docs: Pin `mdbook` to v0.4.40 (#35380)

Marshall Bowers created 

This PR pins `mdbook` to v0.4.40 to fix an issue with sidebar links
having some of their path segments duplicated (e.g.,
`http://localhost:3000/extensions/extensions/developing-extensions.html`.

For reference:

-
https://zed-industries.slack.com/archives/C04S5TU0RSN/p1745439470378339?thread_ts=1745428671.190059&cid=C04S5TU0RSN
-
https://zed-industries.slack.com/archives/C04S5TU0RSN/p1753922478290399

Release Notes:

- N/A

Change summary

Cargo.lock                          | 168 ++++++++++--------------------
crates/docs_preprocessor/Cargo.toml |   4 
tooling/workspace-hack/Cargo.toml   |   4 
3 files changed, 64 insertions(+), 112 deletions(-)

Detailed changes

Cargo.lock 🔗 

@@ -4291,41 +4291,6 @@ dependencies = [
  "workspace-hack",
 ]
 
-[[package]]
-name = "darling"
-version = "0.20.11"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fc7f46116c46ff9ab3eb1597a45688b6715c6e628b5c133e288e709a29bcb4ee"
-dependencies = [
- "darling_core",
- "darling_macro",
-]
-
-[[package]]
-name = "darling_core"
-version = "0.20.11"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0d00b9596d185e565c2207a0b01f8bd1a135483d02d9b7b0a54b11da8d53412e"
-dependencies = [
- "fnv",
- "ident_case",
- "proc-macro2",
- "quote",
- "strsim",
- "syn 2.0.101",
-]
-
-[[package]]
-name = "darling_macro"
-version = "0.20.11"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fc34b93ccb385b40dc71c6fceac4b2ad23662c7eeb248cf10d529b7e055b6ead"
-dependencies = [
- "darling_core",
- "quote",
- "syn 2.0.101",
-]
-
 [[package]]
 name = "dashmap"
 version = "5.5.3"
@@ -4541,37 +4506,6 @@ dependencies = [
  "serde",
 ]
 
-[[package]]
-name = "derive_builder"
-version = "0.20.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "507dfb09ea8b7fa618fcf76e953f4f5e192547945816d5358edffe39f6f94947"
-dependencies = [
- "derive_builder_macro",
-]
-
-[[package]]
-name = "derive_builder_core"
-version = "0.20.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2d5bcf7b024d6835cfb3d473887cd966994907effbe9227e8c8219824d06c4e8"
-dependencies = [
- "darling",
- "proc-macro2",
- "quote",
- "syn 2.0.101",
-]
-
-[[package]]
-name = "derive_builder_macro"
-version = "0.20.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ab63b0e2bf4d5928aff72e83a7dace85d7bba5fe12dcc3c5a572d78caffd3f3c"
-dependencies = [
- "derive_builder_core",
- "syn 2.0.101",
-]
-
 [[package]]
 name = "derive_more"
 version = "0.99.19"
@@ -5950,7 +5884,7 @@ dependencies = [
  "ignore",
  "libc",
  "log",
- "notify",
+ "notify 8.0.0",
  "objc",
  "parking_lot",
  "paths",
@@ -7507,18 +7441,16 @@ dependencies = [
 
 [[package]]
 name = "handlebars"
-version = "6.3.2"
+version = "5.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "759e2d5aea3287cb1190c8ec394f42866cb5bf74fcbf213f354e3c856ea26098"
+checksum = "d08485b96a0e6393e9e4d1b8d48cf74ad6c063cd905eb33f42c1ce3f0377539b"
 dependencies = [
- "derive_builder",
  "log",
- "num-order",
  "pest",
  "pest_derive",
  "serde",
  "serde_json",
- "thiserror 2.0.12",
+ "thiserror 1.0.69",
 ]
 
