[INFO] cloning repository https://github.com/iovxw/cobble
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iovxw/cobble" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiovxw%2Fcobble", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiovxw%2Fcobble'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2f03cac83c57afd8b290400268ebe033a1023d9e
[INFO] documenting iovxw/cobble 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%2Fiovxw%2Fcobble" "/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/iovxw/cobble 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/iovxw/cobble
[INFO] finished tweaking git repo https://github.com/iovxw/cobble
[INFO] tweaked toml for git repo https://github.com/iovxw/cobble written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/iovxw/cobble 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] [stderr]     Blocking waiting for file lock on package cache
[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] [stdout] 3eda12e16c7c47330938a3443832359fd887e60b54f50fe5f1667b47a601ac3f
[INFO] running `Command { std: "docker" "start" "-a" "3eda12e16c7c47330938a3443832359fd887e60b54f50fe5f1667b47a601ac3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3eda12e16c7c47330938a3443832359fd887e60b54f50fe5f1667b47a601ac3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3eda12e16c7c47330938a3443832359fd887e60b54f50fe5f1667b47a601ac3f", kill_on_drop: false }`
[INFO] [stdout] 3eda12e16c7c47330938a3443832359fd887e60b54f50fe5f1667b47a601ac3f
[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] 78e111fcf942a4e21c07d52f9046dc956dbb193c1502b1b56e007138931dd797
[INFO] running `Command { std: "docker" "start" "-a" "78e111fcf942a4e21c07d52f9046dc956dbb193c1502b1b56e007138931dd797", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.26
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling autocfg v0.1.1
[INFO] [stderr]    Compiling crc32fast v1.1.2
[INFO] [stderr]    Compiling serde v1.0.82
[INFO] [stderr]     Checking rustc-demangle v0.1.10
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
[INFO] [stderr]    Compiling openssl v0.10.15
[INFO] [stderr]     Checking netbuf v0.4.1
[INFO] [stderr]     Checking byteorder v1.2.7
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]    Compiling heck v0.3.0
[INFO] [stderr]    Compiling openssl-sys v0.9.39
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling backtrace-sys v0.1.26
[INFO] [stderr]    Compiling curl-sys v0.4.15
[INFO] [stderr]    Compiling miniz-sys v0.1.11
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]     Checking socket2 v0.3.8
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking rpassword v2.1.0
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]    Compiling syn v0.15.22
[INFO] [stderr]     Checking flate2 v1.0.6
[INFO] [stderr]     Checking error-chain v0.12.0
[INFO] [stderr]    Compiling serde_derive v1.0.82
[INFO] [stderr]    Compiling structopt-derive v0.2.14
[INFO] [stderr]     Checking structopt v0.2.14
[INFO] [stderr]     Checking serde_json v1.0.33
[INFO] [stderr]     Checking curl v0.4.19
[INFO] [stderr]     Checking ozelot v0.8.0 (https://github.com/C4K3/Ozelot.git#e208e440)
[INFO] [stderr]  Documenting cobble v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(slice_patterns)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `slice_patterns` has been stable since 1.42.0 and no longer requires an attribute to enable
[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 `cobble`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name cobble src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=6369ec6602d1d112 -L dependency=/opt/rustwide/target/debug/deps --extern ozelot=/opt/rustwide/target/debug/deps/libozelot-8017e9e52fdfc393.rmeta --extern rpassword=/opt/rustwide/target/debug/deps/librpassword-3ec30519a2f1c287.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-de14b8ac3e192cda.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-e4bc60aaf1c14b81.rmeta --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-aef276f5a8eed947.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "78e111fcf942a4e21c07d52f9046dc956dbb193c1502b1b56e007138931dd797", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78e111fcf942a4e21c07d52f9046dc956dbb193c1502b1b56e007138931dd797", kill_on_drop: false }`
[INFO] [stdout] 78e111fcf942a4e21c07d52f9046dc956dbb193c1502b1b56e007138931dd797