anza-xyz · joncinque · Oct 1, 2025 · Sep 30, 2025 · Sep 30, 2025 · Sep 30, 2025
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
@@ -36,6 +36,9 @@ jobs:
       - name: Run ShellCheck
         run: ./scripts/check-shell.sh
 
+      - name: Check doc features
+        run: ./scripts/check-doc-features.sh
+
   check-crates:
     name: Check crate ownership
     runs-on: ubuntu-latest

diff --git a/Cargo.toml b/Cargo.toml
@@ -118,6 +118,11 @@ check-cfg = [
     'cfg(feature, values("frozen-abi", "no-entrypoint"))',
 ]
 
+[workspace.metadata.docs.rs]
+targets = ["x86_64-unknown-linux-gnu"]
+all-features = true
+rustdoc-args = ["--cfg=docsrs"]
+
 [workspace.metadata.release]
 pre-release-commit-message = "Publish {{crate_name}} v{{version}}"
 tag-message = "Publish {{crate_name}} v{{version}}"

diff --git a/address/Cargo.toml b/address/Cargo.toml
@@ -10,6 +10,11 @@ homepage = { workspace = true }
 license = { workspace = true }
 edition = { workspace = true }
 
+[package.metadata.docs.rs]
+targets = ["x86_64-unknown-linux-gnu"]
+all-features = true
+rustdoc-args = ["--cfg=docsrs"]
+
 [features]
 atomic = ["dep:solana-atomic-u64"]
 borsh = ["dep:borsh", "std"]

diff --git a/atomic-u64/src/lib.rs b/atomic-u64/src/lib.rs
@@ -1,3 +1,4 @@
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 pub use implementation::AtomicU64;
 
 #[cfg(target_pointer_width = "64")]

diff --git a/big-mod-exp/src/lib.rs b/big-mod-exp/src/lib.rs
@@ -1,3 +1,4 @@
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 #[repr(C)]
 pub struct BigModExpParams {
     pub base: *const u8,

diff --git a/bincode/src/lib.rs b/bincode/src/lib.rs
@@ -1,6 +1,7 @@
 //! Contains a single utility function for deserializing from [bincode].
 //!
 //! [bincode]: https://docs.rs/bincode
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 
 use {bincode::config::Options, solana_instruction_error::InstructionError};
 

diff --git a/bls-signatures/Cargo.toml b/bls-signatures/Cargo.toml
@@ -10,6 +10,11 @@ homepage = { workspace = true }
 license = { workspace = true }
 edition = { workspace = true }
 
+[package.metadata.docs.rs]
+targets = ["x86_64-unknown-linux-gnu"]
+all-features = true
+rustdoc-args = ["--cfg=docsrs"]
+
 [lib]
 crate-type = ["rlib"]
 

diff --git a/bls-signatures/src/lib.rs b/bls-signatures/src/lib.rs
@@ -1,4 +1,5 @@
 #![no_std]
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 #![cfg_attr(feature = "frozen-abi", feature(min_specialization))]
 
 extern crate alloc;

diff --git a/bn254/Cargo.toml b/bn254/Cargo.toml
@@ -10,6 +10,11 @@ license = { workspace = true }
 edition = { workspace = true }
 include = ["src/**/*"]
 
+[package.metadata.docs.rs]
+targets = ["x86_64-unknown-linux-gnu"]
+all-features = true
+rustdoc-args = ["--cfg=docsrs"]
+
 [dependencies]
 bytemuck = { workspace = true, features = ["derive"] }
 thiserror = { workspace = true }

diff --git a/bn254/src/lib.rs b/bn254/src/lib.rs
@@ -1,3 +1,4 @@
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 pub(crate) mod addition;
 pub mod compression;
 pub(crate) mod multiplication;

diff --git a/borsh/src/lib.rs b/borsh/src/lib.rs
@@ -1,2 +1,3 @@
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 pub mod macros;
 pub mod v1;
diff --git a/client-traits/src/lib.rs b/client-traits/src/lib.rs
@@ -6,6 +6,7 @@
 //!
 //! Asynchronous implementations are expected to create transactions, sign them, and send
 //! them but without waiting to see if the server accepted it.
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 
 use {
     solana_account::Account,

diff --git a/commitment-config/src/lib.rs b/commitment-config/src/lib.rs
@@ -1,5 +1,6 @@
 //! Definitions of commitment levels.
 #![no_std]
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 use core::{fmt, str::FromStr};
 
