diff --git a/Cargo.lock b/Cargo.lock
index e4275114b5..b5cf69c36d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2077,6 +2077,17 @@ dependencies = [
  "windows-sys 0.59.0",
 ]
 
+[[package]]
+name = "faccess"
+version = "0.2.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "59ae66425802d6a903e268ae1a08b8c38ba143520f227a205edf4e9c7e3e26d5"
+dependencies = [
+ "bitflags 1.3.2",
+ "libc",
+ "winapi",
+]
+
 [[package]]
 name = "fastrand"
 version = "2.2.0"
@@ -2206,6 +2217,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "62d91fd049c123429b018c47887d3f75a265540dd3c30ba9cb7bae9197edb03a"
 dependencies = [
  "autocfg",
+ "path_facts",
  "tokio",
 ]
 
@@ -4332,6 +4344,15 @@ version = "1.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d01a5bd0424d00070b0098dd17ebca6f961a959dead1dbcbbbc1d1cd8d3deeba"
 
+[[package]]
+name = "path_facts"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c9b66f6b972fe319c6911bb86fb9d9fc76558051d0fdcf5b8755c2cfbc79910a"
+dependencies = [
+ "faccess",
+]
+
 [[package]]
 name = "pathdiff"
 version = "0.2.3"
diff --git a/Cargo.toml b/Cargo.toml
index 5d975e87d3..958cc3417f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -46,6 +46,7 @@ sealed_test = "1.1.0"
 tempfile = { workspace = true }
 rusty-hook = "^0.11.2"
 nix = { workspace = true, features = ["process"] }
+fs-err = { workspace = true, features = ["debug", "debug_tokio", "tokio"] } # for nicer error messages
 
 mockito = "1.7"
 
diff --git a/lib/collection/Cargo.toml b/lib/collection/Cargo.toml
index ced6c1748e..ba5886a4b7 100644
--- a/lib/collection/Cargo.toml
+++ b/lib/collection/Cargo.toml
@@ -20,6 +20,7 @@ staging = []
 
 [dev-dependencies]
 criterion = { workspace = true }
+fs-err = { workspace = true, features = ["debug"] }
 proptest = { workspace = true }
 rstest = { workspace = true }
 tar = { workspace = true }
diff --git a/lib/common/common/Cargo.toml b/lib/common/common/Cargo.toml
index 88ea7bf56b..cfda6ef348 100644
--- a/lib/common/common/Cargo.toml
+++ b/lib/common/common/Cargo.toml
@@ -47,6 +47,7 @@ memory = { path = "../memory" }
 [dev-dependencies]
 common = { path = ".", features = ["testing"] }
 criterion = { workspace = true }
+fs-err = { workspace = true, features = ["debug"] }
 itertools = { workspace = true }
 rstest = { workspace = true }
 self_cell = "1.2.0"
diff --git a/lib/common/dataset/Cargo.toml b/lib/common/dataset/Cargo.toml
index 44d5411071..178b621e28 100644
--- a/lib/common/dataset/Cargo.toml
+++ b/lib/common/dataset/Cargo.toml
@@ -18,3 +18,6 @@ flate2 = { version = "1.1.4" }
 fs-err = { workspace = true }
 indicatif = { workspace = true }
 reqwest = { workspace = true }
+
+[dev-dependencies]
+fs-err = { workspace = true, features = ["debug"] }
diff --git a/lib/common/io/Cargo.toml b/lib/common/io/Cargo.toml
index 011c969532..f41fd5f0c7 100644
--- a/lib/common/io/Cargo.toml
+++ b/lib/common/io/Cargo.toml
@@ -20,3 +20,6 @@ semver = { workspace = true }
 serde = { workspace = true }
 serde_json = { workspace = true }
 thiserror = { workspace = true }
+
+[dev-dependencies]
+fs-err = { workspace = true, features = ["debug"] }
diff --git a/lib/common/memory/Cargo.toml b/lib/common/memory/Cargo.toml
index af9a04e8fd..04a5566a94 100644
--- a/lib/common/memory/Cargo.toml
+++ b/lib/common/memory/Cargo.toml
@@ -25,5 +25,6 @@ thiserror = { workspace = true }
 nix = { workspace = true }
 
