[INFO] fetching crate bitconch-jsonrpc-ws-server 0.1.0...
[INFO] testing bitconch-jsonrpc-ws-server-0.1.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate bitconch-jsonrpc-ws-server 0.1.0 into /workspace/builds/worker-49/source
[INFO] validating manifest of crates.io crate bitconch-jsonrpc-ws-server 0.1.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bitconch-jsonrpc-ws-server 0.1.0
[INFO] finished tweaking crates.io crate bitconch-jsonrpc-ws-server 0.1.0
[INFO] tweaked toml for crates.io crate bitconch-jsonrpc-ws-server 0.1.0 written to /workspace/builds/worker-49/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] [stdout] 1087e5d171f68bc468f3d06a8b4f2dbae50a108f0e4970117292431c064b60bc
[INFO] running `Command { std: "docker" "start" "-a" "1087e5d171f68bc468f3d06a8b4f2dbae50a108f0e4970117292431c064b60bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1087e5d171f68bc468f3d06a8b4f2dbae50a108f0e4970117292431c064b60bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1087e5d171f68bc468f3d06a8b4f2dbae50a108f0e4970117292431c064b60bc", kill_on_drop: false }`
[INFO] [stdout] 1087e5d171f68bc468f3d06a8b4f2dbae50a108f0e4970117292431c064b60bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 66abc3a43e880e325c8a58cd0ee65db5bf0e949afbeef6e94d08193dcee06f1e
[INFO] running `Command { std: "docker" "start" "-a" "66abc3a43e880e325c8a58cd0ee65db5bf0e949afbeef6e94d08193dcee06f1e", kill_on_drop: false }`
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[INFO] [stderr]    Compiling bitconch-jsonrpc-core v0.1.0
[INFO] [stderr]    Compiling bitconch-jsonrpc-server-utils v0.1.0
[INFO] [stderr]    Compiling bitconch-jsonrpc-ws-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server_builder.rs:19:22
[INFO] [stdout]    |
[INFO] [stdout] 19 |     meta_extractor: Arc<MetaExtractor<M>>,
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 19 -     meta_extractor: Arc<MetaExtractor<M>>,
[INFO] [stdout] 19 +     meta_extractor: Arc<dyn MetaExtractor<M>>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server_builder.rs:22:33
[INFO] [stdout]    |
[INFO] [stdout] 22 |     request_middleware: Option<Arc<session::RequestMiddleware>>,
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 22 -     request_middleware: Option<Arc<session::RequestMiddleware>>,
[INFO] [stdout] 22 +     request_middleware: Option<Arc<dyn session::RequestMiddleware>>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server_builder.rs:23:28
[INFO] [stdout]    |
[INFO] [stdout] 23 |     session_stats: Option<Arc<SessionStats>>,
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 23 -     session_stats: Option<Arc<SessionStats>>,
[INFO] [stdout] 23 +     session_stats: Option<Arc<dyn SessionStats>>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/session.rs:142:22
[INFO] [stdout]     |
[INFO] [stdout] 142 |     meta_extractor: Arc<metadata::MetaExtractor<M>>,
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 142 -     meta_extractor: Arc<metadata::MetaExtractor<M>>,
[INFO] [stdout] 142 +     meta_extractor: Arc<dyn metadata::MetaExtractor<M>>,
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/session.rs:145:33
[INFO] [stdout]     |
[INFO] [stdout] 145 |     request_middleware: Option<Arc<RequestMiddleware>>,
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 145 -     request_middleware: Option<Arc<RequestMiddleware>>,
[INFO] [stdout] 145 +     request_middleware: Option<Arc<dyn RequestMiddleware>>,
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/session.rs:146:20
[INFO] [stdout]     |
[INFO] [stdout] 146 |     stats: Option<Arc<SessionStats>>,
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 146 -     stats: Option<Arc<SessionStats>>,
[INFO] [stdout] 146 +     stats: Option<Arc<dyn SessionStats>>,
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/session.rs:280:22
[INFO] [stdout]     |
[INFO] [stdout] 280 |     meta_extractor: Arc<metadata::MetaExtractor<M>>,
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 280 -     meta_extractor: Arc<metadata::MetaExtractor<M>>,
[INFO] [stdout] 280 +     meta_extractor: Arc<dyn metadata::MetaExtractor<M>>,
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/session.rs:283:33
[INFO] [stdout]     |
[INFO] [stdout] 283 |     request_middleware: Option<Arc<RequestMiddleware>>,
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 283 -     request_middleware: Option<Arc<RequestMiddleware>>,
