diff --git a/.circleci/config.yml b/.circleci/config.yml
index baa0ff496..64032e659 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -258,6 +258,7 @@ jobs:
     - checkout
     - restore_cache:
         key: yarn-lock-v6-{{ checksum "ui/yarn.lock" }}
+        name: Restore yarn cache
     - run:
         command: |
           cd ui
@@ -266,6 +267,7 @@ jobs:
         name: Install UI dependencies
     - save_cache:
         key: yarn-lock-v6-{{ checksum "ui/yarn.lock" }}
+        name: Save yarn cache
         paths:
         - ui/node_modules
   build-common-layers:
@@ -585,6 +587,7 @@ jobs:
     - checkout
     - restore_cache:
         key: yarn-lock-v6-{{ checksum "ui/yarn.lock" }}
+        name: Restore yarn cache
     - attach_workspace:
         at: .
     - run:
@@ -701,6 +704,7 @@ jobs:
     - checkout
     - restore_cache:
         key: yarn-lock-v6-{{ checksum "ui/yarn.lock" }}
+        name: Restore yarn cache
     - attach_workspace:
         at: .
     - run:
@@ -726,12 +730,18 @@ jobs:
           mkdir $GOPATH 2>/dev/null || { sudo mkdir $GOPATH && sudo chmod 777 $GOPATH; }
           echo "export GOPATH='$GOPATH'" >> "$BASH_ENV"
           echo "export PATH='$PATH:$GOPATH/bin:/usr/local/go/bin'" >> "$BASH_ENV"
+          echo "export GOPROXY=off" >> "$BASH_ENV"
+          echo "export GOPRIVATE=github.com/hashicorp/*" >> "$BASH_ENV"
 
           echo "$ go version"
           go version
         name: Setup Go
         working_directory: ~/
     - checkout
+    - restore_cache:
+        keys:
+        - v1.2-{{checksum "go.sum"}}-{{checksum "sdk/go.sum"}}-{{checksum "api/go.sum"}}
+        name: Restore exact go modules cache
     - attach_workspace:
         at: .
     - run:
@@ -874,6 +884,10 @@ jobs:
     - restore_cache:
         keys:
         - go-test-cache-date-v1-{{ checksum "/tmp/go-cache-key" }}
+    - restore_cache:
+        keys:
+        - v1.2-{{checksum "go.sum"}}-{{checksum "sdk/go.sum"}}-{{checksum "api/go.sum"}}
+        name: Restore exact go modules cache
     - run:
         command: |
           set -x
@@ -956,8 +970,14 @@ jobs:
             docker cp . testcontainer:/go/src/github.com/hashicorp/vault/
             docker cp $DOCKER_CERT_PATH/ testcontainer:$DOCKER_CERT_PATH
 
+            # Copy the downloaded modules inside the container.
+            docker exec testcontainer sh -c 'mkdir -p /go/pkg'
+            docker cp "$(go env GOPATH)/pkg/mod" testcontainer:/go/pkg/mod
+
             docker exec -w /go/src/github.com/hashicorp/vault/ \
-              -e CIRCLECI -e GOCACHE=/tmp/gocache -e VAULT_CI_GO_TEST_RACE \
+              -e CIRCLECI -e VAULT_CI_GO_TEST_RACE \
+              -e GOCACHE=/tmp/gocache \
+              -e GOPROXY="off" \
               -e VAULT_LICENSE_CI \
               testcontainer \
               gotestsum --format=short-verbose \
@@ -1103,6 +1123,10 @@ jobs:
     - restore_cache:
         keys:
         - go-test-cache-date-v1-{{ checksum "/tmp/go-cache-key" }}
+    - restore_cache:
+        keys:
+        - v1.2-{{checksum "go.sum"}}-{{checksum "sdk/go.sum"}}-{{checksum "api/go.sum"}}
+        name: Restore exact go modules cache
     - run:
         command: |
           set -x
@@ -1184,8 +1208,14 @@ jobs:
             docker cp . testcontainer:/go/src/github.com/hashicorp/vault/
             docker cp $DOCKER_CERT_PATH/ testcontainer:$DOCKER_CERT_PATH
 
+            # Copy the downloaded modules inside the container.
