[INFO] fetching crate playback-rs 0.4.2...
[INFO] testing playback-rs-0.4.2 against 1.69.0 for beta-1.70-1
[INFO] extracting crate playback-rs 0.4.2 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate playback-rs 0.4.2 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate playback-rs 0.4.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate playback-rs 0.4.2
[INFO] tweaked toml for crates.io crate playback-rs 0.4.2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate playback-rs 0.4.2 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" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded symphonia-format-ogg v0.5.2
[INFO] [stderr]   Downloaded symphonia-core v0.5.2
[INFO] [stderr]   Downloaded symphonia-utils-xiph v0.5.2
[INFO] [stderr]   Downloaded symphonia-codec-adpcm v0.5.2
[INFO] [stderr]   Downloaded symphonia v0.5.2
[INFO] [stderr]   Downloaded symphonia-codec-pcm v0.5.2
[INFO] [stderr]   Downloaded symphonia-codec-vorbis v0.5.2
[INFO] [stderr]   Downloaded rubato v0.12.0
[INFO] [stderr]   Downloaded symphonia-codec-alac v0.5.2
[INFO] [stderr]   Downloaded symphonia-bundle-flac v0.5.2
[INFO] [stderr]   Downloaded symphonia-format-isomp4 v0.5.2
[INFO] [stderr]   Downloaded symphonia-codec-aac v0.5.2
[INFO] [stderr]   Downloaded symphonia-bundle-mp3 v0.5.2
[INFO] [stderr]   Downloaded symphonia-format-mkv v0.5.2
[INFO] [stderr]   Downloaded symphonia-format-wav v0.5.2
[INFO] [stderr]   Downloaded symphonia-metadata v0.5.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 81e9e8d56b9e25e1efdcca7929075b002ed9eac28ffeaa344504cff703be225c
[INFO] running `Command { std: "docker" "start" "-a" "81e9e8d56b9e25e1efdcca7929075b002ed9eac28ffeaa344504cff703be225c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81e9e8d56b9e25e1efdcca7929075b002ed9eac28ffeaa344504cff703be225c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81e9e8d56b9e25e1efdcca7929075b002ed9eac28ffeaa344504cff703be225c", kill_on_drop: false }`
[INFO] [stdout] 81e9e8d56b9e25e1efdcca7929075b002ed9eac28ffeaa344504cff703be225c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8fb548c030bd47ee1ff06dbb55f03f82325ed2a9653f5d74d850cf3a0395fd86
[INFO] running `Command { std: "docker" "start" "-a" "8fb548c030bd47ee1ff06dbb55f03f82325ed2a9653f5d74d850cf3a0395fd86", kill_on_drop: false }`
[INFO] [stderr]    Compiling bytemuck v1.13.0
[INFO] [stderr]    Compiling arrayvec v0.7.2
[INFO] [stderr]    Compiling encoding_rs v0.8.32
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling once_cell v1.17.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling sharded-slab v0.1.4
[INFO] [stderr]    Compiling strength_reduce v0.2.4
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]    Compiling rustfft v6.1.0
[INFO] [stderr]    Compiling backtrace v0.3.67
[INFO] [stderr]    Compiling symphonia-core v0.5.2
[INFO] [stderr]    Compiling tracing-core v0.1.30
[INFO] [stderr]    Compiling thread_local v1.1.4
[INFO] [stderr]    Compiling gimli v0.27.1
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling eyre v0.6.8
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]    Compiling miniz_oxide v0.6.2
[INFO] [stderr]    Compiling indenter v0.3.3
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling owo-colors v3.5.0
[INFO] [stderr]    Compiling cpal v0.15.0
[INFO] [stderr]    Compiling dasp_sample v0.11.0
[INFO] [stderr]    Compiling tracing v0.1.37
[INFO] [stderr]    Compiling tracing-subscriber v0.3.16
[INFO] [stderr]    Compiling object v0.30.3
[INFO] [stderr]    Compiling symphonia-metadata v0.5.2
[INFO] [stderr]    Compiling symphonia-codec-alac v0.5.2
[INFO] [stderr]    Compiling symphonia-codec-adpcm v0.5.2
[INFO] [stderr]    Compiling symphonia-codec-pcm v0.5.2
[INFO] [stderr]    Compiling symphonia-codec-aac v0.5.2
[INFO] [stderr]    Compiling num-complex v0.4.3
[INFO] [stderr]    Compiling nix v0.24.3
[INFO] [stderr]    Compiling symphonia-utils-xiph v0.5.2
[INFO] [stderr]    Compiling tracing-error v0.2.0
[INFO] [stderr]    Compiling transpose v0.2.2
[INFO] [stderr]    Compiling primal-check v0.3.3
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]    Compiling color-spantrace v0.2.0
[INFO] [stderr]    Compiling symphonia-codec-vorbis v0.5.2
[INFO] [stderr]    Compiling symphonia-format-mkv v0.5.2
[INFO] [stderr]    Compiling symphonia-format-ogg v0.5.2
[INFO] [stderr]    Compiling symphonia-format-isomp4 v0.5.2
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling symphonia-bundle-flac v0.5.2
[INFO] [stderr]    Compiling symphonia-bundle-mp3 v0.5.2
[INFO] [stderr]    Compiling alsa v0.7.0
[INFO] [stderr]    Compiling symphonia-format-wav v0.5.2
[INFO] [stderr]    Compiling addr2line v0.19.0
[INFO] [stderr]    Compiling symphonia v0.5.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.38
[INFO] [stderr]    Compiling color-eyre v0.6.2
[INFO] [stderr]    Compiling realfft v3.2.0
[INFO] [stderr]    Compiling rubato v0.12.0
[INFO] [stderr]    Compiling playback-rs v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(c_variadic)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `playback-rs` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "8fb548c030bd47ee1ff06dbb55f03f82325ed2a9653f5d74d850cf3a0395fd86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fb548c030bd47ee1ff06dbb55f03f82325ed2a9653f5d74d850cf3a0395fd86", kill_on_drop: false }`
[INFO] [stdout] 8fb548c030bd47ee1ff06dbb55f03f82325ed2a9653f5d74d850cf3a0395fd86
