diff --git a/pkgs/build-support/rust/hooks/cargo-build-hook.sh b/pkgs/build-support/rust/hooks/cargo-build-hook.sh
index 26dde914f22aa..749ebed8b01b7 100644
--- a/pkgs/build-support/rust/hooks/cargo-build-hook.sh
+++ b/pkgs/build-support/rust/hooks/cargo-build-hook.sh
@@ -1,4 +1,4 @@
-declare -a cargoBuildFlags
+# shellcheck shell=bash disable=SC2154,SC2164
 
 cargoBuildHook() {
     echo "Executing cargoBuildHook"
@@ -9,44 +9,38 @@ cargoBuildHook() {
     # separateDebugInfo.
     export "CARGO_PROFILE_${cargoBuildType@U}_STRIP"=false
 
-    if [ ! -z "${buildAndTestSubdir-}" ]; then
+    if [ -n "${buildAndTestSubdir-}" ]; then
         # ensure the output doesn't end up in the subdirectory
-        export CARGO_TARGET_DIR="$(pwd)/target"
+        CARGO_TARGET_DIR="$(pwd)/target"
+        export CARGO_TARGET_DIR
 
         pushd "${buildAndTestSubdir}"
     fi
 
+    local flagsArray=(
+        "-j" "$NIX_BUILD_CORES"
+        "--target" "@rustHostPlatformSpec@"
+        "--offline"
+    )
+
     if [ "${cargoBuildType}" != "debug" ]; then
-        cargoBuildProfileFlag="--profile ${cargoBuildType}"
+        flagsArray+=("--profile" "${cargoBuildType}")
     fi
 
     if [ -n "${cargoBuildNoDefaultFeatures-}" ]; then
-        cargoBuildNoDefaultFeaturesFlag=--no-default-features
+        flagsArray+=("--no-default-features")
     fi
 
     if [ -n "${cargoBuildFeatures-}" ]; then
-        if [ -n "$__structuredAttrs" ]; then
-            OLDIFS="$IFS"
-            IFS=','; cargoBuildFeaturesFlag="--features=${cargoBuildFeatures[*]}"
-            IFS="$OLDIFS"
-            unset OLDIFS
-        else
-            cargoBuildFeaturesFlag="--features=${cargoBuildFeatures// /,}"
-        fi
+        flagsArray+=("--features=$(concatStringsSep "," cargoBuildFeatures)")
     fi
 
-    (
-    set -x
-    @setEnv@ cargo build -j $NIX_BUILD_CORES \
-        --target @rustHostPlatformSpec@ \
-        --offline \
-        ${cargoBuildProfileFlag} \
-        ${cargoBuildNoDefaultFeaturesFlag} \
-        ${cargoBuildFeaturesFlag} \
-        ${cargoBuildFlags}
-    )
+    concatTo flagsArray cargoBuildFlags
+
+    echoCmd 'cargoBuildHook flags' "${flagsArray[@]}"
+    @setEnv@ cargo build "${flagsArray[@]}"
 
-    if [ ! -z "${buildAndTestSubdir-}" ]; then
+    if [ -n "${buildAndTestSubdir-}" ]; then
         popd
     fi
 
diff --git a/pkgs/build-support/rust/hooks/cargo-check-hook.sh b/pkgs/build-support/rust/hooks/cargo-check-hook.sh
index 96b87dbf15b45..07eae85d13ee7 100644
--- a/pkgs/build-support/rust/hooks/cargo-check-hook.sh
+++ b/pkgs/build-support/rust/hooks/cargo-check-hook.sh
@@ -1,5 +1,4 @@
-declare -a checkFlags
-declare -a cargoTestFlags
+# shellcheck shell=bash disable=SC2154,SC2164
 
 cargoCheckHook() {
     echo "Executing cargoCheckHook"
@@ -10,37 +9,37 @@ cargoCheckHook() {
         pushd "${buildAndTestSubdir}"
     fi
 
+    local flagsArray=("-j" "$NIX_BUILD_CORES")
+
     if [[ -z ${dontUseCargoParallelTests-} ]]; then
-        threads=$NIX_BUILD_CORES
+        prependToVar checkFlags "--test-threads=$NIX_BUILD_CORES"
     else
-        threads=1
+        prependToVar checkFlags "--test-threads=1"
     fi
 
     if [ "${cargoCheckType}" != "debug" ]; then
-        cargoCheckProfileFlag="--profile ${cargoCheckType}"
+        flagsArray+=("--profile" "${cargoCheckType}")
     fi
 
     if [ -n "${cargoCheckNoDefaultFeatures-}" ]; then
-        cargoCheckNoDefaultFeaturesFlag=--no-default-features
+        flagsArray+=("--no-default-features")
     fi
 
     if [ -n "${cargoCheckFeatures-}" ]; then
-        cargoCheckFeaturesFlag="--features=${cargoCheckFeatures// /,}"
+        flagsArray+=("--features=$(concatStringsSep "," cargoCheckFeatures)")
     fi
 
-    argstr="${cargoCheckProfileFlag} ${cargoCheckNoDefaultFeaturesFlag} ${cargoCheckFeaturesFlag}
-        --target @rustHostPlatformSpec@ --offline ${cargoTestFlags}"
-
-    (
-        set -x
-        cargo test \
-              -j $NIX_BUILD_CORES \
-              ${argstr} -- \
-              --test-threads=${threads} \
-              ${checkFlags} \
-              ${checkFlagsArray+"${checkFlagsArray[@]}"}
+    flagsArray+=(
+        "--target" "@rustHostPlatformSpec@"
+        "--offline"
     )
 
