[INFO] fetching crate docktor 0.35.2...
[INFO] checking docktor-0.35.2 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate docktor 0.35.2 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate docktor 0.35.2 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 docktor 0.35.2
[INFO] finished tweaking crates.io crate docktor 0.35.2
[INFO] tweaked toml for crates.io crate docktor 0.35.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate docktor 0.35.2 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-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] a2120913120665f8e63e0c54fc38be7beb55ba001c07be748297a913e218c6f0
[INFO] running `Command { std: "docker" "start" "-a" "a2120913120665f8e63e0c54fc38be7beb55ba001c07be748297a913e218c6f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2120913120665f8e63e0c54fc38be7beb55ba001c07be748297a913e218c6f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2120913120665f8e63e0c54fc38be7beb55ba001c07be748297a913e218c6f0", kill_on_drop: false }`
[INFO] [stdout] a2120913120665f8e63e0c54fc38be7beb55ba001c07be748297a913e218c6f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 901d0748ee6aa86d61dd3b019ed5801f9e733822aec14c39bf5951e581b4b32c
[INFO] running `Command { std: "docker" "start" "-a" "901d0748ee6aa86d61dd3b019ed5801f9e733822aec14c39bf5951e581b4b32c", kill_on_drop: false }`
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[INFO] [stderr]     Checking docktor-api-client v0.35.2
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[INFO] [stderr]     Checking docktor v0.35.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `default_url`
[INFO] [stdout]    --> src/server/prometheus.rs:132:13
[INFO] [stdout]     |
[INFO] [stdout] 132 |         let default_url = "metrics".to_string();
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default_url`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `default_url`
[INFO] [stdout]    --> src/server/prometheus.rs:132:13
[INFO] [stdout]     |
[INFO] [stdout] 132 |         let default_url = "metrics".to_string();
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default_url`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 43.05s
[INFO] running `Command { std: "docker" "inspect" "901d0748ee6aa86d61dd3b019ed5801f9e733822aec14c39bf5951e581b4b32c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "901d0748ee6aa86d61dd3b019ed5801f9e733822aec14c39bf5951e581b4b32c", kill_on_drop: false }`
[INFO] [stdout] 901d0748ee6aa86d61dd3b019ed5801f9e733822aec14c39bf5951e581b4b32c