[INFO] cloning repository https://github.com/agend/tower-grpc-bench
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/agend/tower-grpc-bench" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fagend%2Ftower-grpc-bench", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fagend%2Ftower-grpc-bench'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e5aaeacca4aec947b0a3493836b2316b7b28c2c5
[INFO] testing agend/tower-grpc-bench against 1.75.0 for beta-1.76-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fagend%2Ftower-grpc-bench" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/agend/tower-grpc-bench on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/agend/tower-grpc-bench
[INFO] finished tweaking git repo https://github.com/agend/tower-grpc-bench
[INFO] tweaked toml for git repo https://github.com/agend/tower-grpc-bench written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/agend/tower-grpc-bench 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Updating git repository `https://github.com/tower-rs/tower-http`
[INFO] [stderr]     Updating git repository `https://github.com/tower-rs/tower-grpc`
[INFO] [stderr]     Updating git repository `https://github.com/tower-rs/tower-h2`
[INFO] [stderr]     Updating git repository `https://github.com/tower-rs/tower`
[INFO] [stderr]     Updating git repository `https://github.com/carllerche/tokio-connect`
[INFO] [stderr]     Updating git repository `https://github.com/carllerche/codegen`
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c2467b069f4540d2037a356c2ecb15e9a838d1e02e3ff9078a81bdca68b14365
[INFO] running `Command { std: "docker" "start" "-a" "c2467b069f4540d2037a356c2ecb15e9a838d1e02e3ff9078a81bdca68b14365", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2467b069f4540d2037a356c2ecb15e9a838d1e02e3ff9078a81bdca68b14365", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2467b069f4540d2037a356c2ecb15e9a838d1e02e3ff9078a81bdca68b14365", kill_on_drop: false }`
[INFO] [stdout] c2467b069f4540d2037a356c2ecb15e9a838d1e02e3ff9078a81bdca68b14365
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 516e1a9bf5abd62cbc6bea72244d6c9902aaf39960c6af4776583342bcaa5b5d
[INFO] running `Command { std: "docker" "start" "-a" "516e1a9bf5abd62cbc6bea72244d6c9902aaf39960c6af4776583342bcaa5b5d", kill_on_drop: false }`
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[INFO] [stderr]    Compiling tokio-io v0.1.12
[INFO] [stderr]    Compiling tower-layer v0.1.0 (https://github.com/tower-rs/tower#d7516c32)
[INFO] [stderr]    Compiling tokio-sync v0.1.4
[INFO] [stderr]    Compiling tokio-timer v0.2.10
[INFO] [stderr]    Compiling tower-discover v0.1.0 (https://github.com/tower-rs/tower#d7516c32)
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[INFO] [stderr]    Compiling tower-load-shed v0.1.0 (https://github.com/tower-rs/tower#d7516c32)
[INFO] [stderr]    Compiling tower-filter v0.1.0 (https://github.com/tower-rs/tower#d7516c32)
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[INFO] [stderr]    Compiling tower-util v0.1.0 (https://github.com/tower-rs/tower#d7516c32)
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[INFO] [stderr]    Compiling tower-reconnect v0.1.0 (https://github.com/tower-rs/tower#d7516c32)
[INFO] [stderr]    Compiling tower-balance v0.1.0 (https://github.com/tower-rs/tower#d7516c32)
[INFO] [stderr]    Compiling tower-timeout v0.1.0 (https://github.com/tower-rs/tower#d7516c32)
[INFO] [stderr]    Compiling tower-retry v0.1.0 (https://github.com/tower-rs/tower#d7516c32)
[INFO] [stderr]    Compiling tower-rate-limit v0.1.0 (https://github.com/tower-rs/tower#d7516c32)
[INFO] [stderr]    Compiling tower-buffer v0.1.0 (https://github.com/tower-rs/tower#d7516c32)
[INFO] [stderr]    Compiling tower-in-flight-limit v0.1.0 (https://github.com/tower-rs/tower#d7516c32)
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling tokio-threadpool v0.1.13
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling tower v0.1.0 (https://github.com/tower-rs/tower#d7516c32)
[INFO] [stderr]    Compiling tokio-connect v0.1.0 (https://github.com/carllerche/tokio-connect#f7ad1ca4)
[INFO] [stderr]    Compiling percent-encoding v1.0.1
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[INFO] [stderr]    Compiling tokio-reactor v0.1.9
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[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling tokio-uds v0.2.5
[INFO] [stderr]    Compiling tokio-udp v0.1.3
[INFO] [stderr]    Compiling tokio-fs v0.1.6
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling stopwatch v0.0.7
