diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 249ab651..8657a1b8 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -256,11 +256,23 @@ cargo-audit:
 # Tests split into 3 partitions via cargo-nextest — mirrors GitHub matrix strategy
 .test-base:
   stage: test
+  tags: [pezkuwi-runner]
   needs: [clippy, check-try-runtime]
   variables:
+    CARGO_HOME: /root/.cargo
     RUSTFLAGS: "-Cdebug-assertions=y -Dwarnings"
     WASM_BUILD_NO_COLOR: "1"
     CARGO_INCREMENTAL: "0"
+  before_script:
+    - rustup show
+    - rustc --version && cargo --version
+    - rustup target add wasm32v1-none
+    - export CACHE_KEY="$(cat Cargo.lock rust-toolchain.toml | md5sum | cut -c1-12)"
+    - export CARGO_TARGET_DIR="/var/cache/cargo-target/${CACHE_KEY}/${CI_JOB_NAME}"
+    - mkdir -p "$CARGO_TARGET_DIR"
+    - find /var/cache/cargo-target -mindepth 1 -maxdepth 1 -type d ! -name "${CACHE_KEY}" -exec rm -rf {} + 2>/dev/null || true
+    - echo "CARGO_TARGET_DIR=$CARGO_TARGET_DIR (disk $(df -h /var/cache/cargo-target | tail -1 | awk '{print $3 "/" $2 " used, " $4 " free"}'))"
+  cache: []
   timeout: 90m
   rules:
     - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH
@@ -340,7 +352,20 @@ test-no-try-runtime-2:
 
 wasm-check:
   stage: test
+  tags: [pezkuwi-runner]
   needs: [check-try-runtime]
+  variables:
+    CARGO_HOME: /root/.cargo
+  before_script:
+    - rustup show
+    - rustc --version && cargo --version
+    - rustup target add wasm32v1-none
+    - export CACHE_KEY="$(cat Cargo.lock rust-toolchain.toml | md5sum | cut -c1-12)"
+    - export CARGO_TARGET_DIR="/var/cache/cargo-target/${CACHE_KEY}/${CI_JOB_NAME}"
+    - mkdir -p "$CARGO_TARGET_DIR"
+    - find /var/cache/cargo-target -mindepth 1 -maxdepth 1 -type d ! -name "${CACHE_KEY}" -exec rm -rf {} + 2>/dev/null || true
+    - echo "CARGO_TARGET_DIR=$CARGO_TARGET_DIR"
+  cache: []
   script:
     - cargo check -p pezkuwichain-runtime --locked --target wasm32v1-none
   rules:
@@ -372,13 +397,24 @@ runtime-migration:
 
 test-doc:
   stage: docs
+  tags: [pezkuwi-runner]
   needs: [clippy]
   variables:
+    CARGO_HOME: /root/.cargo
     RUSTFLAGS: "-Cdebug-assertions=y -Dwarnings"
     SKIP_WASM_BUILD: "0"
+  before_script:
+    - rustup show
+    - rustc --version && cargo --version
+    - rustup target add wasm32v1-none
+    - export CACHE_KEY="$(cat Cargo.lock rust-toolchain.toml | md5sum | cut -c1-12)"
+    - export CARGO_TARGET_DIR="/var/cache/cargo-target/${CACHE_KEY}/${CI_JOB_NAME}"
+    - mkdir -p "$CARGO_TARGET_DIR"
+    - find /var/cache/cargo-target -mindepth 1 -maxdepth 1 -type d ! -name "${CACHE_KEY}" -exec rm -rf {} + 2>/dev/null || true
+    - echo "CARGO_TARGET_DIR=$CARGO_TARGET_DIR"
+  cache: []
   timeout: 5h
   script:
-    - rustup target add wasm32v1-none
     - git config --global --add safe.directory '*'
     - |
       cargo test --doc --workspace --locked --all-features \
diff --git a/bizinikiwi/client/basic-authorship/src/lib.rs b/bizinikiwi/client/basic-authorship/src/lib.rs
index 86480c5b..5a69b51b 100644
--- a/bizinikiwi/client/basic-authorship/src/lib.rs
+++ b/bizinikiwi/client/basic-authorship/src/lib.rs
@@ -20,7 +20,7 @@
 //!
 //! # Example
 //!
-//! ```
+//! ```no_run
 //! # use pezsc_basic_authorship::ProposerFactory;
 //! # use pezsp_consensus::{Environment, Proposer};
 //! # use pezsp_runtime::generic::BlockId;