[INFO] fetching crate mqtt-ping 0.3.0...
[INFO] checking mqtt-ping-0.3.0 against 1.95.0 for pr-155915
[INFO] extracting crate mqtt-ping 0.3.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate mqtt-ping 0.3.0
[INFO] finished tweaking crates.io crate mqtt-ping 0.3.0
[INFO] tweaked toml for crates.io crate mqtt-ping 0.3.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mqtt-ping 0.3.0 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mqtt-ping 0.3.0 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" "+1.95.0" "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-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 54f346d0c4674b2f391d03698fb78aa62efde0dfe40eb131c3e17346b1176b33
[INFO] running `Command { std: "docker" "start" "-a" "54f346d0c4674b2f391d03698fb78aa62efde0dfe40eb131c3e17346b1176b33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "54f346d0c4674b2f391d03698fb78aa62efde0dfe40eb131c3e17346b1176b33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54f346d0c4674b2f391d03698fb78aa62efde0dfe40eb131c3e17346b1176b33", kill_on_drop: false }`
[INFO] [stdout] 54f346d0c4674b2f391d03698fb78aa62efde0dfe40eb131c3e17346b1176b33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d7283b81dcf8cb0028b64775e976bab409abab2a2066ef35d3a71fcee1f5ead3
[INFO] running `Command { std: "docker" "start" "-a" "d7283b81dcf8cb0028b64775e976bab409abab2a2066ef35d3a71fcee1f5ead3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.135
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[INFO] [stderr]     Checking bytes v1.2.1
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[INFO] [stderr]     Checking idna v0.3.0
[INFO] [stderr]     Checking indicatif v0.17.1
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[INFO] [stderr]    Compiling proc-macro-error v1.0.4
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[INFO] [stderr]     Checking async-tungstenite v0.16.1
[INFO] [stderr]     Checking rumqttc v0.17.0
[INFO] [stderr]     Checking mqtt-ping v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rand::Rng`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use rand::Rng;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::Rng`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use rand::Rng;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:276:9
[INFO] [stdout]     |
[INFO] [stdout] 276 |     let mut pb = ProgressBar::new(matches.pings as _);
[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] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:276:9
[INFO] [stdout]     |
[INFO] [stdout] 276 |     let mut pb = ProgressBar::new(matches.pings as _);
[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 25.24s
[INFO] running `Command { std: "docker" "inspect" "d7283b81dcf8cb0028b64775e976bab409abab2a2066ef35d3a71fcee1f5ead3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7283b81dcf8cb0028b64775e976bab409abab2a2066ef35d3a71fcee1f5ead3", kill_on_drop: false }`
[INFO] [stdout] d7283b81dcf8cb0028b64775e976bab409abab2a2066ef35d3a71fcee1f5ead3
