[INFO] cloning repository https://github.com/JoshuaRolent/raytrace-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JoshuaRolent/raytrace-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoshuaRolent%2Fraytrace-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoshuaRolent%2Fraytrace-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2b9b07a418c34c87e3df817ef16d89d8163b636a
[INFO] documenting JoshuaRolent/raytrace-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%2FJoshuaRolent%2Fraytrace-rs" "/workspace/builds/worker-16/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-16/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JoshuaRolent/raytrace-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] removed /workspace/builds/worker-16/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/JoshuaRolent/raytrace-rs
[INFO] finished tweaking git repo https://github.com/JoshuaRolent/raytrace-rs
[INFO] tweaked toml for git repo https://github.com/JoshuaRolent/raytrace-rs written to /workspace/builds/worker-16/source/Cargo.toml
[INFO] crate git repo https://github.com/JoshuaRolent/raytrace-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]  Downloading crates ...
[INFO] [stderr]   Downloaded termios v0.3.2
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[INFO] [stderr]   Downloaded ab_glyph_rasterizer v0.1.2
[INFO] [stderr]   Downloaded console v0.11.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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] 814bf6746a1e0cfe4839c45707c91b2a4046d851fff7acb16b7b9d47a4a44101
[INFO] running `Command { std: "docker" "start" "-a" "814bf6746a1e0cfe4839c45707c91b2a4046d851fff7acb16b7b9d47a4a44101", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "814bf6746a1e0cfe4839c45707c91b2a4046d851fff7acb16b7b9d47a4a44101", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "814bf6746a1e0cfe4839c45707c91b2a4046d851fff7acb16b7b9d47a4a44101", kill_on_drop: false }`
[INFO] [stdout] 814bf6746a1e0cfe4839c45707c91b2a4046d851fff7acb16b7b9d47a4a44101
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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] ddf423c00d952911ade1b91b637693f40425efd154df69b9e82676dc9624256b
[INFO] running `Command { std: "docker" "start" "-a" "ddf423c00d952911ade1b91b637693f40425efd154df69b9e82676dc9624256b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling rayon-core v1.7.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking adler32 v1.1.0
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
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[INFO] [stderr]    Compiling unicode-xid v0.2.1
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[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling num-bigint v0.3.0
[INFO] [stderr]    Compiling rayon v1.3.1
[INFO] [stderr]    Compiling num-rational v0.3.0
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[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking rusttype v0.9.2
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[INFO] [stderr]     Checking quote v1.0.7
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking png v0.16.6
[INFO] [stderr]     Checking num-complex v0.3.0
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking indicatif v0.15.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking rulinalg v0.4.2
[INFO] [stderr]     Checking num v0.3.0
[INFO] [stderr]  Documenting raytracer_codegen v0.1.0 (/opt/rustwide/workdir/raytracer_codegen)
[INFO] [stderr]    Compiling raytracer_codegen v0.1.0 (/opt/rustwide/workdir/raytracer_codegen)
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]     Checking image v0.23.7
[INFO] [stderr]     Checking imageproc v0.21.0
[INFO] [stderr]  Documenting raytracer v0.1.0 (/opt/rustwide/workdir/raytracer)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> raytracer/src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(box_syntax)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `raytracer`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name raytracer raytracer/src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=56ab08f160037f5f -L dependency=/opt/rustwide/target/debug/deps --extern image=/opt/rustwide/target/debug/deps/libimage-da7e05e7f55a1625.rmeta --extern imageproc=/opt/rustwide/target/debug/deps/libimageproc-4ee378cc8787f980.rmeta --extern indicatif=/opt/rustwide/target/debug/deps/libindicatif-2b46bdbb01c290da.rmeta --extern raytracer_codegen=/opt/rustwide/target/debug/deps/libraytracer_codegen-6baa41d5812c6ac0.so --extern rusttype=/opt/rustwide/target/debug/deps/librusttype-b0a39801b1852858.rmeta --extern threadpool=/opt/rustwide/target/debug/deps/libthreadpool-6d838956b9d9cd06.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "ddf423c00d952911ade1b91b637693f40425efd154df69b9e82676dc9624256b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddf423c00d952911ade1b91b637693f40425efd154df69b9e82676dc9624256b", kill_on_drop: false }`
[INFO] [stdout] ddf423c00d952911ade1b91b637693f40425efd154df69b9e82676dc9624256b