[INFO] [stderr]    Compiling tokio v0.1.18
[INFO] [stderr]    Compiling prost-build v0.5.0
[INFO] [stderr]    Compiling h2 v0.1.17
[INFO] [stderr]    Compiling tower-http-service v0.1.0 (https://github.com/tower-rs/tower-http#6d7a9fdc)
[INFO] [stderr]    Compiling tower-add-origin v0.1.0 (https://github.com/tower-rs/tower-http#6d7a9fdc)
[INFO] [stderr]    Compiling prost-derive v0.5.0
[INFO] [stderr]    Compiling tower-h2 v0.1.0 (https://github.com/tower-rs/tower-h2#ac7ea5bd)
[INFO] [stderr]    Compiling prost v0.5.0
[INFO] [stderr]    Compiling prost-types v0.5.0
[INFO] [stderr]    Compiling tower-grpc v0.1.0 (https://github.com/tower-rs/tower-grpc#979567f3)
[INFO] [stderr]    Compiling tower-grpc-build v0.1.0 (https://github.com/tower-rs/tower-grpc#979567f3)
[INFO] [stderr]    Compiling tower-grpc-bench v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `FutureResult`
[INFO] [stdout]   --> src/helloworld/client.rs:14:38
[INFO] [stdout]    |
[INFO] [stdout] 14 | use futures::future::{loop_fn, Loop, FutureResult};
[INFO] [stdout]    |                                      ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Async`
[INFO] [stdout]   --> src/helloworld/client.rs:16:29
[INFO] [stdout]    |
[INFO] [stdout] 16 | use futures::{Future, Poll, Async};
[INFO] [stdout]    |                             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::executor::DefaultExecutor`
[INFO] [stdout]   --> src/helloworld/client.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use tokio::executor::DefaultExecutor;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ConnectFuture`
[INFO] [stdout]   --> src/helloworld/client.rs:18:23
[INFO] [stdout]    |
[INFO] [stdout] 18 | use tokio::net::tcp::{ConnectFuture, TcpStream};
[INFO] [stdout]    |                       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/helloworld/client.rs:70:23
[INFO] [stdout]    |
[INFO] [stdout] 70 |     type Future = Box<Future<Item=TcpStream, Error=::std::io::Error> + Send>;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 70 |     type Future = Box<dyn Future<Item=TcpStream, Error=::std::io::Error> + Send>;
[INFO] [stdout]    |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `request`
[INFO] [stdout]   --> src/helloworld/server.rs:29:29
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn say_hello(&mut self, request: Request<HelloRequest>) -> Self::SayHelloFuture {
[INFO] [stdout]    |                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_request`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.88s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "516e1a9bf5abd62cbc6bea72244d6c9902aaf39960c6af4776583342bcaa5b5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "516e1a9bf5abd62cbc6bea72244d6c9902aaf39960c6af4776583342bcaa5b5d", kill_on_drop: false }`
[INFO] [stdout] 516e1a9bf5abd62cbc6bea72244d6c9902aaf39960c6af4776583342bcaa5b5d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3ca146d7422b1f92c71918104ed79f4464e6357b4ac159e1abfa9f44257376e
[INFO] running `Command { std: "docker" "start" "-a" "d3ca146d7422b1f92c71918104ed79f4464e6357b4ac159e1abfa9f44257376e", kill_on_drop: false }`
[INFO] [stderr]    Compiling tower-grpc-bench v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `FutureResult`
[INFO] [stdout]   --> src/helloworld/client.rs:14:38
[INFO] [stdout]    |
[INFO] [stdout] 14 | use futures::future::{loop_fn, Loop, FutureResult};
[INFO] [stdout]    |                                      ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Async`
[INFO] [stdout]   --> src/helloworld/client.rs:16:29
[INFO] [stdout]    |
[INFO] [stdout] 16 | use futures::{Future, Poll, Async};
[INFO] [stdout]    |                             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::executor::DefaultExecutor`
[INFO] [stdout]   --> src/helloworld/client.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use tokio::executor::DefaultExecutor;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ConnectFuture`
[INFO] [stdout]   --> src/helloworld/client.rs:18:23
[INFO] [stdout]    |
[INFO] [stdout] 18 | use tokio::net::tcp::{ConnectFuture, TcpStream};
[INFO] [stdout]    |                       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/helloworld/client.rs:70:23
[INFO] [stdout]    |
[INFO] [stdout] 70 |     type Future = Box<Future<Item=TcpStream, Error=::std::io::Error> + Send>;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 70 |     type Future = Box<dyn Future<Item=TcpStream, Error=::std::io::Error> + Send>;