[INFO] [stdout] 283 +     request_middleware: Option<Arc<dyn RequestMiddleware>>,
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/session.rs:284:20
[INFO] [stdout]     |
[INFO] [stdout] 284 |     stats: Option<Arc<SessionStats>>,
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 284 -     stats: Option<Arc<SessionStats>>,
[INFO] [stdout] 284 +     stats: Option<Arc<dyn SessionStats>>,
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server.rs:46:23
[INFO] [stdout]    |
[INFO] [stdout] 46 |         meta_extractor: Arc<metadata::MetaExtractor<M>>,
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 46 -         meta_extractor: Arc<metadata::MetaExtractor<M>>,
[INFO] [stdout] 46 +         meta_extractor: Arc<dyn metadata::MetaExtractor<M>>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server.rs:49:34
[INFO] [stdout]    |
[INFO] [stdout] 49 |         request_middleware: Option<Arc<session::RequestMiddleware>>,
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 49 -         request_middleware: Option<Arc<session::RequestMiddleware>>,
[INFO] [stdout] 49 +         request_middleware: Option<Arc<dyn session::RequestMiddleware>>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server.rs:50:21
[INFO] [stdout]    |
[INFO] [stdout] 50 |         stats: Option<Arc<SessionStats>>,
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 50 -         stats: Option<Arc<SessionStats>>,
[INFO] [stdout] 50 +         stats: Option<Arc<dyn SessionStats>>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/session.rs:291:23
[INFO] [stdout]     |
[INFO] [stdout] 291 |         meta_extractor: Arc<metadata::MetaExtractor<M>>,
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 291 -         meta_extractor: Arc<metadata::MetaExtractor<M>>,
[INFO] [stdout] 291 +         meta_extractor: Arc<dyn metadata::MetaExtractor<M>>,
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/session.rs:294:34
[INFO] [stdout]     |
[INFO] [stdout] 294 |         request_middleware: Option<Arc<RequestMiddleware>>,
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 294 -         request_middleware: Option<Arc<RequestMiddleware>>,
[INFO] [stdout] 294 +         request_middleware: Option<Arc<dyn RequestMiddleware>>,
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/session.rs:295:21
[INFO] [stdout]     |
[INFO] [stdout] 295 |         stats: Option<Arc<SessionStats>>,
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 295 -         stats: Option<Arc<SessionStats>>,
[INFO] [stdout] 295 +         stats: Option<Arc<dyn SessionStats>>,
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.73s
[INFO] running `Command { std: "docker" "inspect" "66abc3a43e880e325c8a58cd0ee65db5bf0e949afbeef6e94d08193dcee06f1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66abc3a43e880e325c8a58cd0ee65db5bf0e949afbeef6e94d08193dcee06f1e", kill_on_drop: false }`
[INFO] [stdout] 66abc3a43e880e325c8a58cd0ee65db5bf0e949afbeef6e94d08193dcee06f1e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22afbedf2481f7088dc2b62d4776d1abd2e3302fde7991cd31d79942cb6c8c16
[INFO] running `Command { std: "docker" "start" "-a" "22afbedf2481f7088dc2b62d4776d1abd2e3302fde7991cd31d79942cb6c8c16", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server_builder.rs:19:22
[INFO] [stdout]    |
[INFO] [stdout] 19 |     meta_extractor: Arc<MetaExtractor<M>>,
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 19 -     meta_extractor: Arc<MetaExtractor<M>>,
[INFO] [stdout] 19 +     meta_extractor: Arc<dyn MetaExtractor<M>>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server_builder.rs:22:33
[INFO] [stdout]    |
[INFO] [stdout] 22 |     request_middleware: Option<Arc<session::RequestMiddleware>>,
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 22 -     request_middleware: Option<Arc<session::RequestMiddleware>>,
[INFO] [stdout] 22 +     request_middleware: Option<Arc<dyn session::RequestMiddleware>>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server_builder.rs:23:28
[INFO] [stdout]    |
[INFO] [stdout] 23 |     session_stats: Option<Arc<SessionStats>>,
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 23 -     session_stats: Option<Arc<SessionStats>>,
[INFO] [stdout] 23 +     session_stats: Option<Arc<dyn SessionStats>>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/session.rs:142:22
[INFO] [stdout]     |
[INFO] [stdout] 142 |     meta_extractor: Arc<metadata::MetaExtractor<M>>,
