[INFO] fetching crate bulbb 0.0.3...
[INFO] checking bulbb-0.0.3 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate bulbb 0.0.3 into /workspace/builds/worker-39/source
[INFO] validating manifest of crates.io crate bulbb 0.0.3 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bulbb 0.0.3
[INFO] finished tweaking crates.io crate bulbb 0.0.3
[INFO] tweaked toml for crates.io crate bulbb 0.0.3 written to /workspace/builds/worker-39/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded zvariant_derive v2.10.0
[INFO] [stderr]   Downloaded zbus_macros v1.9.2
[INFO] [stderr]   Downloaded nb-connect v1.2.0
[INFO] [stderr]   Downloaded zvariant v2.10.0
[INFO] [stderr]   Downloaded zbus v1.9.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 16e632251f150d4aafc3c32081b56609bfd2cddeb719d4c7d0cba99881690ccf
[INFO] running `Command { std: "docker" "start" "-a" "16e632251f150d4aafc3c32081b56609bfd2cddeb719d4c7d0cba99881690ccf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16e632251f150d4aafc3c32081b56609bfd2cddeb719d4c7d0cba99881690ccf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16e632251f150d4aafc3c32081b56609bfd2cddeb719d4c7d0cba99881690ccf", kill_on_drop: false }`
[INFO] [stdout] 16e632251f150d4aafc3c32081b56609bfd2cddeb719d4c7d0cba99881690ccf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea4b1b2aeeb7a28906e82debcdeebfd158f57c7519ccf1f594f552f43354456f
[INFO] running `Command { std: "docker" "start" "-a" "ea4b1b2aeeb7a28906e82debcdeebfd158f57c7519ccf1f594f552f43354456f", kill_on_drop: false }`
[INFO] [stderr]     Checking bulbb v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `format_monitor_device`
[INFO] [stdout]   --> src/utils/linux.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub fn format_monitor_device(bl: MonitorDevice) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_color`
[INFO] [stdout]   --> src/misc/linux.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn with_color(&'a mut self, color: LedColor) -> &'a mut LedFilterable {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_function`
[INFO] [stdout]   --> src/misc/linux.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn with_function(&'a mut self, function: LedFunction) -> &'a mut LedFilterable {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `format_led_device`
[INFO] [stdout]   --> src/utils/linux.rs:85:8
[INFO] [stdout]    |
[INFO] [stdout] 85 | pub fn format_led_device(led: LedDevice) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/misc/linux.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn new() -> LedFilterable<'a> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_device_name`
[INFO] [stdout]   --> src/misc/linux.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn with_device_name(&'a mut self, device_name: &'a str) -> &'a mut LedFilterable {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_color`
[INFO] [stdout]   --> src/misc/linux.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn with_color(&'a mut self, color: LedColor) -> &'a mut LedFilterable {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_function`
[INFO] [stdout]   --> src/misc/linux.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn with_function(&'a mut self, function: LedFunction) -> &'a mut LedFilterable {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `finish`
[INFO] [stdout]   --> src/misc/linux.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn finish(&'a mut self) -> LedFilterable {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.88s
[INFO] running `Command { std: "docker" "inspect" "ea4b1b2aeeb7a28906e82debcdeebfd158f57c7519ccf1f594f552f43354456f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea4b1b2aeeb7a28906e82debcdeebfd158f57c7519ccf1f594f552f43354456f", kill_on_drop: false }`
[INFO] [stdout] ea4b1b2aeeb7a28906e82debcdeebfd158f57c7519ccf1f594f552f43354456f