[INFO] cloning repository https://github.com/hlb8122/bitcoin-spring
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hlb8122/bitcoin-spring" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhlb8122%2Fbitcoin-spring", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhlb8122%2Fbitcoin-spring'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d391ca967077a92bd419e25e6f981a5d6e5d67b9
[INFO] checking hlb8122/bitcoin-spring against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhlb8122%2Fbitcoin-spring" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/hlb8122/bitcoin-spring
[INFO] finished tweaking git repo https://github.com/hlb8122/bitcoin-spring
[INFO] tweaked toml for git repo https://github.com/hlb8122/bitcoin-spring written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/hlb8122/bitcoin-spring on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/hlb8122/bitcoin-spring already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] [stdout] a8567b097988ff798c41235a48af44e29cf8719b26b5eb203c15c47ca7bef075
[INFO] running `Command { std: "docker" "start" "-a" "a8567b097988ff798c41235a48af44e29cf8719b26b5eb203c15c47ca7bef075", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8567b097988ff798c41235a48af44e29cf8719b26b5eb203c15c47ca7bef075", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8567b097988ff798c41235a48af44e29cf8719b26b5eb203c15c47ca7bef075", kill_on_drop: false }`
[INFO] [stdout] a8567b097988ff798c41235a48af44e29cf8719b26b5eb203c15c47ca7bef075
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 73d5c53ae31d4f575ab1b61906ec67d77585c30192e474d13ec944ed5958dcc0
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[INFO] [stderr]    Compiling prost-build v0.5.0
[INFO] [stderr]     Checking futures-zmq v0.5.0
[INFO] [stderr]     Checking bitcoin-zmq v0.1.0 (https://github.com/hlb8122/rust-bitcoin-zmq.git#7f9bc924)
[INFO] [stderr]     Checking tower-hyper v0.1.0
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[INFO] [stderr]    Compiling tower-grpc-build v0.1.0
[INFO] [stderr]    Compiling bitcoin-spring v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:60:30
[INFO] [stdout]     |
[INFO] [stdout]  60 |             Err(e) => return Err(From::from(e)),
[INFO] [stdout]     |                              ^^^^-------------^
[INFO] [stdout]     |                              |   |
[INFO] [stdout]     |                              |   any code following this expression is unreachable
[INFO] [stdout]     |                              unreachable expression
[INFO] [stdout] ...
[INFO] [stdout] 171 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                        ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `Never`, which is uninhabited
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:60:34
[INFO] [stdout]     |
[INFO] [stdout]  60 |             Err(e) => return Err(From::from(e)),
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 171 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                        ---------------------- in this macro invocation
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]     = note: this warning originates in the macro `try_ready` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:60:30
[INFO] [stdout]     |
[INFO] [stdout]  60 |             Err(e) => return Err(From::from(e)),
[INFO] [stdout]     |                              ^^^^-------------^
[INFO] [stdout]     |                              |   |
[INFO] [stdout]     |                              |   any code following this expression is unreachable
[INFO] [stdout]     |                              unreachable expression
[INFO] [stdout] ...
[INFO] [stdout] 171 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                        ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `Never`, which is uninhabited
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:60:34
[INFO] [stdout]     |
[INFO] [stdout]  60 |             Err(e) => return Err(From::from(e)),
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 171 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                        ---------------------- in this macro invocation
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]     = note: this warning originates in the macro `try_ready` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:60:30
[INFO] [stdout]     |
[INFO] [stdout]  60 |             Err(e) => return Err(From::from(e)),
[INFO] [stdout]     |                              ^^^^-------------^
[INFO] [stdout]     |                              |   |
[INFO] [stdout]     |                              |   any code following this expression is unreachable
[INFO] [stdout]     |                              unreachable expression
[INFO] [stdout] ...
[INFO] [stdout] 178 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                        ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `Never`, which is uninhabited
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:60:34
[INFO] [stdout]     |
[INFO] [stdout]  60 |             Err(e) => return Err(From::from(e)),
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 178 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                        ---------------------- in this macro invocation
[INFO] [stdout]     = note: this warning originates in the macro `try_ready` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:60:30
[INFO] [stdout]     |
[INFO] [stdout]  60 |             Err(e) => return Err(From::from(e)),
[INFO] [stdout]     |                              ^^^^-------------^
[INFO] [stdout]     |                              |   |
[INFO] [stdout]     |                              |   any code following this expression is unreachable
[INFO] [stdout]     |                              unreachable expression
[INFO] [stdout] ...
