[INFO] fetching crate polkadot-mcp 0.1.0...
[INFO] checking polkadot-mcp-0.1.0 against master#2972b5e59f1c5529b6ba770437812fd83ab4ebd4 for pr-154781
[INFO] extracting crate polkadot-mcp 0.1.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate polkadot-mcp 0.1.0
[INFO] finished tweaking crates.io crate polkadot-mcp 0.1.0
[INFO] tweaked toml for crates.io crate polkadot-mcp 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate polkadot-mcp 0.1.0 on toolchain 2972b5e59f1c5529b6ba770437812fd83ab4ebd4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2972b5e59f1c5529b6ba770437812fd83ab4ebd4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate polkadot-mcp 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2972b5e59f1c5529b6ba770437812fd83ab4ebd4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded blake2b_simd v1.0.4
[INFO] [stderr]   Downloaded subxt-signer v0.42.1
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[INFO] [stderr]   Downloaded subxt-metadata v0.42.1
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[INFO] [stderr]   Downloaded secp256k1 v0.30.0
[INFO] [stderr]   Downloaded toml_parser v1.0.9+spec-1.1.0
[INFO] [stderr]   Downloaded subxt v0.42.1
[INFO] [stderr]   Downloaded smoldot-light v0.17.2
[INFO] [stderr]   Downloaded rmcp v0.16.0
[INFO] [stderr]   Downloaded frame-decode v0.8.3
[INFO] [stderr]   Downloaded smoldot v0.19.4
[INFO] [stderr]   Downloaded secp256k1-sys v0.10.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+2972b5e59f1c5529b6ba770437812fd83ab4ebd4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] addc19847805a4ac9a24b93df4762a0ae823c11f5e05e40a4ed4416cce4b243c
[INFO] running `Command { std: "docker" "start" "-a" "addc19847805a4ac9a24b93df4762a0ae823c11f5e05e40a4ed4416cce4b243c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "addc19847805a4ac9a24b93df4762a0ae823c11f5e05e40a4ed4416cce4b243c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "addc19847805a4ac9a24b93df4762a0ae823c11f5e05e40a4ed4416cce4b243c", kill_on_drop: false }`
[INFO] [stdout] addc19847805a4ac9a24b93df4762a0ae823c11f5e05e40a4ed4416cce4b243c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+2972b5e59f1c5529b6ba770437812fd83ab4ebd4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 70d1b7a364b604b9f52c6dc0f4d9e971f4d7b20dab9b298368d2311b1e678fea
[INFO] running `Command { std: "docker" "start" "-a" "70d1b7a364b604b9f52c6dc0f4d9e971f4d7b20dab9b298368d2311b1e678fea", kill_on_drop: false }`
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[INFO] [stdout] warning: struct `SubscanClient` is never constructed
[INFO] [stdout]   --> src/backends/subscan.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct SubscanClient {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `get_transfers`, and `get_reward_history` are never used
[INFO] [stdout]   --> src/backends/subscan.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | impl SubscanClient {
[INFO] [stdout]    | ------------------ associated items in this implementation
[INFO] [stdout] 23 |     pub fn new(chain_name: &str, api_key: Option<String>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub async fn get_transfers(
[INFO] [stdout]    |                  ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |     pub async fn get_reward_history(
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SubscanResponse` is never constructed
[INFO] [stdout]   --> src/backends/subscan.rs:90:8
[INFO] [stdout]    |
[INFO] [stdout] 90 | struct SubscanResponse<T> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TransfersData` is never constructed
[INFO] [stdout]   --> src/backends/subscan.rs:97:8
[INFO] [stdout]    |
[INFO] [stdout] 97 | struct TransfersData {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TransferRecord` is never constructed
[INFO] [stdout]    --> src/backends/subscan.rs:102:12
[INFO] [stdout]     |
[INFO] [stdout] 102 | pub struct TransferRecord {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RewardsData` is never constructed
[INFO] [stdout]    --> src/backends/subscan.rs:113:8
[INFO] [stdout]     |
[INFO] [stdout] 113 | struct RewardsData {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RewardRecord` is never constructed
[INFO] [stdout]    --> src/backends/subscan.rs:118:12
[INFO] [stdout]     |
[INFO] [stdout] 118 | pub struct RewardRecord {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fetch_storage_required` is never used
[INFO] [stdout]   --> src/backends/subxt_backend.rs:27:14
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub async fn fetch_storage_required(
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pallet_exists` is never used
[INFO] [stdout]   --> src/backends/subxt_backend.rs:50:14
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub async fn pallet_exists(api: &OnlineClient<PolkadotConfig>, pallet_name: &str) -> bool {
[INFO] [stdout]    |              ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `value_as_string` is never used
[INFO] [stdout]   --> src/decode.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn value_as_string(value: &DecodedValue) -> Option<String> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_variant` is never used
[INFO] [stdout]   --> src/decode.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn is_variant(value: &DecodedValue, variant_name: &str) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `as_variant` is never used
[INFO] [stdout]   --> src/decode.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn as_variant(value: &DecodedValue) -> Option<(&str, &Composite<u32>)> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `format_balance_field` is never used
[INFO] [stdout]   --> src/decode.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub fn format_balance_field(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decode_lock_id` is never used
[INFO] [stdout]   --> src/decode.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub fn decode_lock_id(id_value: &DecodedValue) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `lock_id_to_name` is never used
[INFO] [stdout]   --> src/decode.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub fn lock_id_to_name(raw: &str) -> &str {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `name`, `chain_names`, and `from_env` are never used
[INFO] [stdout]   --> src/network.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl Network {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 26 |     /// Get network name (relay chain name).
