[INFO] updating cached repository agend/tower-grpc-bench
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/agend/tower-grpc-bench
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/agend/tower-grpc-bench" "work/ex/beta-1.38-1/sources/1.37.0/gh/agend/tower-grpc-bench"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/agend/tower-grpc-bench'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/agend/tower-grpc-bench" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/agend/tower-grpc-bench"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/agend/tower-grpc-bench'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e5aaeacca4aec947b0a3493836b2316b7b28c2c5
[INFO] sha for GitHub repo agend/tower-grpc-bench: e5aaeacca4aec947b0a3493836b2316b7b28c2c5
[INFO] validating manifest of agend/tower-grpc-bench on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of agend/tower-grpc-bench on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing agend/tower-grpc-bench
[INFO] finished frobbing agend/tower-grpc-bench
[INFO] frobbed toml for agend/tower-grpc-bench written to work/ex/beta-1.38-1/sources/1.37.0/gh/agend/tower-grpc-bench/Cargo.toml
[INFO] started frobbing agend/tower-grpc-bench
[INFO] finished frobbing agend/tower-grpc-bench
[INFO] frobbed toml for agend/tower-grpc-bench written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/agend/tower-grpc-bench/Cargo.toml
[INFO] crate agend/tower-grpc-bench already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing agend/tower-grpc-bench against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/agend/tower-grpc-bench:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 905d5c7edae49e00ce2783576c57b5c7bbfc36e7961403af323868636c685afb
[INFO] running `"docker" "start" "-a" "905d5c7edae49e00ce2783576c57b5c7bbfc36e7961403af323868636c685afb"`
[INFO] [stderr]    Compiling cc v1.0.32
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]    Compiling either v1.5.1
[INFO] [stderr]    Compiling multimap v0.4.0
[INFO] [stderr]    Compiling tower-service v0.2.0
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling codegen v0.1.1 (https://github.com/carllerche/codegen#87e270f7)
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling tower-layer v0.1.0 (https://github.com/tower-rs/tower#d7516c32)
[INFO] [stderr]    Compiling tower-discover v0.1.0 (https://github.com/tower-rs/tower#d7516c32)
[INFO] [stderr]    Compiling itertools v0.8.0
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling tower-retry 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)
[INFO] [stderr]    Compiling tower-rate-limit 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 tower-in-flight-limit 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-buffer v0.1.0 (https://github.com/tower-rs/tower#d7516c32)
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling tokio-threadpool v0.1.13
[INFO] [stderr]    Compiling tokio-io v0.1.12
[INFO] [stderr]    Compiling tokio-buf v0.1.0
[INFO] [stderr]    Compiling http v0.1.16
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling tower-util 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 tokio-codec v0.1.1
[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 backtrace-sys v0.1.28
[INFO] [stderr]    Compiling tokio-reactor v0.1.9
[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-fs v0.1.6
[INFO] [stderr]    Compiling tokio-uds v0.2.5
[INFO] [stderr]    Compiling tokio-udp v0.1.3
[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling backtrace v0.3.14
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling tokio v0.1.18
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling stopwatch v0.0.7
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]    Compiling prost-build v0.5.0
[INFO] [stderr]    Compiling tower-http-service v0.1.0 (https://github.com/tower-rs/tower-http#6d7a9fdc)
[INFO] [stderr]    Compiling h2 v0.1.17
[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/crater/workdir)
[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]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=TcpStream, Error=::std::io::Error> + Send`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[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: consider prefixing with an underscore: `_request`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 33s
[INFO] running `"docker" "inspect" "905d5c7edae49e00ce2783576c57b5c7bbfc36e7961403af323868636c685afb"`
[INFO] running `"docker" "rm" "-f" "905d5c7edae49e00ce2783576c57b5c7bbfc36e7961403af323868636c685afb"`
[INFO] [stdout] 905d5c7edae49e00ce2783576c57b5c7bbfc36e7961403af323868636c685afb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/agend/tower-grpc-bench:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9b783960e4ab0cc9eedc9429e4d722ab9880df04d0e894ae9b70d155b19f3778
[INFO] running `"docker" "start" "-a" "9b783960e4ab0cc9eedc9429e4d722ab9880df04d0e894ae9b70d155b19f3778"`
[INFO] [stderr]    Compiling tower-grpc-bench v0.1.0 (/opt/crater/workdir)
[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: consider prefixing 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]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=TcpStream, Error=::std::io::Error> + Send`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.82s
[INFO] running `"docker" "inspect" "9b783960e4ab0cc9eedc9429e4d722ab9880df04d0e894ae9b70d155b19f3778"`
[INFO] running `"docker" "rm" "-f" "9b783960e4ab0cc9eedc9429e4d722ab9880df04d0e894ae9b70d155b19f3778"`
[INFO] [stdout] 9b783960e4ab0cc9eedc9429e4d722ab9880df04d0e894ae9b70d155b19f3778
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/agend/tower-grpc-bench:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 9f454e240bf7cc4ce4016f2b609019900570229e0de2bf683452b6d8bb085c92
[INFO] running `"docker" "start" "-a" "9f454e240bf7cc4ce4016f2b609019900570229e0de2bf683452b6d8bb085c92"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/client-b1741758f55d2bf8
[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
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/server-c2e3eeed187cb4fc
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "9f454e240bf7cc4ce4016f2b609019900570229e0de2bf683452b6d8bb085c92"`
[INFO] running `"docker" "rm" "-f" "9f454e240bf7cc4ce4016f2b609019900570229e0de2bf683452b6d8bb085c92"`
[INFO] [stdout] 9f454e240bf7cc4ce4016f2b609019900570229e0de2bf683452b6d8bb085c92