[INFO] fetching crate alsa 0.9.1...
[INFO] checking alsa-0.9.1 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate alsa 0.9.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate alsa 0.9.1 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate alsa 0.9.1
[INFO] finished tweaking crates.io crate alsa 0.9.1
[INFO] tweaked toml for crates.io crate alsa 0.9.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate alsa 0.9.1 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "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-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a91bc6351a71024964a7f4cc9e92f859f2db0ce66fd31bce9b104f7a6ec861d7
[INFO] running `Command { std: "docker" "start" "-a" "a91bc6351a71024964a7f4cc9e92f859f2db0ce66fd31bce9b104f7a6ec861d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a91bc6351a71024964a7f4cc9e92f859f2db0ce66fd31bce9b104f7a6ec861d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a91bc6351a71024964a7f4cc9e92f859f2db0ce66fd31bce9b104f7a6ec861d7", kill_on_drop: false }`
[INFO] [stdout] a91bc6351a71024964a7f4cc9e92f859f2db0ce66fd31bce9b104f7a6ec861d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe85d8974614864b29e3e35c8b08f912717a47432194abd69a145cb9d7c17591
[INFO] running `Command { std: "docker" "start" "-a" "fe85d8974614864b29e3e35c8b08f912717a47432194abd69a145cb9d7c17591", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]     Checking bitflags v2.4.0
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]     Checking alsa v0.9.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/hctl.rs:113:21
[INFO] [stdout]     |
[INFO] [stdout] 113 | pub struct Elem<'a>(&'a HCtl, *mut alsa::snd_hctl_elem_t);
[INFO] [stdout]     |            ----     ^^^^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 113 | pub struct Elem<'a>((), *mut alsa::snd_hctl_elem_t);
[INFO] [stdout]     |                     ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/hctl.rs:113:21
[INFO] [stdout]     |
[INFO] [stdout] 113 | pub struct Elem<'a>(&'a HCtl, *mut alsa::snd_hctl_elem_t);
[INFO] [stdout]     |            ----     ^^^^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 113 | pub struct Elem<'a>((), *mut alsa::snd_hctl_elem_t);
[INFO] [stdout]     |                     ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.31s
[INFO] running `Command { std: "docker" "inspect" "fe85d8974614864b29e3e35c8b08f912717a47432194abd69a145cb9d7c17591", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe85d8974614864b29e3e35c8b08f912717a47432194abd69a145cb9d7c17591", kill_on_drop: false }`
[INFO] [stdout] fe85d8974614864b29e3e35c8b08f912717a47432194abd69a145cb9d7c17591