[INFO] [stdout] 178 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                        ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `Never`, which is uninhabited
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:60:34
[INFO] [stdout]     |
[INFO] [stdout]  60 |             Err(e) => return Err(From::from(e)),
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 178 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                        ---------------------- in this macro invocation
[INFO] [stdout]     = note: this warning originates in the macro `try_ready` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Async<()>, Never>
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:91:68
[INFO] [stdout]    |
[INFO] [stdout] 91 |           fn poll_ready(&mut self) -> futures::Poll<(), Self::Error> {
[INFO] [stdout]    |  ____________________________________________________________________^
[INFO] [stdout] 92 | |             Ok(().into())
[INFO] [stdout] 93 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Async<()>, Never>
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:92:13
[INFO] [stdout]    |
[INFO] [stdout] 92 |             Ok(().into())
[INFO] [stdout]    |             ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Async<()>, Never>
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:118:68
[INFO] [stdout]     |
[INFO] [stdout] 118 |           fn poll_ready(&mut self) -> futures::Poll<(), Self::Error> {
[INFO] [stdout]     |  ____________________________________________________________________^
[INFO] [stdout] 119 | |             Ok(futures::Async::Ready(()))
[INFO] [stdout] 120 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Async<()>, Never>
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:119:13
[INFO] [stdout]     |
[INFO] [stdout] 119 |             Ok(futures::Async::Ready(()))
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Async<()>, Never>
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:134:68
[INFO] [stdout]     |
[INFO] [stdout] 134 |           fn poll_ready(&mut self) -> futures::Poll<(), Self::Error> {
[INFO] [stdout]     |  ____________________________________________________________________^
[INFO] [stdout] 135 | |             tower::Service::<http::Request<grpc::BoxBody>>::poll_ready(self)
[INFO] [stdout] 136 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Async<()>, Never>
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:135:13
[INFO] [stdout]     |
[INFO] [stdout] 135 |             tower::Service::<http::Request<grpc::BoxBody>>::poll_ready(self)
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Async<tower_grpc::codegen::server::http::Response<ResponseBody<T>>>, Never>
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:166:74
[INFO] [stdout]     |
[INFO] [stdout] 166 |               fn poll(&mut self) -> futures::Poll<Self::Item, Self::Error> {
[INFO] [stdout]     |  __________________________________________________________________________^
[INFO] [stdout] 167 | |                 use self::Kind::*;
[INFO] [stdout] 168 | |
[INFO] [stdout] 169 | |                 match self.kind {
[INFO] [stdout] ...   |
[INFO] [stdout] 185 | |             }
[INFO] [stdout]     | |_____________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Async<tower_grpc::codegen::server::http::Response<ResponseBody<T>>>, Never>
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:169:17
[INFO] [stdout]     |
[INFO] [stdout] 169 | /                 match self.kind {
[INFO] [stdout] 170 | |                     Subscribe(ref mut fut) => {
[INFO] [stdout] 171 | |                         let response = try_ready!(fut.poll());
[INFO] [stdout] 172 | |                         let response = response.map(|body| {
[INFO] [stdout] ...   |
[INFO] [stdout] 184 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Async<tower_grpc::codegen::server::http::Response<ResponseBody<T>>>, Never>
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:170:47
[INFO] [stdout]     |
[INFO] [stdout] 170 |                       Subscribe(ref mut fut) => {
[INFO] [stdout]     |  _______________________________________________^
[INFO] [stdout] 171 | |                         let response = try_ready!(fut.poll());
[INFO] [stdout] 172 | |                         let response = response.map(|body| {
[INFO] [stdout] 173 | |                             ResponseBody { kind: Subscribe(body) }
[INFO] [stdout] 174 | |                         });
[INFO] [stdout] 175 | |                         Ok(response.into())
[INFO] [stdout] 176 | |                     }
[INFO] [stdout]     | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Async<tower_grpc::codegen::server::http::Response<tower_grpc::Encode<<T as spring::server::Subscriber>::SubscribeStream>>>, Never>
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:171:51
[INFO] [stdout]     |
[INFO] [stdout] 171 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Async<tower_grpc::codegen::server::http::Response<ResponseBody<T>>>, Never>
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:59:52
[INFO] [stdout]     |
[INFO] [stdout]  59 |             Ok(futures::Async::NotReady) => return Ok(futures::Async::NotReady),
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 171 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                        ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `try_ready` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Async<tower_grpc::codegen::server::http::Response<ResponseBody<T>>>, Never>
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:60:30
[INFO] [stdout]     |
[INFO] [stdout]  60 |             Err(e) => return Err(From::from(e)),
