[INFO] fetching crate synfx-dsp-jit 0.6.1...
[INFO] documenting synfx-dsp-jit-0.6.1 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate synfx-dsp-jit 0.6.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate synfx-dsp-jit 0.6.1 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 synfx-dsp-jit 0.6.1
[INFO] finished tweaking crates.io crate synfx-dsp-jit 0.6.1
[INFO] tweaked toml for crates.io crate synfx-dsp-jit 0.6.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate synfx-dsp-jit 0.6.1 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" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cranelift-codegen-shared v0.86.1
[INFO] [stderr]   Downloaded cranelift-module v0.86.1
[INFO] [stderr]   Downloaded cranelift v0.86.1
[INFO] [stderr]   Downloaded cranelift-frontend v0.86.1
[INFO] [stderr]   Downloaded target-lexicon v0.12.5
[INFO] [stderr]   Downloaded synfx-dsp v0.5.5
[INFO] [stderr]   Downloaded cranelift-isle v0.86.1
[INFO] [stderr]   Downloaded cranelift-jit v0.86.1
[INFO] [stderr]   Downloaded cranelift-codegen-meta v0.86.1
[INFO] [stderr]   Downloaded cranelift-native v0.86.1
[INFO] [stderr]   Downloaded cranelift-bforest v0.86.1
[INFO] [stderr]   Downloaded cranelift-entity v0.86.1
[INFO] [stderr]   Downloaded cranelift-codegen v0.86.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] b3f100636ca625a0f63f8799b4fb4d4924b33359678d9d8b4cdf3add8f5e6157
[INFO] running `Command { std: "docker" "start" "-a" "b3f100636ca625a0f63f8799b4fb4d4924b33359678d9d8b4cdf3add8f5e6157", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b3f100636ca625a0f63f8799b4fb4d4924b33359678d9d8b4cdf3add8f5e6157", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3f100636ca625a0f63f8799b4fb4d4924b33359678d9d8b4cdf3add8f5e6157", kill_on_drop: false }`
[INFO] [stdout] b3f100636ca625a0f63f8799b4fb4d4924b33359678d9d8b4cdf3add8f5e6157
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] af7b72c99c73a01edc18fbd34b78678d9b3d548306587d4b953dc2ae928a42fd
[INFO] running `Command { std: "docker" "start" "-a" "af7b72c99c73a01edc18fbd34b78678d9b3d548306587d4b953dc2ae928a42fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling cranelift-isle v0.86.1
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.86.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling target-lexicon v0.12.5
[INFO] [stderr]     Checking slice-group-by v0.3.0
[INFO] [stderr]     Checking cranelift-entity v0.86.1
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling anyhow v1.0.66
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking cache-padded v1.2.0
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.86.1
[INFO] [stderr]     Checking ringbuf v0.2.8
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking cranelift-bforest v0.86.1
[INFO] [stderr]     Checking regalloc2 v0.3.2
[INFO] [stderr]     Checking gimli v0.26.2
[INFO] [stderr]     Checking region v2.2.0
[INFO] [stderr]     Checking synfx-dsp v0.5.5
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/synfx-dsp-0.5.5/src/lib.rs:228:12
[INFO] [stdout]     |
[INFO] [stdout] 228 | #![feature(portable_simd)]
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling cranelift-codegen v0.86.1
[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 `synfx-dsp` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "af7b72c99c73a01edc18fbd34b78678d9b3d548306587d4b953dc2ae928a42fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af7b72c99c73a01edc18fbd34b78678d9b3d548306587d4b953dc2ae928a42fd", kill_on_drop: false }`
[INFO] [stdout] af7b72c99c73a01edc18fbd34b78678d9b3d548306587d4b953dc2ae928a42fd
