[INFO] cloning repository https://github.com/green-ogre/revol
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/green-ogre/revol" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgreen-ogre%2Frevol", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgreen-ogre%2Frevol'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a7fefb8599c4d22a7d6f2870aed8d0e66a93e6af
[INFO] testing green-ogre/revol against beta-2026-04-21 for beta-1.96-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgreen-ogre%2Frevol" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/green-ogre/revol
[INFO] finished tweaking git repo https://github.com/green-ogre/revol
[INFO] tweaked toml for git repo https://github.com/green-ogre/revol written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/green-ogre/revol on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/green-ogre/revol already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: lib.pretty_env_logger
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f9a2df2d3cd85e8f6de817be3de4b14f285e45a74e9b0271531793f68e57a443
[INFO] running `Command { std: "docker" "start" "-a" "f9a2df2d3cd85e8f6de817be3de4b14f285e45a74e9b0271531793f68e57a443", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f9a2df2d3cd85e8f6de817be3de4b14f285e45a74e9b0271531793f68e57a443", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9a2df2d3cd85e8f6de817be3de4b14f285e45a74e9b0271531793f68e57a443", kill_on_drop: false }`
[INFO] [stdout] f9a2df2d3cd85e8f6de817be3de4b14f285e45a74e9b0271531793f68e57a443
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9491b359ba17637d5f2ad501dbeee0d30aca26b98f724e177b40c91dba13d215
[INFO] running `Command { std: "docker" "start" "-a" "9491b359ba17637d5f2ad501dbeee0d30aca26b98f724e177b40c91dba13d215", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: lib.pretty_env_logger
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.161
[INFO] [stderr]    Compiling simd-adler32 v0.3.7
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling adler2 v2.0.0
[INFO] [stderr]    Compiling once_cell v1.20.2
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling miniquad v0.4.6
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling bytemuck v1.19.0
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]    Compiling crc32fast v1.4.2
[INFO] [stderr]    Compiling ttf-parser v0.15.2
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling miniz_oxide v0.8.0
[INFO] [stderr]    Compiling fdeflate v0.3.5
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling termcolor v1.4.1
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling quad-rand v0.2.2
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling glam v0.27.0
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling slotmap v1.0.7
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling macroquad_macro v0.1.8
[INFO] [stderr]    Compiling hashbrown v0.13.2
[INFO] [stderr]    Compiling flate2 v1.0.34
[INFO] [stderr]    Compiling is-terminal v0.4.13
[INFO] [stderr]    Compiling png v0.17.14
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling fontdue v0.7.3
[INFO] [stderr]    Compiling image v0.24.9
[INFO] [stderr]    Compiling regex-automata v0.4.8
[INFO] [stderr]    Compiling force_graph v0.3.2
[INFO] [stderr]    Compiling macroquad v0.4.13
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling env_logger v0.10.2
[INFO] [stderr]    Compiling pretty_env_logger v0.5.0
[INFO] [stderr]    Compiling revol v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(variant_count)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `revol` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "9491b359ba17637d5f2ad501dbeee0d30aca26b98f724e177b40c91dba13d215", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9491b359ba17637d5f2ad501dbeee0d30aca26b98f724e177b40c91dba13d215", kill_on_drop: false }`
[INFO] [stdout] 9491b359ba17637d5f2ad501dbeee0d30aca26b98f724e177b40c91dba13d215