[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] testing hakatashi/nine-grids-shogi-analyzer against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhakatashi%2Fnine-grids-shogi-analyzer" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/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-4/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 158e308533725936c0c4e6e54933fd086d4f566a09e8ec226a31cd3689f5f83a
[INFO] running `Command { std: "docker" "start" "-a" "158e308533725936c0c4e6e54933fd086d4f566a09e8ec226a31cd3689f5f83a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "158e308533725936c0c4e6e54933fd086d4f566a09e8ec226a31cd3689f5f83a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "158e308533725936c0c4e6e54933fd086d4f566a09e8ec226a31cd3689f5f83a", kill_on_drop: false }`
[INFO] [stdout] 158e308533725936c0c4e6e54933fd086d4f566a09e8ec226a31cd3689f5f83a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6b8e5d0bb5d0e91da38f9e08e162f395b09a58c334fe570b6a80ff5544576e7
[INFO] running `Command { std: "docker" "start" "-a" "b6b8e5d0bb5d0e91da38f9e08e162f395b09a58c334fe570b6a80ff5544576e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling once_cell v1.7.2
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling async-trait v0.1.48
[INFO] [stderr]    Compiling fallible-streaming-iterator v0.1.9
[INFO] [stderr]    Compiling fallible-iterator v0.2.0
[INFO] [stderr]    Compiling dtoa v0.4.7
[INFO] [stderr]    Compiling ahash v0.7.2
[INFO] [stderr]    Compiling libsqlite3-sys v0.22.2
[INFO] [stderr]    Compiling combine v4.6.0
[INFO] [stderr]    Compiling integer-sqrt v0.1.5
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling hashlink v0.7.0
[INFO] [stderr]    Compiling redis v0.21.0
[INFO] [stderr]    Compiling rusqlite v0.25.3
[INFO] [stderr]    Compiling 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: 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 `nine-grids-shogi-analyzer`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "b6b8e5d0bb5d0e91da38f9e08e162f395b09a58c334fe570b6a80ff5544576e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6b8e5d0bb5d0e91da38f9e08e162f395b09a58c334fe570b6a80ff5544576e7", kill_on_drop: false }`
[INFO] [stdout] b6b8e5d0bb5d0e91da38f9e08e162f395b09a58c334fe570b6a80ff5544576e7