 #[cfg_attr(

diff --git a/cpi/src/lib.rs b/cpi/src/lib.rs
@@ -12,6 +12,7 @@
 //! [`invoke_signed`]: invoke_signed
 //! [cpi]: https://solana.com/docs/core/cpi
 //! [`solana_program::program`]: https://docs.rs/solana-program/latest/solana_program/program/
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 
 use {
     solana_account_info::AccountInfo, solana_instruction::Instruction,

diff --git a/define-syscall/src/lib.rs b/define-syscall/src/lib.rs
@@ -1,4 +1,5 @@
 #![no_std]
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 
 pub mod definitions;
 

diff --git a/derivation-path/src/lib.rs b/derivation-path/src/lib.rs
@@ -8,6 +8,7 @@
 //! > `m/44'/501'`
 //!
 //! with 501 being the Solana coin type.
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 
 use {
     core::{iter::IntoIterator, slice::Iter},

diff --git a/ed25519-program/src/lib.rs b/ed25519-program/src/lib.rs
@@ -1,6 +1,7 @@
 //! Instructions for the [ed25519 native program][np].
 //!
 //! [np]: https://docs.solanalabs.com/runtime/programs#ed25519-program
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 
 use {
     bytemuck::bytes_of,

diff --git a/epoch-info/src/lib.rs b/epoch-info/src/lib.rs
@@ -3,6 +3,7 @@
 //! As returned by the [`getEpochInfo`] RPC method.
 //!
 //! [`getEpochInfo`]: https://solana.com/docs/rpc/http/getepochinfo
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 
 #[cfg_attr(
     feature = "serde",

diff --git a/epoch-rewards-hasher/src/lib.rs b/epoch-rewards-hasher/src/lib.rs
@@ -1,3 +1,4 @@
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 use {siphasher::sip::SipHasher13, solana_hash::Hash, solana_pubkey::Pubkey, std::hash::Hasher};
 
 #[derive(Debug, Clone)]

diff --git a/epoch-schedule/src/lib.rs b/epoch-schedule/src/lib.rs
@@ -13,6 +13,7 @@
 //!
 //! [`DEFAULT_SLOTS_PER_EPOCH`]: https://docs.rs/solana-clock/latest/solana_clock/constant.DEFAULT_SLOTS_PER_EPOCH.html
 #![cfg_attr(feature = "frozen-abi", feature(min_specialization))]
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 #![no_std]
 #[cfg(feature = "frozen-abi")]
 extern crate std;

diff --git a/epoch-stake/src/lib.rs b/epoch-stake/src/lib.rs
@@ -3,6 +3,7 @@
 //! On-chain programs can use this API to retrieve the total stake for the
 //! current epoch or the stake for a specific vote account using the
 //! `sol_get_epoch_stake` syscall.
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 
 use solana_pubkey::Pubkey;
 

diff --git a/feature-gate-interface/src/lib.rs b/feature-gate-interface/src/lib.rs
@@ -10,6 +10,7 @@
 //!    `Feature::default()`
 //! 2. When the next epoch is entered the runtime will check for new activation requests and
 //!    active them.  When this occurs, the activation slot is recorded in the feature account
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 
 pub mod error;
 pub mod instruction;

diff --git a/file-download/src/lib.rs b/file-download/src/lib.rs
@@ -1,4 +1,5 @@
 #![allow(clippy::arithmetic_side_effects)]
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 use {
     console::Emoji,
     indicatif::{ProgressBar, ProgressStyle},

diff --git a/frozen-abi-macro/Cargo.toml b/frozen-abi-macro/Cargo.toml
@@ -9,6 +9,11 @@ homepage = { workspace = true }
 license = { workspace = true }
 edition = { workspace = true }
 
+[package.metadata.docs.rs]
+targets = ["x86_64-unknown-linux-gnu"]
+all-features = true
+rustdoc-args = ["--cfg=docsrs"]
+
 [lib]
 proc-macro = true
 

diff --git a/frozen-abi-macro/src/lib.rs b/frozen-abi-macro/src/lib.rs
@@ -1,3 +1,4 @@
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 extern crate proc_macro;
 
 use proc_macro::TokenStream;

diff --git a/frozen-abi/Cargo.toml b/frozen-abi/Cargo.toml
@@ -9,6 +9,11 @@ homepage = { workspace = true }
 license = { workspace = true }
 edition = { workspace = true }
 
