[INFO] cloning repository https://github.com/hakatashi/nine-grids-shogi-analyzer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hakatashi/nine-grids-shogi-analyzer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhakatashi%2Fnine-grids-shogi-analyzer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhakatashi%2Fnine-grids-shogi-analyzer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 12d6c5dfd59199b903e1ffa022cd19349a9c01a9
[INFO] documenting hakatashi/nine-grids-shogi-analyzer 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%2Fhakatashi%2Fnine-grids-shogi-analyzer" "/workspace/builds/worker-76/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-76/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hakatashi/nine-grids-shogi-analyzer 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/hakatashi/nine-grids-shogi-analyzer
[INFO] finished tweaking git repo https://github.com/hakatashi/nine-grids-shogi-analyzer
[INFO] tweaked toml for git repo https://github.com/hakatashi/nine-grids-shogi-analyzer written to /workspace/builds/worker-76/source/Cargo.toml
[INFO] crate git repo https://github.com/hakatashi/nine-grids-shogi-analyzer 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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] [stdout] e68fefa8e942d38567623d0513ccd210cb4d173cc34009bceed6d96224346a68
[INFO] running `Command { std: "docker" "start" "-a" "e68fefa8e942d38567623d0513ccd210cb4d173cc34009bceed6d96224346a68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e68fefa8e942d38567623d0513ccd210cb4d173cc34009bceed6d96224346a68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e68fefa8e942d38567623d0513ccd210cb4d173cc34009bceed6d96224346a68", kill_on_drop: false }`
[INFO] [stdout] e68fefa8e942d38567623d0513ccd210cb4d173cc34009bceed6d96224346a68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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] [stdout] 70848993c7faa3cc50a1ce1e8a3dc18546f9fc2adc1e104391c2eece8d876cfc
[INFO] running `Command { std: "docker" "start" "-a" "70848993c7faa3cc50a1ce1e8a3dc18546f9fc2adc1e104391c2eece8d876cfc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling async-trait v0.1.48
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking dtoa v0.4.7
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]     Checking fallible-streaming-iterator v0.1.9
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling ahash v0.7.2
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking unicode-normalization v0.1.17
[INFO] [stderr]     Checking integer-sqrt v0.1.5
[INFO] [stderr]     Checking combine v4.6.0
[INFO] [stderr]    Compiling libsqlite3-sys v0.22.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking idna v0.2.2
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking url v2.2.1
[INFO] [stderr]     Checking hashlink v0.7.0
[INFO] [stderr]     Checking redis v0.21.0
[INFO] [stderr]     Checking rusqlite v0.25.3
[INFO] [stderr]  Documenting nine-grids-shogi-analyzer v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(non_ascii_idents, range_contains)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `non_ascii_idents` has been stable since 1.53.0 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 `nine-grids-shogi-analyzer`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name nine_grids_shogi_analyzer 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 fnv=/opt/rustwide/target/debug/deps/libfnv-335ca1a37265ba44.rmeta --extern integer_sqrt=/opt/rustwide/target/debug/deps/libinteger_sqrt-742e24a3d428ef88.rmeta --extern redis=/opt/rustwide/target/debug/deps/libredis-bf7ec9086c4ab8f2.rmeta --extern rusqlite=/opt/rustwide/target/debug/deps/librusqlite-de1c7c08bf683ba3.rmeta --cap-lints=warn --crate-version 1.0.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "70848993c7faa3cc50a1ce1e8a3dc18546f9fc2adc1e104391c2eece8d876cfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70848993c7faa3cc50a1ce1e8a3dc18546f9fc2adc1e104391c2eece8d876cfc", kill_on_drop: false }`
[INFO] [stdout] 70848993c7faa3cc50a1ce1e8a3dc18546f9fc2adc1e104391c2eece8d876cfc
