[INFO] fetching crate xsynth-core 0.3.4...
[INFO] testing xsynth-core-0.3.4 against 1.91.0 for beta-1.92-2
[INFO] extracting crate xsynth-core 0.3.4 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate xsynth-core 0.3.4
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate xsynth-core 0.3.4
[INFO] tweaked toml for crates.io crate xsynth-core 0.3.4 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate xsynth-core 0.3.4 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate xsynth-core 0.3.4 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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded xsynth-soundfonts v0.3.4
[INFO] [stderr]   Downloaded symphonia-codec-pcm v0.5.4
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[INFO] [stderr]   Downloaded half v1.8.2
[INFO] [stderr]   Downloaded bumpalo v3.12.1
[INFO] [stderr]   Downloaded serde v1.0.209
[INFO] [stderr]   Downloaded libm v0.1.4
[INFO] [stderr]   Downloaded plotters v0.3.4
[INFO] [stderr]   Downloaded clap_builder v4.5.15
[INFO] [stderr]   Downloaded memchr v2.6.4
[INFO] [stderr]   Downloaded symphonia-core v0.5.4
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[INFO] [stderr]   Downloaded syn v2.0.72
[INFO] [stderr]   Downloaded ryu v1.0.13
[INFO] [stderr]   Downloaded regex v1.10.2
[INFO] [stderr]   Downloaded midi-toolkit-rs v0.1.0
[INFO] [stderr]   Downloaded serde_derive v1.0.209
[INFO] [stderr]   Downloaded rustfft v6.2.0
[INFO] [stderr]   Downloaded bytemuck v1.16.3
[INFO] [stderr]   Downloaded num-traits v0.2.15
[INFO] [stderr]   Downloaded encoding_rs_io v0.1.7
[INFO] [stderr]   Downloaded once_cell v1.17.1
[INFO] [stderr]   Downloaded getrandom v0.2.9
[INFO] [stderr]   Downloaded symphonia-bundle-flac v0.5.4
[INFO] [stderr]   Downloaded symphonia-codec-vorbis v0.5.4
[INFO] [stderr]   Downloaded symphonia-format-ogg v0.5.4
[INFO] [stderr]   Downloaded lazy-regex v3.2.0
[INFO] [stderr]   Downloaded plotters-backend v0.3.4
[INFO] [stderr]   Downloaded symphonia-format-riff v0.5.4
[INFO] [stderr]   Downloaded strength_reduce v0.2.4
[INFO] [stderr]   Downloaded hermit-abi v0.3.1
[INFO] [stderr]   Downloaded spin_sleep v1.2.1
[INFO] [stderr]   Downloaded symphonia-codec-adpcm v0.5.4
[INFO] [stderr]   Downloaded lazy-regex-proc_macros v3.2.0
[INFO] [stderr]   Downloaded regex-automata v0.4.3
[INFO] [stderr]   Downloaded rubato v0.15.0
[INFO] [stderr]   Downloaded unicode-ident v1.0.8
[INFO] [stderr]   Downloaded primal-check v0.3.3
[INFO] [stderr]   Downloaded web-sys v0.3.61
[INFO] [stderr]   Downloaded libc v0.2.149
[INFO] [stderr]   Downloaded num-complex v0.4.5
[INFO] [stderr]   Downloaded transpose v0.2.3
[INFO] [stderr]   Downloaded extended v0.1.0
[INFO] [stderr]   Downloaded regex-bnf-macro v0.1.1
[INFO] [stderr]   Downloaded paste v1.0.12
[INFO] [stderr]   Downloaded simdeez v2.0.0-dev3
[INFO] [stderr]   Downloaded either v1.8.1
[INFO] [stderr]   Downloaded symphonia-metadata v0.5.4
[INFO] [stderr]   Downloaded soundfont v0.1.0
[INFO] [stderr]   Downloaded midi-toolkit-rs-derive v0.1.0
[INFO] [stderr]   Downloaded encoding_rs v0.8.34
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c79d36ccff764237970d26c8f15b27a0f92ff10bc87a52a633c95b97dfb0d788
[INFO] running `Command { std: "docker" "start" "-a" "c79d36ccff764237970d26c8f15b27a0f92ff10bc87a52a633c95b97dfb0d788", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c79d36ccff764237970d26c8f15b27a0f92ff10bc87a52a633c95b97dfb0d788", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c79d36ccff764237970d26c8f15b27a0f92ff10bc87a52a633c95b97dfb0d788", kill_on_drop: false }`
[INFO] [stdout] c79d36ccff764237970d26c8f15b27a0f92ff10bc87a52a633c95b97dfb0d788
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd1984ce4e73ca27dc47faeeed314b30f1548876fb5988360d0e069577e5a186
[INFO] running `Command { std: "docker" "start" "-a" "dd1984ce4e73ca27dc47faeeed314b30f1548876fb5988360d0e069577e5a186", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling arrayvec v0.7.2
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling bytemuck v1.16.3
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling encoding_rs v0.8.34
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling strength_reduce v0.2.4
[INFO] [stderr]    Compiling paste v1.0.12
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling rustfft v6.2.0
[INFO] [stderr]    Compiling thiserror v1.0.63
[INFO] [stderr]    Compiling libm v0.1.4
[INFO] [stderr]    Compiling extended v0.1.0
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling soundfont v0.1.0