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 171 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                        ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `try_ready` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Async<tower_grpc::codegen::server::http::Response<ResponseBody<T>>>, Never>
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:175:25
[INFO] [stdout]     |
[INFO] [stdout] 175 |                         Ok(response.into())
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Async<tower_grpc::codegen::server::http::Response<ResponseBody<T>>>, Never>
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:177:64
[INFO] [stdout]     |
[INFO] [stdout] 177 |                       __Generated__Unimplemented(ref mut fut) => {
[INFO] [stdout]     |  ________________________________________________________________^
[INFO] [stdout] 178 | |                         let response = try_ready!(fut.poll());
[INFO] [stdout] 179 | |                         let response = response.map(|body| {
[INFO] [stdout] 180 | |                             ResponseBody { kind: __Generated__Unimplemented(body) }
[INFO] [stdout] 181 | |                         });
[INFO] [stdout] 182 | |                         Ok(response.into())
[INFO] [stdout] 183 | |                     }
[INFO] [stdout]     | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Async<tower_grpc::codegen::server::http::Response<()>>, Never>
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:178:51
[INFO] [stdout]     |
[INFO] [stdout] 178 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Async<tower_grpc::codegen::server::http::Response<ResponseBody<T>>>, Never>
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:59:52
[INFO] [stdout]     |
[INFO] [stdout]  59 |             Ok(futures::Async::NotReady) => return Ok(futures::Async::NotReady),
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 178 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                        ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `try_ready` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Async<tower_grpc::codegen::server::http::Response<ResponseBody<T>>>, Never>
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:60:30
[INFO] [stdout]     |
[INFO] [stdout]  60 |             Err(e) => return Err(From::from(e)),
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 178 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                        ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `try_ready` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Async<tower_grpc::codegen::server::http::Response<ResponseBody<T>>>, Never>
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:182:25
[INFO] [stdout]     |
[INFO] [stdout] 182 |                         Ok(response.into())
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Async<()>, Never>
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:91:68
[INFO] [stdout]    |
[INFO] [stdout] 91 |           fn poll_ready(&mut self) -> futures::Poll<(), Self::Error> {
[INFO] [stdout]    |  ____________________________________________________________________^
[INFO] [stdout] 92 | |             Ok(().into())
[INFO] [stdout] 93 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Async<()>, Never>
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:92:13
[INFO] [stdout]    |
[INFO] [stdout] 92 |             Ok(().into())
[INFO] [stdout]    |             ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Async<()>, Never>
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:118:68
[INFO] [stdout]     |
[INFO] [stdout] 118 |           fn poll_ready(&mut self) -> futures::Poll<(), Self::Error> {
[INFO] [stdout]     |  ____________________________________________________________________^
[INFO] [stdout] 119 | |             Ok(futures::Async::Ready(()))
[INFO] [stdout] 120 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Async<()>, Never>
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:119:13
[INFO] [stdout]     |
[INFO] [stdout] 119 |             Ok(futures::Async::Ready(()))
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Async<()>, Never>
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:134:68
[INFO] [stdout]     |
[INFO] [stdout] 134 |           fn poll_ready(&mut self) -> futures::Poll<(), Self::Error> {
[INFO] [stdout]     |  ____________________________________________________________________^
[INFO] [stdout] 135 | |             tower::Service::<http::Request<grpc::BoxBody>>::poll_ready(self)
[INFO] [stdout] 136 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Async<()>, Never>
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:135:13
[INFO] [stdout]     |
[INFO] [stdout] 135 |             tower::Service::<http::Request<grpc::BoxBody>>::poll_ready(self)
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Async<tower_grpc::codegen::server::http::Response<ResponseBody<T>>>, Never>
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:166:74
[INFO] [stdout]     |
[INFO] [stdout] 166 |               fn poll(&mut self) -> futures::Poll<Self::Item, Self::Error> {
[INFO] [stdout]     |  __________________________________________________________________________^
[INFO] [stdout] 167 | |                 use self::Kind::*;
[INFO] [stdout] 168 | |
[INFO] [stdout] 169 | |                 match self.kind {
[INFO] [stdout] ...   |
[INFO] [stdout] 185 | |             }
[INFO] [stdout]     | |_____________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Async<tower_grpc::codegen::server::http::Response<ResponseBody<T>>>, Never>
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:169:17
