[INFO] cloning repository https://github.com/hoverkite/hoverkite
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hoverkite/hoverkite" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhoverkite%2Fhoverkite", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhoverkite%2Fhoverkite'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 873ead594c0dc5e7eab3f79e2cfa67060ba1035f
[INFO] checking hoverkite/hoverkite against master#50e1dc1536264ab71c0850f346b12309477f29f7 for pr-85073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhoverkite%2Fhoverkite" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hoverkite/hoverkite on toolchain 50e1dc1536264ab71c0850f346b12309477f29f7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hoverkite/hoverkite
[INFO] finished tweaking git repo https://github.com/hoverkite/hoverkite
[INFO] tweaked toml for git repo https://github.com/hoverkite/hoverkite written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/hoverkite/hoverkite already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c36f8e91278a825453c90bd6f871820d1785b60be591681dbdfd33dd62f671f3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c36f8e91278a825453c90bd6f871820d1785b60be591681dbdfd33dd62f671f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c36f8e91278a825453c90bd6f871820d1785b60be591681dbdfd33dd62f671f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c36f8e91278a825453c90bd6f871820d1785b60be591681dbdfd33dd62f671f3", kill_on_drop: false }`
[INFO] [stdout] c36f8e91278a825453c90bd6f871820d1785b60be591681dbdfd33dd62f671f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7313d6dff319356a7550f3dc2308061256b6e7547e652a43e0df1e67c1fc31d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c7313d6dff319356a7550f3dc2308061256b6e7547e652a43e0df1e67c1fc31d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking gimli v0.24.0
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]     Checking object v0.24.0
[INFO] [stderr]     Checking rustc-demangle v0.1.19
[INFO] [stderr]    Compiling eyre v0.6.5
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]    Compiling nix v0.16.1
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking embedded-hal v0.2.5
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling test-case v1.1.0
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling backtrace v0.3.59
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking libudev v0.2.0
[INFO] [stderr]     Checking addr2line v0.15.1
[INFO] [stderr]     Checking stable-eyre v0.2.2
[INFO] [stderr]     Checking color-backtrace v0.5.1
[INFO] [stderr]     Checking serialport v4.0.1
[INFO] [stderr]     Checking gilrs-core v0.3.1
[INFO] [stderr]     Checking gilrs v0.8.1
[INFO] [stderr]    Compiling displaydoc v0.2.1
[INFO] [stderr]     Checking messages v0.1.0 (/opt/rustwide/workdir/messages)
[INFO] [stderr]     Checking hovercontrol v0.1.0 (/opt/rustwide/workdir/hovercontrol)
[INFO] [stdout] warning: associated function is never used: `set_buzzer_frequency`
[INFO] [stdout]   --> hovercontrol/src/hoverkite.rs:87:12
[INFO] [stdout]    |
[INFO] [stdout] 87 |     pub fn set_buzzer_frequency(&mut self, frequency: Option<u32>) -> Result<(), eyre::Report> {
[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: `play_notes`
[INFO] [stdout]   --> hovercontrol/src/hoverkite.rs:93:12
[INFO] [stdout]    |
[INFO] [stdout] 93 |     pub fn play_notes(&mut self, notes: &[Note]) -> Result<(), eyre::Report> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_buzzer_frequency`
[INFO] [stdout]   --> hovercontrol/src/hoverkite.rs:87:12
[INFO] [stdout]    |
[INFO] [stdout] 87 |     pub fn set_buzzer_frequency(&mut self, frequency: Option<u32>) -> Result<(), eyre::Report> {
[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: `play_notes`
[INFO] [stdout]   --> hovercontrol/src/hoverkite.rs:93:12
[INFO] [stdout]    |
[INFO] [stdout] 93 |     pub fn play_notes(&mut self, notes: &[Note]) -> Result<(), eyre::Report> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 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 35.32s
[INFO] running `Command { std: "docker" "inspect" "c7313d6dff319356a7550f3dc2308061256b6e7547e652a43e0df1e67c1fc31d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7313d6dff319356a7550f3dc2308061256b6e7547e652a43e0df1e67c1fc31d", kill_on_drop: false }`
[INFO] [stdout] c7313d6dff319356a7550f3dc2308061256b6e7547e652a43e0df1e67c1fc31d