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[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
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[INFO] checking paritytech/substrate-bridge-relay against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparitytech%2Fsubstrate-bridge-relay" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/paritytech/substrate-bridge-relay on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/paritytech/substrate-bridge-relay
[INFO] finished tweaking git repo https://github.com/paritytech/substrate-bridge-relay
[INFO] tweaked toml for git repo https://github.com/paritytech/substrate-bridge-relay written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/paritytech/substrate-bridge-relay already has a lockfile, it will not be regenerated
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[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] dd6f6eeb31140d309dd96e5d1772c19d256106f67347cac24b0301bd22ced1fb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "dd6f6eeb31140d309dd96e5d1772c19d256106f67347cac24b0301bd22ced1fb"`
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[INFO] [stderr] warning: unused variable: `bridged_chain`
[INFO] [stderr]    --> src/bridge.rs:206:9
[INFO] [stderr]     |
[INFO] [stderr] 206 |                 let bridged_chain = bridged_chain_cell.borrow_mut();
[INFO] [stderr]     |                     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bridged_chain`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `new_heads_subscription`
[INFO] [stderr]    --> src/bridge.rs:255:6
[INFO] [stderr]     |
[INFO] [stderr] 255 |     let new_heads_subscription = match new_heads_subscription {
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_heads_subscription`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `finalized_heads_subscription`
[INFO] [stderr]    --> src/bridge.rs:265:6
[INFO] [stderr]     |
[INFO] [stderr] 265 |     let finalized_heads_subscription = match finalized_heads_subscription {
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_finalized_heads_subscription`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `subscription`
[INFO] [stderr]    --> src/bridge.rs:266:30
[INFO] [stderr]     |
[INFO] [stderr] 266 |         ClientSubscription::Active(subscription) => {}
[INFO] [stderr]     |                                    ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_subscription`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bridged_chain_id`
[INFO] [stderr]    --> src/bridge.rs:296:10
[INFO] [stderr]     |
[INFO] [stderr] 296 |                 for (bridged_chain_id, bridged_chain) in chain.state.bridges.iter_mut() {
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bridged_chain_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `method`
[INFO] [stderr]  --> src/rpc.rs:7:6
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub SubstrateRPC {
[INFO] [stderr]   |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_method`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `request`
[INFO] [stderr]   --> src/rpc.rs:12:3
[INFO] [stderr]    |
[INFO] [stderr] 12 |         fn chain_finalized_head() -> Hash;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_request`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `url`
[INFO] [stderr]   --> src/bridge.rs:33:2
[INFO] [stderr]    |
[INFO] [stderr] 33 |     url: String,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `initial_next_events`
[INFO] [stderr]    --> src/bridge.rs:139:4
[INFO] [stderr]     |
[INFO] [stderr] 139 | fn initial_next_events<'a>(chains: &'a HashMap<ChainId, RefCell<Chain>>)
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `next_event`
[INFO] [stderr]    --> src/bridge.rs:154:10
[INFO] [stderr]     |
[INFO] [stderr] 154 | async fn next_event<'a>(
[INFO] [stderr]     |          ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `UnexpectedClientEvent`
[INFO] [stderr]   --> src/error.rs:14:2
[INFO] [stderr]    |
[INFO] [stderr] 14 |     UnexpectedClientEvent(String, String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `InvalidBridgeEvent`
[INFO] [stderr]   --> src/error.rs:18:2
[INFO] [stderr]    |
[INFO] [stderr] 18 |     InvalidBridgeEvent(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AuthorSubmitExtrinsic`
[INFO] [stderr]  --> src/rpc.rs:9:6
[INFO] [stderr]   |
[INFO] [stderr] 9 |         fn author_submit_extrinsic(extrinsic: Bytes) -> Hash;
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ChainFinalizedHead`
[INFO] [stderr]   --> src/rpc.rs:12:6
[INFO] [stderr]    |
[INFO] [stderr] 12 |         fn chain_finalized_head() -> Hash;
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ChainBlockHash`
[INFO] [stderr]   --> src/rpc.rs:15:6
[INFO] [stderr]    |
[INFO] [stderr] 15 |         fn chain_block_hash(id: Option<NumberOrHex<BlockNumber>>) -> Option<Hash>;
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ChainHeader`
[INFO] [stderr]   --> src/rpc.rs:18:6
[INFO] [stderr]    |
[INFO] [stderr] 18 |         fn chain_header(hash: Option<Hash>) -> Option<Header>;
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `StateCall`
[INFO] [stderr]   --> src/rpc.rs:21:6
[INFO] [stderr]    |
[INFO] [stderr] 21 |         fn state_call(name: String, bytes: Bytes, hash: Option<Hash>) -> Bytes;
