[INFO] cloning repository https://github.com/de-vri-es/rtl433-doorbell
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/de-vri-es/rtl433-doorbell" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fde-vri-es%2Frtl433-doorbell", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fde-vri-es%2Frtl433-doorbell'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 93faf9226fd27278b9f84de6215f024c0e16ac9e
[INFO] checking de-vri-es/rtl433-doorbell 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%2Fde-vri-es%2Frtl433-doorbell" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/de-vri-es/rtl433-doorbell
[INFO] finished tweaking git repo https://github.com/de-vri-es/rtl433-doorbell
[INFO] tweaked toml for git repo https://github.com/de-vri-es/rtl433-doorbell written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/de-vri-es/rtl433-doorbell 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/de-vri-es/rtl433-doorbell 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] a7f0f84ff225737b33b64cb7081fcb1ea08185ebad3df4af1bedc7d331560201
[INFO] running `Command { std: "docker" "start" "-a" "a7f0f84ff225737b33b64cb7081fcb1ea08185ebad3df4af1bedc7d331560201", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7f0f84ff225737b33b64cb7081fcb1ea08185ebad3df4af1bedc7d331560201", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7f0f84ff225737b33b64cb7081fcb1ea08185ebad3df4af1bedc7d331560201", kill_on_drop: false }`
[INFO] [stdout] a7f0f84ff225737b33b64cb7081fcb1ea08185ebad3df4af1bedc7d331560201
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 824da711d09e28e8f960d2f398e709ab375c118bb94ee6ea298f197ce7ae9fec
[INFO] running `Command { std: "docker" "start" "-a" "824da711d09e28e8f960d2f398e709ab375c118bb94ee6ea298f197ce7ae9fec", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling serde v1.0.204
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]     Checking unicode-width v0.1.13
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]    Compiling serde_json v1.0.120
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking bytes v1.6.1
[INFO] [stderr]    Compiling syn v2.0.72
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking socket2 v0.5.7
[INFO] [stderr]     Checking mio v1.0.1
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking tokio v1.39.1
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling serde_derive v1.0.204
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking rtl433-doorbell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/server.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     Socket(SocketAddr),
[INFO] [stdout]    |     ------ ^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Source` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 28 -     Socket(SocketAddr),
[INFO] [stdout] 28 +     Socket(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/server.rs:33:11
[INFO] [stdout]    |
[INFO] [stdout] 33 |     DingDong(Source),
[INFO] [stdout]    |     -------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Message` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 33 -     DingDong(Source),
[INFO] [stdout] 33 +     DingDong(()),
[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/main.rs:24:2
[INFO] [stdout]    |
[INFO] [stdout] 24 | /     /// The command to run when a message is received.
[INFO] [stdout] 25 | |     #[structopt(value_name = "COMMAND")]
[INFO] [stdout] 26 | |     #[structopt(required = true)]
[INFO] [stdout] 27 | |     action: 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/main.rs:29:2
[INFO] [stdout]    |
[INFO] [stdout] 29 | /     /// Arguments to the command.
[INFO] [stdout] 30 | |     #[structopt(value_name = "ARGS")]
[INFO] [stdout] 31 | |     args: Vec<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/main.rs:46:2
[INFO] [stdout]    |
[INFO] [stdout] 46 | /     /// The command to run the rtl_433 tool.
[INFO] [stdout] 47 | |     #[structopt(long)]
[INFO] [stdout] 48 | |     #[structopt(default_value = "rtl_433")]
[INFO] [stdout] 49 | |     #[structopt(value_name = "COMMAND")]
[INFO] [stdout] 50 | |     rtl433_bin: 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/main.rs:52:2
[INFO] [stdout]    |
[INFO] [stdout] 52 | /     /// The device for rtl_433 to connect to.
[INFO] [stdout] 53 | |     #[structopt(long)]
[INFO] [stdout] 54 | |     #[structopt(value_name = "DEVICE")]
[INFO] [stdout] 55 | |     device: Option<String>,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rtl433-doorbell` (bin "rtl433-doorbell") due to 4 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/server.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     Socket(SocketAddr),
[INFO] [stdout]    |     ------ ^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Source` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 28 -     Socket(SocketAddr),
[INFO] [stdout] 28 +     Socket(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/server.rs:33:11
[INFO] [stdout]    |
[INFO] [stdout] 33 |     DingDong(Source),
[INFO] [stdout]    |     -------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Message` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 33 -     DingDong(Source),
[INFO] [stdout] 33 +     DingDong(()),
[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/main.rs:24:2
[INFO] [stdout]    |
[INFO] [stdout] 24 | /     /// The command to run when a message is received.
[INFO] [stdout] 25 | |     #[structopt(value_name = "COMMAND")]
[INFO] [stdout] 26 | |     #[structopt(required = true)]
[INFO] [stdout] 27 | |     action: 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/main.rs:29:2
[INFO] [stdout]    |
[INFO] [stdout] 29 | /     /// Arguments to the command.
[INFO] [stdout] 30 | |     #[structopt(value_name = "ARGS")]
[INFO] [stdout] 31 | |     args: Vec<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/main.rs:46:2
[INFO] [stdout]    |
[INFO] [stdout] 46 | /     /// The command to run the rtl_433 tool.
[INFO] [stdout] 47 | |     #[structopt(long)]
[INFO] [stdout] 48 | |     #[structopt(default_value = "rtl_433")]
[INFO] [stdout] 49 | |     #[structopt(value_name = "COMMAND")]
[INFO] [stdout] 50 | |     rtl433_bin: 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/main.rs:52:2
[INFO] [stdout]    |
[INFO] [stdout] 52 | /     /// The device for rtl_433 to connect to.
[INFO] [stdout] 53 | |     #[structopt(long)]
[INFO] [stdout] 54 | |     #[structopt(value_name = "DEVICE")]
[INFO] [stdout] 55 | |     device: Option<String>,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rtl433-doorbell` (bin "rtl433-doorbell" test) due to 4 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "824da711d09e28e8f960d2f398e709ab375c118bb94ee6ea298f197ce7ae9fec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "824da711d09e28e8f960d2f398e709ab375c118bb94ee6ea298f197ce7ae9fec", kill_on_drop: false }`
[INFO] [stdout] 824da711d09e28e8f960d2f398e709ab375c118bb94ee6ea298f197ce7ae9fec