[INFO] fetching crate susy-jsonrpc-core 8.0.0...
[INFO] checking susy-jsonrpc-core-8.0.0 against master#35936c4839dd272646394779d151e060d0f6b3ac for pr-122960-1
[INFO] extracting crate susy-jsonrpc-core 8.0.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate susy-jsonrpc-core 8.0.0 on toolchain 35936c4839dd272646394779d151e060d0f6b3ac
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate susy-jsonrpc-core 8.0.0
[INFO] finished tweaking crates.io crate susy-jsonrpc-core 8.0.0
[INFO] tweaked toml for crates.io crate susy-jsonrpc-core 8.0.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "generate-lockfile" "--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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0cab34f0d74713f0610a6d982bc7964880d6e554182f6c00efeae09530d2658a
[INFO] running `Command { std: "docker" "start" "-a" "0cab34f0d74713f0610a6d982bc7964880d6e554182f6c00efeae09530d2658a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0cab34f0d74713f0610a6d982bc7964880d6e554182f6c00efeae09530d2658a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cab34f0d74713f0610a6d982bc7964880d6e554182f6c00efeae09530d2658a", kill_on_drop: false }`
[INFO] [stdout] 0cab34f0d74713f0610a6d982bc7964880d6e554182f6c00efeae09530d2658a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20c04f7db4e6c603c9ea63e1dcb7031ea76720274eaf01244e153a697b6f195a
[INFO] running `Command { std: "docker" "start" "-a" "20c04f7db4e6c603c9ea63e1dcb7031ea76720274eaf01244e153a697b6f195a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling serde_json v1.0.115
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]     Checking ryu v1.0.17
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.55
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking susy-jsonrpc-core v8.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/io.rs:5:5
[INFO] [stdout]    |
[INFO] [stdout] 5  | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub extern crate serde_json;
[INFO] [stdout]    | ---------------------------- the item `serde_json` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `futures` is imported redundantly
[INFO] [stdout]   --> src/io.rs:6:15
[INFO] [stdout]    |
[INFO] [stdout] 6  | use futures::{self, future, Future};
[INFO] [stdout]    |               ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub extern crate futures;
[INFO] [stdout]    | ------------------------- the item `futures` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/types/error.rs:67:19
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let code: i64 = try!(Deserialize::deserialize(deserializer));
[INFO] [stdout]    |                         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/types/params.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub extern crate serde_json;
[INFO] [stdout]    | ---------------------------- the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/types/request.rs:75:18
[INFO] [stdout]    |
[INFO] [stdout] 75 |         let v: Value = try!(Deserialize::deserialize(deserializer));
[INFO] [stdout]    |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/types/request.rs:110:18
[INFO] [stdout]     |
[INFO] [stdout] 110 |         let v: Value = try!(Deserialize::deserialize(deserializer));
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/types/response.rs:97:18
[INFO] [stdout]    |
[INFO] [stdout] 97 |         let v: Value = try!(Deserialize::deserialize(deserializer));
[INFO] [stdout]    |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/types/response.rs:126:18
[INFO] [stdout]     |
[INFO] [stdout] 126 |         let v: Value = try!(Deserialize::deserialize(deserializer));
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:42:29
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub type BoxFuture<T> = Box<futures::Future<Item = T, Error = Error> + Send>;
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub type BoxFuture<T> = Box<dyn futures::Future<Item = T, Error = Error> + Send>;
[INFO] [stdout]    |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/calls.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Method(Arc<RpcMethod<T>>),
[INFO] [stdout]    |                ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Method(Arc<dyn RpcMethod<T>>),
[INFO] [stdout]    |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/calls.rs:43:19
[INFO] [stdout]    |
[INFO] [stdout] 43 |     Notification(Arc<RpcNotification<T>>),
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 43 |     Notification(Arc<dyn RpcNotification<T>>),
[INFO] [stdout]    |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/io.rs:24:6
[INFO] [stdout]    |
[INFO] [stdout] 24 |     Box<Future<Item=Option<Output>, Error=()> + Send>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 24 |     Box<dyn Future<Item=Option<Output>, Error=()> + Send>,
[INFO] [stdout]    |         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/io.rs:14:31
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub type FutureResponse = Box<Future<Item=Option<Response>, Error=()> + Send>;
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub type FutureResponse = Box<dyn Future<Item=Option<Response>, Error=()> + Send>;
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/middleware.rs:24:20
[INFO] [stdout]    |
[INFO] [stdout] 24 |     type Future = Box<Future<Item=Option<Response>, Error=()> + Send>;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 24 |     type Future = Box<dyn Future<Item=Option<Response>, Error=()> + Send>;
[INFO] [stdout]    |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/io.rs:5:5
