[INFO] cloning repository https://github.com/578223592/rs_learn_tokio
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/578223592/rs_learn_tokio" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F578223592%2Frs_learn_tokio", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F578223592%2Frs_learn_tokio'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 269d46bed33eff8f294d2bdac69551de4548fa6b
[INFO] testing 578223592/rs_learn_tokio against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F578223592%2Frs_learn_tokio" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/578223592/rs_learn_tokio
[INFO] removed 1 missing examples
[INFO] finished tweaking git repo https://github.com/578223592/rs_learn_tokio
[INFO] tweaked toml for git repo https://github.com/578223592/rs_learn_tokio written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/578223592/rs_learn_tokio on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/578223592/rs_learn_tokio 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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 57a3aba4bd4ad6991406e10c191fca0351e3b7cc502578022099c5089a9f1746
[INFO] running `Command { std: "docker" "start" "-a" "57a3aba4bd4ad6991406e10c191fca0351e3b7cc502578022099c5089a9f1746", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "57a3aba4bd4ad6991406e10c191fca0351e3b7cc502578022099c5089a9f1746", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57a3aba4bd4ad6991406e10c191fca0351e3b7cc502578022099c5089a9f1746", kill_on_drop: false }`
[INFO] [stdout] 57a3aba4bd4ad6991406e10c191fca0351e3b7cc502578022099c5089a9f1746
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b3483752229289fe973bdb6fe4e3d5ac47ff4888f7eb3447cf921ad53a6b4517
[INFO] running `Command { std: "docker" "start" "-a" "b3483752229289fe973bdb6fe4e3d5ac47ff4888f7eb3447cf921ad53a6b4517", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.89
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling libc v0.2.162
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling serde v1.0.215
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling unicode-segmentation v1.12.0
[INFO] [stderr]    Compiling serde_json v1.0.132
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling itoa v1.0.11
[INFO] [stderr]    Compiling iana-time-zone v0.1.61
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]    Compiling bytes v1.8.0
[INFO] [stderr]    Compiling ryu v1.0.18
[INFO] [stderr]    Compiling tracing-log v0.1.4
[INFO] [stderr]    Compiling thread_local v1.1.8
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.87
[INFO] [stderr]    Compiling chrono v0.4.38
[INFO] [stderr]    Compiling atoi v0.3.3
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling mio v1.0.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling socket2 v0.5.7
[INFO] [stderr]    Compiling signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling matchers v0.0.1
[INFO] [stderr]    Compiling tracing-serde v0.1.3
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling pin-project-internal v1.1.7
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]    Compiling async-stream-impl v0.3.6
[INFO] [stderr]    Compiling structopt v0.3.26
[INFO] [stderr]    Compiling async-stream v0.3.6
[INFO] [stderr]    Compiling tokio v1.41.1
[INFO] [stderr]    Compiling pin-project v1.1.7
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling tracing-futures v0.2.5
[INFO] [stderr]    Compiling tracing-subscriber v0.2.25
[INFO] [stderr]    Compiling tokio-stream v0.1.16
[INFO] [stderr]    Compiling mini-redis v0.4.1
[INFO] [stderr]    Compiling learn_tokio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]  --> src/main.rs:9:88
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let tcp_listener: TcpListener = TcpListener::bind("127.0.0.1:6379").await.unwrap();;
[INFO] [stdout]   |                                                                                        ^ help: remove this semicolon
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | /     loop {
[INFO] [stdout] 11 | |         let (socket, _) = tcp_listener.accept().await?;
[INFO] [stdout] 12 | |         tokio::spawn(async move {
[INFO] [stdout] 13 | |             proceess_socket(socket).await;
[INFO] [stdout] 14 | |         });
[INFO] [stdout] 15 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 19 |       Ok(())
[INFO] [stdout]    |       ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 28s
[INFO] running `Command { std: "docker" "inspect" "b3483752229289fe973bdb6fe4e3d5ac47ff4888f7eb3447cf921ad53a6b4517", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3483752229289fe973bdb6fe4e3d5ac47ff4888f7eb3447cf921ad53a6b4517", kill_on_drop: false }`
[INFO] [stdout] b3483752229289fe973bdb6fe4e3d5ac47ff4888f7eb3447cf921ad53a6b4517
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e8982bf6d9ededb406b036c056db125ff399d8375fc43e0f0f6cf81c2c5cda65
[INFO] running `Command { std: "docker" "start" "-a" "e8982bf6d9ededb406b036c056db125ff399d8375fc43e0f0f6cf81c2c5cda65", kill_on_drop: false }`
[INFO] [stderr]    Compiling learn_tokio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]  --> src/main.rs:9:88
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let tcp_listener: TcpListener = TcpListener::bind("127.0.0.1:6379").await.unwrap();;
[INFO] [stdout]   |                                                                                        ^ help: remove this semicolon
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | /     loop {
[INFO] [stdout] 11 | |         let (socket, _) = tcp_listener.accept().await?;
[INFO] [stdout] 12 | |         tokio::spawn(async move {
[INFO] [stdout] 13 | |             proceess_socket(socket).await;
[INFO] [stdout] 14 | |         });
[INFO] [stdout] 15 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 19 |       Ok(())
[INFO] [stdout]    |       ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.90s
[INFO] running `Command { std: "docker" "inspect" "e8982bf6d9ededb406b036c056db125ff399d8375fc43e0f0f6cf81c2c5cda65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8982bf6d9ededb406b036c056db125ff399d8375fc43e0f0f6cf81c2c5cda65", kill_on_drop: false }`
[INFO] [stdout] e8982bf6d9ededb406b036c056db125ff399d8375fc43e0f0f6cf81c2c5cda65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e5d13db9f0de060878968913b5f334626d7eb2dfdeb080a6de96d5d48ede1767
[INFO] running `Command { std: "docker" "start" "-a" "e5d13db9f0de060878968913b5f334626d7eb2dfdeb080a6de96d5d48ede1767", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]  --> src/main.rs:9:88
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let tcp_listener: TcpListener = TcpListener::bind("127.0.0.1:6379").await.unwrap();;
[INFO] [stderr]   |                                                                                        ^ help: remove this semicolon
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/main.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | /     loop {
[INFO] [stderr] 11 | |         let (socket, _) = tcp_listener.accept().await?;
[INFO] [stderr] 12 | |         tokio::spawn(async move {
[INFO] [stderr] 13 | |             proceess_socket(socket).await;
[INFO] [stderr] 14 | |         });
[INFO] [stderr] 15 | |     }
[INFO] [stderr]    | |_____- any code following this expression is unreachable
[INFO] [stderr] ...
[INFO] [stderr] 19 |       Ok(())
[INFO] [stderr]    |       ^^^^^^ unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `learn_tokio` (bin "learn_tokio" test) generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/learn_tokio-ff1e2ffee900cd6a)
[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" "e5d13db9f0de060878968913b5f334626d7eb2dfdeb080a6de96d5d48ede1767", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5d13db9f0de060878968913b5f334626d7eb2dfdeb080a6de96d5d48ede1767", kill_on_drop: false }`
[INFO] [stdout] e5d13db9f0de060878968913b5f334626d7eb2dfdeb080a6de96d5d48ede1767
