[INFO] fetching crate bulbb 0.0.3...
[INFO] checking bulbb-0.0.3 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate bulbb 0.0.3 into /workspace/builds/worker-98/source
[INFO] validating manifest of crates.io crate bulbb 0.0.3 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "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-98/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "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" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/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" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2685bdc051a6bff3089cfda69f35aa818142dfabf15e8d1ce087f24afbbbb398
[INFO] running `Command { std: "docker" "start" "-a" "2685bdc051a6bff3089cfda69f35aa818142dfabf15e8d1ce087f24afbbbb398", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2685bdc051a6bff3089cfda69f35aa818142dfabf15e8d1ce087f24afbbbb398", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2685bdc051a6bff3089cfda69f35aa818142dfabf15e8d1ce087f24afbbbb398", kill_on_drop: false }`
[INFO] [stdout] 2685bdc051a6bff3089cfda69f35aa818142dfabf15e8d1ce087f24afbbbb398
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/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" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 779186901c20d6e2d1c73ba896e6a781ee5da275b67f348592903f1f5534b830
[INFO] running `Command { std: "docker" "start" "-a" "779186901c20d6e2d1c73ba896e6a781ee5da275b67f348592903f1f5534b830", 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: 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: 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: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "779186901c20d6e2d1c73ba896e6a781ee5da275b67f348592903f1f5534b830", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "779186901c20d6e2d1c73ba896e6a781ee5da275b67f348592903f1f5534b830", kill_on_drop: false }`
[INFO] [stdout] 779186901c20d6e2d1c73ba896e6a781ee5da275b67f348592903f1f5534b830