[INFO] fetching crate for-mqtt-client 0.3.5...
[INFO] checking for-mqtt-client-0.3.5 against master#b03864d546c9ded43242265abd4089e887ccc72e for pr-114740
[INFO] extracting crate for-mqtt-client 0.3.5 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate for-mqtt-client 0.3.5 on toolchain b03864d546c9ded43242265abd4089e887ccc72e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b03864d546c9ded43242265abd4089e887ccc72e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate for-mqtt-client 0.3.5
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate for-mqtt-client 0.3.5
[INFO] tweaked toml for crates.io crate for-mqtt-client 0.3.5 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate for-mqtt-client 0.3.5 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" "+b03864d546c9ded43242265abd4089e887ccc72e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded for-event-bus-derive v0.1.1
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[INFO] [stderr]   Downloaded serde v1.0.180
[INFO] [stderr]   Downloaded flexi_logger v0.24.2
[INFO] [stderr]   Downloaded serde_derive v1.0.180
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:84cb280c7acaf12c1f874411053406050a24f846e52f817d4d9e64bcbe5ce959" "/opt/rustwide/cargo-home/bin/cargo" "+b03864d546c9ded43242265abd4089e887ccc72e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bbfb991442cb65d09cc6f5cd4aef0e1951372ea3fe50164d9b4f63b19e3867f8
[INFO] running `Command { std: "docker" "start" "-a" "bbfb991442cb65d09cc6f5cd4aef0e1951372ea3fe50164d9b4f63b19e3867f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bbfb991442cb65d09cc6f5cd4aef0e1951372ea3fe50164d9b4f63b19e3867f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbfb991442cb65d09cc6f5cd4aef0e1951372ea3fe50164d9b4f63b19e3867f8", kill_on_drop: false }`
[INFO] [stdout] bbfb991442cb65d09cc6f5cd4aef0e1951372ea3fe50164d9b4f63b19e3867f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:84cb280c7acaf12c1f874411053406050a24f846e52f817d4d9e64bcbe5ce959" "/opt/rustwide/cargo-home/bin/cargo" "+b03864d546c9ded43242265abd4089e887ccc72e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19bcc6f1657a8307d9c81eb9667920f2402d03a8512d337df605c364d538d0e3
[INFO] running `Command { std: "docker" "start" "-a" "19bcc6f1657a8307d9c81eb9667920f2402d03a8512d337df605c364d538d0e3", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `Info`
[INFO] [stdout]  --> examples/v5_client.rs:5:26
[INFO] [stdout]   |
[INFO] [stdout] 5 |     LevelFilter::{Debug, Info},
[INFO] [stdout]   |                          ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `io::Read`
[INFO] [stdout]  --> examples/v3_rustls.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::{io::Read, time::Duration};
[INFO] [stdout]   |           ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` 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 [unoptimized + debuginfo] target(s) in 14.27s
[INFO] running `Command { std: "docker" "inspect" "19bcc6f1657a8307d9c81eb9667920f2402d03a8512d337df605c364d538d0e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19bcc6f1657a8307d9c81eb9667920f2402d03a8512d337df605c364d538d0e3", kill_on_drop: false }`
[INFO] [stdout] 19bcc6f1657a8307d9c81eb9667920f2402d03a8512d337df605c364d538d0e3