[INFO] cloning repository https://github.com/koboriakira/headsup-analyzer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/koboriakira/headsup-analyzer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkoboriakira%2Fheadsup-analyzer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkoboriakira%2Fheadsup-analyzer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7e456a4c488828d6af4f5c376123d32354b0de37
[INFO] documenting koboriakira/headsup-analyzer 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%2Fkoboriakira%2Fheadsup-analyzer" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/koboriakira/headsup-analyzer 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] started tweaking git repo https://github.com/koboriakira/headsup-analyzer
[INFO] finished tweaking git repo https://github.com/koboriakira/headsup-analyzer
[INFO] tweaked toml for git repo https://github.com/koboriakira/headsup-analyzer written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/koboriakira/headsup-analyzer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gen_eval_table v0.1.2
[INFO] [stderr]   Downloaded read_write v0.1.2
[INFO] [stderr]   Downloaded rs_poker v1.0.0
[INFO] [stderr]   Downloaded fastdivide v0.2.0
[INFO] [stderr]   Downloaded rust_poker v0.1.14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] 9e1ab5c228d935df22acdfd47584b26cffd61d2b9d83e4b359bf4cea92a6421e
[INFO] running `Command { std: "docker" "start" "-a" "9e1ab5c228d935df22acdfd47584b26cffd61d2b9d83e4b359bf4cea92a6421e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e1ab5c228d935df22acdfd47584b26cffd61d2b9d83e4b359bf4cea92a6421e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e1ab5c228d935df22acdfd47584b26cffd61d2b9d83e4b359bf4cea92a6421e", kill_on_drop: false }`
[INFO] [stdout] 9e1ab5c228d935df22acdfd47584b26cffd61d2b9d83e4b359bf4cea92a6421e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] 64248ddb8db593b9a58498882a554d26df84f44ce5fc9a9bca0626b5dfe12e8d
[INFO] running `Command { std: "docker" "start" "-a" "64248ddb8db593b9a58498882a554d26df84f44ce5fc9a9bca0626b5dfe12e8d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling read_write v0.1.2
[INFO] [stderr]     Checking fastdivide v0.2.0
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]     Checking serde_json v1.0.61
[INFO] [stderr]    Compiling gen_eval_table v0.1.2
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling rust_poker v0.1.14
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rs_poker v1.0.0
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking clap v3.0.0-beta.2
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rust_poker-0.1.14/src/lib.rs:1:1
[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 compile `rust_poker` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "64248ddb8db593b9a58498882a554d26df84f44ce5fc9a9bca0626b5dfe12e8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64248ddb8db593b9a58498882a554d26df84f44ce5fc9a9bca0626b5dfe12e8d", kill_on_drop: false }`
[INFO] [stdout] 64248ddb8db593b9a58498882a554d26df84f44ce5fc9a9bca0626b5dfe12e8d
