[INFO] fetching crate vertigo-cmark 0.1.0...
[INFO] testing vertigo-cmark-0.1.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate vertigo-cmark 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate vertigo-cmark 0.1.0
[INFO] finished tweaking crates.io crate vertigo-cmark 0.1.0
[INFO] tweaked toml for crates.io crate vertigo-cmark 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate vertigo-cmark 0.1.0 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 crates.io crate vertigo-cmark 0.1.0 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] ce642bceb57e05a96e775de058b5c4135f1dda576ba2556e737fb59b2baf2200
[INFO] running `Command { std: "docker" "start" "-a" "ce642bceb57e05a96e775de058b5c4135f1dda576ba2556e737fb59b2baf2200", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce642bceb57e05a96e775de058b5c4135f1dda576ba2556e737fb59b2baf2200", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce642bceb57e05a96e775de058b5c4135f1dda576ba2556e737fb59b2baf2200", kill_on_drop: false }`
[INFO] [stdout] ce642bceb57e05a96e775de058b5c4135f1dda576ba2556e737fb59b2baf2200
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] beff7584ebfb04fb9eb5ff0ad8f98d03490128ef1055cb120d45ca1a51e07990
[INFO] running `Command { std: "docker" "start" "-a" "beff7584ebfb04fb9eb5ff0ad8f98d03490128ef1055cb120d45ca1a51e07990", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling ucd-trie v0.1.7
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling css-color v0.2.8
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.10.1
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling xxhash-rust v0.8.15
[INFO] [stderr]    Compiling vertigo-macro v0.8.3
[INFO] [stderr]    Compiling crc-catalog v2.4.0
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling pkg-version-impl v0.1.1
[INFO] [stderr]    Compiling unicode-width v0.2.1
[INFO] [stderr]    Compiling vertigo v0.8.3
[INFO] [stderr]    Compiling crc v3.3.0
[INFO] [stderr]    Compiling pulldown-cmark v0.13.0
[INFO] [stderr]    Compiling pulldown-cmark-escape v0.11.0
[INFO] [stderr]    Compiling bitflags v2.9.4
[INFO] [stderr]    Compiling html5tokenizer v0.5.2
[INFO] [stderr]    Compiling getopts v0.2.24
[INFO] [stderr]    Compiling pkg-version v1.0.0
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling proc-macro-error-attr2 v2.0.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling proc-macro-error2 v2.0.1
[INFO] [stderr]    Compiling tailwind-error v1.3.3
[INFO] [stderr]    Compiling tailwind-ast v0.4.1
[INFO] [stderr]    Compiling tailwind-css v0.13.0
[INFO] [stderr]    Compiling darling_core v0.21.3
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]    Compiling derive-where v1.6.0
[INFO] [stderr]    Compiling syn_derive v0.2.0
[INFO] [stderr]    Compiling pest v2.8.2
[INFO] [stderr]    Compiling rstml v0.12.1
[INFO] [stderr]    Compiling darling_macro v0.21.3
[INFO] [stderr]    Compiling darling v0.21.3
[INFO] [stderr]    Compiling pest_meta v2.8.2
[INFO] [stderr]    Compiling pest_generator v2.8.2
[INFO] [stderr]    Compiling pest_derive v2.8.2
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/vertigo-macro-0.8.3/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_span)]
[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 `vertigo-macro` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "beff7584ebfb04fb9eb5ff0ad8f98d03490128ef1055cb120d45ca1a51e07990", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "beff7584ebfb04fb9eb5ff0ad8f98d03490128ef1055cb120d45ca1a51e07990", kill_on_drop: false }`
[INFO] [stdout] beff7584ebfb04fb9eb5ff0ad8f98d03490128ef1055cb120d45ca1a51e07990