[INFO] [stdout]    |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `request`
[INFO] [stdout]   --> src/helloworld/server.rs:29:29
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn say_hello(&mut self, request: Request<HelloRequest>) -> Self::SayHelloFuture {
[INFO] [stdout]    |                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_request`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.39s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "d3ca146d7422b1f92c71918104ed79f4464e6357b4ac159e1abfa9f44257376e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3ca146d7422b1f92c71918104ed79f4464e6357b4ac159e1abfa9f44257376e", kill_on_drop: false }`
[INFO] [stdout] d3ca146d7422b1f92c71918104ed79f4464e6357b4ac159e1abfa9f44257376e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a7bf6e52e9225b22b32fd608bdb90f5cebac895474bf69d0120b76a6f6191fb5
[INFO] running `Command { std: "docker" "start" "-a" "a7bf6e52e9225b22b32fd608bdb90f5cebac895474bf69d0120b76a6f6191fb5", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `request`
[INFO] [stderr]   --> src/helloworld/server.rs:29:29
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn say_hello(&mut self, request: Request<HelloRequest>) -> Self::SayHelloFuture {
[INFO] [stderr]    |                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_request`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `FutureResult`
[INFO] [stderr]   --> src/helloworld/client.rs:14:38
[INFO] [stderr]    |
[INFO] [stderr] 14 | use futures::future::{loop_fn, Loop, FutureResult};
[INFO] [stderr]    |                                      ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Async`
[INFO] [stderr]   --> src/helloworld/client.rs:16:29
[INFO] [stderr]    |
[INFO] [stderr] 16 | use futures::{Future, Poll, Async};
[INFO] [stderr]    |                             ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tokio::executor::DefaultExecutor`
[INFO] [stderr]   --> src/helloworld/client.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use tokio::executor::DefaultExecutor;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ConnectFuture`
[INFO] [stderr]   --> src/helloworld/client.rs:18:23
[INFO] [stderr]    |
[INFO] [stderr] 18 | use tokio::net::tcp::{ConnectFuture, TcpStream};
[INFO] [stderr]    |                       ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/helloworld/client.rs:70:23
[INFO] [stderr]    |
[INFO] [stderr] 70 |     type Future = Box<Future<Item=TcpStream, Error=::std::io::Error> + Send>;
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) 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]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 70 |     type Future = Box<dyn Future<Item=TcpStream, Error=::std::io::Error> + Send>;
[INFO] [stderr]    |                       +++
[INFO] [stderr] 
[INFO] [stderr] warning: `tower-grpc-bench` (bin "server" test) generated 1 warning (run `cargo fix --bin "server" --tests` to apply 1 suggestion)
[INFO] [stderr] warning: `tower-grpc-bench` (bin "client" test) generated 5 warnings (run `cargo fix --bin "client" --tests` to apply 5 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] [stderr]      Running unittests src/helloworld/client.rs (/opt/rustwide/target/debug/deps/client-566bcd14e2855da8)
[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] [stderr]      Running unittests src/helloworld/server.rs (/opt/rustwide/target/debug/deps/server-2ddb16316ee9b4ea)
[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" "a7bf6e52e9225b22b32fd608bdb90f5cebac895474bf69d0120b76a6f6191fb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7bf6e52e9225b22b32fd608bdb90f5cebac895474bf69d0120b76a6f6191fb5", kill_on_drop: false }`
[INFO] [stdout] a7bf6e52e9225b22b32fd608bdb90f5cebac895474bf69d0120b76a6f6191fb5
[INFO] testing agend/tower-grpc-bench against beta-2023-12-22 for beta-1.76-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fagend%2Ftower-grpc-bench" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/agend/tower-grpc-bench on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/agend/tower-grpc-bench
[INFO] finished tweaking git repo https://github.com/agend/tower-grpc-bench
[INFO] tweaked toml for git repo https://github.com/agend/tower-grpc-bench written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/agend/tower-grpc-bench 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" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 18294eca6b9ac1dfc9a54546cd63b328a19e5f79741e67a9b9075351bb991c9a