 [[package]]
@@ -8189,12 +8121,6 @@ version = "2.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "25a2bc672d1148e28034f176e01fffebb08b35768468cc954630da77a1449005"
 
-[[package]]
-name = "ident_case"
-version = "1.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b9e0384b61958566e926dc50660321d12159025e767c18e043daf26b70104c39"
-
 [[package]]
 name = "idna"
 version = "1.0.3"
@@ -8413,6 +8339,17 @@ dependencies = [
  "zeta",
 ]
 
+[[package]]
+name = "inotify"
+version = "0.9.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f8069d3ec154eb856955c1c0fbffefbf5f3c40a104ec912d4797314c1801abff"
+dependencies = [
+ "bitflags 1.3.2",
+ "inotify-sys",
+ "libc",
+]
+
 [[package]]
 name = "inotify"
 version = "0.11.0"
@@ -8566,7 +8503,7 @@ dependencies = [
  "fnv",
  "lazy_static",
  "libc",
- "mio",
+ "mio 1.0.3",
  "rand 0.8.5",
  "serde",
  "tempfile",
@@ -10006,9 +9943,9 @@ dependencies = [
 
 [[package]]
 name = "mdbook"
-version = "0.4.48"
+version = "0.4.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8b6fbb4ac2d9fd7aa987c3510309ea3c80004a968d063c42f0d34fea070817c1"
+checksum = "b45a38e19bd200220ef07c892b0157ad3d2365e5b5a267ca01ad12182491eea5"
 dependencies = [
  "ammonia",
  "anyhow",
@@ -10018,12 +9955,11 @@ dependencies = [
  "elasticlunr-rs",
  "env_logger 0.11.8",
  "futures-util",
- "handlebars 6.3.2",
- "hex",
+ "handlebars 5.1.2",
  "ignore",
  "log",
  "memchr",
- "notify",
+ "notify 6.1.1",
  "notify-debouncer-mini",
  "once_cell",
  "opener",
@@ -10032,7 +9968,6 @@ dependencies = [
  "regex",
  "serde",
  "serde_json",
- "sha2",
  "shlex",
  "tempfile",
  "tokio",
@@ -10175,6 +10110,18 @@ version = "0.5.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e53debba6bda7a793e5f99b8dacf19e626084f525f7829104ba9898f367d85ff"
 
+[[package]]
+name = "mio"
+version = "0.8.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a4a650543ca06a924e8b371db273b2756685faae30f8487da1b56505a8f78b0c"
+dependencies = [
+ "libc",
+ "log",
+ "wasi 0.11.0+wasi-snapshot-preview1",
+ "windows-sys 0.48.0",
+]
+
 [[package]]
 name = "mio"
 version = "1.0.3"
@@ -10521,6 +10468,25 @@ dependencies = [
  "zed_actions",
 ]
 
+[[package]]
+name = "notify"
+version = "6.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6205bd8bb1e454ad2e27422015fb5e4f2bcc7e08fa8f27058670d208324a4d2d"
+dependencies = [
+ "bitflags 2.9.0",
+ "crossbeam-channel",
+ "filetime",
+ "fsevent-sys 4.1.0",
+ "inotify 0.9.6",
+ "kqueue",
+ "libc",
+ "log",
+ "mio 0.8.11",
+ "walkdir",
+ "windows-sys 0.48.0",
+]
+
 [[package]]
 name = "notify"
 version = "8.0.0"
@@ -10529,11 +10495,11 @@ dependencies = [
  "bitflags 2.9.0",
  "filetime",
  "fsevent-sys 4.1.0",
- "inotify",
+ "inotify 0.11.0",
  "kqueue",
  "libc",
  "log",
- "mio",
+ "mio 1.0.3",
  "notify-types",
  "walkdir",
  "windows-sys 0.59.0",
@@ -10541,14 +10507,13 @@ dependencies = [
 