[INFO] [stdout]     |
[INFO] [stdout] 169 | /                 match self.kind {
[INFO] [stdout] 170 | |                     Subscribe(ref mut fut) => {
[INFO] [stdout] 171 | |                         let response = try_ready!(fut.poll());
[INFO] [stdout] 172 | |                         let response = response.map(|body| {
[INFO] [stdout] ...   |
[INFO] [stdout] 184 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Async<tower_grpc::codegen::server::http::Response<ResponseBody<T>>>, Never>
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:170:47
[INFO] [stdout]     |
[INFO] [stdout] 170 |                       Subscribe(ref mut fut) => {
[INFO] [stdout]     |  _______________________________________________^
[INFO] [stdout] 171 | |                         let response = try_ready!(fut.poll());
[INFO] [stdout] 172 | |                         let response = response.map(|body| {
[INFO] [stdout] 173 | |                             ResponseBody { kind: Subscribe(body) }
[INFO] [stdout] 174 | |                         });
[INFO] [stdout] 175 | |                         Ok(response.into())
[INFO] [stdout] 176 | |                     }
[INFO] [stdout]     | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Async<tower_grpc::codegen::server::http::Response<tower_grpc::Encode<<T as spring::server::Subscriber>::SubscribeStream>>>, Never>
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:171:51
[INFO] [stdout]     |
[INFO] [stdout] 171 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Async<tower_grpc::codegen::server::http::Response<ResponseBody<T>>>, Never>
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:59:52
[INFO] [stdout]     |
[INFO] [stdout]  59 |             Ok(futures::Async::NotReady) => return Ok(futures::Async::NotReady),
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 171 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                        ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `try_ready` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Async<tower_grpc::codegen::server::http::Response<ResponseBody<T>>>, Never>
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:60:30
[INFO] [stdout]     |
[INFO] [stdout]  60 |             Err(e) => return Err(From::from(e)),
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 171 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                        ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `try_ready` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Async<tower_grpc::codegen::server::http::Response<ResponseBody<T>>>, Never>
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:175:25
[INFO] [stdout]     |
[INFO] [stdout] 175 |                         Ok(response.into())
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Async<tower_grpc::codegen::server::http::Response<ResponseBody<T>>>, Never>
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:177:64
[INFO] [stdout]     |
[INFO] [stdout] 177 |                       __Generated__Unimplemented(ref mut fut) => {
[INFO] [stdout]     |  ________________________________________________________________^
[INFO] [stdout] 178 | |                         let response = try_ready!(fut.poll());
[INFO] [stdout] 179 | |                         let response = response.map(|body| {
[INFO] [stdout] 180 | |                             ResponseBody { kind: __Generated__Unimplemented(body) }
[INFO] [stdout] 181 | |                         });
[INFO] [stdout] 182 | |                         Ok(response.into())
[INFO] [stdout] 183 | |                     }
[INFO] [stdout]     | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Async<tower_grpc::codegen::server::http::Response<()>>, Never>
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:178:51
[INFO] [stdout]     |
[INFO] [stdout] 178 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Async<tower_grpc::codegen::server::http::Response<ResponseBody<T>>>, Never>
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:59:52
[INFO] [stdout]     |
[INFO] [stdout]  59 |             Ok(futures::Async::NotReady) => return Ok(futures::Async::NotReady),
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 178 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                        ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `try_ready` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Async<tower_grpc::codegen::server::http::Response<ResponseBody<T>>>, Never>
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:60:30
[INFO] [stdout]     |
[INFO] [stdout]  60 |             Err(e) => return Err(From::from(e)),
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 178 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                        ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `try_ready` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Async<tower_grpc::codegen::server::http::Response<ResponseBody<T>>>, Never>
[INFO] [stdout]    --> /opt/rustwide/target/debug/build/bitcoin-spring-b5ebcba2c99e2cf0/out/spring.rs:182:25
[INFO] [stdout]     |
[INFO] [stdout] 182 |                         Ok(response.into())
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bitcoin-spring` (bin "bitcoin-spring" test) due to 18 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `bitcoin-spring` (bin "bitcoin-spring") due to 18 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "73d5c53ae31d4f575ab1b61906ec67d77585c30192e474d13ec944ed5958dcc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73d5c53ae31d4f575ab1b61906ec67d77585c30192e474d13ec944ed5958dcc0", kill_on_drop: false }`
[INFO] [stdout] 73d5c53ae31d4f575ab1b61906ec67d77585c30192e474d13ec944ed5958dcc0
