[INFO] cloning repository https://github.com/ktims/mqtt-exporter-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ktims/mqtt-exporter-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fktims%2Fmqtt-exporter-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fktims%2Fmqtt-exporter-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3085e38dfd868c77f5d33fe3d676d21f77b9a305
[INFO] building ktims/mqtt-exporter-rs against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fktims%2Fmqtt-exporter-rs" "/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/ktims/mqtt-exporter-rs
[INFO] finished tweaking git repo https://github.com/ktims/mqtt-exporter-rs
[INFO] tweaked toml for git repo https://github.com/ktims/mqtt-exporter-rs written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ktims/mqtt-exporter-rs on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ktims/mqtt-exporter-rs 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6a86cbdf11daaa654000aedb265dcb005c150913fb017e8a5ad336b6e9f9d267
[INFO] running `Command { std: "docker" "start" "-a" "6a86cbdf11daaa654000aedb265dcb005c150913fb017e8a5ad336b6e9f9d267", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a86cbdf11daaa654000aedb265dcb005c150913fb017e8a5ad336b6e9f9d267", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a86cbdf11daaa654000aedb265dcb005c150913fb017e8a5ad336b6e9f9d267", kill_on_drop: false }`
[INFO] [stdout] 6a86cbdf11daaa654000aedb265dcb005c150913fb017e8a5ad336b6e9f9d267
[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" "-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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63e531b07f4d78e20ff936376cade1c6c8db3f7f211db8200897e2041582676e
[INFO] running `Command { std: "docker" "start" "-a" "63e531b07f4d78e20ff936376cade1c6c8db3f7f211db8200897e2041582676e", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.218
[INFO] [stderr]    Compiling hashbrown v0.15.2
[INFO] [stderr]    Compiling aws-lc-rs v1.12.5
[INFO] [stderr]    Compiling quote v1.0.39
[INFO] [stderr]    Compiling crunchy v0.2.3
[INFO] [stderr]    Compiling smallvec v1.14.0
[INFO] [stderr]    Compiling jobserver v0.1.32
[INFO] [stderr]    Compiling http v1.2.0
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling tracing-core v0.1.33
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rustls v0.23.23
[INFO] [stderr]    Compiling rustls v0.22.4
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling winnow v0.7.3
[INFO] [stderr]    Compiling endian-type v0.1.2
[INFO] [stderr]    Compiling ordered-float v4.5.0
[INFO] [stderr]    Compiling arraydeque v0.5.1
[INFO] [stderr]    Compiling syn v2.0.99
[INFO] [stderr]    Compiling rand_xoshiro v0.6.0
[INFO] [stderr]    Compiling sketches-ddsketch v0.3.0
[INFO] [stderr]    Compiling cc v1.2.16
[INFO] [stderr]    Compiling nibble_vec v0.1.0
[INFO] [stderr]    Compiling trim-in-place v0.1.7
[INFO] [stderr]    Compiling rustls-native-certs v0.7.3
[INFO] [stderr]    Compiling flume v0.11.1
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[INFO] [stderr]    Compiling env_filter v0.1.3
[INFO] [stderr]    Compiling const-random-macro v0.1.16
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[INFO] [stderr]    Compiling indexmap v2.7.1
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[INFO] [stderr]    Compiling env_logger v0.11.6
[INFO] [stderr]    Compiling ordered-multimap v0.7.3
[INFO] [stderr]    Compiling cmake v0.1.54
[INFO] [stderr]    Compiling yaml-rust2 v0.10.0
[INFO] [stderr]    Compiling rust-ini v0.21.1
[INFO] [stderr]    Compiling aws-lc-sys v0.26.0
[INFO] [stderr]    Compiling ring v0.17.13
[INFO] [stderr]    Compiling http-body-util v0.1.2
[INFO] [stderr]    Compiling serde_derive v1.0.218
[INFO] [stderr]    Compiling tokio-macros v2.5.0
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[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling async-trait v0.1.87
[INFO] [stderr]    Compiling tokio v1.44.0
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling ppv-lite86 v0.2.20
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling pest v2.7.15
[INFO] [stderr]    Compiling metrics v0.24.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling pest_meta v2.7.15
[INFO] [stderr]    Compiling pest_generator v2.7.15
[INFO] [stderr]    Compiling tokio-util v0.7.13
[INFO] [stderr]    Compiling backoff v0.4.0
[INFO] [stderr]    Compiling bitflags v2.9.0
[INFO] [stderr]    Compiling serde_spanned v0.6.8
[INFO] [stderr]    Compiling toml_datetime v0.6.8
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling raw-cpuid v11.5.0
[INFO] [stderr]    Compiling h2 v0.4.8
[INFO] [stderr]    Compiling ron v0.8.1
[INFO] [stderr]    Compiling serde_regex v1.1.0
[INFO] [stderr]    Compiling toml_edit v0.22.24
[INFO] [stderr]    Compiling pest_derive v2.7.15
[INFO] [stderr]    Compiling json5 v0.4.1
[INFO] [stderr]    Compiling quanta v0.12.5
[INFO] [stderr]    Compiling metrics-util v0.19.0
[INFO] [stderr]    Compiling hyper v1.6.0
[INFO] [stderr]    Compiling toml v0.8.20
[INFO] [stderr]    Compiling config v0.15.9
[INFO] [stderr]    Compiling hyper-util v0.1.10
[INFO] [stderr]    Compiling rustls-webpki v0.102.8
[INFO] [stderr]    Compiling tokio-rustls v0.25.0
[INFO] [stderr]    Compiling rumqttc v0.24.0
[INFO] [stderr]    Compiling tokio-rustls v0.26.2
[INFO] [stderr]    Compiling hyper-rustls v0.27.5
[INFO] [stderr]    Compiling metrics-exporter-prometheus v0.16.2
[INFO] [stderr]    Compiling mqtt-exporter v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:387:18
[INFO] [stdout]     |
[INFO] [stdout] 387 |     let (client, mut eventloop) = AsyncClient::new(opts, 10);
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 06s
[INFO] running `Command { std: "docker" "inspect" "63e531b07f4d78e20ff936376cade1c6c8db3f7f211db8200897e2041582676e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63e531b07f4d78e20ff936376cade1c6c8db3f7f211db8200897e2041582676e", kill_on_drop: false }`
[INFO] [stdout] 63e531b07f4d78e20ff936376cade1c6c8db3f7f211db8200897e2041582676e
[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" "-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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dab08cc999e2a45e8a3cc15c4c538ec9635256498cceb30401973336b78758f1
[INFO] running `Command { std: "docker" "start" "-a" "dab08cc999e2a45e8a3cc15c4c538ec9635256498cceb30401973336b78758f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling mqtt-exporter v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:387:18
[INFO] [stdout]     |
[INFO] [stdout] 387 |     let (client, mut eventloop) = AsyncClient::new(opts, 10);
[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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "dab08cc999e2a45e8a3cc15c4c538ec9635256498cceb30401973336b78758f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dab08cc999e2a45e8a3cc15c4c538ec9635256498cceb30401973336b78758f1", kill_on_drop: false }`
[INFO] [stdout] dab08cc999e2a45e8a3cc15c4c538ec9635256498cceb30401973336b78758f1