 [[package]]
 name = "notify-debouncer-mini"
-version = "0.6.0"
+version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a689eb4262184d9a1727f9087cd03883ea716682ab03ed24efec57d7716dccb8"
+checksum = "5d40b221972a1fc5ef4d858a2f671fb34c75983eb385463dff3780eeff6a9d43"
 dependencies = [
+ "crossbeam-channel",
  "log",
- "notify",
- "notify-types",
- "tempfile",
+ "notify 6.1.1",
 ]
 
 [[package]]
@@ -10688,21 +10653,6 @@ dependencies = [
  "num-traits",
 ]
 
-[[package]]
-name = "num-modular"
-version = "0.6.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "17bb261bf36fa7d83f4c294f834e91256769097b3cb505d44831e0a179ac647f"
-
-[[package]]
-name = "num-order"
-version = "1.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "537b596b97c40fcf8056d153049eb22f481c17ebce72a513ec9286e4986d1bb6"
-dependencies = [
- "num-modular",
-]
-
 [[package]]
 name = "num-rational"
 version = "0.4.2"
@@ -16616,7 +16566,7 @@ dependencies = [
  "backtrace",
  "bytes 1.10.1",
  "libc",
- "mio",
+ "mio 1.0.3",
  "parking_lot",
  "pin-project-lite",
  "signal-hook-registry",
@@ -19793,7 +19743,7 @@ dependencies = [
  "md-5",
  "memchr",
  "miniz_oxide",
- "mio",
+ "mio 1.0.3",
  "naga",
  "nix 0.29.0",
  "nom",

crates/docs_preprocessor/Cargo.toml 🔗 

@@ -9,7 +9,9 @@ license = "GPL-3.0-or-later"
 anyhow.workspace = true
 command_palette.workspace = true
 gpui.workspace = true
-mdbook = "0.4.40"
+# We are specifically pinning this version of mdbook, as later versions introduce issues with double-nested subdirectories.
+# Ask @maxdeviant about this before bumping.
+mdbook = "= 0.4.40"
 regex.workspace = true
 serde.workspace = true
 serde_json.workspace = true

tooling/workspace-hack/Cargo.toml 🔗 

@@ -571,7 +571,7 @@ windows-core = { version = "0.61" }
 windows-numerics = { version = "0.2" }
 windows-sys-73dcd821b1037cfd = { package = "windows-sys", version = "0.59", features = ["Wdk_Foundation", "Wdk_Storage_FileSystem", "Win32_Globalization", "Win32_NetworkManagement_IpHelper", "Win32_Networking_WinSock", "Win32_Security_Authentication_Identity", "Win32_Security_Credentials", "Win32_Security_Cryptography", "Win32_Storage_FileSystem", "Win32_System_Com", "Win32_System_Console", "Win32_System_Diagnostics_Debug", "Win32_System_IO", "Win32_System_Ioctl", "Win32_System_Kernel", "Win32_System_LibraryLoader", "Win32_System_Memory", "Win32_System_Performance", "Win32_System_Pipes", "Win32_System_Registry", "Win32_System_SystemInformation", "Win32_System_SystemServices", "Win32_System_Threading", "Win32_System_Time", "Win32_System_WindowsProgramming", "Win32_UI_Input_KeyboardAndMouse", "Win32_UI_Shell", "Win32_UI_WindowsAndMessaging"] }
 windows-sys-b21d60becc0929df = { package = "windows-sys", version = "0.52", features = ["Wdk_Foundation", "Wdk_Storage_FileSystem", "Wdk_System_IO", "Win32_Foundation", "Win32_Networking_WinSock", "Win32_Security_Authorization", "Win32_Storage_FileSystem", "Win32_System_Console", "Win32_System_IO", "Win32_System_Memory", "Win32_System_Pipes", "Win32_System_SystemServices", "Win32_System_Threading", "Win32_System_WindowsProgramming"] }
-windows-sys-c8eced492e86ede7 = { package = "windows-sys", version = "0.48", features = ["Win32_Foundation", "Win32_Globalization", "Win32_Networking_WinSock", "Win32_Security", "Win32_Storage_FileSystem", "Win32_System_Com", "Win32_System_Diagnostics_Debug", "Win32_System_IO", "Win32_System_Pipes", "Win32_System_Registry", "Win32_System_Threading", "Win32_System_Time", "Win32_UI_Shell"] }
+windows-sys-c8eced492e86ede7 = { package = "windows-sys", version = "0.48", features = ["Win32_Foundation", "Win32_Globalization", "Win32_Networking_WinSock", "Win32_Security", "Win32_Storage_FileSystem", "Win32_System_Com", "Win32_System_Diagnostics_Debug", "Win32_System_IO", "Win32_System_Pipes", "Win32_System_Registry", "Win32_System_Threading", "Win32_System_Time", "Win32_System_WindowsProgramming", "Win32_UI_Shell"] }
 