[INFO] [stdout] 27 |     pub fn name(&self) -> &str {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 84 |     pub fn chain_names(&self) -> Vec<&str> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 94 |     pub fn from_env() -> Result<Self> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `signer` is never read
[INFO] [stdout]   --> src/server.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct PolkadotMcp {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub signer: Option<Arc<subxt_signer::sr25519::Keypair>>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PolkadotMcp` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `format_chain_balance` is never used
[INFO] [stdout]   --> src/types.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn format_chain_balance(planck: u128, config: &ChainConfig) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `blocks_to_duration` is never used
[INFO] [stdout]   --> src/types.rs:91:8
[INFO] [stdout]    |
[INFO] [stdout] 91 | pub fn blocks_to_duration(blocks: u64) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SubscanClient` is never constructed
[INFO] [stdout]   --> src/backends/subscan.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct SubscanClient {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `get_transfers`, and `get_reward_history` are never used
[INFO] [stdout]   --> src/backends/subscan.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | impl SubscanClient {
[INFO] [stdout]    | ------------------ associated items in this implementation
[INFO] [stdout] 23 |     pub fn new(chain_name: &str, api_key: Option<String>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub async fn get_transfers(
[INFO] [stdout]    |                  ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |     pub async fn get_reward_history(
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SubscanResponse` is never constructed
[INFO] [stdout]   --> src/backends/subscan.rs:90:8
[INFO] [stdout]    |
[INFO] [stdout] 90 | struct SubscanResponse<T> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TransfersData` is never constructed
[INFO] [stdout]   --> src/backends/subscan.rs:97:8
[INFO] [stdout]    |
[INFO] [stdout] 97 | struct TransfersData {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TransferRecord` is never constructed
[INFO] [stdout]    --> src/backends/subscan.rs:102:12
[INFO] [stdout]     |
[INFO] [stdout] 102 | pub struct TransferRecord {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RewardsData` is never constructed
[INFO] [stdout]    --> src/backends/subscan.rs:113:8
[INFO] [stdout]     |
[INFO] [stdout] 113 | struct RewardsData {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RewardRecord` is never constructed
[INFO] [stdout]    --> src/backends/subscan.rs:118:12
[INFO] [stdout]     |
[INFO] [stdout] 118 | pub struct RewardRecord {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fetch_storage_required` is never used
[INFO] [stdout]   --> src/backends/subxt_backend.rs:27:14
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub async fn fetch_storage_required(
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pallet_exists` is never used
[INFO] [stdout]   --> src/backends/subxt_backend.rs:50:14
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub async fn pallet_exists(api: &OnlineClient<PolkadotConfig>, pallet_name: &str) -> bool {
[INFO] [stdout]    |              ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `value_as_string` is never used
[INFO] [stdout]   --> src/decode.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn value_as_string(value: &DecodedValue) -> Option<String> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_variant` is never used
[INFO] [stdout]   --> src/decode.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn is_variant(value: &DecodedValue, variant_name: &str) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `as_variant` is never used
[INFO] [stdout]   --> src/decode.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn as_variant(value: &DecodedValue) -> Option<(&str, &Composite<u32>)> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `format_balance_field` is never used
[INFO] [stdout]   --> src/decode.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub fn format_balance_field(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decode_lock_id` is never used
[INFO] [stdout]   --> src/decode.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub fn decode_lock_id(id_value: &DecodedValue) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `lock_id_to_name` is never used
[INFO] [stdout]   --> src/decode.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub fn lock_id_to_name(raw: &str) -> &str {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `name`, `chain_names`, and `from_env` are never used
[INFO] [stdout]   --> src/network.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl Network {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 26 |     /// Get network name (relay chain name).
[INFO] [stdout] 27 |     pub fn name(&self) -> &str {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 84 |     pub fn chain_names(&self) -> Vec<&str> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 94 |     pub fn from_env() -> Result<Self> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `signer` is never read
[INFO] [stdout]   --> src/server.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct PolkadotMcp {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub signer: Option<Arc<subxt_signer::sr25519::Keypair>>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PolkadotMcp` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `format_chain_balance` is never used
[INFO] [stdout]   --> src/types.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn format_chain_balance(planck: u128, config: &ChainConfig) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 31s
[INFO] running `Command { std: "docker" "inspect" "70d1b7a364b604b9f52c6dc0f4d9e971f4d7b20dab9b298368d2311b1e678fea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70d1b7a364b604b9f52c6dc0f4d9e971f4d7b20dab9b298368d2311b1e678fea", kill_on_drop: false }`
[INFO] [stdout] 70d1b7a364b604b9f52c6dc0f4d9e971f4d7b20dab9b298368d2311b1e678fea