[INFO] cloning repository https://github.com/dhruveshb-mecha/zbus-notify
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dhruveshb-mecha/zbus-notify" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdhruveshb-mecha%2Fzbus-notify", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdhruveshb-mecha%2Fzbus-notify'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d43acbcc231b6faf29a9ebc1ec50ee03e94980a3
[INFO] checking dhruveshb-mecha/zbus-notify/d43acbcc231b6faf29a9ebc1ec50ee03e94980a3 against master#eeb94be79adc9df7a09ad0b2421f16e60e6d932c for pr-152971
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdhruveshb-mecha%2Fzbus-notify" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/dhruveshb-mecha/zbus-notify
[INFO] finished tweaking git repo https://github.com/dhruveshb-mecha/zbus-notify
[INFO] tweaked toml for git repo https://github.com/dhruveshb-mecha/zbus-notify written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dhruveshb-mecha/zbus-notify on toolchain eeb94be79adc9df7a09ad0b2421f16e60e6d932c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eeb94be79adc9df7a09ad0b2421f16e60e6d932c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dhruveshb-mecha/zbus-notify 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" "+eeb94be79adc9df7a09ad0b2421f16e60e6d932c" "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 xdg-home v1.1.0
[INFO] [stderr]   Downloaded zvariant_utils v1.1.1
[INFO] [stderr]   Downloaded enumflags2_derive v0.7.9
[INFO] [stderr]   Downloaded zvariant_derive v4.0.3
[INFO] [stderr]   Downloaded zbus_macros v4.2.0
[INFO] [stderr]   Downloaded async-signal v0.2.6
[INFO] [stderr]   Downloaded async-channel v2.2.1
[INFO] [stderr]   Downloaded event-listener v5.3.0
[INFO] [stderr]   Downloaded async-broadcast v0.7.0
[INFO] [stderr]   Downloaded async-executor v1.11.0
[INFO] [stderr]   Downloaded polling v3.7.0
[INFO] [stderr]   Downloaded zbus v4.2.0
[INFO] [stderr]   Downloaded async-io v2.3.2
[INFO] [stderr]   Downloaded zvariant v4.0.3
[INFO] [stderr]   Downloaded async-process v2.2.2
[INFO] [stderr]   Downloaded blocking v1.6.0
[INFO] [stderr]   Downloaded sysinfo v0.30.12
[INFO] [stderr]   Downloaded enumflags2 v0.7.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+eeb94be79adc9df7a09ad0b2421f16e60e6d932c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] edaf0c84c5c86e83b2d0da261dc4d0b442e079d34260224c4934f52d171c78d4
[INFO] running `Command { std: "docker" "start" "-a" "edaf0c84c5c86e83b2d0da261dc4d0b442e079d34260224c4934f52d171c78d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "edaf0c84c5c86e83b2d0da261dc4d0b442e079d34260224c4934f52d171c78d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "edaf0c84c5c86e83b2d0da261dc4d0b442e079d34260224c4934f52d171c78d4", kill_on_drop: false }`
[INFO] [stdout] edaf0c84c5c86e83b2d0da261dc4d0b442e079d34260224c4934f52d171c78d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+eeb94be79adc9df7a09ad0b2421f16e60e6d932c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a530aac2686f4325155f5bdb6903cf361047054c9f42ed2a0de82809078557a8
[INFO] running `Command { std: "docker" "start" "-a" "a530aac2686f4325155f5bdb6903cf361047054c9f42ed2a0de82809078557a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling libc v0.2.154
[INFO] [stderr]     Checking parking v2.2.0
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling winnow v0.5.40
[INFO] [stderr]    Compiling toml_datetime v0.6.5
[INFO] [stderr]    Compiling serde v1.0.200
[INFO] [stderr]     Checking futures-lite v2.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.200
[INFO] [stderr]    Compiling rustix v0.38.34
[INFO] [stderr]    Compiling indexmap v2.2.6
[INFO] [stderr]    Compiling enumflags2_derive v0.7.9
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]     Checking concurrent-queue v2.5.0
[INFO] [stderr]     Checking event-listener v5.3.0
[INFO] [stderr]     Checking event-listener v4.0.3
[INFO] [stderr]     Checking event-listener-strategy v0.5.2
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling memoffset v0.9.1
[INFO] [stderr]     Checking event-listener-strategy v0.4.0
[INFO] [stderr]     Checking linux-raw-sys v0.4.13
[INFO] [stderr]    Compiling nix v0.28.0
[INFO] [stderr]     Checking piper v0.2.1
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking async-lock v3.3.0
[INFO] [stderr]     Checking parking_lot_core v0.9.10
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[INFO] [stderr]     Checking parking_lot v0.12.2
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking socket2 v0.5.7
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking async-channel v2.2.1
