diff --git a/.github/workflows/iroha2-dev-pr-unstable.yml b/.github/workflows/iroha2-dev-pr-unstable.yml
index 54454633d7d..911b9b7476a 100644
--- a/.github/workflows/iroha2-dev-pr-unstable.yml
+++ b/.github/workflows/iroha2-dev-pr-unstable.yml
@@ -25,4 +25,4 @@ jobs:
       - uses: actions/checkout@v2
       - uses: Swatinem/rust-cache@v1
       - name: Run tests
-        run: cargo test -p iroha_client --tests unstable_network --quiet
+        run: mold --run cargo test -p iroha_client --tests unstable_network --quiet
diff --git a/.github/workflows/iroha2-dev-pr-wasm.yaml b/.github/workflows/iroha2-dev-pr-wasm.yaml
index 7681cce3d04..add1168d143 100644
--- a/.github/workflows/iroha2-dev-pr-wasm.yaml
+++ b/.github/workflows/iroha2-dev-pr-wasm.yaml
@@ -43,4 +43,4 @@ jobs:
 
       # Tests
       - name: Run tests
-        run: mold -run cargo test --tests --quiet --no-fail-fast
+        run: mold --run cargo test --tests --quiet --no-fail-fast
diff --git a/.github/workflows/iroha2-dev-pr.yml b/.github/workflows/iroha2-dev-pr.yml
index 57409efe7c2..01daea11130 100644
--- a/.github/workflows/iroha2-dev-pr.yml
+++ b/.github/workflows/iroha2-dev-pr.yml
@@ -14,7 +14,6 @@ on:
 
 env:
   CARGO_TERM_COLOR: always
-  RUSTC_BOOTSTRAP: 1
 
 jobs:
   test:
@@ -35,7 +34,7 @@ jobs:
         working-directory: actor
         if: always()
       - name: Verify wasm smartcontracts are able to build
-        run: mold -run cargo build --target wasm32-unknown-unknown --quiet
+        run: mold --run cargo build --target wasm32-unknown-unknown --quiet
         working-directory: wasm
         env:
           RUSTC_BOOTSTRAP: 1
@@ -62,7 +61,7 @@ jobs:
       - uses: Swatinem/rust-cache@v1
       - name: Run tests
         run: |
-          mold --run cargo +nightly-2022-04-20 test \
+          mold --run cargo test \
           --quiet --workspace --no-fail-fast -- \
           --skip unstable_network --skip ui --test-threads 3
         env:
@@ -73,7 +72,7 @@ jobs:
           grcov . --binary-path ./target/debug/ -s . -t lcov --branch --ignore-not-existing --ignore "/*" -o lcov.info
         if: always()
       - name: Upload coverage to codecov.io
-        uses: codecov/codecov-action@v1
+        uses: codecov/codecov-action@v2
         if: always()
         with:
           file: lcov.info
diff --git a/.github/workflows/iroha2-dev.yml b/.github/workflows/iroha2-dev.yml
index 17ee0508766..8826defeb14 100644
--- a/.github/workflows/iroha2-dev.yml
+++ b/.github/workflows/iroha2-dev.yml
@@ -7,9 +7,9 @@ on:
 env:
   CARGO_TERM_COLOR: always
 
-  # Note jobs in this workflow are run on `push` meaning that there's
-  # no point in burning our AWS self-hosted runners' time. Hence
-  # `ubuntu-latest` and not `[self-hosted, Linux]`.
+# Note jobs in this workflow are run on `push` meaning that there's
+# no point in burning our AWS self-hosted runners' time. Hence
+# `ubuntu-latest` and not `[self-hosted, Linux]`.
 jobs:
   deploy:
     runs-on: ubuntu-latest
@@ -28,7 +28,7 @@ jobs:
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
-      - name: Build and push Iroha Docker image
+      - name: Build and push docker image
         uses: docker/build-push-action@v2
         with:
           context: .
@@ -37,7 +37,7 @@ jobs:
           build-args: |
             TARGET_DIR=release
             PROFILE=--release
-      - name: Build and push Iroha client cli Docker image
+      - name: Build and push docker image (iroha_client_cli)
         uses: docker/build-push-action@v2
         with:
           context: .
@@ -47,7 +47,7 @@ jobs:
             TARGET_DIR=release
             PROFILE=--release
             BIN=iroha_client_cli
-      - name: Build and push Iroha Crypto CLI Docker image
+      - name: Build and push docker image (kagami)
         uses: docker/build-push-action@v2
         with:
           context: .
@@ -58,7 +58,7 @@ jobs:
             PROFILE=--release
             BIN=kagami
 