 [dev-dependencies]
+fs-err = { workspace = true, features = ["debug"] }
 rand = { workspace = true }
 tempfile = { workspace = true }
diff --git a/lib/edge/Cargo.toml b/lib/edge/Cargo.toml
index a0db79cca6..141062c1ee 100644
--- a/lib/edge/Cargo.toml
+++ b/lib/edge/Cargo.toml
@@ -25,3 +25,4 @@ wal = { workspace = true }
 
 [dev-dependencies]
 anyhow = "1.0"
+fs-err = { workspace = true, features = ["debug"] }
diff --git a/lib/gridstore/Cargo.toml b/lib/gridstore/Cargo.toml
index cfbfdd1530..e647b47930 100644
--- a/lib/gridstore/Cargo.toml
+++ b/lib/gridstore/Cargo.toml
@@ -40,6 +40,7 @@ rocksdb = { version = "0.24.0", optional = true }
 [dev-dependencies]
 criterion = { workspace = true }
 csv = "1.4.0"
+fs-err = { workspace = true, features = ["debug"] }
 rstest = { workspace = true }
 proptest = { workspace = true }
 bustle = "0.5.1"
diff --git a/lib/quantization/Cargo.toml b/lib/quantization/Cargo.toml
index b51df5e0a3..b7d4ccddab 100644
--- a/lib/quantization/Cargo.toml
+++ b/lib/quantization/Cargo.toml
@@ -35,6 +35,7 @@ ordered-float = { workspace = true }
 arrayvec = "0.7.6"
 
 [dev-dependencies]
+fs-err = { workspace = true, features = ["debug"] }
 quantization = { path = ".", features = ["testing"] }
 criterion = { workspace = true }
 num_threads = "0.1.6"
diff --git a/lib/segment/Cargo.toml b/lib/segment/Cargo.toml
index 21ed58780d..3f961ef8db 100644
--- a/lib/segment/Cargo.toml
+++ b/lib/segment/Cargo.toml
@@ -25,6 +25,7 @@ clap = { workspace = true }
 criterion = { workspace = true }
 dataset = { path = "../common/dataset" }
 env_logger = "0.11"
+fs-err = { workspace = true, features = ["debug"] }
 humantime = { workspace = true }
 indicatif = { workspace = true }
 ndarray = "0.16.1"
diff --git a/lib/shard/Cargo.toml b/lib/shard/Cargo.toml
index 2bde9537ee..69f4a4c7e2 100644
--- a/lib/shard/Cargo.toml
+++ b/lib/shard/Cargo.toml
@@ -46,7 +46,7 @@ serde_json = { workspace = true }
 segment = { path = "../segment", default-features = false, features = ["testing"] }
 shard = { path = ".", default-features = false, features = ["testing"] }
 
-fs-err = { workspace = true }
+fs-err = { workspace = true, features = ["debug"] }
 proptest = { workspace = true }
 rstest = { workspace = true }
 serde_cbor = { workspace = true }
diff --git a/lib/sparse/Cargo.toml b/lib/sparse/Cargo.toml
index ca20e793a7..d683a4df46 100644
--- a/lib/sparse/Cargo.toml
+++ b/lib/sparse/Cargo.toml
@@ -38,6 +38,7 @@ log = { workspace = true }
 [dev-dependencies]
 criterion = { workspace = true }
 dataset = { path = "../common/dataset" }
+fs-err = { workspace = true, features = ["debug"] }
 generic-tests = { workspace = true }
 indicatif = { workspace = true }
 sparse = { path = ".", features = ["testing"] }
diff --git a/lib/storage/Cargo.toml b/lib/storage/Cargo.toml
index 1859b73c8d..0747a0fef8 100644
--- a/lib/storage/Cargo.toml
+++ b/lib/storage/Cargo.toml
@@ -16,6 +16,7 @@ tracing = ["dep:tracing", "api/tracing", "collection/tracing", "segment/tracing"
 staging = ["collection/staging"]
 
 [dev-dependencies]
+fs-err = { workspace = true, features = ["debug"] }
 proptest = { workspace = true }
 env_logger = "0.11"