[INFO] cloning repository https://github.com/hicqu/tower-grpc-learn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hicqu/tower-grpc-learn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhicqu%2Ftower-grpc-learn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhicqu%2Ftower-grpc-learn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 56130161e362d33ed9c66cad873a3260ead2a3f9
[INFO] checking hicqu/tower-grpc-learn against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhicqu%2Ftower-grpc-learn" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/hicqu/tower-grpc-learn
[INFO] finished tweaking git repo https://github.com/hicqu/tower-grpc-learn
[INFO] tweaked toml for git repo https://github.com/hicqu/tower-grpc-learn written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/hicqu/tower-grpc-learn on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/hicqu/tower-grpc-learn 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f18ac06a9f401cc38f984ab0ffb66007923dde7093b7233a1e7a423b04470c4f
[INFO] running `Command { std: "docker" "start" "-a" "f18ac06a9f401cc38f984ab0ffb66007923dde7093b7233a1e7a423b04470c4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f18ac06a9f401cc38f984ab0ffb66007923dde7093b7233a1e7a423b04470c4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f18ac06a9f401cc38f984ab0ffb66007923dde7093b7233a1e7a423b04470c4f", kill_on_drop: false }`
[INFO] [stdout] f18ac06a9f401cc38f984ab0ffb66007923dde7093b7233a1e7a423b04470c4f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a199e985874b13e8d64986a13dd692eca49cfa2a10e405b047f8c822803f6c78
[INFO] running `Command { std: "docker" "start" "-a" "a199e985874b13e8d64986a13dd692eca49cfa2a10e405b047f8c822803f6c78", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.55
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]     Checking futures v0.1.27
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]     Checking either v1.5.2
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]    Compiling backtrace v0.3.18
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling rustc-demangle v0.1.14
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking num_cpus v1.10.0
[INFO] [stderr]     Checking owning_ref v0.4.0
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking smallvec v0.6.9
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]     Checking mio v0.6.17
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking tokio-executor v0.1.7
[INFO] [stderr]     Checking tokio-sync v0.1.5
[INFO] [stderr]     Checking http v0.1.17
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking tower-service v0.2.0
[INFO] [stderr]    Compiling itertools v0.8.0
[INFO] [stderr]     Checking indexmap v1.0.2
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]    Compiling httparse v1.3.3
[INFO] [stderr]     Checking tokio-threadpool v0.1.14
[INFO] [stderr]     Checking string v0.1.3
[INFO] [stderr]     Checking tower-layer v0.1.0
[INFO] [stderr]     Checking tokio-timer v0.2.11
[INFO] [stderr]     Checking tokio-current-thread v0.1.6
[INFO] [stderr]     Checking tokio-trace-core v0.1.0
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stderr]     Checking remove_dir_all v0.5.1
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]    Compiling regex v1.1.6
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]     Checking unicode-segmentation v1.3.0
[INFO] [stderr]     Checking try-lock v0.2.2
[INFO] [stderr]     Checking regex-syntax v0.6.6
[INFO] [stderr]     Checking want v0.0.6
[INFO] [stderr]    Compiling prost-build v0.5.0
[INFO] [stderr]     Checking heck v0.3.1
[INFO] [stderr]     Checking petgraph v0.4.13
[INFO] [stderr]     Checking tempfile v3.0.8
[INFO] [stderr]     Checking aho-corasick v0.7.3
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio-udp v0.1.3
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking tower-util v0.1.0
[INFO] [stderr]     Checking tokio v0.1.20
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking multimap v0.4.0
[INFO] [stderr]     Checking humantime v1.2.0
[INFO] [stderr]     Checking codegen v0.1.1
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]     Checking h2 v0.1.20
[INFO] [stderr]     Checking http-connection v0.1.0 (https://github.com/hyperium/http-connection#351d472c)
[INFO] [stderr]     Checking termcolor v1.0.4
[INFO] [stderr]     Checking tower-http-util v0.1.0 (https://github.com/tower-rs/tower-http#044e0ed5)
[INFO] [stderr]     Checking tower-request-modifier v0.1.0 (https://github.com/tower-rs/tower-http#044e0ed5)
[INFO] [stderr]    Compiling prost-derive v0.5.0
[INFO] [stderr]     Checking hyper v0.12.29
[INFO] [stderr]     Checking env_logger v0.6.1
[INFO] [stderr]     Checking prost v0.5.0
[INFO] [stderr]     Checking prost-types v0.5.0
[INFO] [stderr]     Checking tower-grpc v0.1.1 (https://github.com/tower-rs/tower-grpc#5308ec0d)
[INFO] [stderr]     Checking tower-hyper v0.1.0 (https://github.com/tower-rs/tower-hyper#2eea4b53)
[INFO] [stderr]     Checking tower-grpc-build v0.1.0 (https://github.com/tower-rs/tower-grpc#5308ec0d)
[INFO] [stderr]     Checking tower-grpc-learn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/helloworld.rs:86:30
[INFO] [stdout]     |
[INFO] [stdout]  86 |             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] 228 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                        ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `tower_grpc::codegen::server::grpc::Never`, which is uninhabited
[INFO] [stdout]    --> src/helloworld.rs:86:34
[INFO] [stdout]     |
[INFO] [stdout]  86 |             Err(e) => return Err(From::from(e)),
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 228 |                         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]    --> src/helloworld.rs:86:30
[INFO] [stdout]     |
[INFO] [stdout]  86 |             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] 235 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                        ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `tower_grpc::codegen::server::grpc::Never`, which is uninhabited