+[package.metadata.docs.rs]
+targets = ["x86_64-unknown-linux-gnu"]
+all-features = true
+rustdoc-args = ["--cfg=docsrs"]
+
 [features]
 default = []
 # activate the frozen-abi feature when we actually want to do frozen-abi testing,

diff --git a/frozen-abi/src/lib.rs b/frozen-abi/src/lib.rs
@@ -1,4 +1,5 @@
 #![allow(incomplete_features)]
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 #![cfg_attr(feature = "frozen-abi", feature(specialization))]
 
 // Allows macro expansion of `use ::solana_frozen_abi::*` to work within this crate

diff --git a/hard-forks/src/lib.rs b/hard-forks/src/lib.rs
@@ -1,6 +1,7 @@
 //! The list of slot boundaries at which a hard fork should
 //! occur.
 
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 #![cfg_attr(feature = "frozen-abi", feature(min_specialization))]
 
 #[cfg_attr(feature = "frozen-abi", derive(solana_frozen_abi_macro::AbiExample))]

diff --git a/inflation/src/lib.rs b/inflation/src/lib.rs
@@ -1,4 +1,5 @@
 //! configuration for network inflation
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 #![cfg_attr(feature = "frozen-abi", feature(min_specialization))]
 #[cfg(feature = "serde")]
 use serde_derive::{Deserialize, Serialize};

diff --git a/instruction-error/src/lib.rs b/instruction-error/src/lib.rs
@@ -1,4 +1,5 @@
 #![no_std]
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 #![cfg_attr(feature = "frozen-abi", feature(min_specialization))]
 #[cfg(feature = "num-traits")]
 use num_traits::ToPrimitive;

diff --git a/logger/src/lib.rs b/logger/src/lib.rs
@@ -1,4 +1,5 @@
 //! The `logger` module configures `env_logger`
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 
 use {
     lazy_static::lazy_static,

diff --git a/msg/src/lib.rs b/msg/src/lib.rs
@@ -1,4 +1,5 @@
 #![no_std]
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 #[cfg(feature = "std")]
 extern crate std;
 /// Print a message to the log.

diff --git a/native-token/src/lib.rs b/native-token/src/lib.rs
@@ -1,5 +1,6 @@
 //! Definitions for the native SOL token and its fractional lamports.
 
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 #![allow(clippy::arithmetic_side_effects)]
 
 /// There are 10^9 lamports in one SOL

diff --git a/nonce-account/src/lib.rs b/nonce-account/src/lib.rs
@@ -1,4 +1,5 @@
 //! Functions related to nonce accounts.
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 
 use {
     solana_account::{state_traits::StateMut, AccountSharedData, ReadableAccount},

diff --git a/package-metadata-macro/src/lib.rs b/package-metadata-macro/src/lib.rs
@@ -1,4 +1,5 @@
 //! Macro to access data from the `package.metadata` section of Cargo.toml
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 
 extern crate proc_macro;
 

diff --git a/package-metadata/src/lib.rs b/package-metadata/src/lib.rs
@@ -1,3 +1,4 @@
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 /// Macro for accessing data from the `package.metadata` section of the Cargo manifest
 ///
 /// # Arguments

diff --git a/precompile-error/src/lib.rs b/precompile-error/src/lib.rs
@@ -1,3 +1,4 @@
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 /// Precompile errors
 use core::fmt;
 

diff --git a/presigner/src/lib.rs b/presigner/src/lib.rs
@@ -1,3 +1,4 @@
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 pub use solana_signer::PresignerError;
 use {
     solana_pubkey::Pubkey,

diff --git a/program-entrypoint/src/lib.rs b/program-entrypoint/src/lib.rs
@@ -1,4 +1,5 @@
 //! The Rust-based BPF program entrypoint supported by the latest BPF loader.
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 
 extern crate alloc;
 use {

diff --git a/program-memory/src/lib.rs b/program-memory/src/lib.rs
@@ -1,4 +1,5 @@
 #![no_std]
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 
 //! Basic low-level memory operations.
 //!

