[INFO] cloning repository https://github.com/Henrik-N/penguin-engine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Henrik-N/penguin-engine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHenrik-N%2Fpenguin-engine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHenrik-N%2Fpenguin-engine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8996ba981a737fcacd405ee8fd06a7c06488a67d
[INFO] documenting Henrik-N/penguin-engine 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%2FHenrik-N%2Fpenguin-engine" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Henrik-N/penguin-engine 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/Henrik-N/penguin-engine
[INFO] finished tweaking git repo https://github.com/Henrik-N/penguin-engine
[INFO] tweaked toml for git repo https://github.com/Henrik-N/penguin-engine written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/Henrik-N/penguin-engine 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]  Downloading crates ...
[INFO] [stderr]   Downloaded raw-window-handle v0.3.4
[INFO] [stderr]   Downloaded proc-macro2 v1.0.34
[INFO] [stderr]   Downloaded colored v1.9.3
[INFO] [stderr]   Downloaded fern v0.5.9
[INFO] [stderr]   Downloaded backtrace v0.3.63
[INFO] [stderr]   Downloaded libloading v0.7.2
[INFO] [stderr]   Downloaded raw-window-metal v0.1.2
[INFO] [stderr]   Downloaded ash-window v0.7.0
[INFO] [stderr]   Downloaded macaw v0.15.0
[INFO] [stderr]   Downloaded glam v0.18.0
[INFO] [stderr]   Downloaded shaderc v0.7.3
[INFO] [stderr]   Downloaded wavefront v0.2.2
[INFO] [stderr]   Downloaded stb v0.3.2
[INFO] [stderr]   Downloaded ash v0.33.3+1.2.191
[INFO] [stderr]   Downloaded stb-sys v0.6.0
[INFO] [stderr]   Downloaded libc v0.2.112
[INFO] [stderr]   Downloaded penguin-config-derive v0.1.1
[INFO] [stderr]   Downloaded penguin-application v0.1.1
[INFO] [stderr]   Downloaded penguin-config v0.1.1
[INFO] [stderr]   Downloaded shaderc-sys v0.7.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 446f1e8afac6c3e9954f96273f8fe7da3fe8cc8dff9123efdac6c028608d85b4
[INFO] running `Command { std: "docker" "start" "-a" "446f1e8afac6c3e9954f96273f8fe7da3fe8cc8dff9123efdac6c028608d85b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "446f1e8afac6c3e9954f96273f8fe7da3fe8cc8dff9123efdac6c028608d85b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "446f1e8afac6c3e9954f96273f8fe7da3fe8cc8dff9123efdac6c028608d85b4", kill_on_drop: false }`
[INFO] [stdout] 446f1e8afac6c3e9954f96273f8fe7da3fe8cc8dff9123efdac6c028608d85b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 38a336d393f8dcf6f5a1cde3d89349fc4088e031e457ce0d71f4fa2aa053e018
[INFO] running `Command { std: "docker" "start" "-a" "38a336d393f8dcf6f5a1cde3d89349fc4088e031e457ce0d71f4fa2aa053e018", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling proc-macro2 v1.0.34
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling serde_derive v1.0.131
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]    Compiling serde v1.0.131
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling bindgen v0.54.0
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]    Compiling erased-serde v0.3.16
[INFO] [stderr]    Compiling serde_json v1.0.73
[INFO] [stderr]    Compiling anyhow v1.0.51
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking atomic_refcell v0.1.8
[INFO] [stderr]     Checking ahash v0.4.7
[INFO] [stderr]    Compiling paste v1.0.6
[INFO] [stderr]     Checking scoped-tls-hkt v0.1.2
[INFO] [stderr]     Checking glam v0.18.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling clang-sys v0.29.3
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling backtrace v0.3.63
[INFO] [stderr]    Compiling cmake v0.1.46
[INFO] [stderr]     Checking dlib v0.4.2
[INFO] [stderr]     Checking ash v0.33.3+1.2.191
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]     Checking wayland-sys v0.23.6
[INFO] [stderr]     Checking stb_truetype v0.3.1
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling x11-dl v2.19.1
[INFO] [stderr]    Compiling shaderc-sys v0.7.3
[INFO] [stderr]    Compiling wayland-scanner v0.23.6
[INFO] [stderr]     Checking wavefront v0.2.2
[INFO] [stderr]     Checking object v0.27.1
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[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/wavefront-0.2.2/src/lib.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | #![feature(iter_map_while)]
[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 compile `wavefront` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "38a336d393f8dcf6f5a1cde3d89349fc4088e031e457ce0d71f4fa2aa053e018", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38a336d393f8dcf6f5a1cde3d89349fc4088e031e457ce0d71f4fa2aa053e018", kill_on_drop: false }`
[INFO] [stdout] 38a336d393f8dcf6f5a1cde3d89349fc4088e031e457ce0d71f4fa2aa053e018