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `next_request`
[INFO] [stderr]  --> src/rpc.rs:7:2
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub SubstrateRPC {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `state_call`
[INFO] [stderr]  --> src/rpc.rs:7:2
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub SubstrateRPC {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 19 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bridged_chain`
[INFO] [stderr]    --> src/bridge.rs:206:9
[INFO] [stderr]     |
[INFO] [stderr] 206 |                 let bridged_chain = bridged_chain_cell.borrow_mut();
[INFO] [stderr]     |                     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bridged_chain`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `new_heads_subscription`
[INFO] [stderr]    --> src/bridge.rs:255:6
[INFO] [stderr]     |
[INFO] [stderr] 255 |     let new_heads_subscription = match new_heads_subscription {
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_heads_subscription`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `finalized_heads_subscription`
[INFO] [stderr]    --> src/bridge.rs:265:6
[INFO] [stderr]     |
[INFO] [stderr] 265 |     let finalized_heads_subscription = match finalized_heads_subscription {
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_finalized_heads_subscription`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `subscription`
[INFO] [stderr]    --> src/bridge.rs:266:30
[INFO] [stderr]     |
[INFO] [stderr] 266 |         ClientSubscription::Active(subscription) => {}
[INFO] [stderr]     |                                    ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_subscription`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bridged_chain_id`
[INFO] [stderr]    --> src/bridge.rs:296:10
[INFO] [stderr]     |
[INFO] [stderr] 296 |                 for (bridged_chain_id, bridged_chain) in chain.state.bridges.iter_mut() {
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bridged_chain_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `method`
[INFO] [stderr]  --> src/rpc.rs:7:6
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub SubstrateRPC {
[INFO] [stderr]   |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_method`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `request`
[INFO] [stderr]   --> src/rpc.rs:12:3
[INFO] [stderr]    |
[INFO] [stderr] 12 |         fn chain_finalized_head() -> Hash;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_request`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `url`
[INFO] [stderr]   --> src/bridge.rs:33:2
[INFO] [stderr]    |
[INFO] [stderr] 33 |     url: String,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `initial_next_events`
[INFO] [stderr]    --> src/bridge.rs:139:4
[INFO] [stderr]     |
[INFO] [stderr] 139 | fn initial_next_events<'a>(chains: &'a HashMap<ChainId, RefCell<Chain>>)
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `next_event`
[INFO] [stderr]    --> src/bridge.rs:154:10
[INFO] [stderr]     |
[INFO] [stderr] 154 | async fn next_event<'a>(
[INFO] [stderr]     |          ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `UnexpectedClientEvent`
[INFO] [stderr]   --> src/error.rs:14:2
[INFO] [stderr]    |
[INFO] [stderr] 14 |     UnexpectedClientEvent(String, String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `InvalidBridgeEvent`
[INFO] [stderr]   --> src/error.rs:18:2
[INFO] [stderr]    |
[INFO] [stderr] 18 |     InvalidBridgeEvent(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AuthorSubmitExtrinsic`
[INFO] [stderr]  --> src/rpc.rs:9:6
[INFO] [stderr]   |
[INFO] [stderr] 9 |         fn author_submit_extrinsic(extrinsic: Bytes) -> Hash;
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ChainFinalizedHead`
[INFO] [stderr]   --> src/rpc.rs:12:6
[INFO] [stderr]    |
[INFO] [stderr] 12 |         fn chain_finalized_head() -> Hash;
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ChainBlockHash`
[INFO] [stderr]   --> src/rpc.rs:15:6
[INFO] [stderr]    |
[INFO] [stderr] 15 |         fn chain_block_hash(id: Option<NumberOrHex<BlockNumber>>) -> Option<Hash>;
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ChainHeader`
[INFO] [stderr]   --> src/rpc.rs:18:6
[INFO] [stderr]    |
[INFO] [stderr] 18 |         fn chain_header(hash: Option<Hash>) -> Option<Header>;
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `StateCall`
[INFO] [stderr]   --> src/rpc.rs:21:6
[INFO] [stderr]    |
[INFO] [stderr] 21 |         fn state_call(name: String, bytes: Bytes, hash: Option<Hash>) -> Bytes;
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `next_request`
[INFO] [stderr]  --> src/rpc.rs:7:2
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub SubstrateRPC {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `state_call`
[INFO] [stderr]  --> src/rpc.rs:7:2
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub SubstrateRPC {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 19 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6m 12s
[INFO] running `"docker" "inspect" "dd6f6eeb31140d309dd96e5d1772c19d256106f67347cac24b0301bd22ced1fb"`
[INFO] running `"docker" "rm" "-f" "dd6f6eeb31140d309dd96e5d1772c19d256106f67347cac24b0301bd22ced1fb"`
[INFO] [stdout] dd6f6eeb31140d309dd96e5d1772c19d256106f67347cac24b0301bd22ced1fb