[INFO] cloning repository https://github.com/suryata/advprog-module9
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/suryata/advprog-module9" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsuryata%2Fadvprog-module9", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsuryata%2Fadvprog-module9'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a949901900921be0c3dd391ec47bbc52393ffeec
[INFO] checking suryata/advprog-module9 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsuryata%2Fadvprog-module9" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/suryata/advprog-module9 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/suryata/advprog-module9
[INFO] finished tweaking git repo https://github.com/suryata/advprog-module9
[INFO] tweaked toml for git repo https://github.com/suryata/advprog-module9 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/suryata/advprog-module9 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 647a0671dd529a0a084ec11068fd7fc086ab2f0cfff3da1c8ef2e8e05cb9c76b
[INFO] running `Command { std: "docker" "start" "-a" "647a0671dd529a0a084ec11068fd7fc086ab2f0cfff3da1c8ef2e8e05cb9c76b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "647a0671dd529a0a084ec11068fd7fc086ab2f0cfff3da1c8ef2e8e05cb9c76b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "647a0671dd529a0a084ec11068fd7fc086ab2f0cfff3da1c8ef2e8e05cb9c76b", kill_on_drop: false }`
[INFO] [stdout] 647a0671dd529a0a084ec11068fd7fc086ab2f0cfff3da1c8ef2e8e05cb9c76b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] facb9c77d05a1a5d1f3bdba01396a6eb4434ca57855998d17fa26b15b9256618
[INFO] running `Command { std: "docker" "start" "-a" "facb9c77d05a1a5d1f3bdba01396a6eb4434ca57855998d17fa26b15b9256618", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.81
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libc v0.2.153
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[INFO] [stderr]    Compiling rustix v0.38.34
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[INFO] [stderr]    Compiling prost-types v0.10.1
[INFO] [stderr]    Compiling tonic-build v0.7.2
[INFO] [stderr]    Compiling grpc-tutorial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tokio-util v0.7.10
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[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/grpc_client.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let mut channel = Channel::from_static("http://[::1]:50051").connect().await?;
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/grpc_client.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let mut channel = Channel::from_static("http://[::1]:50051").connect().await?;
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/grpc_client.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let mut channel = Channel::from_static("http://[::1]:50051").connect().await?;
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/grpc_client.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let mut channel = Channel::from_static("http://[::1]:50051").connect().await?;
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/grpc_server.rs:36:10
[INFO] [stdout]    |
[INFO] [stdout] 36 | async fn main()->Result<(), Box<dyn std::error::Error>>{
[INFO] [stdout]    |          ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/grpc_client.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 | async fn main()->Result<(), Box<dyn std::error::Error>>{
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/grpc_server.rs:36:10
[INFO] [stdout]    |
[INFO] [stdout] 36 | async fn main()->Result<(), Box<dyn std::error::Error>>{
[INFO] [stdout]    |          ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/grpc_client.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 | async fn main()->Result<(), Box<dyn std::error::Error>>{
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.37s
[INFO] running `Command { std: "docker" "inspect" "facb9c77d05a1a5d1f3bdba01396a6eb4434ca57855998d17fa26b15b9256618", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "facb9c77d05a1a5d1f3bdba01396a6eb4434ca57855998d17fa26b15b9256618", kill_on_drop: false }`
[INFO] [stdout] facb9c77d05a1a5d1f3bdba01396a6eb4434ca57855998d17fa26b15b9256618