[INFO] [stderr]    Compiling atomic_refcell v0.1.13
[INFO] [stderr]    Compiling spin_sleep v1.2.1
[INFO] [stderr]    Compiling symphonia-core v0.5.4
[INFO] [stderr]    Compiling to_vec v0.1.0
[INFO] [stderr]    Compiling aho-corasick v1.0.1
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling simdeez v2.0.0-dev3
[INFO] [stderr]    Compiling biquad v0.4.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling crossbeam-channel v0.5.13
[INFO] [stderr]    Compiling syn v2.0.72
[INFO] [stderr]    Compiling crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-complex v0.4.5
[INFO] [stderr]    Compiling symphonia-codec-pcm v0.5.4
[INFO] [stderr]    Compiling symphonia-codec-adpcm v0.5.4
[INFO] [stderr]    Compiling symphonia-metadata v0.5.4
[INFO] [stderr]    Compiling encoding_rs_io v0.1.7
[INFO] [stderr]    Compiling primal-check v0.3.3
[INFO] [stderr]    Compiling transpose v0.2.3
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling symphonia-utils-xiph v0.5.4
[INFO] [stderr]    Compiling symphonia-format-riff v0.5.4
[INFO] [stderr]    Compiling symphonia-format-mkv v0.5.4
[INFO] [stderr]    Compiling symphonia-codec-vorbis v0.5.4
[INFO] [stderr]    Compiling symphonia-format-ogg v0.5.4
[INFO] [stderr]    Compiling symphonia-bundle-flac v0.5.4
[INFO] [stderr]    Compiling regex-bnf-macro v0.1.1
[INFO] [stderr]    Compiling regex-automata v0.4.3
[INFO] [stderr]    Compiling symphonia v0.5.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.63
[INFO] [stderr]    Compiling regex v1.10.2
[INFO] [stderr]    Compiling regex-bnf v0.1.2
[INFO] [stderr]    Compiling realfft v3.3.0
[INFO] [stderr]    Compiling rubato v0.15.0
[INFO] [stderr]    Compiling lazy-regex-proc_macros v3.2.0
[INFO] [stderr]    Compiling lazy-regex v3.2.0
[INFO] [stderr]    Compiling xsynth-soundfonts v0.3.4
[INFO] [stderr]    Compiling xsynth-core v0.3.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.04s
[INFO] running `Command { std: "docker" "inspect" "dd1984ce4e73ca27dc47faeeed314b30f1548876fb5988360d0e069577e5a186", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd1984ce4e73ca27dc47faeeed314b30f1548876fb5988360d0e069577e5a186", kill_on_drop: false }`
[INFO] [stdout] dd1984ce4e73ca27dc47faeeed314b30f1548876fb5988360d0e069577e5a186
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fbb70cfb653896004fa1cd509a32d67bc2ec3e3846942d403073989ed524628e
[INFO] running `Command { std: "docker" "start" "-a" "fbb70cfb653896004fa1cd509a32d67bc2ec3e3846942d403073989ed524628e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling serde v1.0.209
[INFO] [stderr]    Compiling serde_derive v1.0.209
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling serde_json v1.0.127
[INFO] [stderr]    Compiling plotters-backend v0.3.4
[INFO] [stderr]    Compiling ryu v1.0.13
[INFO] [stderr]    Compiling itoa v1.0.6
[INFO] [stderr]    Compiling half v1.8.2
[INFO] [stderr]    Compiling clap_lex v0.7.2
[INFO] [stderr]    Compiling ciborium-io v0.2.0
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling walkdir v2.3.3
[INFO] [stderr]    Compiling plotters-svg v0.3.3
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling clap_builder v4.5.15
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling plotters v0.3.4
[INFO] [stderr]    Compiling ciborium-ll v0.2.0
[INFO] [stderr]    Compiling getrandom v0.2.9
[INFO] [stderr]    Compiling is-terminal v0.4.12
[INFO] [stderr]    Compiling midi-toolkit-rs-derive v0.1.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling criterion-plot v0.5.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling clap v4.5.16
[INFO] [stderr]    Compiling midi-toolkit-rs v0.1.0
[INFO] [stderr]    Compiling xsynth-core v0.3.4 (/opt/rustwide/workdir)
[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] [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:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(coroutine_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(associated_type_defaults)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(type_alias_impl_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(impl_trait_in_assoc_type)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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 5 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "fbb70cfb653896004fa1cd509a32d67bc2ec3e3846942d403073989ed524628e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbb70cfb653896004fa1cd509a32d67bc2ec3e3846942d403073989ed524628e", kill_on_drop: false }`
[INFO] [stdout] fbb70cfb653896004fa1cd509a32d67bc2ec3e3846942d403073989ed524628e
