[INFO] fetching crate rs-jsonrpc-http-server 8.0.0...
[INFO] testing rs-jsonrpc-http-server-8.0.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate rs-jsonrpc-http-server 8.0.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate rs-jsonrpc-http-server 8.0.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rs-jsonrpc-http-server 8.0.0
[INFO] finished tweaking crates.io crate rs-jsonrpc-http-server 8.0.0
[INFO] tweaked toml for crates.io crate rs-jsonrpc-http-server 8.0.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a5ae02d361e8b2e932451a54f8d96ee4def5fa6997359f889e860f915acf20e2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a5ae02d361e8b2e932451a54f8d96ee4def5fa6997359f889e860f915acf20e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5ae02d361e8b2e932451a54f8d96ee4def5fa6997359f889e860f915acf20e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5ae02d361e8b2e932451a54f8d96ee4def5fa6997359f889e860f915acf20e2", kill_on_drop: false }`
[INFO] [stdout] a5ae02d361e8b2e932451a54f8d96ee4def5fa6997359f889e860f915acf20e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d5bf7d47a59146727e637456c0b47e3e143a1125d4a3a57f323c04ed92ead01a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d5bf7d47a59146727e637456c0b47e3e143a1125d4a3a57f323c04ed92ead01a", kill_on_drop: false }`
[INFO] [stderr]    Compiling language-tags v0.2.2
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling want v0.0.4
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling tokio-proto v0.1.1
[INFO] [stderr]    Compiling hyper v0.11.27
[INFO] [stderr]    Compiling rs-jsonrpc-http-server v8.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/handler.rs:23:18
[INFO] [stdout]    |
[INFO] [stdout] 23 |     middleware: Arc<RequestMiddleware>,
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn RequestMiddleware`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/handler.rs:33:19
[INFO] [stdout]    |
[INFO] [stdout] 33 |         middleware: Arc<RequestMiddleware>,
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn RequestMiddleware`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/handler.rs:93:17
[INFO] [stdout]    |
[INFO] [stdout] 93 |     Middleware(Box<Future<Item=server::Response, Error=hyper::Error> + Send>),
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=server::Response, Error=hyper::Error> + Send`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:70:17
[INFO] [stdout]    |
[INFO] [stdout] 70 |         response: Box<Future<Item=server::Response, Error=hyper::Error> + Send>,
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=server::Response, Error=hyper::Error> + Send`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:152:21
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub extractor: Arc<MetaExtractor<M>>,
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn MetaExtractor<M>`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:189:22
[INFO] [stdout]     |
[INFO] [stdout] 189 |     meta_extractor: Arc<MetaExtractor<M>>,
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn MetaExtractor<M>`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:190:26
[INFO] [stdout]     |
[INFO] [stdout] 190 |     request_middleware: Arc<RequestMiddleware>,
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn RequestMiddleware`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:346:27
[INFO] [stdout]     |
[INFO] [stdout] 346 |         }).collect::<io::Result<(Vec<_>)>>()?;
[INFO] [stdout]     |                                 ^      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 346 -         }).collect::<io::Result<(Vec<_>)>>()?;
[INFO] [stdout] 346 +         }).collect::<io::Result<Vec<_>>>()?;
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:369:26
[INFO] [stdout]     |
[INFO] [stdout] 369 |     request_middleware: Arc<RequestMiddleware>,
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn RequestMiddleware`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:449:3
[INFO] [stdout]     |
[INFO] [stdout] 449 |         try!(tcp.reuse_port(true));
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: ambiguous associated item
[INFO] [stdout]    --> src/handler.rs:100:41
[INFO] [stdout]     |
[INFO] [stdout] 100 |     fn poll(&mut self) -> Poll<Self::Item, Self::Error> {
[INFO] [stdout]     |                                            ^^^^^^^^^^^ help: use fully-qualified syntax: `<Handler<M, S> as Future>::Error`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(ambiguous_associated_items)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #57644 <https://github.com/rust-lang/rust/issues/57644>
[INFO] [stdout] note: `Error` could refer to the variant defined here
[INFO] [stdout]    --> src/handler.rs:92:2
[INFO] [stdout]     |
[INFO] [stdout] 92  |     Error(Option<Response>),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: `Error` could also refer to the associated type defined here
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-0.1.31/src/future/mod.rs:185:5
[INFO] [stdout]     |
[INFO] [stdout] 185 |     type Error;
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `hyper::server::server_proto::<impl hyper::server::Http<B>>::bind_connection`: All usage of the tokio-proto crate is going away.
[INFO] [stdout]    --> src/lib.rs:423:11
[INFO] [stdout]     |
[INFO] [stdout] 423 |                     http.bind_connection(&handle, socket, addr, ServerHandler::new(
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rs-jsonrpc-http-server` due to 2 previous errors; 11 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d5bf7d47a59146727e637456c0b47e3e143a1125d4a3a57f323c04ed92ead01a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5bf7d47a59146727e637456c0b47e3e143a1125d4a3a57f323c04ed92ead01a", kill_on_drop: false }`
[INFO] [stdout] d5bf7d47a59146727e637456c0b47e3e143a1125d4a3a57f323c04ed92ead01a