[INFO] cloning repository https://github.com/eric-wood/wm8731
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/eric-wood/wm8731" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feric-wood%2Fwm8731", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feric-wood%2Fwm8731'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7397b1562956e2950bff42dcc8b41b92c4bdf028
[INFO] checking eric-wood/wm8731/7397b1562956e2950bff42dcc8b41b92c4bdf028 against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feric-wood%2Fwm8731" "/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/eric-wood/wm8731 on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/eric-wood/wm8731
[INFO] finished tweaking git repo https://github.com/eric-wood/wm8731
[INFO] tweaked toml for git repo https://github.com/eric-wood/wm8731 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 90d7314b94e4f28a684f6e6bddb40e821202f22b26ade53f7b41b3af807cd8d7
[INFO] running `Command { std: "docker" "start" "-a" "90d7314b94e4f28a684f6e6bddb40e821202f22b26ade53f7b41b3af807cd8d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "90d7314b94e4f28a684f6e6bddb40e821202f22b26ade53f7b41b3af807cd8d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90d7314b94e4f28a684f6e6bddb40e821202f22b26ade53f7b41b3af807cd8d7", kill_on_drop: false }`
[INFO] [stdout] 90d7314b94e4f28a684f6e6bddb40e821202f22b26ade53f7b41b3af807cd8d7
[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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 156b5c176dc8572d138541621b96e1012968adfdabe1ccd9742a3ba2aa955e6e
[INFO] running `Command { std: "docker" "start" "-a" "156b5c176dc8572d138541621b96e1012968adfdabe1ccd9742a3ba2aa955e6e", kill_on_drop: false }`
[INFO] [stderr]     Checking wm8731 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `volume`
[INFO] [stdout]   --> src/headphone_out.rs:24:30
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn volume(&mut self, volume: u16) {
[INFO] [stdout]    |                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_volume`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `dac_mut` found for mutable reference `&mut DigitalAudioPath` in the current scope
[INFO] [stdout]   --> src/tests.rs:79:11
[INFO] [stdout]    |
[INFO] [stdout] 79 |         w.dac_mut();
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `dac_mute` with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 79 |         w.dac_mute();
[INFO] [stdout]    |           ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `volume`
[INFO] [stdout]   --> src/headphone_out.rs:24:30
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn volume(&mut self, volume: u16) {
[INFO] [stdout]    |                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_volume`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wm8731` (lib test) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "156b5c176dc8572d138541621b96e1012968adfdabe1ccd9742a3ba2aa955e6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "156b5c176dc8572d138541621b96e1012968adfdabe1ccd9742a3ba2aa955e6e", kill_on_drop: false }`
[INFO] [stdout] 156b5c176dc8572d138541621b96e1012968adfdabe1ccd9742a3ba2aa955e6e