[INFO] fetching crate fundamentum-sdk-mqtt 0.1.2...
[INFO] checking fundamentum-sdk-mqtt-0.1.2 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate fundamentum-sdk-mqtt 0.1.2 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate fundamentum-sdk-mqtt 0.1.2 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fundamentum-sdk-mqtt 0.1.2
[INFO] finished tweaking crates.io crate fundamentum-sdk-mqtt 0.1.2
[INFO] tweaked toml for crates.io crate fundamentum-sdk-mqtt 0.1.2 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate fundamentum-sdk-mqtt 0.1.2 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rsa v0.9.2
[INFO] [stderr]   Downloaded rustls-webpki v0.100.3
[INFO] [stderr]   Downloaded rumqttc v0.22.0
[INFO] [stderr]   Downloaded sysinfo v0.16.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a60b1b555b73176eeee1d7b0862370d2aef661561776d109a14a0fc6b3fb73b
[INFO] running `Command { std: "docker" "start" "-a" "4a60b1b555b73176eeee1d7b0862370d2aef661561776d109a14a0fc6b3fb73b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a60b1b555b73176eeee1d7b0862370d2aef661561776d109a14a0fc6b3fb73b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a60b1b555b73176eeee1d7b0862370d2aef661561776d109a14a0fc6b3fb73b", kill_on_drop: false }`
[INFO] [stdout] 4a60b1b555b73176eeee1d7b0862370d2aef661561776d109a14a0fc6b3fb73b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5b11cf8fc8b5440ad4b43f67c150578aab5d98770d6d449aea529a21e7aac4a
[INFO] running `Command { std: "docker" "start" "-a" "c5b11cf8fc8b5440ad4b43f67c150578aab5d98770d6d449aea529a21e7aac4a", kill_on_drop: false }`
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[INFO] [stderr]    Compiling darling_macro v0.14.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.49
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling pin-project-internal v1.1.3
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.189
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[INFO] [stderr]    Compiling derive_builder_core v0.12.0
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[INFO] [stderr]    Compiling derive_builder_macro v0.12.0
[INFO] [stderr]     Checking simple_asn1 v0.6.2
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[INFO] [stderr]     Checking tokio-rustls v0.24.1
[INFO] [stderr]     Checking rumqttc v0.22.0
[INFO] [stderr]     Checking jsonwebtoken v8.3.0
[INFO] [stderr]     Checking fundamentum-sdk-mqtt v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `rumqttc` is imported redundantly
[INFO] [stdout]  --> src/client.rs:7:15
[INFO] [stdout]   |
[INFO] [stdout] 7 | use rumqttc::{self, Event, LastWill, MqttOptions, QoS, TlsConfiguration, Transport};
[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: the item `rumqttc` is imported redundantly
[INFO] [stdout]  --> src/client.rs:7:15
[INFO] [stdout]   |
[INFO] [stdout] 7 | use rumqttc::{self, Event, LastWill, MqttOptions, QoS, TlsConfiguration, Transport};
[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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.64s
[INFO] running `Command { std: "docker" "inspect" "c5b11cf8fc8b5440ad4b43f67c150578aab5d98770d6d449aea529a21e7aac4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5b11cf8fc8b5440ad4b43f67c150578aab5d98770d6d449aea529a21e7aac4a", kill_on_drop: false }`
[INFO] [stdout] c5b11cf8fc8b5440ad4b43f67c150578aab5d98770d6d449aea529a21e7aac4a