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 142 -     meta_extractor: Arc<metadata::MetaExtractor<M>>,
[INFO] [stdout] 142 +     meta_extractor: Arc<dyn metadata::MetaExtractor<M>>,
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/session.rs:145:33
[INFO] [stdout]     |
[INFO] [stdout] 145 |     request_middleware: Option<Arc<RequestMiddleware>>,
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 145 -     request_middleware: Option<Arc<RequestMiddleware>>,
[INFO] [stdout] 145 +     request_middleware: Option<Arc<dyn RequestMiddleware>>,
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/session.rs:146:20
[INFO] [stdout]     |
[INFO] [stdout] 146 |     stats: Option<Arc<SessionStats>>,
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 146 -     stats: Option<Arc<SessionStats>>,
[INFO] [stdout] 146 +     stats: Option<Arc<dyn SessionStats>>,
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/session.rs:280:22
[INFO] [stdout]     |
[INFO] [stdout] 280 |     meta_extractor: Arc<metadata::MetaExtractor<M>>,
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 280 -     meta_extractor: Arc<metadata::MetaExtractor<M>>,
[INFO] [stdout] 280 +     meta_extractor: Arc<dyn metadata::MetaExtractor<M>>,
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/session.rs:283:33
[INFO] [stdout]     |
[INFO] [stdout] 283 |     request_middleware: Option<Arc<RequestMiddleware>>,
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 283 -     request_middleware: Option<Arc<RequestMiddleware>>,
[INFO] [stdout] 283 +     request_middleware: Option<Arc<dyn RequestMiddleware>>,
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/session.rs:284:20
[INFO] [stdout]     |
[INFO] [stdout] 284 |     stats: Option<Arc<SessionStats>>,
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 284 -     stats: Option<Arc<SessionStats>>,
[INFO] [stdout] 284 +     stats: Option<Arc<dyn SessionStats>>,
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server.rs:46:23
[INFO] [stdout]    |
[INFO] [stdout] 46 |         meta_extractor: Arc<metadata::MetaExtractor<M>>,
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 46 -         meta_extractor: Arc<metadata::MetaExtractor<M>>,
[INFO] [stdout] 46 +         meta_extractor: Arc<dyn metadata::MetaExtractor<M>>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server.rs:49:34
[INFO] [stdout]    |
[INFO] [stdout] 49 |         request_middleware: Option<Arc<session::RequestMiddleware>>,
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 49 -         request_middleware: Option<Arc<session::RequestMiddleware>>,
[INFO] [stdout] 49 +         request_middleware: Option<Arc<dyn session::RequestMiddleware>>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server.rs:50:21
[INFO] [stdout]    |
[INFO] [stdout] 50 |         stats: Option<Arc<SessionStats>>,
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 50 -         stats: Option<Arc<SessionStats>>,
[INFO] [stdout] 50 +         stats: Option<Arc<dyn SessionStats>>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/session.rs:291:23
[INFO] [stdout]     |
[INFO] [stdout] 291 |         meta_extractor: Arc<metadata::MetaExtractor<M>>,
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 291 -         meta_extractor: Arc<metadata::MetaExtractor<M>>,
[INFO] [stdout] 291 +         meta_extractor: Arc<dyn metadata::MetaExtractor<M>>,
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/session.rs:294:34
[INFO] [stdout]     |
[INFO] [stdout] 294 |         request_middleware: Option<Arc<RequestMiddleware>>,
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 294 -         request_middleware: Option<Arc<RequestMiddleware>>,
[INFO] [stdout] 294 +         request_middleware: Option<Arc<dyn RequestMiddleware>>,
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/session.rs:295:21
[INFO] [stdout]     |
[INFO] [stdout] 295 |         stats: Option<Arc<SessionStats>>,
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 295 -         stats: Option<Arc<SessionStats>>,
[INFO] [stdout] 295 +         stats: Option<Arc<dyn SessionStats>>,
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling bitconch-jsonrpc-ws-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Duration` is imported redundantly
[INFO] [stdout]   --> src/tests.rs:64:6
[INFO] [stdout]    |
[INFO] [stdout] 7  | use std::time::Duration;
