[INFO] cloning repository https://github.com/ymgyt/tokio-mini-redis-handson
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ymgyt/tokio-mini-redis-handson" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fymgyt%2Ftokio-mini-redis-handson", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fymgyt%2Ftokio-mini-redis-handson'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 055e792b048e97c81d21001eabb1c4492a3a8950
[INFO] checking ymgyt/tokio-mini-redis-handson against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fymgyt%2Ftokio-mini-redis-handson" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ymgyt/tokio-mini-redis-handson
[INFO] finished tweaking git repo https://github.com/ymgyt/tokio-mini-redis-handson
[INFO] tweaked toml for git repo https://github.com/ymgyt/tokio-mini-redis-handson written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ymgyt/tokio-mini-redis-handson 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/ymgyt/tokio-mini-redis-handson 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 49b739d90e2173ed0f876fc18dd3a6e1757d4fb982d6c5a25b9d87a1f09f10c8
[INFO] running `Command { std: "docker" "start" "-a" "49b739d90e2173ed0f876fc18dd3a6e1757d4fb982d6c5a25b9d87a1f09f10c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49b739d90e2173ed0f876fc18dd3a6e1757d4fb982d6c5a25b9d87a1f09f10c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49b739d90e2173ed0f876fc18dd3a6e1757d4fb982d6c5a25b9d87a1f09f10c8", kill_on_drop: false }`
[INFO] [stdout] 49b739d90e2173ed0f876fc18dd3a6e1757d4fb982d6c5a25b9d87a1f09f10c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] f57f3c751458e306054878447b38118fbf43f761e1857a9dc4374ee1da2c8e27
[INFO] running `Command { std: "docker" "start" "-a" "f57f3c751458e306054878447b38118fbf43f761e1857a9dc4374ee1da2c8e27", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking tracing-core v0.1.13
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]     Checking arc-swap v0.4.7
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking sharded-slab v0.0.9
[INFO] [stderr]     Checking smallvec v1.4.1
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking pin-project-lite v0.1.7
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking atoi v0.3.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking tracing-serde v0.1.1
[INFO] [stderr]     Checking tracing-log v0.1.1
[INFO] [stderr]     Checking aho-corasick v0.7.13
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[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
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[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]     Checking tracing-subscriber v0.2.10
[INFO] [stderr]    Compiling tracing-attributes v0.1.9
[INFO] [stderr]    Compiling structopt-derive v0.4.9
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling async-stream-impl v0.2.1
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking async-stream v0.2.1
[INFO] [stderr]     Checking tracing v0.1.18
[INFO] [stderr]     Checking structopt v0.3.16
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]     Checking mini_redis v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::sync::Arc`
[INFO] [stdout]  --> src/server.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::sync::Arc;
[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: `std::sync::Arc`
[INFO] [stdout]  --> src/server.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::sync::Arc;
[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: `TcpStream`
[INFO] [stdout]  --> src/server.rs:3:31
[INFO] [stdout]   |
[INFO] [stdout] 3 | use tokio::net::{TcpListener, TcpStream};
[INFO] [stdout]   |                               ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Semaphore`, `broadcast`, and `mpsc`
[INFO] [stdout]  --> src/server.rs:4:19
[INFO] [stdout]   |
[INFO] [stdout] 4 | use tokio::sync::{broadcast, mpsc, Semaphore};
[INFO] [stdout]   |                   ^^^^^^^^^  ^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TcpStream`
[INFO] [stdout]  --> src/server.rs:3:31
[INFO] [stdout]   |
[INFO] [stdout] 3 | use tokio::net::{TcpListener, TcpStream};
[INFO] [stdout]   |                               ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration` and `self`
[INFO] [stdout]  --> src/server.rs:5:19
[INFO] [stdout]   |
[INFO] [stdout] 5 | use tokio::time::{self, Duration};
[INFO] [stdout]   |                   ^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Semaphore`, `broadcast`, and `mpsc`
[INFO] [stdout]  --> src/server.rs:4:19
[INFO] [stdout]   |
[INFO] [stdout] 4 | use tokio::sync::{broadcast, mpsc, Semaphore};
[INFO] [stdout]   |                   ^^^^^^^^^  ^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `debug`, `error`, `info`, and `instrument`
[INFO] [stdout]  --> src/server.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 | use tracing::{debug, error, info, instrument};
[INFO] [stdout]   |               ^^^^^  ^^^^^  ^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration` and `self`
[INFO] [stdout]  --> src/server.rs:5:19
[INFO] [stdout]   |
[INFO] [stdout] 5 | use tokio::time::{self, Duration};
[INFO] [stdout]   |                   ^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `debug`, `error`, `info`, and `instrument`
[INFO] [stdout]  --> src/server.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 | use tracing::{debug, error, info, instrument};
[INFO] [stdout]   |               ^^^^^  ^^^^^  ^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `listener`
[INFO] [stdout]  --> src/server.rs:8:18
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub async fn run(listener: TcpListener, shutdown: impl Future) -> crate::Result<()> {
[INFO] [stdout]   |                  ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_listener`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `shutdown`
[INFO] [stdout]  --> src/server.rs:8:41
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub async fn run(listener: TcpListener, shutdown: impl Future) -> crate::Result<()> {
[INFO] [stdout]   |                                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_shutdown`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `listener`
[INFO] [stdout]  --> src/server.rs:8:18
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub async fn run(listener: TcpListener, shutdown: impl Future) -> crate::Result<()> {
[INFO] [stdout]   |                  ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_listener`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `shutdown`
[INFO] [stdout]  --> src/server.rs:8:41
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub async fn run(listener: TcpListener, shutdown: impl Future) -> crate::Result<()> {
[INFO] [stdout]   |                                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_shutdown`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.55s
[INFO] running `Command { std: "docker" "inspect" "f57f3c751458e306054878447b38118fbf43f761e1857a9dc4374ee1da2c8e27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f57f3c751458e306054878447b38118fbf43f761e1857a9dc4374ee1da2c8e27", kill_on_drop: false }`
[INFO] [stdout] f57f3c751458e306054878447b38118fbf43f761e1857a9dc4374ee1da2c8e27
