[INFO] fetching crate rumqttlog 0.7.0...
[INFO] checking rumqttlog-0.7.0 against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] extracting crate rumqttlog 0.7.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate rumqttlog 0.7.0 on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rumqttlog 0.7.0
[INFO] finished tweaking crates.io crate rumqttlog 0.7.0
[INFO] tweaked toml for crates.io crate rumqttlog 0.7.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cpp_demangle v0.3.3
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8852c8f30a393183ac36f5b6f2c69bc7ba19a6cfa5e887c9ed29ea98e2b45c81
[INFO] running `Command { std: "docker" "start" "-a" "8852c8f30a393183ac36f5b6f2c69bc7ba19a6cfa5e887c9ed29ea98e2b45c81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8852c8f30a393183ac36f5b6f2c69bc7ba19a6cfa5e887c9ed29ea98e2b45c81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8852c8f30a393183ac36f5b6f2c69bc7ba19a6cfa5e887c9ed29ea98e2b45c81", kill_on_drop: false }`
[INFO] [stdout] 8852c8f30a393183ac36f5b6f2c69bc7ba19a6cfa5e887c9ed29ea98e2b45c81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 78cd12c96723c0226ada8710fed76a13b5164ce086189a625082ea9137ce7d39
[INFO] running `Command { std: "docker" "start" "-a" "78cd12c96723c0226ada8710fed76a13b5164ce086189a625082ea9137ce7d39", kill_on_drop: false }`
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[INFO] [stderr]     Checking thiserror v1.0.26
[INFO] [stderr]     Checking argh v0.1.5
[INFO] [stderr]     Checking prost v0.6.1
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[INFO] [stderr]    Compiling prost-types v0.7.0
[INFO] [stderr]    Compiling pprof v0.3.22
[INFO] [stderr]     Checking rumqttlog v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `last_failed`
[INFO] [stdout]   --> src/router/connection.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     last_failed: Option<Notification>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `last_failed`
[INFO] [stdout]   --> src/router/connection.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     last_failed: Option<Notification>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 51.27s
[INFO] running `Command { std: "docker" "inspect" "78cd12c96723c0226ada8710fed76a13b5164ce086189a625082ea9137ce7d39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78cd12c96723c0226ada8710fed76a13b5164ce086189a625082ea9137ce7d39", kill_on_drop: false }`
[INFO] [stdout] 78cd12c96723c0226ada8710fed76a13b5164ce086189a625082ea9137ce7d39