d0257c3662dc8421cec761128e6ad7c"
 dependencies = [
- "blockchain-traits 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "memchain 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "oasis-macros 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "oasis-types 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "blockchain-traits",
+ "memchain",
+ "oasis-macros",
+ "oasis-types",
 ]
 
 [[package]]
 name = "oasis-types"
 version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "751b6eebe5f32bb7fbd26224bdfc071c9a06047fe1469fe85503c11e12002555"
 dependencies = [
- "derive_more 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "hex 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
+ "derive_more",
+ "hex",
+ "serde",
 ]
 
 [[package]]
 name = "ppv-lite86"
 version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "74490b50b9fbe561ac330df47c08f3f33073d2d00c150f719147d7c54522fa1b"
 
 [[package]]
 name = "proc-macro2"
 version = "0.4.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cf3d2011ab5c909338f7887f4fc896d35932e29146c12c8d01da6b22a80ba759"
 dependencies = [
- "unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-xid 0.1.0",
 ]
 
 [[package]]
 name = "proc-macro2"
 version = "1.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9c9e470a8dc4aeae2dee2f335e8f533e2d4b347e1434e5671afc49b054592f27"
 dependencies = [
- "unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-xid 0.2.0",
 ]
 
 [[package]]
 name = "quote"
 version = "0.6.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6ce23b6b870e8f94f81fb0a363d65d86675884b34a09043c81e5562f11c1f8e1"
 dependencies = [
- "proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 0.4.30",
 ]
 
 [[package]]
 name = "quote"
 version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "053a8c8bcc71fcce321828dc897a98ab9760bef03a4fc36693c231e5b3216cfe"
 dependencies = [
- "proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.6",
 ]
 
 [[package]]
 name = "rand"
 version = "0.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3ae1b169243eaf61759b8475a998f0a385e42042370f3a7dbaf35246eacc8412"
 dependencies = [
- "getrandom 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.65 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_chacha 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_hc 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "getrandom",
+ "libc",
+ "rand_chacha",
+ "rand_core",
+ "rand_hc",
 ]
 
 [[package]]
 name = "rand_chacha"
 version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "03a2a90da8c7523f554344f921aa97283eadf6ac484a6d2a7d0212fa7f8d6853"
 dependencies = [
- "c2-chacha 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "c2-chacha",
+ "rand_core",
 ]
 
 [[package]]
 name = "rand_core"
 version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "90bde5296fc891b0cef12a6d03ddccc162ce7b2aff54160af9338f8d40df6d19"
 dependencies = [
- "getrandom 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "getrandom",
 ]
 
 [[package]]
 name = "rand_hc"
 version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ca3129af7b92a17112d59ad498c6f81eaf463253766b90396d39ea7a39d6613c"
 dependencies = [
- "rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_core",
 ]
 
 [[package]]
 name = "rand_pcg"
 version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "16abd0c1b639e9eb4d7c50c0b8100b0d0f849be2349829c740fe8e6eb4816429"
 dependencies = [
- "rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_core",
 ]
 
 [[package]]
 name = "regex"
-version = "1.3.1"
+version = "1.5.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d83f127d94bdbcda4c8cc2e50f6f84f4b611f69c902699ca385a39c3a75f9ff1"
 dependencies = [
- "aho-corasick 0.7.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex-syntax 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "aho-corasick",
+ "memchr",
+ "regex-syntax",
 ]
 
 [[package]]
 name = "regex-syntax"
-version = "0.6.12"
+version = "0.6.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "49b3de9ec5dc0a3417da371aab17d729997c15010e7fd24ff707773a33bddb64"
 
 [[package]]
 name = "rustc-demangle"
 version = "0.1.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4c691c0e608126e00913e33f0ccf3727d5fc84573623b8d65b2df340b5201783"
 
 [[package]]
 name = "rustc_version"
 version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a"
 dependencies = [
- "semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "semver",
 ]
 
 [[package]]
 name = "sealed_auction"
 version = "0.1.0"
 dependencies = [
- "map_vec 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "oasis-std 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "oasis-test 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_pcg 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
+ "map_vec",
+ "oasis-std",
+ "oasis-test",
+ "rand",
+ "rand_pcg",
+ "serde",
 ]
 
 [[package]]
 name = "semver"
 version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1d7eb9ef2c18661902cc47e535f9bc51b78acd254da71d375c2f6720d9a40403"
 dependencies = [
- "semver-parser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "semver-parser",
 ]
 
 [[package]]
 name = "semver-parser"
 version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
 
 [[package]]
 name = "serde"
 version = "1.0.102"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0c4b39bd9b0b087684013a792c59e3e07a46a01d2322518d8a1104641a0b1be0"
 dependencies = [
- "serde_derive 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive",
 ]
 
