diff --git a/src/uucore/Cargo.toml b/src/uucore/Cargo.toml
index 34101590b..db3b35004 100644
--- a/src/uucore/Cargo.toml
+++ b/src/uucore/Cargo.toml
@@ -7,6 +7,7 @@ description = "uutils ~ 'core' uutils code library (cross-platform)"
 
 homepage = "https://github.com/uutils/coreutils"
 repository = "https://github.com/uutils/coreutils/tree/master/src/uu/arch"
+# readme = "README.md"
 keywords = ["coreutils", "uutils", "cross-platform", "cli", "utility"]
 categories = ["command-line-utilities"]
 edition = "2018"
@@ -18,27 +19,25 @@ path="src/lib/lib.rs"
 dunce = "1.0.0"
 getopts = "<= 0.2.21"
 wild = "2.0.4"
-## optional
-failure = { version = "<= 0.1.1", optional = true }
-failure_derive = { version = "<= 0.1.1", optional = true }
-lazy_static = { version = "1.3", optional = true }
-nix = { version = "<= 0.13", optional = true }
-platform-info = { version = "<= 0.0.1", optional = true }
-time = { version = "<= 0.1.42", optional = true }
-## "problem" dependencies
-# * backtrace: transitive dependency via 'failure'; pin to <= v0.3.30 to avoid increasing MinSRV to v1.33.0
-backtrace = ">= 0.3.3, <= 0.3.30"
-# * data-encoding: require v2.1; but v2.2.0 breaks the build for MinSRV v1.31.0
-data-encoding = { version = "~2.1", optional = true }
-# * libc: initial utmp support added in v0.2.15; but v0.2.68 breaks the build for MinSRV v1.31.0
-libc = { version = "0.2.15, <= 0.2.66", optional = true }
+# * optional
+failure = { version="<= 0.1.1", optional=true }
+failure_derive = { version="<= 0.1.1", optional=true }
+lazy_static = { version="1.3", optional=true }
+nix = { version="<= 0.13", optional=true }
+platform-info = { version="<= 0.0.1", optional=true }
+time = { version="<= 0.1.42", optional=true }
+# * "problem" dependencies (pinned)
+data-encoding = { version="~2.1", optional=true } ## data-encoding: require v2.1; but v2.2.0 breaks the build for MinSRV v1.31.0
+libc = { version="0.2.15, <= 0.2.66", optional=true } ## libc: initial utmp support added in v0.2.15; but v0.2.68 breaks the build for MinSRV v1.31.0
+# * pinned transitive dependencies
+pin_backtrace = { version=">= 0.3.3, <= 0.3.30", package="backtrace" } ## backtrace: transitive dependency via 'failure'; pin to <= v0.3.30 to avoid increasing MinSRV to v1.33.0
 
 [target.'cfg(target_os = "redox")'.dependencies]
 termion = "1.5"
 
 [features]
 default = []
-## non-default features
+# * non-default features
 encoding = ["data-encoding", "failure", "failure_derive"]
 entries = ["libc"]
 fs = ["libc"]