+    prependToVar checkFlags "--"
+    concatTo flagsArray cargoTestFlags checkFlags checkFlagsArray
+
+    echoCmd 'cargoCheckHook flags' "${flagsArray[@]}"
+    cargo test "${flagsArray[@]}"
+
     if [[ -n "${buildAndTestSubdir-}" ]]; then
         popd
     fi
diff --git a/pkgs/build-support/rust/hooks/cargo-nextest-hook.sh b/pkgs/build-support/rust/hooks/cargo-nextest-hook.sh
index 16d32513a0d01..4719d1bad8ae9 100644
--- a/pkgs/build-support/rust/hooks/cargo-nextest-hook.sh
+++ b/pkgs/build-support/rust/hooks/cargo-nextest-hook.sh
@@ -1,5 +1,4 @@
-declare -a checkFlags
-declare -a cargoTestFlags
+# shellcheck shell=bash disable=SC2154,SC2164
 
 cargoNextestHook() {
     echo "Executing cargoNextestHook"
@@ -10,35 +9,34 @@ cargoNextestHook() {
         pushd "${buildAndTestSubdir}"
     fi
 
+    local flagsArray=(
+        "--target" "@rustHostPlatformSpec@"
+        "--offline"
+    )
+
     if [[ -z ${dontUseCargoParallelTests-} ]]; then
-        threads=$NIX_BUILD_CORES
+        flagsArray+=("-j" "$NIX_BUILD_CORES")
     else
-        threads=1
+        flagsArray+=("-j" "1")
     fi
 
     if [ "${cargoCheckType}" != "debug" ]; then
-        cargoCheckProfileFlag="--cargo-profile ${cargoCheckType}"
+        flagsArray+=("--cargo-profile" "${cargoCheckType}")
     fi
 
     if [ -n "${cargoCheckNoDefaultFeatures-}" ]; then
-        cargoCheckNoDefaultFeaturesFlag=--no-default-features
+        flagsArray+=("--no-default-features")
     fi
 
     if [ -n "${cargoCheckFeatures-}" ]; then
-        cargoCheckFeaturesFlag="--features=${cargoCheckFeatures// /,}"
+        flagsArray+=("--features=$(concatStringsSep "," cargoCheckFeatures)")
     fi
 
-    argstr="${cargoCheckProfileFlag} ${cargoCheckNoDefaultFeaturesFlag} ${cargoCheckFeaturesFlag}
-        --target @rustHostPlatformSpec@ --offline ${cargoTestFlags}"
+    prependToVar checkFlags "--"
+    concatTo flagsArray cargoTestFlags checkFlags checkFlagsArray
 
-    (
-        set -x
-        cargo nextest run \
-              -j ${threads} \
-              ${argstr} -- \
-              ${checkFlags} \
-              ${checkFlagsArray+"${checkFlagsArray[@]}"}
-    )
+    echoCmd 'cargoNextestHook flags' "${flagsArray[@]}"
+    cargo nextest run "${flagsArray[@]}"
 
     if [[ -n "${buildAndTestSubdir-}" ]]; then
         popd
diff --git a/pkgs/build-support/rust/hooks/maturin-build-hook.sh b/pkgs/build-support/rust/hooks/maturin-build-hook.sh
index c1e701425f00d..2eab2124e70be 100644
--- a/pkgs/build-support/rust/hooks/maturin-build-hook.sh
+++ b/pkgs/build-support/rust/hooks/maturin-build-hook.sh
@@ -1,3 +1,5 @@
+# shellcheck shell=bash disable=SC2154,SC2164
+
 maturinBuildHook() {
     echo "Executing maturinBuildHook"
 
@@ -6,24 +8,26 @@ maturinBuildHook() {
     # Put the wheel to dist/ so that regular Python tooling can find it.
     local dist="$PWD/dist"
 
-    if [ ! -z "${buildAndTestSubdir-}" ]; then
+    if [ -n "${buildAndTestSubdir-}" ]; then
         pushd "${buildAndTestSubdir}"
     fi
 
-    (
-    set -x
-    @setEnv@ maturin build \
-        --jobs=$NIX_BUILD_CORES \
-        --offline \
-        --target @rustTargetPlatformSpec@ \
-        --manylinux off \
-        --strip \
-        --release \
-        --out "$dist" \
-        ${maturinBuildFlags-}
+    local flagsArray=(
+        "--jobs=$NIX_BUILD_CORES"
+        "--offline"
+        "--target" "@rustTargetPlatformSpec@"
+        "--manylinux" "off"
+        "--strip"
+        "--release"
+        "--out" "$dist"
     )
 
-    if [ ! -z "${buildAndTestSubdir-}" ]; then
+    concatTo flagsArray maturinBuildFlags
+
+    echoCmd 'maturinBuildHook flags' "${flagsArray[@]}"
+    @setEnv@ maturin build "${flagsArray[@]}"
+
+    if [ -n "${buildAndTestSubdir-}" ]; then
         popd
     fi
 
diff --git a/pkgs/development/tools/rust/rust-analyzer/default.nix b/pkgs/development/tools/rust/rust-analyzer/default.nix
index 6326657372c44..33480259334ac 100644
--- a/pkgs/development/tools/rust/rust-analyzer/default.nix
+++ b/pkgs/development/tools/rust/rust-analyzer/default.nix
@@ -39,7 +39,7 @@ rustPlatform.buildRustPackage rec {
 
   buildFeatures = lib.optional useMimalloc "mimalloc";
 
-  CFG_RELEASE = version;
+  env.CFG_RELEASE = version;
 
   inherit doCheck;
   preCheck = lib.optionalString doCheck ''