[INFO] fetching crate rs-jsonrpc-macros 8.0.0...
[INFO] checking rs-jsonrpc-macros-8.0.0 against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] extracting crate rs-jsonrpc-macros 8.0.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate rs-jsonrpc-macros 8.0.0
[INFO] finished tweaking crates.io crate rs-jsonrpc-macros 8.0.0
[INFO] tweaked toml for crates.io crate rs-jsonrpc-macros 8.0.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rs-jsonrpc-macros 8.0.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 92 packages to latest compatible versions
[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] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 6634ff776d8a3affe815398b753bb5b3e40e0dbc09d40c40465021db9fb2f49e
[INFO] running `Command { std: "docker" "start" "-a" "6634ff776d8a3affe815398b753bb5b3e40e0dbc09d40c40465021db9fb2f49e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6634ff776d8a3affe815398b753bb5b3e40e0dbc09d40c40465021db9fb2f49e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6634ff776d8a3affe815398b753bb5b3e40e0dbc09d40c40465021db9fb2f49e", kill_on_drop: false }`
[INFO] [stdout] 6634ff776d8a3affe815398b753bb5b3e40e0dbc09d40c40465021db9fb2f49e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 1cb5c0c905a0d73d0ac844b4e17fe4814f338811a6603ab9bd45ec0c7d85b906
[INFO] running `Command { std: "docker" "start" "-a" "1cb5c0c905a0d73d0ac844b4e17fe4814f338811a6603ab9bd45ec0c7d85b906", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling libc v0.2.180
[INFO] [stderr]     Checking log v0.4.29
[INFO] [stderr]    Compiling proc-macro2 v1.0.105
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
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[INFO] [stderr]    Compiling quote v1.0.43
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[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking smallvec v0.6.14
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[INFO] [stderr]     Checking globset v0.1.4
[INFO] [stderr]     Checking tokio-core v0.1.18
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]     Checking rs-jsonrpc-core v8.0.0
[INFO] [stderr]     Checking rs-jsonrpc-pubsub v8.0.0
[INFO] [stderr]     Checking rs-jsonrpc-server-utils v8.0.0
[INFO] [stderr]     Checking rs-jsonrpc-macros v8.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rs-jsonrpc-tcp-server v8.0.0
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/auto_args.rs:443:12
[INFO] [stdout]     |
[INFO] [stdout] 443 |     let len = try!(params_len(&params));
[INFO] [stdout]     |               ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a macro
[INFO] [stdout]   --> src/auto_args.rs:74:1
[INFO] [stdout]    |
[INFO] [stdout] 74 | macro_rules! build_rpc_trait {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 | #![warn(missing_docs)]
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/auto_args.rs:443:12
[INFO] [stdout]     |
[INFO] [stdout] 443 |     let len = try!(params_len(&params));
[INFO] [stdout]     |               ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> examples/std.rs:16:17
[INFO] [stdout]    |
[INFO] [stdout] 16 |         fn add(&self, u64, u64) -> Result<u64>;
[INFO] [stdout]    |                       ^^^ help: try naming the parameter or explicitly ignoring it: `_: u64`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` (part of `#[warn(rust_2018_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> examples/std.rs:16:22
[INFO] [stdout]    |
[INFO] [stdout] 16 |         fn add(&self, u64, u64) -> Result<u64>;
[INFO] [stdout]    |                            ^^^ help: try naming the parameter or explicitly ignoring it: `_: u64`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> examples/std.rs:20:18
[INFO] [stdout]    |
[INFO] [stdout] 20 |         fn call(&self, u64) -> FutureResult<String, Error>;
[INFO] [stdout]    |                        ^^^ help: try naming the parameter or explicitly ignoring it: `_: u64`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> tests/pubsub-macros.rs:20:24
[INFO] [stdout]    |
[INFO] [stdout] 20 |             fn subscribe(&self, Self::Metadata, pubsub::Subscriber<String>, u32, Trailing<u64>);
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self::Metadata`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` (part of `#[warn(rust_2018_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> tests/pubsub-macros.rs:20:40
[INFO] [stdout]    |
[INFO] [stdout] 20 |             fn subscribe(&self, Self::Metadata, pubsub::Subscriber<String>, u32, Trailing<u64>);
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: pubsub::Subscriber<String>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> tests/pubsub-macros.rs:20:68
[INFO] [stdout]    |
[INFO] [stdout] 20 |             fn subscribe(&self, Self::Metadata, pubsub::Subscriber<String>, u32, Trailing<u64>);
[INFO] [stdout]    |                                                                             ^^^ help: try naming the parameter or explicitly ignoring it: `_: u32`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> tests/pubsub-macros.rs:20:73
[INFO] [stdout]    |
[INFO] [stdout] 20 |             fn subscribe(&self, Self::Metadata, pubsub::Subscriber<String>, u32, Trailing<u64>);
