[INFO] cloning repository https://github.com/pta2002/rs-tuner
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pta2002/rs-tuner" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpta2002%2Frs-tuner", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpta2002%2Frs-tuner'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1d70be2e1ae2a78857d52096a16f11fd0bbf0f2e
[INFO] checking pta2002/rs-tuner against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpta2002%2Frs-tuner" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pta2002/rs-tuner on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pta2002/rs-tuner
[INFO] finished tweaking git repo https://github.com/pta2002/rs-tuner
[INFO] tweaked toml for git repo https://github.com/pta2002/rs-tuner written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/pta2002/rs-tuner 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libpulse-sys v1.13.0
[INFO] [stderr]   Downloaded libpulse-simple-sys v1.13.0
[INFO] [stderr]   Downloaded jack v0.6.2
[INFO] [stderr]   Downloaded libpulse-simple-binding v2.16.0
[INFO] [stderr]   Downloaded libloading v0.4.3
[INFO] [stderr]   Downloaded jack-sys v0.2.0
[INFO] [stderr]   Downloaded aubio-rs v0.1.3
[INFO] [stderr]   Downloaded aubio-sys v0.1.3
[INFO] [stderr]   Downloaded crossbeam-channel v0.4.2
[INFO] [stderr]   Downloaded cc v1.0.53
[INFO] [stderr]   Downloaded libc v0.2.69
[INFO] [stderr]   Downloaded libpulse-binding v2.16.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8705d0016d17c52427de74b275bf6e81f1341f538d22e81ae0d537c6e0d7430c
[INFO] running `Command { std: "docker" "start" "-a" "8705d0016d17c52427de74b275bf6e81f1341f538d22e81ae0d537c6e0d7430c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8705d0016d17c52427de74b275bf6e81f1341f538d22e81ae0d537c6e0d7430c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8705d0016d17c52427de74b275bf6e81f1341f538d22e81ae0d537c6e0d7430c", kill_on_drop: false }`
[INFO] [stdout] 8705d0016d17c52427de74b275bf6e81f1341f538d22e81ae0d537c6e0d7430c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 56cb3355ce2486aeb88d5a38e058f2b0e42e763b24e59d574534537b985f4fea
[INFO] running `Command { std: "docker" "start" "-a" "56cb3355ce2486aeb88d5a38e058f2b0e42e763b24e59d574534537b985f4fea", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling libloading v0.4.3
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling libpulse-sys v1.13.0
[INFO] [stderr]    Compiling aubio-sys v0.1.3
[INFO] [stderr]    Compiling libpulse-simple-sys v1.13.0
[INFO] [stderr]     Checking aubio-rs v0.1.3
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]     Checking jack-sys v0.2.0
[INFO] [stderr]     Checking jack v0.6.2
[INFO] [stderr]     Checking libpulse-binding v2.16.0
[INFO] [stderr]     Checking libpulse-simple-binding v2.16.0
[INFO] [stderr]     Checking ctrlc v3.1.4
[INFO] [stderr]     Checking tuners v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `base` is never read
[INFO] [stdout]   --> src/note.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct AbsNote {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 17 |     base: f32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AbsNote` has a derived impl for the trait `Debug`, 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: variant `BgColor` is never constructed
[INFO] [stdout]  --> src/ui/escape.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub enum EscapeCode {
[INFO] [stdout]   |          ---------- variant in this enum
[INFO] [stdout] 7 |     FgColor(Color),
[INFO] [stdout] 8 |     BgColor(Color),
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Black`, `Blue`, `Magenta`, `Cyan`, `White`, and `Other` are never constructed
[INFO] [stdout]   --> src/ui/escape.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub enum Color {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] 29 |     Black,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     Blue,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 34 |     Magenta,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 35 |     Cyan,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 36 |     White,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 37 |     Other(u8),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Color` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `bg` is never used
[INFO] [stdout]   --> src/ui/escape.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 58 | impl Color {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 63 |     pub fn bg(self) -> EscapeCode {
[INFO] [stdout]    |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `base` is never read
[INFO] [stdout]   --> src/note.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct AbsNote {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 17 |     base: f32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AbsNote` has a derived impl for the trait `Debug`, 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: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `BgColor` is never constructed
[INFO] [stdout]  --> src/ui/escape.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub enum EscapeCode {
[INFO] [stdout]   |          ---------- variant in this enum
[INFO] [stdout] 7 |     FgColor(Color),
[INFO] [stdout] 8 |     BgColor(Color),
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Black`, `Blue`, `Magenta`, `Cyan`, `White`, and `Other` are never constructed
[INFO] [stdout]   --> src/ui/escape.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub enum Color {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] 29 |     Black,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     Blue,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 34 |     Magenta,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 35 |     Cyan,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 36 |     White,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 37 |     Other(u8),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Color` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `bg` is never used
[INFO] [stdout]   --> src/ui/escape.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 58 | impl Color {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 63 |     pub fn bg(self) -> EscapeCode {
[INFO] [stdout]    |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.37s
[INFO] running `Command { std: "docker" "inspect" "56cb3355ce2486aeb88d5a38e058f2b0e42e763b24e59d574534537b985f4fea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56cb3355ce2486aeb88d5a38e058f2b0e42e763b24e59d574534537b985f4fea", kill_on_drop: false }`
[INFO] [stdout] 56cb3355ce2486aeb88d5a38e058f2b0e42e763b24e59d574534537b985f4fea