-      - name: Build and push load-rs:dev docker image
+      - name: Build and push docker image (load-rs:dev)
         run: |
           sleep 10s
           echo "wait to other workflow"
@@ -97,7 +97,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: Swatinem/rust-cache@v1
       - name: Build
-        run: cargo build --release --verbose
+        run: mold --run cargo build --release --verbose
       - name: Archive build
         uses: actions/upload-artifact@v2
         with:
@@ -116,7 +116,7 @@ jobs:
       - name: Run schema generation
         run: |
           mkdir -p target/schema
-          cargo run --bin kagami -- schema > target/schema/schema.json
+          cargo run --bin kagami -- schema >target/schema/schema.json
       - name: Upload schema
         uses: actions/upload-artifact@v2
         with:
@@ -139,7 +139,7 @@ jobs:
       - name: Run release tests and save telemetry
         env:
           TELEMETRY_FILE: ../target/telemetry/release.json.lz4
-        run: cargo test -p iroha_client --all-features --release -- unstable_network || true
+        run: mold --run cargo test -p iroha_client --all-features --release -- unstable_network || true
       - name: Install script dependencies
         run: |
           apt-get update
@@ -187,7 +187,7 @@ jobs:
       - uses: Swatinem/rust-cache@v1
       - name: Run tests
         run: |
-          mold --run cargo +nightly-2022-04-20 test \
+          mold --run cargo test \
           --quiet --workspace --no-fail-fast -- \
           --skip unstable_network --skip ui --test-threads 3
         env:
@@ -198,7 +198,7 @@ jobs:
           grcov . --binary-path ./target/debug/ -s . -t lcov --branch --ignore-not-existing --ignore "/*" -o lcov.info
         if: always()
       - name: Upload coverage to codecov.io
-        uses: codecov/codecov-action@v1
+        uses: codecov/codecov-action@v2
         if: always()
         with:
           file: lcov.info
diff --git a/.github/workflows/iroha2-pr.yml b/.github/workflows/iroha2-pr.yml
index cc971bfd40f..46c74f49d63 100644
--- a/.github/workflows/iroha2-pr.yml
+++ b/.github/workflows/iroha2-pr.yml
@@ -16,10 +16,10 @@ jobs:
       - uses: actions/checkout@v2
       - uses: Swatinem/rust-cache@v1
       - name: Build Client CLI
-        run: mold -run cargo build
+        run: mold --run cargo build
         working-directory: client_cli
       - name: Build Iroha Peer
-        run: mold -run cargo build
+        run: mold --run cargo build
         working-directory: cli
       - name: Mark both binaries as executable
         run: |
@@ -52,7 +52,7 @@ jobs:
         id: buildx
         uses: docker/setup-buildx-action@v1
       - name: Build Client CLI
-        run: mold -run cargo build
+        run: mold --run cargo build
         working-directory: client_cli
       - name: Build and push Iroha Docker image
         uses: docker/build-push-action@v2
@@ -79,7 +79,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: Swatinem/rust-cache@v1
       - name: Run benchmarks
-        run: mold -run cargo bench --workspace --quiet
+        run: mold --run cargo bench --workspace --quiet
 
 # ------------------------------ SDK tests go here ------------------------
 
@@ -103,10 +103,10 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-gradle-
       - name: Build Iroha Peer
-        run: mold -run cargo build
+        run: mold --run cargo build
         working-directory: cli
       - name: Build Client CLI
-        run: mold -run cargo build
+        run: mold --run cargo build
         working-directory: client_cli
       - name: Mark both binaries as executable
         run: |
@@ -135,4 +135,4 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - name: Run long tests
-        run: cargo test --workspace --no-fail-fast -- --ignored --test-threads=1 long
+        run: mold --run cargo test --workspace --no-fail-fast -- --ignored --test-threads=1 long
diff --git a/.github/workflows/iroha2.yml b/.github/workflows/iroha2.yml
index 1e29e80f613..efd4e9901ea 100644
--- a/.github/workflows/iroha2.yml
+++ b/.github/workflows/iroha2.yml
@@ -6,13 +6,8 @@ on:
 
 env:
   CARGO_TERM_COLOR: always
-  RUSTC_BOOTSTRAP: 1
 
 jobs:
-  # Coverage is both in PR and in push pipelines so that:
-  # 1. PR can get coverage report from bot.
-  # 2. Coverage bot can have results from
-  # `iroha2-dev` to report coverage changes.
   coverage:
     runs-on: ubuntu-latest
     container:
@@ -22,7 +17,7 @@ jobs:
       - uses: Swatinem/rust-cache@v1
       - name: Run tests
         run: |
-          mold --run cargo +nightly-2022-04-20 test \
+          mold --run cargo test \
           --quiet --workspace --no-fail-fast -- \
           --skip unstable_network --skip ui --test-threads 3
         env:
@@ -33,7 +28,7 @@ jobs:
           grcov . --binary-path ./target/debug/ -s . -t lcov --branch --ignore-not-existing --ignore "/*" -o lcov.info
         if: always()
       - name: Upload coverage to codecov.io
-        uses: codecov/codecov-action@v1
+        uses: codecov/codecov-action@v2
         if: always()
         with:
           file: lcov.info
@@ -56,7 +51,7 @@ jobs:
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
-      - name: Build and push Iroha Docker image
+      - name: Build and push docker image
         uses: docker/build-push-action@v2
         with:
           context: .
@@ -65,7 +60,7 @@ jobs:
           build-args: |
             TARGET_DIR=release
             PROFILE=--release
-      - name: Build and push Iroha client cli Docker image
+      - name: Build and push docker image (iroha_client_cli)
         uses: docker/build-push-action@v2
         with:
           context: .
@@ -75,7 +70,7 @@ jobs:
             TARGET_DIR=release
             PROFILE=--release
             BIN=iroha_client_cli
-      - name: Build and push Iroha Crypto CLI Docker image
+      - name: Build and push docker image (kagami)
         uses: docker/build-push-action@v2
         with:
           context: .
@@ -86,7 +81,7 @@ jobs:
             PROFILE=--release
             BIN=kagami
 
-      - name: Build and push load-rs:release docker image
+      - name: Build and push docker image (load-rs:release)
         run: |
           sleep 10s
           echo "wait to finish other workflow"