diff --git a/tools/build.sh b/tools/build.sh
index c68395a9..0d988735 100755
--- a/tools/build.sh
+++ b/tools/build.sh
@@ -213,8 +213,7 @@ rustc_minor_version="${rustc_minor_version%%.*}"
 llvm_version=$(rustc ${pre_args[@]+"${pre_args[@]}"} -Vv | (grep 'LLVM version: ' || true) | (sed 's/LLVM version: //' || true))
 llvm_version="${llvm_version%%.*}"
 host=$(rustc ${pre_args[@]+"${pre_args[@]}"} -Vv | grep 'host: ' | sed 's/host: //')
-metadata=$(cargo metadata --format-version=1 --no-deps)
-target_dir=$(jq <<<"${metadata}" -r '.target_directory')
+target_dir=$(pwd)/target
 # Do not use check here because it misses some errors such as invalid inline asm operands and LLVM codegen errors.
 subcmd=build
 if [[ -n "${TARGET_GROUP:-}" ]]; then
diff --git a/tools/no-std.sh b/tools/no-std.sh
index 84a27419..8efa9efa 100755
--- a/tools/no-std.sh
+++ b/tools/no-std.sh
@@ -90,8 +90,7 @@ rustc_target_list=$(rustc ${pre_args[@]+"${pre_args[@]}"} --print target-list)
 rustc_version=$(rustc ${pre_args[@]+"${pre_args[@]}"} -Vv | grep 'release: ' | sed 's/release: //')
 rustc_minor_version="${rustc_version#*.}"
 rustc_minor_version="${rustc_minor_version%%.*}"
-metadata=$(cargo metadata --format-version=1 --no-deps)
-target_dir=$(jq <<<"${metadata}" -r '.target_directory')
+target_dir=$(pwd)/target
 nightly=''
 if [[ "${rustc_version}" == *"nightly"* ]] || [[ "${rustc_version}" == *"dev"* ]]; then
     nightly=1
diff --git a/tools/test.sh b/tools/test.sh
index 71029e6f..27c19481 100755
--- a/tools/test.sh
+++ b/tools/test.sh
@@ -134,6 +134,7 @@ rustc_version=$(rustc ${pre_args[@]+"${pre_args[@]}"} -Vv | grep 'release: ' | s
 rustc_minor_version="${rustc_version#*.}"
 rustc_minor_version="${rustc_minor_version%%.*}"
 host=$(rustc ${pre_args[@]+"${pre_args[@]}"} -Vv | grep 'host: ' | sed 's/host: //')
+target_dir=$(pwd)/target
 nightly=''
 if [[ "${rustc_version}" == *"nightly"* ]] || [[ "${rustc_version}" == *"dev"* ]]; then
     nightly=1
@@ -260,14 +261,16 @@ run() {
     # LTO + doctests is very slow on some platforms (probably related to the fact that they compile binaries for each example)
     if [[ "${RUSTFLAGS:-}" =~ -Z( )?sanitizer=memory ]]; then
         # Workaround https://github.com/google/sanitizers/issues/558
-        CARGO_PROFILE_RELEASE_OPT_LEVEL=0 \
+        CARGO_TARGET_DIR="${target_dir}"/fat-lto \
+            CARGO_PROFILE_RELEASE_OPT_LEVEL=0 \
             CARGO_PROFILE_RELEASE_CODEGEN_UNITS=1 \
             CARGO_PROFILE_RELEASE_LTO=fat \
-            x_cargo test ${build_std[@]+"${build_std[@]}"} --release --tests --target-dir target/fat-lto "$@"
+            x_cargo test ${build_std[@]+"${build_std[@]}"} --release --tests "$@"
     else
-        CARGO_PROFILE_RELEASE_CODEGEN_UNITS=1 \
+        CARGO_TARGET_DIR="${target_dir}"/fat-lto \
+            CARGO_PROFILE_RELEASE_CODEGEN_UNITS=1 \
             CARGO_PROFILE_RELEASE_LTO=fat \
-            x_cargo test ${build_std[@]+"${build_std[@]}"} --release --tests --target-dir target/fat-lto "$@"
+            x_cargo test ${build_std[@]+"${build_std[@]}"} --release --tests "$@"
     fi
 
     # cargo-careful only supports nightly. rustc-build-sysroot doesn't work on old nightly (at least on nightly-2022-08-12 - 1.65.0-nightly).
@@ -286,14 +289,16 @@ run() {
             *-windows-gnu*) ;;
             *)
                 if [[ ${#build_std[@]} -gt 0 ]]; then
-                    RUSTFLAGS="${RUSTFLAGS:-}${flags}" \
+                    CARGO_TARGET_DIR="${target_dir}"/careful \
+                        RUSTFLAGS="${RUSTFLAGS:-}${flags}" \
                         RUSTDOCFLAGS="${RUSTDOCFLAGS:-}${flags}" \
-                        x_cargo careful test -Z doctest-xcompile ${release[@]+"${release[@]}"} ${tests[@]+"${tests[@]}"} --target-dir target/careful "$@"
+                        x_cargo careful test -Z doctest-xcompile ${release[@]+"${release[@]}"} ${tests[@]+"${tests[@]}"} "$@"
                 else
                     # -Z doctest-xcompile is already passed
-                    RUSTFLAGS="${RUSTFLAGS:-}${flags}" \
+                    CARGO_TARGET_DIR="${target_dir}"/careful \
+                        RUSTFLAGS="${RUSTFLAGS:-}${flags}" \
                         RUSTDOCFLAGS="${RUSTDOCFLAGS:-}${flags}" \
-                        x_cargo careful test ${release[@]+"${release[@]}"} ${tests[@]+"${tests[@]}"} --target-dir target/careful "$@"
+                        x_cargo careful test ${release[@]+"${release[@]}"} ${tests[@]+"${tests[@]}"} "$@"
                 fi
                 ;;
         esac