[INFO] [stdout]    --> src/helloworld.rs:86:34
[INFO] [stdout]     |
[INFO] [stdout]  86 |             Err(e) => return Err(From::from(e)),
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 235 |                         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]    --> src/helloworld.rs:86:30
[INFO] [stdout]     |
[INFO] [stdout]  86 |             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] 242 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                        ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `tower_grpc::codegen::server::grpc::Never`, which is uninhabited
[INFO] [stdout]    --> src/helloworld.rs:86:34
[INFO] [stdout]     |
[INFO] [stdout]  86 |             Err(e) => return Err(From::from(e)),
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 |                         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]    --> src/helloworld.rs:86:30
[INFO] [stdout]     |
[INFO] [stdout]  86 |             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] 249 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                        ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `tower_grpc::codegen::server::grpc::Never`, which is uninhabited
[INFO] [stdout]    --> src/helloworld.rs:86:34
[INFO] [stdout]     |
[INFO] [stdout]  86 |             Err(e) => return Err(From::from(e)),
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 249 |                         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]    --> src/helloworld.rs:86:30
[INFO] [stdout]     |
[INFO] [stdout]  86 |             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] 256 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                        ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `tower_grpc::codegen::server::grpc::Never`, which is uninhabited
[INFO] [stdout]    --> src/helloworld.rs:86:34
[INFO] [stdout]     |
[INFO] [stdout]  86 |             Err(e) => return Err(From::from(e)),
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 256 |                         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]    --> src/helloworld.rs:86:30
[INFO] [stdout]     |
[INFO] [stdout]  86 |             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] 228 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                        ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `tower_grpc::codegen::server::grpc::Never`, which is uninhabited
[INFO] [stdout]    --> src/helloworld.rs:86:34
[INFO] [stdout]     |
[INFO] [stdout]  86 |             Err(e) => return Err(From::from(e)),
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 228 |                         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]    --> src/helloworld.rs:86:30
[INFO] [stdout]     |
[INFO] [stdout]  86 |             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] 235 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                        ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `tower_grpc::codegen::server::grpc::Never`, which is uninhabited
[INFO] [stdout]    --> src/helloworld.rs:86:34
[INFO] [stdout]     |
[INFO] [stdout]  86 |             Err(e) => return Err(From::from(e)),
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 235 |                         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]    --> src/helloworld.rs:86:30
[INFO] [stdout]     |
[INFO] [stdout]  86 |             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] 242 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                        ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `tower_grpc::codegen::server::grpc::Never`, which is uninhabited
[INFO] [stdout]    --> src/helloworld.rs:86:34
[INFO] [stdout]     |
[INFO] [stdout]  86 |             Err(e) => return Err(From::from(e)),
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 |                         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]    --> src/helloworld.rs:86:30
[INFO] [stdout]     |
[INFO] [stdout]  86 |             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] 249 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                        ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `tower_grpc::codegen::server::grpc::Never`, which is uninhabited
[INFO] [stdout]    --> src/helloworld.rs:86:34
[INFO] [stdout]     |
[INFO] [stdout]  86 |             Err(e) => return Err(From::from(e)),
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 249 |                         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]    --> src/helloworld.rs:86:30
[INFO] [stdout]     |
[INFO] [stdout]  86 |             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] 256 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                        ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `tower_grpc::codegen::server::grpc::Never`, which is uninhabited
[INFO] [stdout]    --> src/helloworld.rs:86:34
[INFO] [stdout]     |
[INFO] [stdout]  86 |             Err(e) => return Err(From::from(e)),
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 256 |                         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]    --> src/helloworld.rs:86:30
[INFO] [stdout]     |
[INFO] [stdout]  86 |             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] 228 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                        ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `tower_grpc::codegen::server::grpc::Never`, which is uninhabited
[INFO] [stdout]    --> src/helloworld.rs:86:34
[INFO] [stdout]     |
[INFO] [stdout]  86 |             Err(e) => return Err(From::from(e)),
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 228 |                         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]    --> src/helloworld.rs:86:30
[INFO] [stdout]     |