[INFO] [stdout]    |     ------------------- the item `Duration` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 64 |     use std::time::Duration;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server_builder.rs:19:22
[INFO] [stdout]    |
[INFO] [stdout] 19 |     meta_extractor: Arc<MetaExtractor<M>>,
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 19 -     meta_extractor: Arc<MetaExtractor<M>>,
[INFO] [stdout] 19 +     meta_extractor: Arc<dyn MetaExtractor<M>>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server_builder.rs:22:33
[INFO] [stdout]    |
[INFO] [stdout] 22 |     request_middleware: Option<Arc<session::RequestMiddleware>>,
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 22 -     request_middleware: Option<Arc<session::RequestMiddleware>>,
[INFO] [stdout] 22 +     request_middleware: Option<Arc<dyn session::RequestMiddleware>>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server_builder.rs:23:28
[INFO] [stdout]    |
[INFO] [stdout] 23 |     session_stats: Option<Arc<SessionStats>>,
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 23 -     session_stats: Option<Arc<SessionStats>>,
[INFO] [stdout] 23 +     session_stats: Option<Arc<dyn SessionStats>>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/session.rs:142:22
[INFO] [stdout]     |
[INFO] [stdout] 142 |     meta_extractor: Arc<metadata::MetaExtractor<M>>,
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 142 -     meta_extractor: Arc<metadata::MetaExtractor<M>>,
[INFO] [stdout] 142 +     meta_extractor: Arc<dyn metadata::MetaExtractor<M>>,
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/session.rs:145:33
[INFO] [stdout]     |
[INFO] [stdout] 145 |     request_middleware: Option<Arc<RequestMiddleware>>,
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 145 -     request_middleware: Option<Arc<RequestMiddleware>>,
[INFO] [stdout] 145 +     request_middleware: Option<Arc<dyn RequestMiddleware>>,
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/session.rs:146:20
[INFO] [stdout]     |
[INFO] [stdout] 146 |     stats: Option<Arc<SessionStats>>,
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 146 -     stats: Option<Arc<SessionStats>>,
[INFO] [stdout] 146 +     stats: Option<Arc<dyn SessionStats>>,
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/session.rs:280:22
[INFO] [stdout]     |
[INFO] [stdout] 280 |     meta_extractor: Arc<metadata::MetaExtractor<M>>,
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 280 -     meta_extractor: Arc<metadata::MetaExtractor<M>>,
[INFO] [stdout] 280 +     meta_extractor: Arc<dyn metadata::MetaExtractor<M>>,
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/session.rs:283:33
[INFO] [stdout]     |
[INFO] [stdout] 283 |     request_middleware: Option<Arc<RequestMiddleware>>,
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 283 -     request_middleware: Option<Arc<RequestMiddleware>>,
[INFO] [stdout] 283 +     request_middleware: Option<Arc<dyn RequestMiddleware>>,
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/session.rs:284:20
[INFO] [stdout]     |
[INFO] [stdout] 284 |     stats: Option<Arc<SessionStats>>,
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 284 -     stats: Option<Arc<SessionStats>>,
[INFO] [stdout] 284 +     stats: Option<Arc<dyn SessionStats>>,
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server.rs:46:23
[INFO] [stdout]    |
[INFO] [stdout] 46 |         meta_extractor: Arc<metadata::MetaExtractor<M>>,
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 46 -         meta_extractor: Arc<metadata::MetaExtractor<M>>,
[INFO] [stdout] 46 +         meta_extractor: Arc<dyn metadata::MetaExtractor<M>>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server.rs:49:34
[INFO] [stdout]    |
[INFO] [stdout] 49 |         request_middleware: Option<Arc<session::RequestMiddleware>>,
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 49 -         request_middleware: Option<Arc<session::RequestMiddleware>>,
[INFO] [stdout] 49 +         request_middleware: Option<Arc<dyn session::RequestMiddleware>>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server.rs:50:21
[INFO] [stdout]    |
[INFO] [stdout] 50 |         stats: Option<Arc<SessionStats>>,
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 50 -         stats: Option<Arc<SessionStats>>,
[INFO] [stdout] 50 +         stats: Option<Arc<dyn SessionStats>>,
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/session.rs:291:23
[INFO] [stdout]     |
