[INFO] fetching crate translator_sv2 0.1.1...
[INFO] checking translator_sv2-0.1.1 against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] extracting crate translator_sv2 0.1.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate translator_sv2 0.1.1
[INFO] finished tweaking crates.io crate translator_sv2 0.1.1
[INFO] tweaked toml for crates.io crate translator_sv2 0.1.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate translator_sv2 0.1.1 on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate translator_sv2 0.1.1 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1bb824c94180afaed369f5f61a984ddec9902fa139a8936f791596d60dd5a09f
[INFO] running `Command { std: "docker" "start" "-a" "1bb824c94180afaed369f5f61a984ddec9902fa139a8936f791596d60dd5a09f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1bb824c94180afaed369f5f61a984ddec9902fa139a8936f791596d60dd5a09f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bb824c94180afaed369f5f61a984ddec9902fa139a8936f791596d60dd5a09f", kill_on_drop: false }`
[INFO] [stdout] 1bb824c94180afaed369f5f61a984ddec9902fa139a8936f791596d60dd5a09f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 695e153290481289eb2c33182dde5144f6d66b30446f4e033fd4270d52b27a19
[INFO] running `Command { std: "docker" "start" "-a" "695e153290481289eb2c33182dde5144f6d66b30446f4e033fd4270d52b27a19", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.154
[INFO] [stderr]    Compiling proc-macro2 v1.0.82
[INFO] [stderr]    Compiling cc v1.0.97
[INFO] [stderr]     Checking zeroize v1.7.0
[INFO] [stderr]    Compiling bitcoin-internals v0.2.0
[INFO] [stderr]     Checking parking v2.2.0
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking hex-conservative v0.1.1
[INFO] [stderr]    Compiling binary_codec_sv2 v1.0.0
[INFO] [stderr]     Checking value-bag v1.9.0
[INFO] [stderr]    Compiling rustix v0.38.34
[INFO] [stderr]     Checking concurrent-queue v2.5.0
[INFO] [stderr]    Compiling serde v1.0.200
[INFO] [stderr]     Checking inout v0.1.3
[INFO] [stderr]     Checking linux-raw-sys v0.4.13
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling polling v2.8.0
[INFO] [stderr]    Compiling rustix v0.37.27
[INFO] [stderr]     Checking futures-lite v2.3.0
[INFO] [stderr]     Checking piper v0.2.1
[INFO] [stderr]     Checking event-listener v4.0.3
[INFO] [stderr]     Checking event-listener v5.3.0
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]    Compiling async-io v1.13.0
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]     Checking bitcoin_hashes v0.13.0
[INFO] [stderr]     Checking bitcoin_hashes v0.11.0
[INFO] [stderr]     Checking event-listener-strategy v0.4.0
[INFO] [stderr]     Checking linux-raw-sys v0.3.8
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking waker-fn v1.1.1
[INFO] [stderr]     Checking async-lock v2.8.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking futures-lite v1.13.0
[INFO] [stderr]     Checking async-lock v3.3.0
[INFO] [stderr]    Compiling derive_codec_sv2 v1.0.0
[INFO] [stderr]     Checking event-listener-strategy v0.5.2
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking async-channel v2.2.1
[INFO] [stderr]     Checking async-executor v1.11.0
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling serde_json v1.0.116
[INFO] [stderr]     Checking bech32 v0.9.1
[INFO] [stderr]    Compiling syn v2.0.61
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]     Checking async-channel v1.9.0
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking socket2 v0.4.10
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking socket2 v0.5.7
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking parking_lot v0.12.2
[INFO] [stderr]     Checking bitcoin_hashes v0.3.2
[INFO] [stderr]     Checking bs58 v0.4.0
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking blocking v1.6.0
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking siphasher v1.0.1
[INFO] [stderr]     Checking error_handling v1.0.0
[INFO] [stderr]     Checking universal-hash v0.5.1
[INFO] [stderr]     Checking cipher v0.4.4
[INFO] [stderr]     Checking aead v0.5.2
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]    Compiling secp256k1-sys v0.9.2
[INFO] [stderr]    Compiling secp256k1-sys v0.6.1
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking polyval v0.6.2
[INFO] [stderr]     Checking poly1305 v0.8.0
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking ctr v0.9.2
[INFO] [stderr]     Checking aes v0.8.4
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking chacha20 v0.9.1
[INFO] [stderr]     Checking ghash v0.5.1
[INFO] [stderr]     Checking aes-gcm v0.10.3
[INFO] [stderr]     Checking chacha20poly1305 v0.10.1
[INFO] [stderr]     Checking buffer_sv2 v1.0.0
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling async-recursion v0.3.2
[INFO] [stderr]     Checking secp256k1 v0.28.2
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling serde_derive v1.0.200
