[INFO] cloning repository https://github.com/intiface/intiface-engine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/intiface/intiface-engine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fintiface%2Fintiface-engine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fintiface%2Fintiface-engine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b619801a3a1c51aa24e063a7a8c6240e2ed4ec4f
[INFO] checking intiface/intiface-engine against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fintiface%2Fintiface-engine" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/intiface/intiface-engine on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/intiface/intiface-engine
[INFO] finished tweaking git repo https://github.com/intiface/intiface-engine
[INFO] tweaked toml for git repo https://github.com/intiface/intiface-engine written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/intiface/intiface-engine 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac8283cc1b3506b4896aa8c7af7b01dd765526be6f8e8519b30f142a3159369e
[INFO] running `Command { std: "docker" "start" "-a" "ac8283cc1b3506b4896aa8c7af7b01dd765526be6f8e8519b30f142a3159369e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac8283cc1b3506b4896aa8c7af7b01dd765526be6f8e8519b30f142a3159369e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac8283cc1b3506b4896aa8c7af7b01dd765526be6f8e8519b30f142a3159369e", kill_on_drop: false }`
[INFO] [stdout] ac8283cc1b3506b4896aa8c7af7b01dd765526be6f8e8519b30f142a3159369e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d8843169b4515e1708cf4392c74f762de04baf35a0007fee4ea929096416d9a4
[INFO] running `Command { std: "docker" "start" "-a" "d8843169b4515e1708cf4392c74f762de04baf35a0007fee4ea929096416d9a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.82
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[INFO] [stderr]     Checking bluez-async v0.7.2
[INFO] [stderr]    Compiling neli-proc-macros v0.1.3
[INFO] [stderr]    Compiling argh_derive v0.1.12
[INFO] [stderr]     Checking hyper-rustls v0.26.0
[INFO] [stderr]     Checking reqwest v0.12.4
[INFO] [stderr]     Checking serde-aux v4.5.0
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking jsonschema v0.18.0
[INFO] [stderr]     Checking neli v0.6.4
[INFO] [stderr]     Checking btleplug v0.11.5
[INFO] [stderr]     Checking argh v0.1.12
[INFO] [stderr]     Checking buttplug v8.0.0
[INFO] [stderr]     Checking local-ip-address v0.5.7
[INFO] [stderr]    Compiling intiface-engine v3.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/engine.rs:113:58
[INFO] [stdout]     |
[INFO] [stdout] 113 |                 ButtplugRemoteServerEvent::DeviceAdded { index, identifier, name, display_name } => {
[INFO] [stdout]     |                                                          ^^^^^ help: try ignoring the field: `index: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `identifier`
[INFO] [stdout]    --> src/engine.rs:113:65
[INFO] [stdout]     |
[INFO] [stdout] 113 |                 ButtplugRemoteServerEvent::DeviceAdded { index, identifier, name, display_name } => {
[INFO] [stdout]     |                                                                 ^^^^^^^^^^ help: try ignoring the field: `identifier: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/engine.rs:113:77
[INFO] [stdout]     |
[INFO] [stdout] 113 |                 ButtplugRemoteServerEvent::DeviceAdded { index, identifier, name, display_name } => {
[INFO] [stdout]     |                                                                             ^^^^ help: try ignoring the field: `name: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `display_name`
[INFO] [stdout]    --> src/engine.rs:113:83
[INFO] [stdout]     |
[INFO] [stdout] 113 |                 ButtplugRemoteServerEvent::DeviceAdded { index, identifier, name, display_name } => {
[INFO] [stdout]     |                                                                                   ^^^^^^^^^^^^ help: try ignoring the field: `display_name: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/engine.rs:113:58
[INFO] [stdout]     |
[INFO] [stdout] 113 |                 ButtplugRemoteServerEvent::DeviceAdded { index, identifier, name, display_name } => {
[INFO] [stdout]     |                                                          ^^^^^ help: try ignoring the field: `index: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `identifier`
[INFO] [stdout]    --> src/engine.rs:113:65
[INFO] [stdout]     |
[INFO] [stdout] 113 |                 ButtplugRemoteServerEvent::DeviceAdded { index, identifier, name, display_name } => {
[INFO] [stdout]     |                                                                 ^^^^^^^^^^ help: try ignoring the field: `identifier: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/engine.rs:113:77
[INFO] [stdout]     |
[INFO] [stdout] 113 |                 ButtplugRemoteServerEvent::DeviceAdded { index, identifier, name, display_name } => {
[INFO] [stdout]     |                                                                             ^^^^ help: try ignoring the field: `name: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `display_name`
[INFO] [stdout]    --> src/engine.rs:113:83
[INFO] [stdout]     |
[INFO] [stdout] 113 |                 ButtplugRemoteServerEvent::DeviceAdded { index, identifier, name, display_name } => {
[INFO] [stdout]     |                                                                                   ^^^^^^^^^^^^ help: try ignoring the field: `display_name: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NullFrontend` is never constructed
[INFO] [stdout]    --> src/frontend/mod.rs:113:8
[INFO] [stdout]     |
[INFO] [stdout] 113 | struct NullFrontend {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `NullFrontend` has a derived impl for the trait `Default`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/engine.rs:115:21
[INFO] [stdout]     |
[INFO] [stdout] 115 |                     fs::write(&Path::new(&config_path), config_str).await;
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 115 |                     let _ = fs::write(&Path::new(&config_path), config_str).await;
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NullFrontend` is never constructed
[INFO] [stdout]    --> src/frontend/mod.rs:113:8
[INFO] [stdout]     |
[INFO] [stdout] 113 | struct NullFrontend {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `NullFrontend` has a derived impl for the trait `Default`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/engine.rs:115:21
[INFO] [stdout]     |
[INFO] [stdout] 115 |                     fs::write(&Path::new(&config_path), config_str).await;
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 115 |                     let _ = fs::write(&Path::new(&config_path), config_str).await;
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.05s
[INFO] running `Command { std: "docker" "inspect" "d8843169b4515e1708cf4392c74f762de04baf35a0007fee4ea929096416d9a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8843169b4515e1708cf4392c74f762de04baf35a0007fee4ea929096416d9a4", kill_on_drop: false }`
[INFO] [stdout] d8843169b4515e1708cf4392c74f762de04baf35a0007fee4ea929096416d9a4