[INFO] [stdout]    |
[INFO] [stdout] 5  | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub extern crate serde_json;
[INFO] [stdout]    | ---------------------------- the item `serde_json` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `futures` is imported redundantly
[INFO] [stdout]   --> src/io.rs:6:15
[INFO] [stdout]    |
[INFO] [stdout] 6  | use futures::{self, future, Future};
[INFO] [stdout]    |               ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub extern crate futures;
[INFO] [stdout]    | ------------------------- the item `futures` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `futures` is imported redundantly
[INFO] [stdout]    --> src/io.rs:345:6
[INFO] [stdout]     |
[INFO] [stdout] 345 |     use futures;
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:30:1
[INFO] [stdout]     |
[INFO] [stdout] 30  | pub extern crate futures;
[INFO] [stdout]     | ------------------------- the item `futures` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/types/error.rs:67:19
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let code: i64 = try!(Deserialize::deserialize(deserializer));
[INFO] [stdout]    |                         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/types/id.rs:65:6
[INFO] [stdout]    |
[INFO] [stdout] 65 |     use serde_json;
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub extern crate serde_json;
[INFO] [stdout]    | ---------------------------- the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/types/params.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub extern crate serde_json;
[INFO] [stdout]    | ---------------------------- the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/types/params.rs:93:6
[INFO] [stdout]    |
[INFO] [stdout] 93 |     use serde_json;
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub extern crate serde_json;
[INFO] [stdout]    | ---------------------------- the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/types/request.rs:75:18
[INFO] [stdout]    |
[INFO] [stdout] 75 |         let v: Value = try!(Deserialize::deserialize(deserializer));
[INFO] [stdout]    |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/types/request.rs:110:18
[INFO] [stdout]     |
[INFO] [stdout] 110 |         let v: Value = try!(Deserialize::deserialize(deserializer));
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/types/response.rs:97:18
[INFO] [stdout]    |
[INFO] [stdout] 97 |         let v: Value = try!(Deserialize::deserialize(deserializer));
[INFO] [stdout]    |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/types/response.rs:126:18
[INFO] [stdout]     |
[INFO] [stdout] 126 |         let v: Value = try!(Deserialize::deserialize(deserializer));
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:42:29
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub type BoxFuture<T> = Box<futures::Future<Item = T, Error = Error> + Send>;
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub type BoxFuture<T> = Box<dyn futures::Future<Item = T, Error = Error> + Send>;
[INFO] [stdout]    |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/calls.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Method(Arc<RpcMethod<T>>),
[INFO] [stdout]    |                ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Method(Arc<dyn RpcMethod<T>>),
[INFO] [stdout]    |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/io.rs:223:37
[INFO] [stdout]     |
[INFO] [stdout] 223 |                 let call_method = |method: &Arc<RpcMethod<T>>| {
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 223 |                 let call_method = |method: &Arc<dyn RpcMethod<T>>| {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/calls.rs:43:19
[INFO] [stdout]    |
[INFO] [stdout] 43 |     Notification(Arc<RpcNotification<T>>),
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 43 |     Notification(Arc<dyn RpcNotification<T>>),
[INFO] [stdout]    |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/io.rs:24:6
[INFO] [stdout]    |
[INFO] [stdout] 24 |     Box<Future<Item=Option<Output>, Error=()> + Send>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 24 |     Box<dyn Future<Item=Option<Output>, Error=()> + Send>,
[INFO] [stdout]    |         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/io.rs:14:31
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub type FutureResponse = Box<Future<Item=Option<Response>, Error=()> + Send>;
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub type FutureResponse = Box<dyn Future<Item=Option<Response>, Error=()> + Send>;
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/middleware.rs:24:20
[INFO] [stdout]    |
[INFO] [stdout] 24 |     type Future = Box<Future<Item=Option<Response>, Error=()> + Send>;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 24 |     type Future = Box<dyn Future<Item=Option<Response>, Error=()> + Send>;
[INFO] [stdout]    |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/io.rs:223:37
[INFO] [stdout]     |
[INFO] [stdout] 223 |                 let call_method = |method: &Arc<RpcMethod<T>>| {
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 223 |                 let call_method = |method: &Arc<dyn RpcMethod<T>>| {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.38s
[INFO] running `Command { std: "docker" "inspect" "20c04f7db4e6c603c9ea63e1dcb7031ea76720274eaf01244e153a697b6f195a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20c04f7db4e6c603c9ea63e1dcb7031ea76720274eaf01244e153a697b6f195a", kill_on_drop: false }`
[INFO] [stdout] 20c04f7db4e6c603c9ea63e1dcb7031ea76720274eaf01244e153a697b6f195a