 [[package]]
 name = "serde_cbor"
 version = "0.10.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f7081ed758ec726a6ed8ee7e92f5d3f6e6f8c3901b1f972e3a4a2f2599fad14f"
 dependencies = [
- "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "half 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
+ "byteorder",
+ "half",
+ "serde",
 ]
 
 [[package]]
 name = "serde_derive"
 version = "1.0.102"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ca13fc1a832f793322228923fbb3aba9f3f44444898f835d31ad1b74fa0a2bf8"
 dependencies = [
- "proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.6",
+ "quote 1.0.2",
+ "syn 1.0.7",
 ]
 
 [[package]]
 name = "syn"
 version = "0.15.44"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ca4b3b69a77cbe1ffc9e198781b7acb0c7365a883670e8f1c1bc66fba79a5c5"
 dependencies = [
- "proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 0.4.30",
+ "quote 0.6.13",
+ "unicode-xid 0.1.0",
 ]
 
 [[package]]
 name = "syn"
 version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0e7bedb3320d0f3035594b0b723c8a28d7d336a3eda3881db79e61d676fb644c"
 dependencies = [
- "proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.6",
+ "quote 1.0.2",
+ "unicode-xid 0.2.0",
 ]
 
 [[package]]
 name = "synstructure"
 version = "0.12.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3f085a5855930c0441ca1288cf044ea4aecf4f43a91668abdb870b4ba546a203"
 dependencies = [
- "proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "thread_local"
-version = "0.3.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.6",
+ "quote 1.0.2",
+ "syn 1.0.7",
+ "unicode-xid 0.2.0",
 ]
 
 [[package]]
 name = "tiny-keccak"
 version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1d8a021c69bb74a44ccedb824a046447e2c84a01df9e5c20779750acb38e11b2"
 dependencies = [
- "crunchy 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crunchy",
 ]
 
 [[package]]
 name = "unicode-xid"
 version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fc72304796d0818e357ead4e000d19c9c174ab23dc11093ac919054d20a6a7fc"
 
 [[package]]
 name = "unicode-xid"
 version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "826e7639553986605ec5979c7dd957c7895e93eabed50ab2ffa7f6128a75097c"
 