+            docker exec testcontainer sh -c 'mkdir -p /go/pkg'
+            docker cp "$(go env GOPATH)/pkg/mod" testcontainer:/go/pkg/mod
+
             docker exec -w /go/src/github.com/hashicorp/vault/ \
-              -e CIRCLECI -e GOCACHE=/tmp/gocache -e VAULT_CI_GO_TEST_RACE \
+              -e CIRCLECI -e VAULT_CI_GO_TEST_RACE \
+              -e GOCACHE=/tmp/gocache \
+              -e GOPROXY="off" \
               -e VAULT_LICENSE_CI \
               testcontainer \
               gotestsum --format=short-verbose \
@@ -1582,6 +1612,10 @@ jobs:
     - restore_cache:
         keys:
         - go-test-cache-date-v1-{{ checksum "/tmp/go-cache-key" }}
+    - restore_cache:
+        keys:
+        - v1.2-{{checksum "go.sum"}}-{{checksum "sdk/go.sum"}}-{{checksum "api/go.sum"}}
+        name: Restore exact go modules cache
     - run:
         command: |
           set -x
@@ -1663,8 +1697,14 @@ jobs:
             docker cp . testcontainer:/go/src/github.com/hashicorp/vault/
             docker cp $DOCKER_CERT_PATH/ testcontainer:$DOCKER_CERT_PATH
 
+            # Copy the downloaded modules inside the container.
+            docker exec testcontainer sh -c 'mkdir -p /go/pkg'
+            docker cp "$(go env GOPATH)/pkg/mod" testcontainer:/go/pkg/mod
+
             docker exec -w /go/src/github.com/hashicorp/vault/ \
-              -e CIRCLECI -e GOCACHE=/tmp/gocache -e VAULT_CI_GO_TEST_RACE \
+              -e CIRCLECI -e VAULT_CI_GO_TEST_RACE \
+              -e GOCACHE=/tmp/gocache \
+              -e GOPROXY="off" \
               -e VAULT_LICENSE_CI \
               testcontainer \
               gotestsum --format=short-verbose \
@@ -2091,19 +2131,36 @@ jobs:
         paths:
         - .buildcache/packages/store
   pre-flight-checks:
-    docker:
-    - image: circleci/buildpack-deps
-    environment:
-    - CCI_VERSION: 0.1.5691
-    shell: /usr/bin/env bash -euo pipefail
+    machine: true
+    shell: /usr/bin/env bash -euo pipefail -c
+    working_directory: /go/src/github.com/hashicorp/vault
     steps:
+    - run:
+        command: |
+          [ -n "$GO_VERSION" ] || { echo "You must set GO_VERSION"; exit 1; }
+          # Install Go
+          curl -sSLO "https://dl.google.com/go/go${GO_VERSION}.linux-amd64.tar.gz"
+          sudo rm -rf /usr/local/go
+          sudo tar -C /usr/local -xzf "go${GO_VERSION}.linux-amd64.tar.gz"
+          rm -f "go${GO_VERSION}.linux-amd64.tar.gz"
+          GOPATH="/go"
+          mkdir $GOPATH 2>/dev/null || { sudo mkdir $GOPATH && sudo chmod 777 $GOPATH; }
+          echo "export GOPATH='$GOPATH'" >> "$BASH_ENV"
+          echo "export PATH='$PATH:$GOPATH/bin:/usr/local/go/bin'" >> "$BASH_ENV"
+          echo "export GOPROXY=https://proxy.golang.org,direct" >> "$BASH_ENV"
+          echo "export GOPRIVATE=github.com/hashicorp/*" >> "$BASH_ENV"
+
+          echo "$ go version"
+          go version
+        name: Setup Go
+        working_directory: ~/
     - checkout
     - run:
         command: |
-          export CCI_PATH=/tmp/circleci-cli/$CCI_VERSION
+          export CCI_PATH=/tmp/circleci-cli/$CIRCLECI_CLI_VERSION
           mkdir -p $CCI_PATH
-          NAME=circleci-cli_${CCI_VERSION}_${ARCH}
-          URL=$BASE/v${CCI_VERSION}/${NAME}.tar.gz
+          NAME=circleci-cli_${CIRCLECI_CLI_VERSION}_${ARCH}
+          URL=$BASE/v${CIRCLECI_CLI_VERSION}/${NAME}.tar.gz
           curl -sSL $URL \
             | tar --overwrite --strip-components=1 -xz -C $CCI_PATH "${NAME}/circleci"
           # Add circleci to the path for subsequent steps.
@@ -2119,6 +2176,41 @@ jobs:
         name: Install CircleCI CLI
     - run:
         command: make ci-verify
+    - add_ssh_keys:
+        fingerprints:
+        - 0e:03:77:f4:e2:c3:56:c2:53:6a:03:e1:31:91:2f:06
+    - run:
+        command: |
+          git config --global url."git@github.com:".insteadOf https://github.com/
+    - restore_cache:
+        keys:
+        - v1.2-{{checksum "go.sum"}}-{{checksum "sdk/go.sum"}}-{{checksum "api/go.sum"}}
+        - v1.2-{{checksum "go.sum"}}-{{checksum "sdk/go.sum"}}
+        - v1.2-{{checksum "go.sum"}}
+        name: Restore closest matching go modules cache
+    - run:
+        command: |
+          go mod download -json
+          ( cd sdk && go mod download -json; )
+          ( cd api && go mod download -json; )
+        name: go mod download
+    - run:
+        command: |
+          git --no-pager diff --exit-code || {
+            echo "ERROR: Files modified by go mod download, see above."
