[INFO] cloning repository https://github.com/YoloDev/enet-mqtt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/YoloDev/enet-mqtt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYoloDev%2Fenet-mqtt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYoloDev%2Fenet-mqtt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fc818518abc0a08eae1fcbc4804a7c5ac330145e
[INFO] checking YoloDev/enet-mqtt against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYoloDev%2Fenet-mqtt" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-3-tc2/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-3-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/YoloDev/enet-mqtt
[INFO] finished tweaking git repo https://github.com/YoloDev/enet-mqtt
[INFO] tweaked toml for git repo https://github.com/YoloDev/enet-mqtt written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/YoloDev/enet-mqtt on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/YoloDev/enet-mqtt 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ed7459446426766f1f307d869001302c9cb5d55e958d9e647ed2a03e84522482
[INFO] running `Command { std: "docker" "start" "-a" "ed7459446426766f1f307d869001302c9cb5d55e958d9e647ed2a03e84522482", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed7459446426766f1f307d869001302c9cb5d55e958d9e647ed2a03e84522482", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed7459446426766f1f307d869001302c9cb5d55e958d9e647ed2a03e84522482", kill_on_drop: false }`
[INFO] [stdout] ed7459446426766f1f307d869001302c9cb5d55e958d9e647ed2a03e84522482
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 024c3298c7fdc11052a00f187e4d61e2ea108583964f4a5347538fc46cb22275
[INFO] running `Command { std: "docker" "start" "-a" "024c3298c7fdc11052a00f187e4d61e2ea108583964f4a5347538fc46cb22275", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.84
[INFO] [stderr]    Compiling libc v0.2.118
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]     Checking smallvec v1.7.0
[INFO] [stderr]     Checking tracing-core v0.1.22
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.1
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking lock_api v0.4.6
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]    Compiling eyre v0.6.5
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling crossbeam-utils v0.8.6
[INFO] [stderr]     Checking owo-colors v1.3.0
[INFO] [stderr]     Checking cache-padded v1.2.0
[INFO] [stderr]     Checking owo-colors v3.2.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking tracing-subscriber v0.2.25
[INFO] [stderr]     Checking object v0.27.1
[INFO] [stderr]     Checking tracing-log v0.1.2
[INFO] [stderr]     Checking mio v0.8.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]    Compiling backtrace v0.3.63
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]    Compiling paho-mqtt-sys v0.6.0
[INFO] [stderr]     Checking event-listener v2.5.2
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling openssl-sys v0.9.72
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking never v0.1.0
[INFO] [stderr]     Checking by_address v1.0.4
[INFO] [stderr]     Checking crossbeam-channel v0.5.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]     Checking matchers v0.1.0
[INFO] [stderr]    Compiling paste v1.0.6
[INFO] [stderr]    Compiling serde_test v1.0.136
[INFO] [stderr]     Checking matchit v0.4.6
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling tracing-attributes v0.1.19
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling pin-project-internal v1.0.10
[INFO] [stderr]    Compiling enum-kinds v0.5.1
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling async-stream-impl v0.3.2
[INFO] [stderr]    Compiling clap_derive v3.0.0
[INFO] [stderr]     Checking tokio v1.17.0
[INFO] [stderr]     Checking async-stream v0.3.2
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking tracing v0.1.31
[INFO] [stderr]     Checking pin-project v1.0.10
[INFO] [stderr]     Checking tracing-error v0.1.2
[INFO] [stderr]     Checking color-spantrace v0.1.6
[INFO] [stderr]     Checking color-eyre v0.5.11
[INFO] [stderr]     Checking clap v3.0.14
[INFO] [stderr]     Checking backoff v0.3.0
[INFO] [stderr]     Checking tokio-util v0.6.9
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]     Checking eventuals v0.6.6
[INFO] [stderr]     Checking paho-mqtt v0.10.0
[INFO] [stderr]     Checking tracing-serde v0.1.3
[INFO] [stderr]     Checking smol_str v0.1.21
[INFO] [stderr]     Checking tracing-subscriber v0.3.9
[INFO] [stderr]     Checking serde-aux v3.0.1
[INFO] [stderr]     Checking enet-proto v0.1.7
[INFO] [stderr]     Checking enet-client v0.2.1
[INFO] [stderr]     Checking tracing-error v0.2.0
[INFO] [stderr]     Checking color-spantrace v0.2.0
[INFO] [stderr]     Checking color-eyre v0.6.0
[INFO] [stderr]     Checking enet-mqtt v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/args.rs:26:3
[INFO] [stdout]    |
[INFO] [stdout] 26 | /   /// eNet gateway address (example: 1.1.1.1:9050).
