[INFO] cloning repository https://github.com/GhostOfMe/digital_rain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GhostOfMe/digital_rain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGhostOfMe%2Fdigital_rain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGhostOfMe%2Fdigital_rain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 705a4f62903bc3bc6d49f6370b2fe1a227a7ede3
[INFO] documenting GhostOfMe/digital_rain against 1.75.0 for beta-1.76-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGhostOfMe%2Fdigital_rain" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/GhostOfMe/digital_rain on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5-tc1/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/GhostOfMe/digital_rain
[INFO] finished tweaking git repo https://github.com/GhostOfMe/digital_rain
[INFO] tweaked toml for git repo https://github.com/GhostOfMe/digital_rain written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/GhostOfMe/digital_rain already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5715e011526a108a6b966248e2a01b2c88e0334c6a1da93fc3fc215d938e0b8b
[INFO] running `Command { std: "docker" "start" "-a" "5715e011526a108a6b966248e2a01b2c88e0334c6a1da93fc3fc215d938e0b8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5715e011526a108a6b966248e2a01b2c88e0334c6a1da93fc3fc215d938e0b8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5715e011526a108a6b966248e2a01b2c88e0334c6a1da93fc3fc215d938e0b8b", kill_on_drop: false }`
[INFO] [stdout] 5715e011526a108a6b966248e2a01b2c88e0334c6a1da93fc3fc215d938e0b8b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa348144ecca7a3c850e472c2850245193b663e6f4c6832f504ffd5f978dfe18
[INFO] running `Command { std: "docker" "start" "-a" "aa348144ecca7a3c850e472c2850245193b663e6f4c6832f504ffd5f978dfe18", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.89
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling libm v0.2.6
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking lazy_static v0.1.16
[INFO] [stderr]     Checking css-color-parser v0.1.2
[INFO] [stderr]     Checking itertools v0.10.0
[INFO] [stderr]    Compiling ncurses v5.101.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]  Documenting digital_rain v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[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 `digital_rain`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2018 --crate-type bin --crate-name digital_rain 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=ae00a74862365e96 -L dependency=/opt/rustwide/target/debug/deps --extern clap=/opt/rustwide/target/debug/deps/libclap-5d9f1f115f0c5aa1.rmeta --extern css_color_parser=/opt/rustwide/target/debug/deps/libcss_color_parser-cc84509194e25d03.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-6bd46e1acaa266ef.rmeta --extern ncurses=/opt/rustwide/target/debug/deps/libncurses-ae931850c960e7ed.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-814ca9e90c5792ae.rmeta --extern rand_distr=/opt/rustwide/target/debug/deps/librand_distr-896e4f49b4819421.rmeta --cap-lints=warn --crate-version 0.2.4` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "aa348144ecca7a3c850e472c2850245193b663e6f4c6832f504ffd5f978dfe18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa348144ecca7a3c850e472c2850245193b663e6f4c6832f504ffd5f978dfe18", kill_on_drop: false }`
[INFO] [stdout] aa348144ecca7a3c850e472c2850245193b663e6f4c6832f504ffd5f978dfe18
