[INFO] fetching crate homie-device 0.9.0...
[INFO] checking homie-device-0.9.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate homie-device 0.9.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate homie-device 0.9.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate homie-device 0.9.0
[INFO] finished tweaking crates.io crate homie-device 0.9.0
[INFO] tweaked toml for crates.io crate homie-device 0.9.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate homie-device 0.9.0 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thiserror v1.0.47
[INFO] [stderr]   Downloaded thiserror-impl v1.0.47
[INFO] [stderr]   Downloaded pin-project-lite v0.2.12
[INFO] [stderr]   Downloaded local_ipaddress v0.1.3
[INFO] [stderr]   Downloaded mac_address v1.1.5
[INFO] [stderr]   Downloaded is-terminal v0.4.8
[INFO] [stderr]   Downloaded rustls-webpki v0.100.1
[INFO] [stderr]   Downloaded rustls-webpki v0.101.2
[INFO] [stderr]   Downloaded nix v0.23.2
[INFO] [stderr]   Downloaded rustix v0.38.2
[INFO] [stderr]   Downloaded regex v1.8.4
[INFO] [stderr]   Downloaded rumqttc v0.22.0
[INFO] [stderr]   Downloaded hermit-abi v0.3.1
[INFO] [stderr]   Downloaded socket2 v0.5.3
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2c8292c915087a5436e554d35838116a821602a2ac9fd09b6f960bf306983bcb
[INFO] running `Command { std: "docker" "start" "-a" "2c8292c915087a5436e554d35838116a821602a2ac9fd09b6f960bf306983bcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c8292c915087a5436e554d35838116a821602a2ac9fd09b6f960bf306983bcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c8292c915087a5436e554d35838116a821602a2ac9fd09b6f960bf306983bcb", kill_on_drop: false }`
[INFO] [stdout] 2c8292c915087a5436e554d35838116a821602a2ac9fd09b6f960bf306983bcb
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ddf0a209d0314f05fc196d3e2cd63b94f4fb3b939daefb32e737d463076ba775
[INFO] running `Command { std: "docker" "start" "-a" "ddf0a209d0314f05fc196d3e2cd63b94f4fb3b939daefb32e737d463076ba775", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]     Checking pin-project-lite v0.2.12
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling syn v2.0.28
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]    Compiling rustls v0.21.7
[INFO] [stderr]    Compiling rustix v0.38.2
[INFO] [stderr]     Checking socket2 v0.5.3
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]    Compiling thiserror v1.0.47
[INFO] [stderr]     Checking base64 v0.21.2
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]     Checking regex-syntax v0.7.2
[INFO] [stderr]     Checking rustls-pemfile v1.0.3
[INFO] [stderr]     Checking nix v0.23.2
[INFO] [stderr]     Checking rustls-native-certs v0.6.3
[INFO] [stderr]     Checking local_ipaddress v0.1.3
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking is-terminal v0.4.8
[INFO] [stderr]     Checking regex v1.8.4
[INFO] [stderr]     Checking env_logger v0.10.0
[INFO] [stderr]     Checking pretty_env_logger v0.5.0
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling pin-project-internal v1.1.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.47
[INFO] [stderr]     Checking mac_address v1.1.5
[INFO] [stderr]     Checking tokio v1.32.0
[INFO] [stderr]     Checking rustls-webpki v0.101.2
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]     Checking rustls-webpki v0.100.1
[INFO] [stderr]     Checking pin-project v1.1.2
[INFO] [stderr]     Checking flume v0.10.14
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking tokio-rustls v0.24.1
[INFO] [stderr]     Checking rumqttc v0.22.0
[INFO] [stderr]     Checking homie-device v0.9.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `rumqttc` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     self, AsyncClient, ClientError, ConnectionError, Event, EventLoop, Incoming, LastWill,
[INFO] [stdout]    |     ^^^^ the item `rumqttc` is already defined by prelude
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 32.41s
[INFO] running `Command { std: "docker" "inspect" "ddf0a209d0314f05fc196d3e2cd63b94f4fb3b939daefb32e737d463076ba775", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddf0a209d0314f05fc196d3e2cd63b94f4fb3b939daefb32e737d463076ba775", kill_on_drop: false }`
[INFO] [stdout] ddf0a209d0314f05fc196d3e2cd63b94f4fb3b939daefb32e737d463076ba775