+            exit 1
+          }
+        name: Verify downloading modules did not modify any files
+    - save_cache:
+        key: v1.2-{{checksum "go.sum"}}-{{checksum "sdk/go.sum"}}-{{checksum "api/go.sum"}}
+        name: Save go modules cache
+        paths:
+        - /go/pkg/mod
+    environment:
+    - CIRCLECI_CLI_VERSION: 0.1.5546
+    - GO_TAGS: ''
+    - GO_VERSION: 1.16.5
+    - GOTESTSUM_VERSION: 0.5.2
   test-go-race-remote-docker:
     docker:
     - image: docker.mirror.hashicorp.services/circleci/golang:1.16.5-buster
@@ -2148,6 +2240,10 @@ jobs:
     - restore_cache:
         keys:
         - go-test-cache-date-v1-{{ checksum "/tmp/go-cache-key" }}
+    - restore_cache:
+        keys:
+        - v1.2-{{checksum "go.sum"}}-{{checksum "sdk/go.sum"}}-{{checksum "api/go.sum"}}
+        name: Restore exact go modules cache
     - run:
         command: |
           set -x
@@ -2230,8 +2326,14 @@ jobs:
             docker cp . testcontainer:/go/src/github.com/hashicorp/vault/
             docker cp $DOCKER_CERT_PATH/ testcontainer:$DOCKER_CERT_PATH
 
+            # Copy the downloaded modules inside the container.
+            docker exec testcontainer sh -c 'mkdir -p /go/pkg'
+            docker cp "$(go env GOPATH)/pkg/mod" testcontainer:/go/pkg/mod
+
             docker exec -w /go/src/github.com/hashicorp/vault/ \
-              -e CIRCLECI -e GOCACHE=/tmp/gocache -e VAULT_CI_GO_TEST_RACE \
+              -e CIRCLECI -e VAULT_CI_GO_TEST_RACE \
+              -e GOCACHE=/tmp/gocache \
+              -e GOPROXY="off" \
               -e VAULT_LICENSE_CI \
               testcontainer \
               gotestsum --format=short-verbose \
diff --git a/.circleci/config/commands/@caches.yml b/.circleci/config/commands/@caches.yml
new file mode 100644
index 000000000..a4c0d1bf5
--- /dev/null
+++ b/.circleci/config/commands/@caches.yml
@@ -0,0 +1,52 @@
+restore_yarn_cache:
+  steps:
+    - restore_cache:
+        name: Restore yarn cache
+        key: &YARN_LOCK_CACHE_KEY yarn-lock-v6-{{ checksum "ui/yarn.lock" }}
+save_yarn_cache:
+  steps:
+    - save_cache:
+        name: Save yarn cache
+        key: *YARN_LOCK_CACHE_KEY
+        paths:
+          - ui/node_modules
+# allows restoring go mod caches by incomplete prefix. This is useful when re-generating
+# cache, but not when running builds and tests that require an exact match.
+restore_go_mod_cache_permissive:
+  steps:
+    - restore_cache:
+        name: Restore closest matching go modules cache
+        keys:
+          - &gocachekey v1.2-{{checksum "go.sum"}}-{{checksum "sdk/go.sum"}}-{{checksum "api/go.sum"}}
+          -             v1.2-{{checksum "go.sum"}}-{{checksum "sdk/go.sum"}}
+          -             v1.2-{{checksum "go.sum"}}
+restore_go_mod_cache:
+  steps:
+    - restore_cache:
+        name: Restore exact go modules cache
+        keys:
+          - *gocachekey
+save_go_mod_cache:
+  steps:
+    - save_cache:
+        name: Save go modules cache
+        key: *gocachekey
+        paths:
+          - /go/pkg/mod
+refresh_go_mod_cache:
+  steps:
+    - restore_go_mod_cache_permissive
+    - run:
+        name: go mod download
+        command: |
+          go mod download -json
+          ( cd sdk && go mod download -json; )
+          ( cd api && go mod download -json; )
+    - run:
+        name: Verify downloading modules did not modify any files
+        command: |
+          git --no-pager diff --exit-code || {
+            echo "ERROR: Files modified by go mod download, see above."
