[INFO] fetching crate hwatch 0.3.15...
[INFO] checking hwatch-0.3.15 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate hwatch 0.3.15 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate hwatch 0.3.15 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hwatch 0.3.15
[INFO] finished tweaking crates.io crate hwatch 0.3.15
[INFO] tweaked toml for crates.io crate hwatch 0.3.15 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate hwatch 0.3.15 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f399f39d1f536a7ccf5e567de47923281baae2c3c62ffcab5bc2dbd887b58af1
[INFO] running `Command { std: "docker" "start" "-a" "f399f39d1f536a7ccf5e567de47923281baae2c3c62ffcab5bc2dbd887b58af1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f399f39d1f536a7ccf5e567de47923281baae2c3c62ffcab5bc2dbd887b58af1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f399f39d1f536a7ccf5e567de47923281baae2c3c62ffcab5bc2dbd887b58af1", kill_on_drop: false }`
[INFO] [stdout] f399f39d1f536a7ccf5e567de47923281baae2c3c62ffcab5bc2dbd887b58af1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a6378cd0978dda96c0a2d3ca1d445a470b29b3900e9a63bbfd7388658b9bc23
[INFO] running `Command { std: "docker" "start" "-a" "9a6378cd0978dda96c0a2d3ca1d445a470b29b3900e9a63bbfd7388658b9bc23", kill_on_drop: false }`
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[INFO] [stdout] warning: field `tx` is never read
[INFO] [stdout]   --> src/batch.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct Batch {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 50 |     pub tx: Sender<AppEvent>,
[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 `tx` is never read
[INFO] [stdout]   --> src/batch.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct Batch {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 50 |     pub tx: Sender<AppEvent>,
[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` profile [unoptimized + debuginfo] target(s) in 27.86s
[INFO] running `Command { std: "docker" "inspect" "9a6378cd0978dda96c0a2d3ca1d445a470b29b3900e9a63bbfd7388658b9bc23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a6378cd0978dda96c0a2d3ca1d445a470b29b3900e9a63bbfd7388658b9bc23", kill_on_drop: false }`
[INFO] [stdout] 9a6378cd0978dda96c0a2d3ca1d445a470b29b3900e9a63bbfd7388658b9bc23