[INFO] cloning repository https://github.com/zenria/co2-meter-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zenria/co2-meter-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzenria%2Fco2-meter-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzenria%2Fco2-meter-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 690fdf33ba6e600f6f04535f9fce27041e0b1cb2
[INFO] checking zenria/co2-meter-rs 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%2Fzenria%2Fco2-meter-rs" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/zenria/co2-meter-rs
[INFO] finished tweaking git repo https://github.com/zenria/co2-meter-rs
[INFO] tweaked toml for git repo https://github.com/zenria/co2-meter-rs written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/zenria/co2-meter-rs 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/zenria/co2-meter-rs 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] ac9a06a72c13ac75b8fd1c5923d226324c6fe18bdb9d2f1ce85ae854fbc5f091
[INFO] running `Command { std: "docker" "start" "-a" "ac9a06a72c13ac75b8fd1c5923d226324c6fe18bdb9d2f1ce85ae854fbc5f091", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac9a06a72c13ac75b8fd1c5923d226324c6fe18bdb9d2f1ce85ae854fbc5f091", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac9a06a72c13ac75b8fd1c5923d226324c6fe18bdb9d2f1ce85ae854fbc5f091", kill_on_drop: false }`
[INFO] [stdout] ac9a06a72c13ac75b8fd1c5923d226324c6fe18bdb9d2f1ce85ae854fbc5f091
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 420a58c6436385a6749a180b106ea6fb5f30e39e0d7d2469b85f92d8bcc17a18
[INFO] running `Command { std: "docker" "start" "-a" "420a58c6436385a6749a180b106ea6fb5f30e39e0d7d2469b85f92d8bcc17a18", kill_on_drop: false }`
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[INFO] [stderr]     Checking serialport v3.2.0 (https://github.com/zenria/serialport-rs.git?branch=3.2.0-hacked_for_rbpi#48330bb4)
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling derive_more v0.13.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking tokio-rustls v0.9.4
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[INFO] [stderr]     Checking structopt v0.3.25
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[INFO] [stderr]     Checking rumqtt v0.31.0
[INFO] [stderr]     Checking co2-meter v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `env_logger::Env`
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use env_logger::Env;
[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: `env_logger::Env`
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use env_logger::Env;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | /     #[structopt(short = "b", long = "bind-address", default_value = "0.0.0.0:9090")]
[INFO] [stdout] 35 | |     bind_address: 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<String, Infallible>
[INFO] [stdout]   --> src/main.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 | /     /// The serial port name or device path (eg: /dev/ttyS0 or COM3)
[INFO] [stdout] 45 | |     #[structopt(name = "serial_port")]
[INFO] [stdout] 46 | |     serial_port: String,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 | /     #[structopt(long = "mqtt-host", default_value = "mosquitto")]
[INFO] [stdout] 50 | |     mqtt_host: String,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | /     #[structopt(long = "mqtt-base-topic", default_value = "co2-meter/dev")]
[INFO] [stdout] 52 | |     mqtt_base_topic: String,
[INFO] [stdout]    | |___________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `co2-meter` (bin "co2-meter") due to 4 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | /     #[structopt(short = "b", long = "bind-address", default_value = "0.0.0.0:9090")]
[INFO] [stdout] 35 | |     bind_address: 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<String, Infallible>
[INFO] [stdout]   --> src/main.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 | /     /// The serial port name or device path (eg: /dev/ttyS0 or COM3)
[INFO] [stdout] 45 | |     #[structopt(name = "serial_port")]
[INFO] [stdout] 46 | |     serial_port: String,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 | /     #[structopt(long = "mqtt-host", default_value = "mosquitto")]
[INFO] [stdout] 50 | |     mqtt_host: String,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | /     #[structopt(long = "mqtt-base-topic", default_value = "co2-meter/dev")]
[INFO] [stdout] 52 | |     mqtt_base_topic: String,
[INFO] [stdout]    | |___________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `co2-meter` (bin "co2-meter" test) due to 4 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "420a58c6436385a6749a180b106ea6fb5f30e39e0d7d2469b85f92d8bcc17a18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "420a58c6436385a6749a180b106ea6fb5f30e39e0d7d2469b85f92d8bcc17a18", kill_on_drop: false }`
[INFO] [stdout] 420a58c6436385a6749a180b106ea6fb5f30e39e0d7d2469b85f92d8bcc17a18