+            exit 1
+          }
+    - save_go_mod_cache
diff --git a/.circleci/config/commands/@yarn-cache.yml b/.circleci/config/commands/@yarn-cache.yml
deleted file mode 100644
index a284d4bd8..000000000
--- a/.circleci/config/commands/@yarn-cache.yml
+++ /dev/null
@@ -1,10 +0,0 @@
-restore_yarn_cache:
-  steps:
-    - restore_cache:
-        key: &YARN_LOCK_CACHE_KEY yarn-lock-v6-{{ checksum "ui/yarn.lock" }}
-save_yarn_cache:
-  steps:
-    - save_cache:
-        key: *YARN_LOCK_CACHE_KEY
-        paths:
-          - ui/node_modules
diff --git a/.circleci/config/commands/configure-git.yml b/.circleci/config/commands/configure-git.yml
new file mode 100644
index 000000000..67fecb15f
--- /dev/null
+++ b/.circleci/config/commands/configure-git.yml
@@ -0,0 +1,6 @@
+steps:
+  - add_ssh_keys:
+      fingerprints:
+        - "0e:03:77:f4:e2:c3:56:c2:53:6a:03:e1:31:91:2f:06"
+  - run: |
+      git config --global url."git@github.com:".insteadOf https://github.com/
diff --git a/.circleci/config/commands/go_test.yml b/.circleci/config/commands/go_test.yml
index 5809d5b1b..720afeaf0 100644
--- a/.circleci/config/commands/go_test.yml
+++ b/.circleci/config/commands/go_test.yml
@@ -30,6 +30,7 @@ steps:
   - restore_cache:
       keys:
         - go-test-cache-date-v1-{{ checksum "/tmp/go-cache-key" }}
+  - restore_go_mod_cache
   - run:
       name: Run Go tests
       no_output_timeout: 60m
@@ -116,8 +117,14 @@ steps:
           docker cp . testcontainer:/go/src/github.com/hashicorp/vault/
           docker cp $DOCKER_CERT_PATH/ testcontainer:$DOCKER_CERT_PATH
 
+          # Copy the downloaded modules inside the container.
+          docker exec testcontainer sh -c 'mkdir -p /go/pkg'
+          docker cp "$(go env GOPATH)/pkg/mod" testcontainer:/go/pkg/mod
+
           docker exec -w /go/src/github.com/hashicorp/vault/ \
-            -e CIRCLECI -e GOCACHE=/tmp/gocache -e VAULT_CI_GO_TEST_RACE \
+            -e CIRCLECI -e VAULT_CI_GO_TEST_RACE \
+            -e GOCACHE=/tmp/gocache \
+            -e GOPROXY="off" \
             -e VAULT_LICENSE_CI \
             testcontainer \
             gotestsum --format=short-verbose \
diff --git a/.circleci/config/commands/setup-go.yml b/.circleci/config/commands/setup-go.yml
index fcfe4e88e..b7c515910 100644
--- a/.circleci/config/commands/setup-go.yml
+++ b/.circleci/config/commands/setup-go.yml
@@ -1,6 +1,16 @@
 ---
 description: >
   Ensure the right version of Go is installed and set GOPATH to $HOME/go.
+parameters:
+  GOPROXY:
+    description: >
+      Set GOPROXY. By default this is set to "off" meaning you have to have all modules pre-downloaded.
+    type: string
+    default: "off"
+  GOPRIVATE:
+    description: Set GOPRIVATE, defaults to github.com/hashicorp/*
+    type: string
+    default: github.com/hashicorp/*
 steps:
   - run:
       working_directory: ~/
@@ -16,6 +26,8 @@ steps:
         mkdir $GOPATH 2>/dev/null || { sudo mkdir $GOPATH && sudo chmod 777 $GOPATH; }
         echo "export GOPATH='$GOPATH'" >> "$BASH_ENV"
         echo "export PATH='$PATH:$GOPATH/bin:/usr/local/go/bin'" >> "$BASH_ENV"
+        echo "export GOPROXY=<<parameters.GOPROXY>>" >> "$BASH_ENV"
+        echo "export GOPRIVATE=<<parameters.GOPRIVATE>>" >> "$BASH_ENV"
 
         echo "$ go version"
         go version
diff --git a/.circleci/config/jobs/build-go-dev.yml b/.circleci/config/jobs/build-go-dev.yml
index 5d956f867..b193488e1 100644
--- a/.circleci/config/jobs/build-go-dev.yml
+++ b/.circleci/config/jobs/build-go-dev.yml
@@ -2,6 +2,7 @@ executor: go-machine
 steps:
   - setup-go
   - checkout
+  - restore_go_mod_cache
   - attach_workspace:
       at: .