[INFO] running `Command { std: "docker" "start" "-a" "18294eca6b9ac1dfc9a54546cd63b328a19e5f79741e67a9b9075351bb991c9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18294eca6b9ac1dfc9a54546cd63b328a19e5f79741e67a9b9075351bb991c9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18294eca6b9ac1dfc9a54546cd63b328a19e5f79741e67a9b9075351bb991c9a", kill_on_drop: false }`
[INFO] [stdout] 18294eca6b9ac1dfc9a54546cd63b328a19e5f79741e67a9b9075351bb991c9a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd3cd41cf52b940c3545a2c753b5ad36da9069b1338e29da9d9f6f826c0aa660
[INFO] running `Command { std: "docker" "start" "-a" "bd3cd41cf52b940c3545a2c753b5ad36da9069b1338e29da9d9f6f826c0aa660", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]    Compiling cfg-if v0.1.7
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling futures v0.1.26
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling either v1.5.1
[INFO] [stderr]    Compiling rand_core v0.4.0
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling cc v1.0.32
[INFO] [stderr]    Compiling rustc-demangle v0.1.13
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling indexmap v1.0.2
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling crossbeam-utils v0.6.5
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling itertools v0.8.0
[INFO] [stderr]    Compiling owning_ref v0.4.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_jitter v0.1.3
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling backtrace v0.3.14
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling smallvec v0.6.9
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling lock_api v0.1.5
[INFO] [stderr]    Compiling itoa v0.4.3
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling memoffset v0.2.1
[INFO] [stderr]    Compiling remove_dir_all v0.5.1
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling multimap v0.4.0
[INFO] [stderr]    Compiling codegen v0.1.1 (https://github.com/carllerche/codegen#87e270f7)
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling string v0.1.3
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]    Compiling num_cpus v1.10.0
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stdout] error[E0310]: the parameter type `T` may not live long enough
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/rustc-serialize-0.3.24/src/serialize.rs:1155:5
[INFO] [stdout]      |
[INFO] [stdout] 1155 |     fn decode<D: Decoder>(d: &mut D) -> Result<Cow<'static, T>, D::Error> {
[INFO] [stdout]      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |     |
[INFO] [stdout]      |     the parameter type `T` must be valid for the static lifetime...
[INFO] [stdout]      |     ...so that the type `T` will meet its required lifetime bounds...
[INFO] [stdout]      |
[INFO] [stdout] note: ...that is required by this bound
[INFO] [stdout]     --> /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/borrow.rs:180:30
[INFO] [stdout] help: consider adding an explicit lifetime bound
[INFO] [stdout]      |
[INFO] [stdout] 1151 | impl<'a, T: ?Sized + 'static> Decodable for Cow<'a, T>
[INFO] [stdout]      |                    +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.1
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling humantime v1.2.0
[INFO] [stderr]    Compiling tokio-executor v0.1.7
[INFO] [stderr]    Compiling tower-service v0.2.0
[INFO] [stderr]    Compiling tokio-io v0.1.12
[INFO] [stderr]    Compiling tower-layer v0.1.0 (https://github.com/tower-rs/tower#d7516c32)
[INFO] [stderr]    Compiling tokio-sync v0.1.4
[INFO] [stderr]    Compiling tokio-timer v0.2.10
[INFO] [stderr]    Compiling http v0.1.16
[INFO] [stderr]    Compiling tower-discover v0.1.0 (https://github.com/tower-rs/tower#d7516c32)
[INFO] [stderr]    Compiling crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling tower-filter v0.1.0 (https://github.com/tower-rs/tower#d7516c32)
[INFO] [stderr]    Compiling tower-load-shed v0.1.0 (https://github.com/tower-rs/tower#d7516c32)
[INFO] [stderr]    Compiling tokio-buf v0.1.0
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0310`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling tower-util v0.1.0 (https://github.com/tower-rs/tower#d7516c32)
[INFO] [stderr] error: could not compile `rustc-serialize` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "bd3cd41cf52b940c3545a2c753b5ad36da9069b1338e29da9d9f6f826c0aa660", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd3cd41cf52b940c3545a2c753b5ad36da9069b1338e29da9d9f6f826c0aa660", kill_on_drop: false }`
[INFO] [stdout] bd3cd41cf52b940c3545a2c753b5ad36da9069b1338e29da9d9f6f826c0aa660
