[INFO] cloning repository https://github.com/MaxVerevkin/fireball-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MaxVerevkin/fireball-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMaxVerevkin%2Ffireball-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMaxVerevkin%2Ffireball-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 22820a01e12396da0a0dcec00740e8e74f0ed0b5
[INFO] documenting MaxVerevkin/fireball-rs against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMaxVerevkin%2Ffireball-rs" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MaxVerevkin/fireball-rs on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MaxVerevkin/fireball-rs
[INFO] finished tweaking git repo https://github.com/MaxVerevkin/fireball-rs
[INFO] tweaked toml for git repo https://github.com/MaxVerevkin/fireball-rs written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/MaxVerevkin/fireball-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2dd0f1d4a2fb464544bca0f3f9752d292c7643c05c597bd61e6e61283c4c1669
[INFO] running `Command { std: "docker" "start" "-a" "2dd0f1d4a2fb464544bca0f3f9752d292c7643c05c597bd61e6e61283c4c1669", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2dd0f1d4a2fb464544bca0f3f9752d292c7643c05c597bd61e6e61283c4c1669", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dd0f1d4a2fb464544bca0f3f9752d292c7643c05c597bd61e6e61283c4c1669", kill_on_drop: false }`
[INFO] [stdout] 2dd0f1d4a2fb464544bca0f3f9752d292c7643c05c597bd61e6e61283c4c1669
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 87ea2d2083fedd1310560075cd90d335ea1addd13fc31cf962036fea2f717344
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "87ea2d2083fedd1310560075cd90d335ea1addd13fc31cf962036fea2f717344", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]     Checking assert_approx_eq v1.1.0
[INFO] [stderr]     Checking histogram v0.1.0 (/opt/rustwide/workdir/histogram)
[INFO] [stderr]     Checking scad-gen v0.1.0 (/opt/rustwide/workdir/scad-gen)
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking getrandom v0.2.5
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]     Checking serde v1.0.136
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]  Documenting fireball v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(core_intrinsics)]
[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 `fireball`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name fireball src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=d9d8460599c50983 -L dependency=/opt/rustwide/target/debug/deps --extern assert_approx_eq=/opt/rustwide/target/debug/deps/libassert_approx_eq-352eee2bc360ff9e.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-2a0cb23266491118.rmeta --extern histogram=/opt/rustwide/target/debug/deps/libhistogram-99171367c319b619.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-55de2ea41559837e.rmeta --extern rand_distr=/opt/rustwide/target/debug/deps/librand_distr-c97da413d09b5a8c.rmeta --extern scad_gen=/opt/rustwide/target/debug/deps/libscad_gen-f3b78cd1e28c9121.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-8fb02e7cc6769ba9.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-a0ab1c88623a04b5.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "87ea2d2083fedd1310560075cd90d335ea1addd13fc31cf962036fea2f717344", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87ea2d2083fedd1310560075cd90d335ea1addd13fc31cf962036fea2f717344", kill_on_drop: false }`
[INFO] [stdout] 87ea2d2083fedd1310560075cd90d335ea1addd13fc31cf962036fea2f717344