   - run:
diff --git a/.circleci/config/jobs/pre-flight-checks.yml b/.circleci/config/jobs/pre-flight-checks.yml
index bbb44b092..f639bbd57 100644
--- a/.circleci/config/jobs/pre-flight-checks.yml
+++ b/.circleci/config/jobs/pre-flight-checks.yml
@@ -1,10 +1,9 @@
-description: Ensures nothing obvious is broken for faster failures.
-docker:
-  - image: circleci/buildpack-deps
-shell: /usr/bin/env bash -euo pipefail
-environment:
-  CCI_VERSION: 0.1.5691
+description: Ensure nothing obvious is broken, and pre-cache Go modules.
+executor: go-machine
 steps:
+  # Setup Go enabling the proxy for downloading modules.
+  - setup-go:
+      GOPROXY: https://proxy.golang.org,direct
   - checkout
   - run:
       name: Install CircleCI CLI
@@ -12,10 +11,10 @@ steps:
         ARCH: linux_amd64
         BASE: https://github.com/CircleCI-Public/circleci-cli/releases/download
       command: |
-        export CCI_PATH=/tmp/circleci-cli/$CCI_VERSION
+        export CCI_PATH=/tmp/circleci-cli/$CIRCLECI_CLI_VERSION
         mkdir -p $CCI_PATH
-        NAME=circleci-cli_${CCI_VERSION}_${ARCH}
-        URL=$BASE/v${CCI_VERSION}/${NAME}.tar.gz
+        NAME=circleci-cli_${CIRCLECI_CLI_VERSION}_${ARCH}
+        URL=$BASE/v${CIRCLECI_CLI_VERSION}/${NAME}.tar.gz
         curl -sSL $URL \
           | tar --overwrite --strip-components=1 -xz -C $CCI_PATH "${NAME}/circleci"
         # Add circleci to the path for subsequent steps.
@@ -26,3 +25,5 @@ steps:
         which circleci
         circleci version
   - run: make ci-verify
+  - configure-git
+  - refresh_go_mod_cache
diff --git a/.circleci/config/jobs/test-go-nightly.yml b/.circleci/config/jobs/test-go-nightly.yml
index cbb8794e8..11cb11913 100644
--- a/.circleci/config/jobs/test-go-nightly.yml
+++ b/.circleci/config/jobs/test-go-nightly.yml
@@ -2,6 +2,7 @@ executor: go-machine
 steps:
   - setup-go
   - checkout
+  - restore_go_mod_cache
   - go_test:
       log_dir: "/tmp/testlogs"
       save_cache: true
diff --git a/api/go.sum b/api/go.sum
index b6e144536..83549a398 100644
--- a/api/go.sum
+++ b/api/go.sum
@@ -228,6 +228,7 @@ github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5
 github.com/tv42/httpunix v0.0.0-20150427012821-b75d8614f926/go.mod h1:9ESjWnEqriFuLhtthL60Sar/7RFoluCcXsuvEwTV5KM=
 github.com/urfave/cli v0.0.0-20171014202726-7bc6a0acffa5/go.mod h1:70zkFmudgCuE/ngEzBv17Jvp/497gISqfk5gWijbERA=
 go.opencensus.io v0.22.0/go.mod h1:+kGneAE2xo2IficOXnaByMWTGM9T73dGwxeWcUqIpI8=
+go.uber.org/atomic v1.6.0/go.mod h1:sABNBOSYdrvTF6hTgEIbc7YasKWGhgEQZyfxyTvoXHQ=
 golang.org/x/crypto v0.0.0-20171113213409-9f005a07e0d3/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
@@ -237,6 +238,7 @@ golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
 golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
 golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
+golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@@ -246,6 +248,7 @@ golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190501004415-9ce7a6920f09/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190613194153-d28f0bde5980/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20190813141303-74dc4d7220e7/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20191004110552-13f9640d40b9/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200202094626-16171245cfb2/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
@@ -292,6 +295,8 @@ golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3
 golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
 golang.org/x/tools v0.0.0-20190624222133-a101b041ded4/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
+golang.org/x/tools v0.0.0-20191029041327-9cc4af7d6b2c/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=