 [target.x86_64-pc-windows-msvc.build-dependencies]
 codespan-reporting = { version = "0.12" }
@@ -595,7 +595,7 @@ windows-core = { version = "0.61" }
 windows-numerics = { version = "0.2" }
 windows-sys-73dcd821b1037cfd = { package = "windows-sys", version = "0.59", features = ["Wdk_Foundation", "Wdk_Storage_FileSystem", "Win32_Globalization", "Win32_NetworkManagement_IpHelper", "Win32_Networking_WinSock", "Win32_Security_Authentication_Identity", "Win32_Security_Credentials", "Win32_Security_Cryptography", "Win32_Storage_FileSystem", "Win32_System_Com", "Win32_System_Console", "Win32_System_Diagnostics_Debug", "Win32_System_IO", "Win32_System_Ioctl", "Win32_System_Kernel", "Win32_System_LibraryLoader", "Win32_System_Memory", "Win32_System_Performance", "Win32_System_Pipes", "Win32_System_Registry", "Win32_System_SystemInformation", "Win32_System_SystemServices", "Win32_System_Threading", "Win32_System_Time", "Win32_System_WindowsProgramming", "Win32_UI_Input_KeyboardAndMouse", "Win32_UI_Shell", "Win32_UI_WindowsAndMessaging"] }
 windows-sys-b21d60becc0929df = { package = "windows-sys", version = "0.52", features = ["Wdk_Foundation", "Wdk_Storage_FileSystem", "Wdk_System_IO", "Win32_Foundation", "Win32_Networking_WinSock", "Win32_Security_Authorization", "Win32_Storage_FileSystem", "Win32_System_Console", "Win32_System_IO", "Win32_System_Memory", "Win32_System_Pipes", "Win32_System_SystemServices", "Win32_System_Threading", "Win32_System_WindowsProgramming"] }
-windows-sys-c8eced492e86ede7 = { package = "windows-sys", version = "0.48", features = ["Win32_Foundation", "Win32_Globalization", "Win32_Networking_WinSock", "Win32_Security", "Win32_Storage_FileSystem", "Win32_System_Com", "Win32_System_Diagnostics_Debug", "Win32_System_IO", "Win32_System_Pipes", "Win32_System_Registry", "Win32_System_Threading", "Win32_System_Time", "Win32_UI_Shell"] }
+windows-sys-c8eced492e86ede7 = { package = "windows-sys", version = "0.48", features = ["Win32_Foundation", "Win32_Globalization", "Win32_Networking_WinSock", "Win32_Security", "Win32_Storage_FileSystem", "Win32_System_Com", "Win32_System_Diagnostics_Debug", "Win32_System_IO", "Win32_System_Pipes", "Win32_System_Registry", "Win32_System_Threading", "Win32_System_Time", "Win32_System_WindowsProgramming", "Win32_UI_Shell"] }
 
 [target.x86_64-unknown-linux-musl.dependencies]
 aes = { version = "0.8", default-features = false, features = ["zeroize"] }