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking const_sv2 v1.0.0
[INFO] [stderr]     Checking const_sv2 v0.1.3
[INFO] [stderr]     Checking secp256k1 v0.24.3
[INFO] [stderr]     Checking noise_sv2 v1.1.0
[INFO] [stderr]     Checking bitcoin v0.29.2
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking binary_sv2 v1.0.0
[INFO] [stderr]     Checking polling v3.7.0
[INFO] [stderr]     Checking framing_sv2 v1.0.0
[INFO] [stderr]     Checking mining_sv2 v1.0.0
[INFO] [stderr]     Checking template_distribution_sv2 v1.0.0
[INFO] [stderr]     Checking job_declaration_sv2 v1.0.0
[INFO] [stderr]     Checking common_messages_sv2 v1.0.0
[INFO] [stderr]     Checking codec_sv2 v1.0.1
[INFO] [stderr]     Checking async-io v2.3.2
[INFO] [stderr]     Checking async-global-executor v2.4.1
[INFO] [stderr]     Checking async-std v1.12.0
[INFO] [stderr]     Checking stratum-common v1.0.0
[INFO] [stderr]     Checking roles_logic_sv2 v1.0.0
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking network_helpers_sv2 v2.0.0
[INFO] [stderr]     Checking async-compat v0.2.3
[INFO] [stderr]     Checking tokio-util v0.7.11
[INFO] [stderr]     Checking key-utils v1.0.0
[INFO] [stderr]     Checking toml v0.5.11
[INFO] [stderr]     Checking sv1_api v1.0.0
[INFO] [stderr]     Checking translator_sv2 v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]    --> src/lib/upstream_sv2/upstream.rs:115:16
[INFO] [stdout]     |
[INFO] [stdout] 115 |     #[cfg_attr(feature = "cargo-clippy", allow(clippy::too_many_arguments))]
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `with_serde`
[INFO] [stdout]     = help: consider adding `cargo-clippy` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]    --> src/lib/upstream_sv2/upstream.rs:115:16
[INFO] [stdout]     |
[INFO] [stdout] 115 |     #[cfg_attr(feature = "cargo-clippy", allow(clippy::too_many_arguments))]
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `with_serde`
[INFO] [stdout]     = help: consider adding `cargo-clippy` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `tx_sv1_submit`, `rx_sv2_submit_shares_ext`, `tx_sv2_set_new_prev_hash`, `tx_sv2_new_ext_mining_job`, and `rx_sv1_notify` are never read
[INFO] [stdout]    --> src/lib/proxy/bridge.rs:518:17
[INFO] [stdout]     |
[INFO] [stdout] 517 |         pub struct BridgeInterface {
[INFO] [stdout]     |                    --------------- fields in this struct
[INFO] [stdout] 518 |             pub tx_sv1_submit: Sender<DownstreamMessages>,
[INFO] [stdout]     |                 ^^^^^^^^^^^^^
[INFO] [stdout] 519 |             pub rx_sv2_submit_shares_ext: Receiver<SubmitSharesExtended<'static>>,
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 520 |             pub tx_sv2_set_new_prev_hash: Sender<SetNewPrevHash<'static>>,
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 521 |             pub tx_sv2_new_ext_mining_job: Sender<NewExtendedMiningJob<'static>>,
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 522 |             pub rx_sv1_notify: broadcast::Receiver<server_to_client::Notify<'static>>,
[INFO] [stdout]     |                 ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib/downstream_sv1/downstream.rs:567:15
[INFO] [stdout]     |
[INFO] [stdout] 567 |     fn notify(&mut self) -> Result<json_rpc::Message, v1::error::Error> {
[INFO] [stdout]     |               ^^^^^^^^^ the lifetime is elided here   ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 567 |     fn notify(&mut self) -> Result<json_rpc::Message, v1::error::Error<'_>> {
[INFO] [stdout]     |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib/downstream_sv1/downstream.rs:567:15
[INFO] [stdout]     |
[INFO] [stdout] 567 |     fn notify(&mut self) -> Result<json_rpc::Message, v1::error::Error> {
[INFO] [stdout]     |               ^^^^^^^^^ the lifetime is elided here   ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 567 |     fn notify(&mut self) -> Result<json_rpc::Message, v1::error::Error<'_>> {
[INFO] [stdout]     |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]    --> src/lib/upstream_sv2/upstream.rs:115:16
[INFO] [stdout]     |
[INFO] [stdout] 115 |     #[cfg_attr(feature = "cargo-clippy", allow(clippy::too_many_arguments))]
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `with_serde`
[INFO] [stdout]     = help: consider adding `cargo-clippy` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]    --> src/lib/upstream_sv2/upstream.rs:115:16
[INFO] [stdout]     |
[INFO] [stdout] 115 |     #[cfg_attr(feature = "cargo-clippy", allow(clippy::too_many_arguments))]
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `with_serde`
[INFO] [stdout]     = help: consider adding `cargo-clippy` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `extranonce` and `extranonce2_len` are never read
[INFO] [stdout]   --> src/lib/downstream_sv1/mod.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct SubmitShareWithChannelId {
