[INFO] fetching crate xsynth-realtime 0.4.0...
[INFO] checking xsynth-realtime-0.4.0 against 1.95.0 for pr-155915
[INFO] extracting crate xsynth-realtime 0.4.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate xsynth-realtime 0.4.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate xsynth-realtime 0.4.0
[INFO] tweaked toml for crates.io crate xsynth-realtime 0.4.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate xsynth-realtime 0.4.0 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate xsynth-realtime 0.4.0 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rubato v0.15.0
[INFO] [stderr]   Downloaded spin_sleep v1.3.3
[INFO] [stderr]   Downloaded midi-toolkit-rs-derive v0.1.0
[INFO] [stderr]   Downloaded to_vec v0.1.0
[INFO] [stderr]   Downloaded soundfont v0.1.0
[INFO] [stderr]   Downloaded regex-bnf-macro v0.1.1
[INFO] [stderr]   Downloaded xsynth-soundfonts v0.4.0
[INFO] [stderr]   Downloaded regex-bnf v0.1.2
[INFO] [stderr]   Downloaded atomic_refcell v0.1.13
[INFO] [stderr]   Downloaded biquad v0.4.2
[INFO] [stderr]   Downloaded midi-toolkit-rs v0.1.0
[INFO] [stderr]   Downloaded xsynth-core v0.4.0
[INFO] [stderr]   Downloaded toml_edit v0.25.10+spec-1.1.0
[INFO] [stderr]   Downloaded simdeez v3.0.1
[INFO] [stderr]   Downloaded cbindgen v0.26.0
[INFO] [stderr]   Downloaded wav v1.0.1
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bd12dfab2f1153b60d42f472d3f64965b69a62591c2cb3121912ef0149ab1a32
[INFO] running `Command { std: "docker" "start" "-a" "bd12dfab2f1153b60d42f472d3f64965b69a62591c2cb3121912ef0149ab1a32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd12dfab2f1153b60d42f472d3f64965b69a62591c2cb3121912ef0149ab1a32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd12dfab2f1153b60d42f472d3f64965b69a62591c2cb3121912ef0149ab1a32", kill_on_drop: false }`
[INFO] [stdout] bd12dfab2f1153b60d42f472d3f64965b69a62591c2cb3121912ef0149ab1a32
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de33ed6aa5c07b0267c1489173437ae25c21f370dd161167e2146bcadeb21087
[INFO] running `Command { std: "docker" "start" "-a" "de33ed6aa5c07b0267c1489173437ae25c21f370dd161167e2146bcadeb21087", kill_on_drop: false }`
[INFO] [stderr]     Checking bytemuck v1.25.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking strength_reduce v0.2.4
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling libm v0.1.4
[INFO] [stderr]     Checking extended v0.1.0
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking alsa-sys v0.3.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking encoding_rs_io v0.1.7
[INFO] [stderr]     Checking simdeez v3.0.1
[INFO] [stderr]     Checking rayon v1.11.0
[INFO] [stderr]     Checking soundfont v0.1.0
[INFO] [stderr]     Checking riff v1.0.1
[INFO] [stderr]     Checking atomic_refcell v0.1.13
[INFO] [stderr]     Checking spin_sleep v1.3.3
[INFO] [stderr]     Checking to_vec v0.1.0
[INFO] [stderr]     Checking symphonia-core v0.5.5
[INFO] [stderr]     Checking wav v1.0.1
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking primal-check v0.3.4
[INFO] [stderr]     Checking transpose v0.2.3
[INFO] [stderr]     Checking alsa v0.9.1
[INFO] [stderr]     Checking biquad v0.4.2
[INFO] [stderr]     Checking rustfft v6.4.1
[INFO] [stderr]     Checking symphonia-metadata v0.5.5
[INFO] [stderr]     Checking symphonia-codec-pcm v0.5.5
[INFO] [stderr]     Checking symphonia-codec-adpcm v0.5.5
[INFO] [stderr]     Checking symphonia-utils-xiph v0.5.5
[INFO] [stderr]     Checking symphonia-format-riff v0.5.5
[INFO] [stderr]     Checking symphonia-format-mkv v0.5.5
[INFO] [stderr]     Checking symphonia-format-ogg v0.5.5
[INFO] [stderr]     Checking symphonia-bundle-flac v0.5.5
[INFO] [stderr]     Checking symphonia-codec-vorbis v0.5.5
[INFO] [stderr]     Checking symphonia v0.5.5
[INFO] [stderr]     Checking cpal v0.15.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling lazy-regex-proc_macros v3.6.0
[INFO] [stderr]     Checking lazy-regex v3.6.0
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]    Compiling regex-bnf-macro v0.1.1
[INFO] [stderr]    Compiling midi-toolkit-rs-derive v0.1.0
[INFO] [stderr]     Checking regex-bnf v0.1.2
[INFO] [stderr]     Checking midi-toolkit-rs v0.1.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/midi-toolkit-rs-0.1.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(coroutines)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking realfft v3.5.0
[INFO] [stderr]     Checking rubato v0.15.0
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `midi-toolkit-rs` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "de33ed6aa5c07b0267c1489173437ae25c21f370dd161167e2146bcadeb21087", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de33ed6aa5c07b0267c1489173437ae25c21f370dd161167e2146bcadeb21087", kill_on_drop: false }`
[INFO] [stdout] de33ed6aa5c07b0267c1489173437ae25c21f370dd161167e2146bcadeb21087