[INFO] fetching crate texcore 0.7.2...
[INFO] testing texcore-0.7.2 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate texcore 0.7.2 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate texcore 0.7.2
[INFO] finished tweaking crates.io crate texcore 0.7.2
[INFO] tweaked toml for crates.io crate texcore 0.7.2 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate texcore 0.7.2 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 texcore 0.7.2 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] 9f7ff904acb499c879dfeb05ade08363cd94258c6f168ed33e1d99d193d1f2a6
[INFO] running `Command { std: "docker" "start" "-a" "9f7ff904acb499c879dfeb05ade08363cd94258c6f168ed33e1d99d193d1f2a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f7ff904acb499c879dfeb05ade08363cd94258c6f168ed33e1d99d193d1f2a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f7ff904acb499c879dfeb05ade08363cd94258c6f168ed33e1d99d193d1f2a6", kill_on_drop: false }`
[INFO] [stdout] 9f7ff904acb499c879dfeb05ade08363cd94258c6f168ed33e1d99d193d1f2a6
[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] 06f95dfe762de01948eeead48aff8a9a1c1166f2c4fc9fe34046395608e65ff8
[INFO] running `Command { std: "docker" "start" "-a" "06f95dfe762de01948eeead48aff8a9a1c1166f2c4fc9fe34046395608e65ff8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde_derive v1.0.160
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stderr]    Compiling syn v2.0.15
[INFO] [stderr]    Compiling texcore_derive v0.1.0
[INFO] [stderr]    Compiling texcore_traits v0.1.0
[INFO] [stderr]    Compiling texcore v0.7.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(doc_auto_cfg)]
[INFO] [stdout]   |            ^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed in 1.92.0; see <https://github.com/rust-lang/rust/pull/138907> for more information
[INFO] [stdout]   = note: merged into `doc_cfg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `texcore` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "06f95dfe762de01948eeead48aff8a9a1c1166f2c4fc9fe34046395608e65ff8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06f95dfe762de01948eeead48aff8a9a1c1166f2c4fc9fe34046395608e65ff8", kill_on_drop: false }`
[INFO] [stdout] 06f95dfe762de01948eeead48aff8a9a1c1166f2c4fc9fe34046395608e65ff8