[INFO] [stdout]    |            ------------------------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub extranonce: Vec<u8>,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 28 |     pub extranonce2_len: usize,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SubmitShareWithChannelId` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/lib/error.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     SubmitSharesExtended(
[INFO] [stdout]    |     -------------------- field in this variant
[INFO] [stdout] 15 |         async_channel::SendError<roles_logic_sv2::mining_sv2::SubmitSharesExtended<'a>>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ChannelSendError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 15 -         async_channel::SendError<roles_logic_sv2::mining_sv2::SubmitSharesExtended<'a>>,
[INFO] [stdout] 15 +         (),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/lib/error.rs:17:20
[INFO] [stdout]    |
[INFO] [stdout] 17 |     SetNewPrevHash(async_channel::SendError<roles_logic_sv2::mining_sv2::SetNewPrevHash<'a>>),
[INFO] [stdout]    |     -------------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ChannelSendError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 17 -     SetNewPrevHash(async_channel::SendError<roles_logic_sv2::mining_sv2::SetNewPrevHash<'a>>),
[INFO] [stdout] 17 +     SetNewPrevHash(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/lib/error.rs:18:26
[INFO] [stdout]    |
[INFO] [stdout] 18 |     NewExtendedMiningJob(async_channel::SendError<NewExtendedMiningJob<'a>>),
[INFO] [stdout]    |     -------------------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ChannelSendError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 18 -     NewExtendedMiningJob(async_channel::SendError<NewExtendedMiningJob<'a>>),
[INFO] [stdout] 18 +     NewExtendedMiningJob(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/lib/error.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Notify(tokio::sync::broadcast::error::SendError<Notify<'a>>),
[INFO] [stdout]    |     ------ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ChannelSendError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 19 -     Notify(tokio::sync::broadcast::error::SendError<Notify<'a>>),
[INFO] [stdout] 19 +     Notify(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/lib/error.rs:20:15
[INFO] [stdout]    |
[INFO] [stdout] 20 |     V1Message(async_channel::SendError<v1::Message>),
[INFO] [stdout]    |     --------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ChannelSendError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 20 -     V1Message(async_channel::SendError<v1::Message>),
[INFO] [stdout] 20 +     V1Message(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/lib/error.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |     General(String),
[INFO] [stdout]    |     ------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ChannelSendError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 21 -     General(String),
[INFO] [stdout] 21 +     General(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/lib/error.rs:22:16
[INFO] [stdout]    |
[INFO] [stdout] 22 |     Extranonce(async_channel::SendError<(ExtendedExtranonce, u32)>),
[INFO] [stdout]    |     ---------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ChannelSendError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 22 -     Extranonce(async_channel::SendError<(ExtendedExtranonce, u32)>),
[INFO] [stdout] 22 +     Extranonce(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/lib/error.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     SetCustomMiningJob(
[INFO] [stdout]    |     ------------------ field in this variant
[INFO] [stdout] 24 |         async_channel::SendError<roles_logic_sv2::mining_sv2::SetCustomMiningJob<'a>>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ChannelSendError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 24 -         async_channel::SendError<roles_logic_sv2::mining_sv2::SetCustomMiningJob<'a>>,
[INFO] [stdout] 24 +         (),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/lib/error.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |       NewTemplate(
[INFO] [stdout]    |       ----------- field in this variant
[INFO] [stdout] 27 | /         async_channel::SendError<(
[INFO] [stdout] 28 | |             roles_logic_sv2::template_distribution_sv2::SetNewPrevHash<'a>,
[INFO] [stdout] 29 | |             Vec<u8>,
[INFO] [stdout] 30 | |         )>,
[INFO] [stdout]    | |__________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ChannelSendError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 27 -         async_channel::SendError<(
[INFO] [stdout] 28 -             roles_logic_sv2::template_distribution_sv2::SetNewPrevHash<'a>,
[INFO] [stdout] 29 -             Vec<u8>,
[INFO] [stdout] 30 -         )>,
[INFO] [stdout] 27 +         (),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `target` is never read
