[INFO] cloning repository https://github.com/sunnysab/a-tokio-tower-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sunnysab/a-tokio-tower-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsunnysab%2Fa-tokio-tower-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsunnysab%2Fa-tokio-tower-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ce9a1dd4673a3fe7e086f0b91d78e3ffe2abdb26
[INFO] checking sunnysab/a-tokio-tower-example against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsunnysab%2Fa-tokio-tower-example" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/sunnysab/a-tokio-tower-example
[INFO] finished tweaking git repo https://github.com/sunnysab/a-tokio-tower-example
[INFO] tweaked toml for git repo https://github.com/sunnysab/a-tokio-tower-example written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sunnysab/a-tokio-tower-example on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sunnysab/a-tokio-tower-example 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-executor v0.3.16
[INFO] [stderr]   Downloaded tokio-tower v0.5.1
[INFO] [stderr]   Downloaded async-bincode v0.6.1
[INFO] [stderr]   Downloaded crossbeam-channel v0.3.9
[INFO] [stderr]   Downloaded nom v4.2.3
[INFO] [stderr]   Downloaded tower v0.4.8
[INFO] [stderr]   Downloaded hdrhistogram v6.3.4
[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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de9f9c22d5e59d0f666fc98e5660658fb61fb027b1e39605834749cea6a26d60
[INFO] running `Command { std: "docker" "start" "-a" "de9f9c22d5e59d0f666fc98e5660658fb61fb027b1e39605834749cea6a26d60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de9f9c22d5e59d0f666fc98e5660658fb61fb027b1e39605834749cea6a26d60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de9f9c22d5e59d0f666fc98e5660658fb61fb027b1e39605834749cea6a26d60", kill_on_drop: false }`
[INFO] [stdout] de9f9c22d5e59d0f666fc98e5660658fb61fb027b1e39605834749cea6a26d60
[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=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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01c9511056a374869e30d336187e2941267c209e2f3dd388c577394b5628252d
[INFO] running `Command { std: "docker" "start" "-a" "01c9511056a374869e30d336187e2941267c209e2f3dd388c577394b5628252d", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling crossbeam-queue v0.3.2
[INFO] [stderr]     Checking futures-util v0.3.16
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking tower-layer v0.3.1
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking tokio v1.9.0
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking crossbeam-epoch v0.9.5
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking crossbeam v0.8.1
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking hdrhistogram v6.3.4
[INFO] [stderr]     Checking futures-executor v0.3.16
[INFO] [stderr]     Checking futures v0.3.16
[INFO] [stderr]     Checking tokio-stream v0.1.7
[INFO] [stderr]     Checking tokio-util v0.6.7
[INFO] [stderr]     Checking async-bincode v0.6.1
[INFO] [stderr]     Checking tower v0.4.8
[INFO] [stderr]     Checking tokio-tower v0.5.1
[INFO] [stderr]     Checking rpc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `futures::SinkExt`
[INFO] [stdout]  --> src/client.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use futures::SinkExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::SinkExt`
[INFO] [stdout]  --> src/client.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use futures::SinkExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Request` is never used
[INFO] [stdout]   --> src/server.rs:16:6
[INFO] [stdout]    |
[INFO] [stdout] 16 | type Request = Frame;
[INFO] [stdout]    |      ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Response` is never used
[INFO] [stdout]   --> src/server.rs:17:6
[INFO] [stdout]    |
[INFO] [stdout] 17 | type Response = Frame;
[INFO] [stdout]    |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Request` is never used
[INFO] [stdout]   --> src/client.rs:17:6
[INFO] [stdout]    |
[INFO] [stdout] 17 | type Request = Frame;
[INFO] [stdout]    |      ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Response` is never used
[INFO] [stdout]   --> src/client.rs:18:6
[INFO] [stdout]    |
[INFO] [stdout] 18 | type Response = Frame;
[INFO] [stdout]    |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Request` is never used
[INFO] [stdout]   --> src/client.rs:17:6
[INFO] [stdout]    |
[INFO] [stdout] 17 | type Request = Frame;
[INFO] [stdout]    |      ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Response` is never used
[INFO] [stdout]   --> src/client.rs:18:6
[INFO] [stdout]    |
[INFO] [stdout] 18 | type Response = Frame;
[INFO] [stdout]    |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Request` is never used
[INFO] [stdout]   --> src/server.rs:16:6
[INFO] [stdout]    |
[INFO] [stdout] 16 | type Request = Frame;
[INFO] [stdout]    |      ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Response` is never used
[INFO] [stdout]   --> src/server.rs:17:6
[INFO] [stdout]    |
[INFO] [stdout] 17 | type Response = Frame;
[INFO] [stdout]    |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.84s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: hdrhistogram v6.3.4, nom v4.2.3
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 5`
[INFO] running `Command { std: "docker" "inspect" "01c9511056a374869e30d336187e2941267c209e2f3dd388c577394b5628252d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01c9511056a374869e30d336187e2941267c209e2f3dd388c577394b5628252d", kill_on_drop: false }`
[INFO] [stdout] 01c9511056a374869e30d336187e2941267c209e2f3dd388c577394b5628252d