[INFO] fetching crate fleascope-monitor 0.2.0...
[INFO] checking fleascope-monitor-0.2.0 against try#f77b5bc6c7c84df104f86b0dd01d9490e3923fa8 for pr-147834
[INFO] extracting crate fleascope-monitor 0.2.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate fleascope-monitor 0.2.0
[INFO] finished tweaking crates.io crate fleascope-monitor 0.2.0
[INFO] tweaked toml for crates.io crate fleascope-monitor 0.2.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fleascope-monitor 0.2.0 on toolchain f77b5bc6c7c84df104f86b0dd01d9490e3923fa8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f77b5bc6c7c84df104f86b0dd01d9490e3923fa8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate fleascope-monitor 0.2.0 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" "+f77b5bc6c7c84df104f86b0dd01d9490e3923fa8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+f77b5bc6c7c84df104f86b0dd01d9490e3923fa8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 28c31ed54031de73a8976f0e1ae543275b83d95cbc2b1c8efd9691c94dede7dd
[INFO] running `Command { std: "docker" "start" "-a" "28c31ed54031de73a8976f0e1ae543275b83d95cbc2b1c8efd9691c94dede7dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "28c31ed54031de73a8976f0e1ae543275b83d95cbc2b1c8efd9691c94dede7dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28c31ed54031de73a8976f0e1ae543275b83d95cbc2b1c8efd9691c94dede7dd", kill_on_drop: false }`
[INFO] [stdout] 28c31ed54031de73a8976f0e1ae543275b83d95cbc2b1c8efd9691c94dede7dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+f77b5bc6c7c84df104f86b0dd01d9490e3923fa8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 26c3f2767c70dbb2b180a9ac3aed2663b0803ee37225d51fb1d66c972bb59418
[INFO] running `Command { std: "docker" "start" "-a" "26c3f2767c70dbb2b180a9ac3aed2663b0803ee37225d51fb1d66c972bb59418", kill_on_drop: false }`
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[INFO] [stdout] warning: unused variable: `buffer_response`
[INFO] [stdout]     --> src/control_panel.rs:1366:25
[INFO] [stdout]      |
[INFO] [stdout] 1366 |                     let buffer_response = ui.add(
[INFO] [stdout]      |                         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer_response`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buffer_response`
[INFO] [stdout]     --> src/control_panel.rs:1366:25
[INFO] [stdout]      |
[INFO] [stdout] 1366 |                     let buffer_response = ui.add(
[INFO] [stdout]      |                         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer_response`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Step` is never constructed
[INFO] [stdout]    --> src/device.rs:129:5
[INFO] [stdout]     |
[INFO] [stdout] 123 | pub enum ControlCommand {
[INFO] [stdout]     |          -------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 129 |     Step,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ControlCommand` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Step` is never constructed
[INFO] [stdout]    --> src/device.rs:129:5
[INFO] [stdout]     |
[INFO] [stdout] 123 | pub enum ControlCommand {
[INFO] [stdout]     |          -------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 129 |     Step,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ControlCommand` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4m 11s
[INFO] running `Command { std: "docker" "inspect" "26c3f2767c70dbb2b180a9ac3aed2663b0803ee37225d51fb1d66c972bb59418", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26c3f2767c70dbb2b180a9ac3aed2663b0803ee37225d51fb1d66c972bb59418", kill_on_drop: false }`
[INFO] [stdout] 26c3f2767c70dbb2b180a9ac3aed2663b0803ee37225d51fb1d66c972bb59418