[INFO] [stdout]    --> src/lib/proxy/bridge.rs:503:9
[INFO] [stdout]     |
[INFO] [stdout] 499 | pub struct OpenSv1Downstream {
[INFO] [stdout]     |            ----------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 503 |     pub target: Arc<Mutex<Vec<u8>>>,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `timestamp_of_last_update` and `should_aggregate` are never read
[INFO] [stdout]   --> src/lib/proxy_config.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub struct UpstreamDifficultyConfig {
[INFO] [stdout]    |            ------------------------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 40 |     pub timestamp_of_last_update: u64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 41 |     #[serde(default = "bool::default")]
[INFO] [stdout] 42 |     pub should_aggregate: bool,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UpstreamDifficultyConfig` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Sv2MiningConnection` is never constructed
[INFO] [stdout]   --> src/lib/upstream_sv2/mod.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct Sv2MiningConnection {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib/downstream_sv1/downstream.rs:567:15
[INFO] [stdout]     |
[INFO] [stdout] 567 |     fn notify(&mut self) -> Result<json_rpc::Message, v1::error::Error> {
[INFO] [stdout]     |               ^^^^^^^^^ the lifetime is elided here   ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 567 |     fn notify(&mut self) -> Result<json_rpc::Message, v1::error::Error<'_>> {
[INFO] [stdout]     |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `extranonce` and `extranonce2_len` are never read
[INFO] [stdout]   --> src/lib/downstream_sv1/mod.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct SubmitShareWithChannelId {
[INFO] [stdout]    |            ------------------------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub extranonce: Vec<u8>,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 28 |     pub extranonce2_len: usize,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SubmitShareWithChannelId` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/lib/error.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     SubmitSharesExtended(
[INFO] [stdout]    |     -------------------- field in this variant
[INFO] [stdout] 15 |         async_channel::SendError<roles_logic_sv2::mining_sv2::SubmitSharesExtended<'a>>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ChannelSendError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 15 -         async_channel::SendError<roles_logic_sv2::mining_sv2::SubmitSharesExtended<'a>>,
[INFO] [stdout] 15 +         (),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/lib/error.rs:17:20
[INFO] [stdout]    |
[INFO] [stdout] 17 |     SetNewPrevHash(async_channel::SendError<roles_logic_sv2::mining_sv2::SetNewPrevHash<'a>>),
[INFO] [stdout]    |     -------------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ChannelSendError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 17 -     SetNewPrevHash(async_channel::SendError<roles_logic_sv2::mining_sv2::SetNewPrevHash<'a>>),
[INFO] [stdout] 17 +     SetNewPrevHash(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/lib/error.rs:18:26
[INFO] [stdout]    |
[INFO] [stdout] 18 |     NewExtendedMiningJob(async_channel::SendError<NewExtendedMiningJob<'a>>),
[INFO] [stdout]    |     -------------------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ChannelSendError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 18 -     NewExtendedMiningJob(async_channel::SendError<NewExtendedMiningJob<'a>>),
[INFO] [stdout] 18 +     NewExtendedMiningJob(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/lib/error.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Notify(tokio::sync::broadcast::error::SendError<Notify<'a>>),
[INFO] [stdout]    |     ------ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ChannelSendError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 19 -     Notify(tokio::sync::broadcast::error::SendError<Notify<'a>>),
[INFO] [stdout] 19 +     Notify(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/lib/error.rs:20:15
[INFO] [stdout]    |
[INFO] [stdout] 20 |     V1Message(async_channel::SendError<v1::Message>),
[INFO] [stdout]    |     --------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ChannelSendError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 20 -     V1Message(async_channel::SendError<v1::Message>),
[INFO] [stdout] 20 +     V1Message(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/lib/error.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |     General(String),
[INFO] [stdout]    |     ------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ChannelSendError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 21 -     General(String),
[INFO] [stdout] 21 +     General(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/lib/error.rs:22:16