[INFO] [stdout] 291 |         meta_extractor: Arc<metadata::MetaExtractor<M>>,
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 291 -         meta_extractor: Arc<metadata::MetaExtractor<M>>,
[INFO] [stdout] 291 +         meta_extractor: Arc<dyn metadata::MetaExtractor<M>>,
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/session.rs:294:34
[INFO] [stdout]     |
[INFO] [stdout] 294 |         request_middleware: Option<Arc<RequestMiddleware>>,
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 294 -         request_middleware: Option<Arc<RequestMiddleware>>,
[INFO] [stdout] 294 +         request_middleware: Option<Arc<dyn RequestMiddleware>>,
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/session.rs:295:21
[INFO] [stdout]     |
[INFO] [stdout] 295 |         stats: Option<Arc<SessionStats>>,
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 295 -         stats: Option<Arc<SessionStats>>,
[INFO] [stdout] 295 +         stats: Option<Arc<dyn SessionStats>>,
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.16s
[INFO] running `Command { std: "docker" "inspect" "22afbedf2481f7088dc2b62d4776d1abd2e3302fde7991cd31d79942cb6c8c16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22afbedf2481f7088dc2b62d4776d1abd2e3302fde7991cd31d79942cb6c8c16", kill_on_drop: false }`
[INFO] [stdout] 22afbedf2481f7088dc2b62d4776d1abd2e3302fde7991cd31d79942cb6c8c16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d6d3e3e24b82b213d82c43058a8f24f7efe62513c1080d1c4418c2b4803b88f1
[INFO] running `Command { std: "docker" "start" "-a" "d6d3e3e24b82b213d82c43058a8f24f7efe62513c1080d1c4418c2b4803b88f1", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/server_builder.rs:19:22
[INFO] [stderr]    |
[INFO] [stderr] 19 |     meta_extractor: Arc<MetaExtractor<M>>,
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 19 -     meta_extractor: Arc<MetaExtractor<M>>,
[INFO] [stderr] 19 +     meta_extractor: Arc<dyn MetaExtractor<M>>,
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/server_builder.rs:22:33
[INFO] [stderr]    |
[INFO] [stderr] 22 |     request_middleware: Option<Arc<session::RequestMiddleware>>,
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 22 -     request_middleware: Option<Arc<session::RequestMiddleware>>,
[INFO] [stderr] 22 +     request_middleware: Option<Arc<dyn session::RequestMiddleware>>,
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/server_builder.rs:23:28
[INFO] [stderr]    |
[INFO] [stderr] 23 |     session_stats: Option<Arc<SessionStats>>,
[INFO] [stderr]    |                               ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 23 -     session_stats: Option<Arc<SessionStats>>,
[INFO] [stderr] 23 +     session_stats: Option<Arc<dyn SessionStats>>,
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/session.rs:142:22
[INFO] [stderr]     |
[INFO] [stderr] 142 |     meta_extractor: Arc<metadata::MetaExtractor<M>>,
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 142 -     meta_extractor: Arc<metadata::MetaExtractor<M>>,
[INFO] [stderr] 142 +     meta_extractor: Arc<dyn metadata::MetaExtractor<M>>,
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/session.rs:145:33
[INFO] [stderr]     |
[INFO] [stderr] 145 |     request_middleware: Option<Arc<RequestMiddleware>>,
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 145 -     request_middleware: Option<Arc<RequestMiddleware>>,
[INFO] [stderr] 145 +     request_middleware: Option<Arc<dyn RequestMiddleware>>,
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/session.rs:146:20
[INFO] [stderr]     |
[INFO] [stderr] 146 |     stats: Option<Arc<SessionStats>>,
[INFO] [stderr]     |                       ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 146 -     stats: Option<Arc<SessionStats>>,
[INFO] [stderr] 146 +     stats: Option<Arc<dyn SessionStats>>,
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/session.rs:280:22
[INFO] [stderr]     |
[INFO] [stderr] 280 |     meta_extractor: Arc<metadata::MetaExtractor<M>>,
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 280 -     meta_extractor: Arc<metadata::MetaExtractor<M>>,
[INFO] [stderr] 280 +     meta_extractor: Arc<dyn metadata::MetaExtractor<M>>,
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/session.rs:283:33
[INFO] [stderr]     |
[INFO] [stderr] 283 |     request_middleware: Option<Arc<RequestMiddleware>>,
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 283 -     request_middleware: Option<Arc<RequestMiddleware>>,