[INFO] [stdout]    |                                                                                  ^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Trailing<u64>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> tests/pubsub-macros.rs:24:26
[INFO] [stdout]    |
[INFO] [stdout] 24 |             fn unsubscribe(&self, SubscriptionId) -> Result<bool>;
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: SubscriptionId`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> examples/pubsub-macros.rs:35:17
[INFO] [stdout]    |
[INFO] [stdout] 35 |         fn add(&self, u64, u64) -> Result<u64>;
[INFO] [stdout]    |                       ^^^ help: try naming the parameter or explicitly ignoring it: `_: u64`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` (part of `#[warn(rust_2018_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> examples/pubsub-macros.rs:35:22
[INFO] [stdout]    |
[INFO] [stdout] 35 |         fn add(&self, u64, u64) -> Result<u64>;
[INFO] [stdout]    |                            ^^^ help: try naming the parameter or explicitly ignoring it: `_: u64`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> examples/pubsub-macros.rs:40:24
[INFO] [stdout]    |
[INFO] [stdout] 40 |             fn subscribe(&self, Self::Metadata, pubsub::Subscriber<String>, u64);
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self::Metadata`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> examples/pubsub-macros.rs:40:40
[INFO] [stdout]    |
[INFO] [stdout] 40 |             fn subscribe(&self, Self::Metadata, pubsub::Subscriber<String>, u64);
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: pubsub::Subscriber<String>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> examples/pubsub-macros.rs:40:68
[INFO] [stdout]    |
[INFO] [stdout] 40 |             fn subscribe(&self, Self::Metadata, pubsub::Subscriber<String>, u64);
[INFO] [stdout]    |                                                                             ^^^ help: try naming the parameter or explicitly ignoring it: `_: u64`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> examples/pubsub-macros.rs:44:26
[INFO] [stdout]    |
[INFO] [stdout] 44 |             fn unsubscribe(&self, SubscriptionId) -> Result<bool>;
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: SubscriptionId`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> examples/meta-macros.rs:21:17
[INFO] [stdout]    |
[INFO] [stdout] 21 |         fn add(&self, u64, u64) -> Result<u64>;
[INFO] [stdout]    |                       ^^^ help: try naming the parameter or explicitly ignoring it: `_: u64`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` (part of `#[warn(rust_2018_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> examples/meta-macros.rs:21:22
[INFO] [stdout]    |
[INFO] [stdout] 21 |         fn add(&self, u64, u64) -> Result<u64>;
[INFO] [stdout]    |                            ^^^ help: try naming the parameter or explicitly ignoring it: `_: u64`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> examples/meta-macros.rs:25:17
[INFO] [stdout]    |
[INFO] [stdout] 25 |         fn mul(&self, u64, rs_jsonrpc_macros::Trailing<u64>) -> Result<u64>;
[INFO] [stdout]    |                       ^^^ help: try naming the parameter or explicitly ignoring it: `_: u64`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> examples/meta-macros.rs:25:22
[INFO] [stdout]    |
[INFO] [stdout] 25 |         fn mul(&self, u64, rs_jsonrpc_macros::Trailing<u64>) -> Result<u64>;
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: rs_jsonrpc_macros::Trailing<u64>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> examples/meta-macros.rs:29:18
[INFO] [stdout]    |
[INFO] [stdout] 29 |         fn call(&self, u64) -> FutureResult<String, Error>;
[INFO] [stdout]    |                        ^^^ help: try naming the parameter or explicitly ignoring it: `_: u64`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> examples/meta-macros.rs:33:23
[INFO] [stdout]    |
[INFO] [stdout] 33 |         fn call_meta(&self, Self::Metadata, BTreeMap<String, Value>) -> FutureResult<String, Error>;
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self::Metadata`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> examples/meta-macros.rs:33:39
[INFO] [stdout]    |
[INFO] [stdout] 33 |         fn call_meta(&self, Self::Metadata, BTreeMap<String, Value>) -> FutureResult<String, Error>;
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: BTreeMap<String, Value>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a macro
[INFO] [stdout]   --> src/auto_args.rs:74:1
[INFO] [stdout]    |
[INFO] [stdout] 74 | macro_rules! build_rpc_trait {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 | #![warn(missing_docs)]
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.54s
[INFO] running `Command { std: "docker" "inspect" "1cb5c0c905a0d73d0ac844b4e17fe4814f338811a6603ab9bd45ec0c7d85b906", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cb5c0c905a0d73d0ac844b4e17fe4814f338811a6603ab9bd45ec0c7d85b906", kill_on_drop: false }`
[INFO] [stdout] 1cb5c0c905a0d73d0ac844b4e17fe4814f338811a6603ab9bd45ec0c7d85b906
