[INFO] cloning repository https://github.com/datewu/tokio-tutor [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/datewu/tokio-tutor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdatewu%2Ftokio-tutor", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdatewu%2Ftokio-tutor'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1eb344d989d93f4a236d1b5552106ca76d6d2404 [INFO] checking datewu/tokio-tutor against try#b32fc44666c052e7cf07ab471bfb6f9ec571902f for pr-138676 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdatewu%2Ftokio-tutor" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/datewu/tokio-tutor on toolchain b32fc44666c052e7cf07ab471bfb6f9ec571902f [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b32fc44666c052e7cf07ab471bfb6f9ec571902f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/datewu/tokio-tutor [INFO] finished tweaking git repo https://github.com/datewu/tokio-tutor [INFO] tweaked toml for git repo https://github.com/datewu/tokio-tutor written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/datewu/tokio-tutor 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" "+b32fc44666c052e7cf07ab471bfb6f9ec571902f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded atoi v0.3.3 [INFO] [stderr] Downloaded mini-redis v0.4.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+b32fc44666c052e7cf07ab471bfb6f9ec571902f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ef631f942ee71c8ea11d640761821e27fc903f370545a842f5e3d8a385b9657d [INFO] running `Command { std: "docker" "start" "-a" "ef631f942ee71c8ea11d640761821e27fc903f370545a842f5e3d8a385b9657d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ef631f942ee71c8ea11d640761821e27fc903f370545a842f5e3d8a385b9657d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ef631f942ee71c8ea11d640761821e27fc903f370545a842f5e3d8a385b9657d", kill_on_drop: false }` [INFO] [stdout] ef631f942ee71c8ea11d640761821e27fc903f370545a842f5e3d8a385b9657d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+b32fc44666c052e7cf07ab471bfb6f9ec571902f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9cf5c3f52a88eec2633b412d4473d8875c101fd7e41171473f309ca6ae0ad5d2 [INFO] running `Command { std: "docker" "start" "-a" "9cf5c3f52a88eec2633b412d4473d8875c101fd7e41171473f309ca6ae0ad5d2", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.70 [INFO] [stderr] Compiling libc v0.2.151 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling num-traits v0.2.17 [INFO] [stderr] Checking tracing-core v0.1.32 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking smallvec v1.11.2 [INFO] [stderr] Compiling serde v1.0.193 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling futures-core v0.3.29 [INFO] [stderr] Compiling unicode-segmentation v1.10.1 [INFO] [stderr] Compiling serde_json v1.0.108 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Checking regex-syntax v0.6.29 [INFO] [stderr] Checking unicode-width v0.1.11 [INFO] [stderr] Checking regex-automata v0.4.3 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling quote v1.0.33 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling syn v2.0.41 [INFO] [stderr] Checking parking_lot_core v0.9.9 [INFO] [stderr] Checking signal-hook-registry v1.4.1 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Checking mio v0.8.10 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking socket2 v0.5.5 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking bitflags v1.3.2 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking iana-time-zone v0.1.58 [INFO] [stderr] Checking tracing-log v0.1.4 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking chrono v0.4.31 [INFO] [stderr] Checking sharded-slab v0.1.7 [INFO] [stderr] Checking regex v1.10.2 [INFO] [stderr] Checking regex-automata v0.1.10 [INFO] [stderr] Checking thread_local v1.1.7 [INFO] [stderr] Checking atoi v0.3.3 [INFO] [stderr] Checking matchers v0.0.1 [INFO] [stderr] Checking tracing-serde v0.1.3 [INFO] [stderr] Compiling structopt-derive v0.4.18 [INFO] [stderr] Checking structopt v0.3.26 [INFO] [stderr] Compiling tracing-attributes v0.1.27 [INFO] [stderr] Compiling pin-project-internal v1.1.3 [INFO] [stderr] Compiling tokio-macros v2.2.0 [INFO] [stderr] Compiling async-stream-impl v0.3.5 [INFO] [stderr] Checking async-stream v0.3.5 [INFO] [stderr] Checking tokio v1.35.0 [INFO] [stderr] Checking tracing v0.1.40 [INFO] [stderr] Checking pin-project v1.1.3 [INFO] [stderr] Checking tracing-futures v0.2.5 [INFO] [stderr] Checking tracing-subscriber v0.2.25 [INFO] [stderr] Checking tokio-stream v0.1.14 [INFO] [stderr] Checking mini-redis v0.4.1 [INFO] [stderr] Checking my-redis v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: struct `Connection` is never constructed [INFO] [stdout] --> src/connection.rs:17:12 [INFO] [stdout] | [INFO] [stdout] 17 | pub struct Connection { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `read_frame`, `parse_frame`, `write_frame`, and `write_decimal` are never used [INFO] [stdout] --> src/connection.rs:23:12 [INFO] [stdout] | [INFO] [stdout] 22 | impl Connection { [INFO] [stdout] | --------------- associated items in this implementation [INFO] [stdout] 23 | pub fn new(stream: TcpStream) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 29 | pub async fn read_frame(&mut self) -> Result> { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 44 | fn parse_frame(&mut self) -> Result> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 58 | async fn write_frame(&mut self, frame: &Frame) -> io::Result<()> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 90 | async fn write_decimal(&mut self, val: u64) -> io::Result<()> { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Connection` is never constructed [INFO] [stdout] --> src/connection.rs:17:12 [INFO] [stdout] | [INFO] [stdout] 17 | pub struct Connection { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `read_frame`, `parse_frame`, `write_frame`, and `write_decimal` are never used [INFO] [stdout] --> src/connection.rs:23:12 [INFO] [stdout] | [INFO] [stdout] 22 | impl Connection { [INFO] [stdout] | --------------- associated items in this implementation [INFO] [stdout] 23 | pub fn new(stream: TcpStream) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 29 | pub async fn read_frame(&mut self) -> Result> { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 44 | fn parse_frame(&mut self) -> Result> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 58 | async fn write_frame(&mut self, frame: &Frame) -> io::Result<()> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 90 | async fn write_decimal(&mut self, val: u64) -> io::Result<()> { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.00s [INFO] running `Command { std: "docker" "inspect" "9cf5c3f52a88eec2633b412d4473d8875c101fd7e41171473f309ca6ae0ad5d2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9cf5c3f52a88eec2633b412d4473d8875c101fd7e41171473f309ca6ae0ad5d2", kill_on_drop: false }` [INFO] [stdout] 9cf5c3f52a88eec2633b412d4473d8875c101fd7e41171473f309ca6ae0ad5d2