[INFO] [stderr] 283 +     request_middleware: Option<Arc<dyn RequestMiddleware>>,
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/session.rs:284:20
[INFO] [stderr]     |
[INFO] [stderr] 284 |     stats: Option<Arc<SessionStats>>,
[INFO] [stderr]     |                       ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 284 -     stats: Option<Arc<SessionStats>>,
[INFO] [stderr] 284 +     stats: Option<Arc<dyn SessionStats>>,
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/server.rs:46:23
[INFO] [stderr]    |
[INFO] [stderr] 46 |         meta_extractor: Arc<metadata::MetaExtractor<M>>,
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 46 -         meta_extractor: Arc<metadata::MetaExtractor<M>>,
[INFO] [stderr] 46 +         meta_extractor: Arc<dyn metadata::MetaExtractor<M>>,
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/server.rs:49:34
[INFO] [stderr]    |
[INFO] [stderr] 49 |         request_middleware: Option<Arc<session::RequestMiddleware>>,
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 49 -         request_middleware: Option<Arc<session::RequestMiddleware>>,
[INFO] [stderr] 49 +         request_middleware: Option<Arc<dyn session::RequestMiddleware>>,
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/server.rs:50:21
[INFO] [stderr]    |
[INFO] [stderr] 50 |         stats: Option<Arc<SessionStats>>,
[INFO] [stderr]    |                           ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 50 -         stats: Option<Arc<SessionStats>>,
[INFO] [stderr] 50 +         stats: Option<Arc<dyn SessionStats>>,
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/session.rs:291:23
[INFO] [stderr]     |
[INFO] [stderr] 291 |         meta_extractor: Arc<metadata::MetaExtractor<M>>,
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 291 -         meta_extractor: Arc<metadata::MetaExtractor<M>>,
[INFO] [stderr] 291 +         meta_extractor: Arc<dyn metadata::MetaExtractor<M>>,
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/session.rs:294:34
[INFO] [stderr]     |
[INFO] [stderr] 294 |         request_middleware: Option<Arc<RequestMiddleware>>,
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 294 -         request_middleware: Option<Arc<RequestMiddleware>>,
[INFO] [stderr] 294 +         request_middleware: Option<Arc<dyn RequestMiddleware>>,
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/session.rs:295:21
[INFO] [stderr]     |
[INFO] [stderr] 295 |         stats: Option<Arc<SessionStats>>,
[INFO] [stderr]     |                           ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 295 -         stats: Option<Arc<SessionStats>>,
[INFO] [stderr] 295 +         stats: Option<Arc<dyn SessionStats>>,
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Duration` is imported redundantly
[INFO] [stderr]   --> src/tests.rs:64:6
[INFO] [stderr]    |
[INFO] [stderr] 7  | use std::time::Duration;
[INFO] [stderr]    |     ------------------- the item `Duration` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 64 |     use std::time::Duration;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `bitconch-jsonrpc-ws-server` (lib) generated 15 warnings
[INFO] [stderr] warning: `bitconch-jsonrpc-ws-server` (lib test) generated 16 warnings (15 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.26s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/bitconch_jsonrpc_ws_server-890a16e081f16edf)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test tests::should_disallow_not_whitelisted_origins ... ok
[INFO] [stdout] test tests::bind_port_zero_should_give_random_port ... ok
[INFO] [stdout] test tests::should_disallow_not_whitelisted_hosts ... ok
[INFO] [stdout] test tests::should_allow_whitelisted_origins ... ok
[INFO] [stdout] test tests::should_intercept_in_middleware ... ok
[INFO] [stdout] test tests::drop_session_should_cancel ... ok
[INFO] [stdout] test tests::close_handle_makes_wait_return ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.57s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests bitconch-jsonrpc-ws-server
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d6d3e3e24b82b213d82c43058a8f24f7efe62513c1080d1c4418c2b4803b88f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6d3e3e24b82b213d82c43058a8f24f7efe62513c1080d1c4418c2b4803b88f1", kill_on_drop: false }`
[INFO] [stdout] d6d3e3e24b82b213d82c43058a8f24f7efe62513c1080d1c4418c2b4803b88f1