[INFO] fetching crate audio-processor-analysis 2.1.0...
[INFO] checking audio-processor-analysis-2.1.0 against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-4
[INFO] extracting crate audio-processor-analysis 2.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate audio-processor-analysis 2.1.0 on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate audio-processor-analysis 2.1.0
[INFO] finished tweaking crates.io crate audio-processor-analysis 2.1.0
[INFO] tweaked toml for crates.io crate audio-processor-analysis 2.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate audio-processor-analysis 2.1.0 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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wisual-logger v0.1.4
[INFO] [stderr]   Downloaded pangocairo v0.14.0
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.93
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[INFO] [stderr]   Downloaded symphonia-core v0.5.2
[INFO] [stderr]   Downloaded audio-processor-file v3.1.0
[INFO] [stderr]   Downloaded font-kit v0.10.1
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[INFO] [stderr]   Downloaded augmented_oscillator v1.3.0
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[INFO] [stderr]   Downloaded audio-processor-traits v4.1.0
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[INFO] [stderr]   Downloaded augmented-atomics v0.2.0
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[INFO] [stderr]   Downloaded piet-common v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4fab4a68f56981e4731ca93f5fa678b8f5b3ffd7ad778865f61c06ac1b20af15
[INFO] running `Command { std: "docker" "start" "-a" "4fab4a68f56981e4731ca93f5fa678b8f5b3ffd7ad778865f61c06ac1b20af15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4fab4a68f56981e4731ca93f5fa678b8f5b3ffd7ad778865f61c06ac1b20af15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fab4a68f56981e4731ca93f5fa678b8f5b3ffd7ad778865f61c06ac1b20af15", kill_on_drop: false }`
[INFO] [stdout] 4fab4a68f56981e4731ca93f5fa678b8f5b3ffd7ad778865f61c06ac1b20af15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 37c862fe167a51dbcaf6bd17358775ddaa37d81e156b4ad1d9220e33d152b09c
[INFO] running `Command { std: "docker" "start" "-a" "37c862fe167a51dbcaf6bd17358775ddaa37d81e156b4ad1d9220e33d152b09c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.53
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling anyhow v1.0.70
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling strum v0.21.0
[INFO] [stderr]    Compiling version-compare v0.0.11
[INFO] [stderr]     Checking bytemuck v1.13.1
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]    Compiling futures-core v0.3.27
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling cfg-expr v0.8.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking symphonia-core v0.5.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.53/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking encoding_rs v0.8.32
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling ucd-trie v0.1.5
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "37c862fe167a51dbcaf6bd17358775ddaa37d81e156b4ad1d9220e33d152b09c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37c862fe167a51dbcaf6bd17358775ddaa37d81e156b4ad1d9220e33d152b09c", kill_on_drop: false }`
[INFO] [stdout] 37c862fe167a51dbcaf6bd17358775ddaa37d81e156b4ad1d9220e33d152b09c