[INFO] cloning repository https://github.com/ray33ee/gud
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ray33ee/gud" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fray33ee%2Fgud", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fray33ee%2Fgud'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 52e4e2026cedfd80118c972dbd6421ceb78bfdb0
[INFO] documenting ray33ee/gud against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fray33ee%2Fgud" "/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/ray33ee/gud on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ray33ee/gud
[INFO] finished tweaking git repo https://github.com/ray33ee/gud
[INFO] tweaked toml for git repo https://github.com/ray33ee/gud written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/ray33ee/gud already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "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] d5653472e263c0a84ff37fde965b3a80561dd7c102253c8165cf26aea55c13f0
[INFO] running `Command { std: "docker" "start" "-a" "d5653472e263c0a84ff37fde965b3a80561dd7c102253c8165cf26aea55c13f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d5653472e263c0a84ff37fde965b3a80561dd7c102253c8165cf26aea55c13f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5653472e263c0a84ff37fde965b3a80561dd7c102253c8165cf26aea55c13f0", kill_on_drop: false }`
[INFO] [stdout] d5653472e263c0a84ff37fde965b3a80561dd7c102253c8165cf26aea55c13f0
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", 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] a9f4f759a08be0c0e200131a10a1b99f3e48337430f6cdb0679f34ad0ebe9962
[INFO] running `Command { std: "docker" "start" "-a" "a9f4f759a08be0c0e200131a10a1b99f3e48337430f6cdb0679f34ad0ebe9962", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.70
[INFO] [stderr]     Checking diffy v0.2.1
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking lzma-rs v0.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking zip v0.5.12
[INFO] [stderr]     Checking serde v1.0.125
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]  Documenting gud v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(seek_stream_len)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(iter_advance_by)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 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 `gud`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name gud src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern bincode=/opt/rustwide/target/debug/deps/libbincode-53cb0ca5e89feee5.rmeta --extern diffy=/opt/rustwide/target/debug/deps/libdiffy-82129b65333a2165.rmeta --extern lzma_rs=/opt/rustwide/target/debug/deps/liblzma_rs-18e9f83a9929c0bf.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-afafce8a8f7903fb.rmeta --extern tar=/opt/rustwide/target/debug/deps/libtar-db38a347827df780.rmeta --extern walkdir=/opt/rustwide/target/debug/deps/libwalkdir-c0fe0581f7b315ac.rmeta --extern zip=/opt/rustwide/target/debug/deps/libzip-12d4302eff86684b.rmeta --cap-lints=warn --crate-version 0.1.4` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "a9f4f759a08be0c0e200131a10a1b99f3e48337430f6cdb0679f34ad0ebe9962", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9f4f759a08be0c0e200131a10a1b99f3e48337430f6cdb0679f34ad0ebe9962", kill_on_drop: false }`
[INFO] [stdout] a9f4f759a08be0c0e200131a10a1b99f3e48337430f6cdb0679f34ad0ebe9962