[INFO] [stdout]  86 |             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] 235 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                        ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `tower_grpc::codegen::server::grpc::Never`, which is uninhabited
[INFO] [stdout]    --> src/helloworld.rs:86:34
[INFO] [stdout]     |
[INFO] [stdout]  86 |             Err(e) => return Err(From::from(e)),
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 235 |                         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]    --> src/helloworld.rs:86:30
[INFO] [stdout]     |
[INFO] [stdout]  86 |             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] 228 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                        ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `tower_grpc::codegen::server::grpc::Never`, which is uninhabited
[INFO] [stdout]    --> src/helloworld.rs:86:34
[INFO] [stdout]     |
[INFO] [stdout]  86 |             Err(e) => return Err(From::from(e)),
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 228 |                         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]    --> src/helloworld.rs:86:30
[INFO] [stdout]     |
[INFO] [stdout]  86 |             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] 242 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                        ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `tower_grpc::codegen::server::grpc::Never`, which is uninhabited
[INFO] [stdout]    --> src/helloworld.rs:86:34
[INFO] [stdout]     |
[INFO] [stdout]  86 |             Err(e) => return Err(From::from(e)),
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 |                         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]    --> src/helloworld.rs:86:30
[INFO] [stdout]     |
[INFO] [stdout]  86 |             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] 249 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                        ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `tower_grpc::codegen::server::grpc::Never`, which is uninhabited
[INFO] [stdout]    --> src/helloworld.rs:86:34
[INFO] [stdout]     |
[INFO] [stdout]  86 |             Err(e) => return Err(From::from(e)),
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 249 |                         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]    --> src/helloworld.rs:86:30
[INFO] [stdout]     |
[INFO] [stdout]  86 |             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] 256 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                        ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `tower_grpc::codegen::server::grpc::Never`, which is uninhabited
[INFO] [stdout]    --> src/helloworld.rs:86:34
[INFO] [stdout]     |
[INFO] [stdout]  86 |             Err(e) => return Err(From::from(e)),
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 256 |                         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]    --> src/helloworld.rs:86:30
[INFO] [stdout]     |
[INFO] [stdout]  86 |             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] 235 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                        ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `tower_grpc::codegen::server::grpc::Never`, which is uninhabited
[INFO] [stdout]    --> src/helloworld.rs:86:34
[INFO] [stdout]     |
[INFO] [stdout]  86 |             Err(e) => return Err(From::from(e)),
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 235 |                         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]    --> src/helloworld.rs:86:30
[INFO] [stdout]     |
[INFO] [stdout]  86 |             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] 242 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                        ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `tower_grpc::codegen::server::grpc::Never`, which is uninhabited
[INFO] [stdout]    --> src/helloworld.rs:86:34
[INFO] [stdout]     |
[INFO] [stdout]  86 |             Err(e) => return Err(From::from(e)),
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 |                         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]    --> src/helloworld.rs:86:30
[INFO] [stdout]     |
[INFO] [stdout]  86 |             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] 249 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                        ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `tower_grpc::codegen::server::grpc::Never`, which is uninhabited
[INFO] [stdout]    --> src/helloworld.rs:86:34
[INFO] [stdout]     |
[INFO] [stdout]  86 |             Err(e) => return Err(From::from(e)),
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 249 |                         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]    --> src/helloworld.rs:86:30
[INFO] [stdout]     |
[INFO] [stdout]  86 |             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] 256 |                         let response = try_ready!(fut.poll());
[INFO] [stdout]     |                                        ---------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout] note: this expression has type `tower_grpc::codegen::server::grpc::Never`, which is uninhabited
[INFO] [stdout]    --> src/helloworld.rs:86:34
[INFO] [stdout]     |
[INFO] [stdout]  86 |             Err(e) => return Err(From::from(e)),
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 256 |                         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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 30.29s
[INFO] running `Command { std: "docker" "inspect" "a199e985874b13e8d64986a13dd692eca49cfa2a10e405b047f8c822803f6c78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a199e985874b13e8d64986a13dd692eca49cfa2a10e405b047f8c822803f6c78", kill_on_drop: false }`
[INFO] [stdout] a199e985874b13e8d64986a13dd692eca49cfa2a10e405b047f8c822803f6c78
