diff --git a/Cargo.toml b/Cargo.toml
index a4b2454d3..c81f3946c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -210,6 +210,9 @@ feat_os_windows_legacy = [
     "touch",
     "whoami",
 ]
+##
+# * bypass ~ use "uu_" prefix to avoid collision with rust core 'test' crate (o/w surfaces as compiler errors during testing)
+test = [ "uu_test" ]
 
 [workspace]
 
@@ -218,6 +221,8 @@ lazy_static = { version="1.3" }
 textwrap = { version="=0.11.0", features=["term_size"] } # !maint: [2020-05-10; rivy] unstable crate using undocumented features; pinned currently, will review
 uucore = { version="0.0.2", package="uucore", git="https://github.com/uutils/uucore.git", branch="master" }
 # * uutils
+uu_test  = { optional=true, version="0.0.1", package="uu_test", path="src/uu/test" }
+#
 arch     = { optional=true, version="0.0.1", package="uu_arch", path="src/uu/arch" }
 base32   = { optional=true, version="0.0.1", package="uu_base32", path="src/uu/base32" }
 base64   = { optional=true, version="0.0.1", package="uu_base64", path="src/uu/base64" }
@@ -294,7 +299,6 @@ sync     = { optional=true, version="0.0.1", package="uu_sync", path="src/uu/syn
 tac      = { optional=true, version="0.0.1", package="uu_tac", path="src/uu/tac" }
 tail     = { optional=true, version="0.0.1", package="uu_tail", path="src/uu/tail" }
 tee      = { optional=true, version="0.0.1", package="uu_tee", path="src/uu/tee" }
-test     = { optional=true, version="0.0.1", package="uu_test", path="src/uu/test" }
 timeout  = { optional=true, version="0.0.1", package="uu_timeout", path="src/uu/timeout" }
 touch    = { optional=true, version="0.0.1", package="uu_touch", path="src/uu/touch" }
 tr       = { optional=true, version="0.0.1", package="uu_tr", path="src/uu/tr" }
diff --git a/build.rs b/build.rs
index c51ce1481..4dcac8111 100644
--- a/build.rs
+++ b/build.rs
@@ -68,6 +68,7 @@ pub fn main() {
             | "yes"
             | "false" | "true"
             | "hashsum"
+            | "uu_test"
             => {
                 // cf.write_all(format!("extern crate {krate};\n", krate = krate).as_bytes())
                 //     .unwrap();
@@ -79,6 +80,14 @@ pub fn main() {
         }
 
         match krate.as_ref() {
+            // * use "uu_" prefix as bypass method to avoid name collisions with imported crates, when necessary (eg, 'test')
+            k if k.starts_with("uu_")
+                => mf
+                    .write_all(
+                        format!("map.insert(\"{k}\", {krate}::uumain);\n", k = krate.clone().remove("uu_".len()), krate = krate)
+                            .as_bytes(),
+                    )
+                    .unwrap(),
             "arch"
             | "base32" | "base64" | "basename"
             | "cat" | "chgrp" | "chmod" | "chown" | "chroot" | "cksum" | "comm" | "cp" | "cut"
@@ -97,7 +106,7 @@ pub fn main() {
             | "paste" | "pathchk" | "pinky" | "printenv" | "printf" | "ptx" | "pwd"
             | "readlink" | "realpath" | "relpath" | "rm" | "rmdir"
             | "seq" | "shred" | "shuf" | "sleep" | "sort" | "split" | "stat" | "stdbuf" | "sum" | "sync"
-            | "tac" | "tail" | "tee" | "test" | "timeout" | "touch" | "tr" | "truncate" | "tsort" | "tty"
+            | "tac" | "tail" | "tee" | "timeout" | "touch" | "tr" | "truncate" | "tsort" | "tty"
             | "uname" | "unexpand" | "uniq" | "unlink" | "uptime" | "users"
             | "wc" | "who" | "whoami"
             | "yes"