diff --git a/program-option/src/lib.rs b/program-option/src/lib.rs
@@ -3,6 +3,7 @@
 //!
 //! This implementation mostly matches `std::option` except iterators since the iteration
 //! trait requires returning `std::option::Option`
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 
 use std::{
     convert, mem,

diff --git a/program-pack/src/lib.rs b/program-pack/src/lib.rs
@@ -5,6 +5,7 @@
 //! serialization format.
 //!
 //! [spl]: https://github.com/solana-labs/solana-program-library
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 
 use solana_program_error::ProgramError;
 

diff --git a/quic-definitions/src/lib.rs b/quic-definitions/src/lib.rs
@@ -1,4 +1,5 @@
 //! Definitions related to Solana over QUIC.
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 use {solana_keypair::Keypair, std::time::Duration};
 
 pub const QUIC_PORT_OFFSET: u16 = 6;

diff --git a/rent/src/lib.rs b/rent/src/lib.rs
@@ -4,6 +4,7 @@
 
 #![allow(clippy::arithmetic_side_effects)]
 #![no_std]
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 #![cfg_attr(feature = "frozen-abi", feature(min_specialization))]
 #[cfg(feature = "frozen-abi")]
 extern crate std;

diff --git a/reward-info/src/lib.rs b/reward-info/src/lib.rs
@@ -1,4 +1,5 @@
 #![cfg_attr(feature = "frozen-abi", feature(min_specialization))]
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 #[cfg(feature = "serde")]
 use serde_derive::{Deserialize, Serialize};
 #[cfg(feature = "frozen-abi")]

diff --git a/sanitize/src/lib.rs b/sanitize/src/lib.rs
@@ -1,6 +1,7 @@
 //! A trait for sanitizing values and members of over the wire messages.
 
 #![no_std]
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 
 use core::{error::Error, fmt};
 

diff --git a/scripts/check-doc-features.sh b/scripts/check-doc-features.sh
@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+
+set -eo pipefail
+here="$(dirname "$0")"
+src_root="$(readlink -f "${here}/..")"
+cd "${src_root}"
+
+err=0
+# Get all Cargo.toml files that don't have [package.metadata.docs.rs] specified
+files=$(comm -23 <(git ls-files -- '**/Cargo.toml' | sort) <(git grep -l "^\[package.metadata.docs.rs\]" | sort))
+if [[ -n $files ]]; then
+  echo "Files found without [package.metadata.docs.rs]:"
+  echo "$files"
+  err=1
+fi
+
+# Get all lib.rs files that don't have #![cfg_attr(docsrs, feature(doc_auto_cfg))]
+files=$(comm -23 <(git ls-files -- '**/lib.rs' | sort) <(git grep -lE '^#!\[cfg_attr\(docsrs, feature\(doc_auto_cfg\)\)\]' | sort))
+if [[ -n $files ]]; then
+  echo "Files found without #![cfg_attr(docsrs, feature(doc_auto_cfg))]"
+  echo "$files"
+  err=1
+fi
+exit $err
diff --git a/sdk-ids/src/lib.rs b/sdk-ids/src/lib.rs
@@ -1,4 +1,5 @@
 #![no_std]
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 
 pub mod address_lookup_table {
     solana_pubkey::declare_id!("AddressLookupTab1e1111111111111111111111111");

diff --git a/sdk-macro/src/lib.rs b/sdk-macro/src/lib.rs
@@ -1,6 +1,7 @@
 //! Convenience macro to declare a static public key and functions to interact with it
 //!
 //! Input: a single literal base58 string representation of a program's id
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 
 extern crate proc_macro;
 

diff --git a/sdk-wasm-js-tests/Cargo.toml b/sdk-wasm-js-tests/Cargo.toml
@@ -10,6 +10,11 @@ homepage = { workspace = true }
 license = { workspace = true }
 edition = { workspace = true }
 
+[package.metadata.docs.rs]
+targets = ["x86_64-unknown-linux-gnu"]
+all-features = true
+rustdoc-args = ["--cfg=docsrs"]
+
 [lib]
 crate-type = ["cdylib", "rlib"]
 

diff --git a/sdk-wasm-js-tests/src/lib.rs b/sdk-wasm-js-tests/src/lib.rs
@@ -1,4 +1,5 @@
 //! `SystemInstruction` Javascript interface
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 #![cfg(target_arch = "wasm32")]
 #![allow(non_snake_case)]
 pub use solana_sdk_wasm_js::{

diff --git a/sdk-wasm-js/src/lib.rs b/sdk-wasm-js/src/lib.rs
@@ -1,4 +1,5 @@
 //! solana-program Javascript interface
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 #![cfg(target_arch = "wasm32")]
 
 use {