[INFO] cloning repository https://github.com/zeta-lang/zeta
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zeta-lang/zeta" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzeta-lang%2Fzeta", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzeta-lang%2Fzeta'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b7cddcee3eac65d36153550148e8b5b55bc858ef
[INFO] documenting zeta-lang/zeta against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzeta-lang%2Fzeta" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zeta-lang/zeta on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-7/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/zeta-lang/zeta
[INFO] finished tweaking git repo https://github.com/zeta-lang/zeta
[INFO] tweaked toml for git repo https://github.com/zeta-lang/zeta written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 78726c11a6e534650b2703efe6610b1fbc7e36ba99cee157a46bcb148c8c32f1
[INFO] running `Command { std: "docker" "start" "-a" "78726c11a6e534650b2703efe6610b1fbc7e36ba99cee157a46bcb148c8c32f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "78726c11a6e534650b2703efe6610b1fbc7e36ba99cee157a46bcb148c8c32f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78726c11a6e534650b2703efe6610b1fbc7e36ba99cee157a46bcb148c8c32f1", kill_on_drop: false }`
[INFO] [stdout] 78726c11a6e534650b2703efe6610b1fbc7e36ba99cee157a46bcb148c8c32f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] acda38ee2efdcdd7277ef11d427b3526b5b4e6c83168efde6ea54d1392bcbd76
[INFO] running `Command { std: "docker" "start" "-a" "acda38ee2efdcdd7277ef11d427b3526b5b4e6c83168efde6ea54d1392bcbd76", kill_on_drop: false }`
[INFO] [stderr]    Compiling peg-runtime v0.7.0
[INFO] [stderr]     Checking zeta_log v0.2.0 (/opt/rustwide/workdir/crates/log)
[INFO] [stderr]  Documenting zeta_log v0.2.0 (/opt/rustwide/workdir/crates/log)
[INFO] [stderr]     Checking zeta_macros v0.2.0 (/opt/rustwide/workdir/crates/macros)
[INFO] [stderr]  Documenting zeta_macros v0.2.0 (/opt/rustwide/workdir/crates/macros)
[INFO] [stderr]    Compiling zeta_derive v0.2.0 (/opt/rustwide/workdir/crates/derive)
[INFO] [stderr]  Documenting zeta_derive v0.2.0 (/opt/rustwide/workdir/crates/derive)
[INFO] [stderr]     Checking zeta_common v0.2.0 (/opt/rustwide/workdir/crates/common)
[INFO] [stderr]  Documenting zeta_common v0.2.0 (/opt/rustwide/workdir/crates/common)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> crates/common/src/lib.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout] 2  | / #![feature(
[INFO] [stdout] 3  | |     specialization,
[INFO] [stdout] 4  | |     const_panic,
[INFO] [stdout] 5  | |     maybe_uninit_ref,
[INFO] [stdout] ...  |
[INFO] [stdout] 12 | |     trait_alias
[INFO] [stdout] 13 | | )]
[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 `zeta_common`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name zeta_common crates/common/src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern macros=/opt/rustwide/target/debug/deps/libzeta_macros-d8959af13036640a.rmeta --cap-lints=warn --crate-version 0.2.0` (exit status: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> crates/common/src/lib.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout] 2  | / #![feature(
[INFO] [stdout] 3  | |     specialization,
[INFO] [stdout] 4  | |     const_panic,
[INFO] [stdout] 5  | |     maybe_uninit_ref,
[INFO] [stdout] ...  |
[INFO] [stdout] 12 | |     trait_alias
[INFO] [stdout] 13 | | )]
[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: build failed
[INFO] running `Command { std: "docker" "inspect" "acda38ee2efdcdd7277ef11d427b3526b5b4e6c83168efde6ea54d1392bcbd76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acda38ee2efdcdd7277ef11d427b3526b5b4e6c83168efde6ea54d1392bcbd76", kill_on_drop: false }`
[INFO] [stdout] acda38ee2efdcdd7277ef11d427b3526b5b4e6c83168efde6ea54d1392bcbd76
