[INFO] cloning repository https://github.com/yotarok/flacenc-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yotarok/flacenc-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyotarok%2Fflacenc-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyotarok%2Fflacenc-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d98eef26aa3008f176b439bd6a63d9eda4907c46
[INFO] documenting yotarok/flacenc-rs against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyotarok%2Fflacenc-rs" "/workspace/builds/worker-32/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-32/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yotarok/flacenc-rs on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yotarok/flacenc-rs
[INFO] finished tweaking git repo https://github.com/yotarok/flacenc-rs
[INFO] tweaked toml for git repo https://github.com/yotarok/flacenc-rs written to /workspace/builds/worker-32/source/Cargo.toml
[INFO] crate git repo https://github.com/yotarok/flacenc-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded atomic-polyfill v0.1.8
[INFO] [stderr]   Downloaded critical-section v0.2.7
[INFO] [stderr]   Downloaded nalgebra v0.31.0
[INFO] [stderr]   Downloaded seq-macro v0.3.0
[INFO] [stderr]   Downloaded heapless v0.7.10
[INFO] [stderr]   Downloaded parameterized-macro v1.0.0
[INFO] [stderr]   Downloaded parameterized v1.0.0
[INFO] [stderr]   Downloaded sndfile-sys v0.2.2
[INFO] [stderr]   Downloaded sndfile v0.0.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 29fe0b42cd147cec1ac696097afeaedf5e33486528df2fea0b7f91eafa4f8260
[INFO] running `Command { std: "docker" "start" "-a" "29fe0b42cd147cec1ac696097afeaedf5e33486528df2fea0b7f91eafa4f8260", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "29fe0b42cd147cec1ac696097afeaedf5e33486528df2fea0b7f91eafa4f8260", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29fe0b42cd147cec1ac696097afeaedf5e33486528df2fea0b7f91eafa4f8260", kill_on_drop: false }`
[INFO] [stdout] 29fe0b42cd147cec1ac696097afeaedf5e33486528df2fea0b7f91eafa4f8260
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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" "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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fbdf0849f71bd3ca66733d097e7285273056c71a219f6716d08adef99a7dc79a
[INFO] running `Command { std: "docker" "start" "-a" "fbdf0849f71bd3ca66733d097e7285273056c71a219f6716d08adef99a7dc79a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]     Checking bytemuck v1.9.1
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling heapless v0.7.10
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling paste v1.0.7
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]     Checking funty v2.0.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling seq-macro v0.3.0
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking matrixmultiply v0.3.2
[INFO] [stderr]     Checking wyz v0.5.0
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]     Checking safe_arch v0.6.0
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]     Checking wide v0.7.4
[INFO] [stderr]     Checking bitvec v1.0.0
[INFO] [stderr]    Compiling sndfile-sys v0.2.2
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking spin v0.9.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking sndfile v0.0.4
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking num-complex v0.4.1
[INFO] [stderr]     Checking simba v0.7.1
[INFO] [stderr]    Compiling clap_derive v3.1.7
[INFO] [stderr]    Compiling nalgebra-macros v0.1.0
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]     Checking clap v3.1.8
[INFO] [stderr]     Checking nalgebra v0.31.0
[INFO] [stderr]     Checking toml v0.5.9
[INFO] [stderr]  Documenting flacenc-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | #![feature(portable_simd)]
[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 document `flacenc-rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name flacenc_rs src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=77f89b02eccb1e75 -L dependency=/opt/rustwide/target/debug/deps --extern bitvec=/opt/rustwide/target/debug/deps/libbitvec-001440c47445c5fe.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-36adfc18b9e7b5a9.rmeta --extern crc=/opt/rustwide/target/debug/deps/libcrc-35284258d2b8b3e2.rmeta --extern derive_more=/opt/rustwide/target/debug/deps/libderive_more-4bf5a45f54789991.so --extern heapless=/opt/rustwide/target/debug/deps/libheapless-fe3c7e5686f60e32.rmeta --extern md5=/opt/rustwide/target/debug/deps/libmd5-05cdc6da942a1386.rmeta --extern nalgebra=/opt/rustwide/target/debug/deps/libnalgebra-267fce19b99263f9.rmeta --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-e14ab7d5dc83d37b.rmeta --extern seq_macro=/opt/rustwide/target/debug/deps/libseq_macro-445b6cd63a2b8614.so --extern serde=/opt/rustwide/target/debug/deps/libserde-d61e0c26c9b68239.rmeta --extern sndfile=/opt/rustwide/target/debug/deps/libsndfile-4586cfdeba014159.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-b6aa73aea167cb53.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "fbdf0849f71bd3ca66733d097e7285273056c71a219f6716d08adef99a7dc79a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbdf0849f71bd3ca66733d097e7285273056c71a219f6716d08adef99a7dc79a", kill_on_drop: false }`
[INFO] [stdout] fbdf0849f71bd3ca66733d097e7285273056c71a219f6716d08adef99a7dc79a