 [[package]]
 name = "wasi"
 version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[metadata]
-"checksum aho-corasick 0.7.6 (registry+https://github.com/rust-lang/crates.io-index)" = "58fb5e95d83b38284460a5fda7d6470aa0b8844d283a0b614b8535e880800d2d"
-"checksum backtrace 0.3.40 (registry+https://github.com/rust-lang/crates.io-index)" = "924c76597f0d9ca25d762c25a4d369d51267536465dc5064bdf0eb073ed477ea"
-"checksum backtrace-sys 0.1.32 (registry+https://github.com/rust-lang/crates.io-index)" = "5d6575f128516de27e3ce99689419835fce9643a9b215a14d2b5b685be018491"
-"checksum base64 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)" = "0b25d992356d2eb0ed82172f5248873db5560c4721f564b13cb5193bda5e668e"
-"checksum blockchain-traits 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "eae7ec4d0280003585c6418bb05a4552eaead692832f58067f3d05b09c4cef1b"
-"checksum byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "a7c3dd8985a7111efc5c80b44e23ecdd8c007de8ade3b96595387e812b957cf5"
-"checksum c2-chacha 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "214238caa1bf3a496ec3392968969cab8549f96ff30652c9e56885329315f6bb"
-"checksum cc 1.0.46 (registry+https://github.com/rust-lang/crates.io-index)" = "0213d356d3c4ea2c18c40b037c3be23cd639825c18f25ee670ac7813beeef99c"
-"checksum cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)" = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
-"checksum crunchy 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7a81dae078cea95a014a339291cec439d2f232ebe854a9d672b796c6afafa9b7"
-"checksum derive_more 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7a141330240c921ec6d074a3e188a7c7ef95668bb95e7d44fa0e5778ec2a7afe"
-"checksum failure 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "f8273f13c977665c5db7eb2b99ae520952fe5ac831ae4cd09d80c4c7042b5ed9"
-"checksum failure_derive 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "0bc225b78e0391e4b8683440bf2e63c2deeeb2ce5189eab46e2b68c6d3725d08"
-"checksum getrandom 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)" = "e7db7ca94ed4cd01190ceee0d8a8052f08a247aa1b469a7f68c6a3b71afcf407"
-"checksum half 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "9ff54597ea139063f4225f1ec47011b03c9de4a486957ff3fc506881dac951d0"
-"checksum hex 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "023b39be39e3a2da62a94feb433e91e8bcd37676fbc8bea371daf52b7a769a3e"
-"checksum lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
-"checksum libc 0.2.65 (registry+https://github.com/rust-lang/crates.io-index)" = "1a31a0627fdf1f6a39ec0dd577e101440b7db22672c0901fe00a9a6fbb5c24e8"
-"checksum map_vec 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)" = "70bde7e5afb253684214427566ddf703d94fa3fe49916c650ecc0e43f6e21089"
-"checksum memchain 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "43f2685473e848a08bb277b9d8afb0d7f47400763b428f2f267de6f41d49f417"
-"checksum memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "88579771288728879b57485cc7d6b07d648c9f0141eb955f8ab7f9d45394468e"
-"checksum oasis-macros 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "216d8626ba4ac3aeff960eebc777e54091ceba844f28111d81dd6d7b2f08889a"
-"checksum oasis-std 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)" = "af3d61e7481b7a4b53e77b6c156da3b4f8f39a469769f628ca554bba5cea291f"
-"checksum oasis-test 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "559bd9c8e14989d51228fd58b98d5e610d0257c3662dc8421cec761128e6ad7c"
-"checksum oasis-types 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "751b6eebe5f32bb7fbd26224bdfc071c9a06047fe1469fe85503c11e12002555"
-"checksum ppv-lite86 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)" = "74490b50b9fbe561ac330df47c08f3f33073d2d00c150f719147d7c54522fa1b"
-"checksum proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)" = "cf3d2011ab5c909338f7887f4fc896d35932e29146c12c8d01da6b22a80ba759"
-"checksum proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)" = "9c9e470a8dc4aeae2dee2f335e8f533e2d4b347e1434e5671afc49b054592f27"
-"checksum quote 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)" = "6ce23b6b870e8f94f81fb0a363d65d86675884b34a09043c81e5562f11c1f8e1"
-"checksum quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "053a8c8bcc71fcce321828dc897a98ab9760bef03a4fc36693c231e5b3216cfe"
-"checksum rand 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)" = "3ae1b169243eaf61759b8475a998f0a385e42042370f3a7dbaf35246eacc8412"
-"checksum rand_chacha 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "03a2a90da8c7523f554344f921aa97283eadf6ac484a6d2a7d0212fa7f8d6853"
-"checksum rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "90bde5296fc891b0cef12a6d03ddccc162ce7b2aff54160af9338f8d40df6d19"
-"checksum rand_hc 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ca3129af7b92a17112d59ad498c6f81eaf463253766b90396d39ea7a39d6613c"
-"checksum rand_pcg 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "16abd0c1b639e9eb4d7c50c0b8100b0d0f849be2349829c740fe8e6eb4816429"
-"checksum regex 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "dc220bd33bdce8f093101afe22a037b8eb0e5af33592e6a9caafff0d4cb81cbd"
-"checksum regex-syntax 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)" = "11a7e20d1cce64ef2fed88b66d347f88bd9babb82845b2b858f3edbf59a4f716"
-"checksum rustc-demangle 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)" = "4c691c0e608126e00913e33f0ccf3727d5fc84573623b8d65b2df340b5201783"
-"checksum rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a"
-"checksum semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1d7eb9ef2c18661902cc47e535f9bc51b78acd254da71d375c2f6720d9a40403"
-"checksum semver-parser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
-"checksum serde 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)" = "0c4b39bd9b0b087684013a792c59e3e07a46a01d2322518d8a1104641a0b1be0"
-"checksum serde_cbor 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)" = "f7081ed758ec726a6ed8ee7e92f5d3f6e6f8c3901b1f972e3a4a2f2599fad14f"
-"checksum serde_derive 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)" = "ca13fc1a832f793322228923fbb3aba9f3f44444898f835d31ad1b74fa0a2bf8"
-"checksum syn 0.15.44 (registry+https://github.com/rust-lang/crates.io-index)" = "9ca4b3b69a77cbe1ffc9e198781b7acb0c7365a883670e8f1c1bc66fba79a5c5"
-"checksum syn 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)" = "0e7bedb3320d0f3035594b0b723c8a28d7d336a3eda3881db79e61d676fb644c"
-"checksum synstructure 0.12.1 (registry+https://github.com/rust-lang/crates.io-index)" = "3f085a5855930c0441ca1288cf044ea4aecf4f43a91668abdb870b4ba546a203"
-"checksum thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c6b53e329000edc2b34dbe8545fd20e55a333362d0a321909685a19bd28c3f1b"
-"checksum tiny-keccak 1.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1d8a021c69bb74a44ccedb824a046447e2c84a01df9e5c20779750acb38e11b2"
-"checksum unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fc72304796d0818e357ead4e000d19c9c174ab23dc11093ac919054d20a6a7fc"
-"checksum unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "826e7639553986605ec5979c7dd957c7895e93eabed50ab2ffa7f6128a75097c"
-"checksum wasi 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b89c3ce4ce14bdc6fb6beaf9ec7928ca331de5df7e5ea278375642a2f478570d"
+checksum = "b89c3ce4ce14bdc6fb6beaf9ec7928ca331de5df7e5ea278375642a2f478570d"