[INFO] [stdout] 27 | |   #[clap(long = "gateway", short = 'g', env = "ENET_GATEWAY")]
[INFO] [stdout] 28 | |   pub gateway: String,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/args.rs:26:3
[INFO] [stdout]    |
[INFO] [stdout] 26 | /   /// eNet gateway address (example: 1.1.1.1:9050).
[INFO] [stdout] 27 | |   #[clap(long = "gateway", short = 'g', env = "ENET_GATEWAY")]
[INFO] [stdout] 28 | |   pub gateway: String,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/args.rs:37:3
[INFO] [stdout]    |
[INFO] [stdout] 37 | /   /// MQTT broker address (example: mosquitto.org).
[INFO] [stdout] 38 | |   #[clap(long = "mqtt-host", short = 'h', env = "ENET_MQTT_HOST")]
[INFO] [stdout] 39 | |   pub host: String,
[INFO] [stdout]    | |__________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/args.rs:37:3
[INFO] [stdout]    |
[INFO] [stdout] 37 | /   /// MQTT broker address (example: mosquitto.org).
[INFO] [stdout] 38 | |   #[clap(long = "mqtt-host", short = 'h', env = "ENET_MQTT_HOST")]
[INFO] [stdout] 39 | |   pub host: String,
[INFO] [stdout]    | |__________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/args.rs:96:3
[INFO] [stdout]    |
[INFO] [stdout] 96 | /   /// MQTT username.
[INFO] [stdout] 97 | |   #[clap(long = "mqtt-user", short = 'u', env = "ENET_MQTT_USER")]
[INFO] [stdout] 98 | |   pub username: Option<String>,
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/args.rs:100:3
[INFO] [stdout]     |
[INFO] [stdout] 100 | /   /// MQTT password.
[INFO] [stdout] 101 | |   #[clap(
[INFO] [stdout] 102 | |     long = "mqtt-pass",
[INFO] [stdout] 103 | |     short = 's',
[INFO] [stdout] ...   |
[INFO] [stdout] 107 | |   )]
[INFO] [stdout] 108 | |   pub password: Option<String>,
[INFO] [stdout]     | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/args.rs:96:3
[INFO] [stdout]    |
[INFO] [stdout] 96 | /   /// MQTT username.
[INFO] [stdout] 97 | |   #[clap(long = "mqtt-user", short = 'u', env = "ENET_MQTT_USER")]
[INFO] [stdout] 98 | |   pub username: Option<String>,
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/args.rs:100:3
[INFO] [stdout]     |
[INFO] [stdout] 100 | /   /// MQTT password.
[INFO] [stdout] 101 | |   #[clap(
[INFO] [stdout] 102 | |     long = "mqtt-pass",
[INFO] [stdout] 103 | |     short = 's',
[INFO] [stdout] ...   |
[INFO] [stdout] 107 | |   )]
[INFO] [stdout] 108 | |   pub password: Option<String>,
[INFO] [stdout]     | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `enet-mqtt` (bin "enet-mqtt" test) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `enet-mqtt` (bin "enet-mqtt") due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "024c3298c7fdc11052a00f187e4d61e2ea108583964f4a5347538fc46cb22275", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "024c3298c7fdc11052a00f187e4d61e2ea108583964f4a5347538fc46cb22275", kill_on_drop: false }`
[INFO] [stdout] 024c3298c7fdc11052a00f187e4d61e2ea108583964f4a5347538fc46cb22275