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking blocking v1.6.0
[INFO] [stderr]    Compiling toml_edit v0.21.1
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking rayon-core v1.12.1
[INFO] [stderr]     Checking either v1.11.0
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]    Compiling anyhow v1.0.83
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking sha1 v0.10.6
[INFO] [stderr]    Compiling zvariant_utils v1.1.1
[INFO] [stderr]     Checking async-fs v2.1.2
[INFO] [stderr]    Compiling proc-macro-crate v3.1.0
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking xdg-home v1.1.0
[INFO] [stderr]     Checking async-executor v1.11.0
[INFO] [stderr]     Checking async-broadcast v0.7.0
[INFO] [stderr]    Compiling serde_repr v0.1.19
[INFO] [stderr]    Compiling async-trait v0.1.80
[INFO] [stderr]     Checking ordered-stream v0.2.0
[INFO] [stderr]     Checking sysinfo v0.30.12
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]    Compiling zvariant_derive v4.0.3
[INFO] [stderr]    Compiling zbus_macros v4.2.0
[INFO] [stderr]     Checking polling v3.7.0
[INFO] [stderr]     Checking async-io v2.3.2
[INFO] [stderr]     Checking enumflags2 v0.7.9
[INFO] [stderr]     Checking zvariant v4.0.3
[INFO] [stderr]     Checking tokio-stream v0.1.15
[INFO] [stderr]     Checking zbus_names v3.0.0
[INFO] [stderr]     Checking zbus v4.2.0
[INFO] [stderr]     Checking zbus-signal-demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `blocking::connection`
[INFO] [stdout]  --> src/server.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     blocking::connection,
[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: `blocking::connection`
[INFO] [stdout]  --> src/server.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     blocking::connection,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/server.rs:174:5
[INFO] [stdout]     |
[INFO] [stdout] 130 | /     loop {
[INFO] [stdout] 131 | |         interval.tick().await;
[INFO] [stdout] 132 | |
[INFO] [stdout] 133 | |         let mut sys = sysinfo::System::new_all();
[INFO] [stdout] ...   |
[INFO] [stdout] 152 | |         greeter.host_metrics(&ctxt, hots_matrix).await?;
[INFO] [stdout] 153 | |     }
[INFO] [stdout]     | |_____- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 174 |       Ok(())
[INFO] [stdout]     |       ^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/server.rs:174:5
[INFO] [stdout]     |
[INFO] [stdout] 130 | /     loop {
[INFO] [stdout] 131 | |         interval.tick().await;
[INFO] [stdout] 132 | |
[INFO] [stdout] 133 | |         let mut sys = sysinfo::System::new_all();
[INFO] [stdout] ...   |
[INFO] [stdout] 152 | |         greeter.host_metrics(&ctxt, hots_matrix).await?;
[INFO] [stdout] 153 | |     }
[INFO] [stdout]     | |_____- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 174 |       Ok(())
[INFO] [stdout]     |       ^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/server.rs:110:9
[INFO] [stdout]     |
[INFO] [stdout] 110 |     let mut handles: Vec<JoinHandle<()>> = Vec::new();
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `handles`
[INFO] [stdout]    --> src/server.rs:110:9
[INFO] [stdout]     |
[INFO] [stdout] 110 |     let mut handles: Vec<JoinHandle<()>> = Vec::new();
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_handles`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctrl_c`
[INFO] [stdout]    --> src/server.rs:121:9
[INFO] [stdout]     |
[INFO] [stdout] 121 |     let ctrl_c = async {
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_ctrl_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/server.rs:110:9
[INFO] [stdout]     |
[INFO] [stdout] 110 |     let mut handles: Vec<JoinHandle<()>> = Vec::new();
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `handles`
[INFO] [stdout]    --> src/server.rs:110:9
[INFO] [stdout]     |
[INFO] [stdout] 110 |     let mut handles: Vec<JoinHandle<()>> = Vec::new();
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_handles`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctrl_c`
[INFO] [stdout]    --> src/server.rs:121:9
[INFO] [stdout]     |
[INFO] [stdout] 121 |     let ctrl_c = async {
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_ctrl_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 03s
[INFO] running `Command { std: "docker" "inspect" "a530aac2686f4325155f5bdb6903cf361047054c9f42ed2a0de82809078557a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a530aac2686f4325155f5bdb6903cf361047054c9f42ed2a0de82809078557a8", kill_on_drop: false }`
[INFO] [stdout] a530aac2686f4325155f5bdb6903cf361047054c9f42ed2a0de82809078557a8