[INFO] fetching crate kind-checker 0.1.3...
[INFO] documenting kind-checker-0.1.3 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate kind-checker 0.1.3 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate kind-checker 0.1.3 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kind-checker 0.1.3
[INFO] finished tweaking crates.io crate kind-checker 0.1.3
[INFO] tweaked toml for crates.io crate kind-checker 0.1.3 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded termsize v0.1.6
[INFO] [stderr]   Downloaded HOPA v0.1.2
[INFO] [stderr]   Downloaded refl v0.2.1
[INFO] [stderr]   Downloaded kind-span v0.1.3
[INFO] [stderr]   Downloaded redox_termios v0.1.3
[INFO] [stderr]   Downloaded highlight_error v0.1.1
[INFO] [stderr]   Downloaded kind-report v0.1.3
[INFO] [stderr]   Downloaded kind-tree v0.1.3
[INFO] [stderr]   Downloaded hvm v1.0.11
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a2058784e494502f94e051f634199308af91da0d1d1e3824bffaa6d710586d1
[INFO] running `Command { std: "docker" "start" "-a" "1a2058784e494502f94e051f634199308af91da0d1d1e3824bffaa6d710586d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a2058784e494502f94e051f634199308af91da0d1d1e3824bffaa6d710586d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a2058784e494502f94e051f634199308af91da0d1d1e3824bffaa6d710586d1", kill_on_drop: false }`
[INFO] [stdout] 1a2058784e494502f94e051f634199308af91da0d1d1e3824bffaa6d710586d1
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cce578341f45b39e297d3307212650557aa3971f6e6faa220db54df23f8437bd
[INFO] running `Command { std: "docker" "start" "-a" "cce578341f45b39e297d3307212650557aa3971f6e6faa220db54df23f8437bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking os_str_bytes v6.6.1
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking rayon v1.8.1
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking crossbeam-channel v0.5.11
[INFO] [stderr]     Checking crossbeam-queue v0.3.11
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking highlight_error v0.1.1
[INFO] [stderr]     Checking textwrap v0.16.0
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking HOPA v0.1.2
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking bitmaps v2.1.0
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking crossbeam v0.8.4
[INFO] [stderr]    Compiling im-rc v15.1.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking kind-span v0.1.3
[INFO] [stderr]     Checking rand_xoshiro v0.6.0
[INFO] [stderr]     Checking termsize v0.1.6
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking yansi v0.5.1
[INFO] [stderr]     Checking pathdiff v0.2.1
[INFO] [stderr]     Checking refl v0.2.1
[INFO] [stderr]     Checking kind-report v0.1.3
[INFO] [stderr]     Checking sized-chunks v0.6.5
[INFO] [stderr]     Checking sysinfo v0.29.11
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.2.25
[INFO] [stderr]     Checking clap v3.2.25
[INFO] [stderr]     Checking hvm v1.0.11
[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-6f17d22bba15001f/hvm-1.0.11/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(atomic_from_mut)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 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 `hvm` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "cce578341f45b39e297d3307212650557aa3971f6e6faa220db54df23f8437bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cce578341f45b39e297d3307212650557aa3971f6e6faa220db54df23f8437bd", kill_on_drop: false }`
[INFO] [stdout] cce578341f45b39e297d3307212650557aa3971f6e6faa220db54df23f8437bd