[INFO] [stdout]    |
[INFO] [stdout] 22 |     Extranonce(async_channel::SendError<(ExtendedExtranonce, u32)>),
[INFO] [stdout]    |     ---------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ChannelSendError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 22 -     Extranonce(async_channel::SendError<(ExtendedExtranonce, u32)>),
[INFO] [stdout] 22 +     Extranonce(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/lib/error.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     SetCustomMiningJob(
[INFO] [stdout]    |     ------------------ field in this variant
[INFO] [stdout] 24 |         async_channel::SendError<roles_logic_sv2::mining_sv2::SetCustomMiningJob<'a>>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ChannelSendError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 24 -         async_channel::SendError<roles_logic_sv2::mining_sv2::SetCustomMiningJob<'a>>,
[INFO] [stdout] 24 +         (),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/lib/error.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |       NewTemplate(
[INFO] [stdout]    |       ----------- field in this variant
[INFO] [stdout] 27 | /         async_channel::SendError<(
[INFO] [stdout] 28 | |             roles_logic_sv2::template_distribution_sv2::SetNewPrevHash<'a>,
[INFO] [stdout] 29 | |             Vec<u8>,
[INFO] [stdout] 30 | |         )>,
[INFO] [stdout]    | |__________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ChannelSendError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 27 -         async_channel::SendError<(
[INFO] [stdout] 28 -             roles_logic_sv2::template_distribution_sv2::SetNewPrevHash<'a>,
[INFO] [stdout] 29 -             Vec<u8>,
[INFO] [stdout] 30 -         )>,
[INFO] [stdout] 27 +         (),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `target` is never read
[INFO] [stdout]    --> src/lib/proxy/bridge.rs:503:9
[INFO] [stdout]     |
[INFO] [stdout] 499 | pub struct OpenSv1Downstream {
[INFO] [stdout]     |            ----------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 503 |     pub target: Arc<Mutex<Vec<u8>>>,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `tx_sv1_submit`, `rx_sv2_submit_shares_ext`, `tx_sv2_set_new_prev_hash`, `tx_sv2_new_ext_mining_job`, and `rx_sv1_notify` are never read
[INFO] [stdout]    --> src/lib/proxy/bridge.rs:518:17
[INFO] [stdout]     |
[INFO] [stdout] 517 |         pub struct BridgeInterface {
[INFO] [stdout]     |                    --------------- fields in this struct
[INFO] [stdout] 518 |             pub tx_sv1_submit: Sender<DownstreamMessages>,
[INFO] [stdout]     |                 ^^^^^^^^^^^^^
[INFO] [stdout] 519 |             pub rx_sv2_submit_shares_ext: Receiver<SubmitSharesExtended<'static>>,
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 520 |             pub tx_sv2_set_new_prev_hash: Sender<SetNewPrevHash<'static>>,
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 521 |             pub tx_sv2_new_ext_mining_job: Sender<NewExtendedMiningJob<'static>>,
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 522 |             pub rx_sv1_notify: broadcast::Receiver<server_to_client::Notify<'static>>,
[INFO] [stdout]     |                 ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `timestamp_of_last_update` and `should_aggregate` are never read
[INFO] [stdout]   --> src/lib/proxy_config.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub struct UpstreamDifficultyConfig {
[INFO] [stdout]    |            ------------------------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 40 |     pub timestamp_of_last_update: u64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 41 |     #[serde(default = "bool::default")]
[INFO] [stdout] 42 |     pub should_aggregate: bool,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UpstreamDifficultyConfig` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Sv2MiningConnection` is never constructed
[INFO] [stdout]   --> src/lib/upstream_sv2/mod.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct Sv2MiningConnection {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib/downstream_sv1/downstream.rs:567:15
[INFO] [stdout]     |
[INFO] [stdout] 567 |     fn notify(&mut self) -> Result<json_rpc::Message, v1::error::Error> {
[INFO] [stdout]     |               ^^^^^^^^^ the lifetime is elided here   ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 567 |     fn notify(&mut self) -> Result<json_rpc::Message, v1::error::Error<'_>> {
[INFO] [stdout]     |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 32.72s
[INFO] running `Command { std: "docker" "inspect" "695e153290481289eb2c33182dde5144f6d66b30446f4e033fd4270d52b27a19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "695e153290481289eb2c33182dde5144f6d66b30446f4e033fd4270d52b27a19", kill_on_drop: false }`
[INFO] [stdout] 695e153290481289eb2c33182dde5144f6d66b30446f4e033fd4270d52b27a19
