[INFO] fetching crate compio-buf 0.7.2...
[INFO] documenting compio-buf-0.7.2 against beta-2026-01-20 for beta-1.94-rustdoc-1
[INFO] extracting crate compio-buf 0.7.2 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate compio-buf 0.7.2
[INFO] finished tweaking crates.io crate compio-buf 0.7.2
[INFO] tweaked toml for crates.io crate compio-buf 0.7.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate compio-buf 0.7.2 on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate compio-buf 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-2026-01-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 10f2ea5b60608ca8dbedbaa24421d38feae1ab513c9e03c16c26a76c51766ab3
[INFO] running `Command { std: "docker" "start" "-a" "10f2ea5b60608ca8dbedbaa24421d38feae1ab513c9e03c16c26a76c51766ab3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10f2ea5b60608ca8dbedbaa24421d38feae1ab513c9e03c16c26a76c51766ab3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10f2ea5b60608ca8dbedbaa24421d38feae1ab513c9e03c16c26a76c51766ab3", kill_on_drop: false }`
[INFO] [stdout] 10f2ea5b60608ca8dbedbaa24421d38feae1ab513c9e03c16c26a76c51766ab3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d64da9689d8f6b2af6dad093de758e8f849de059b66bb2a87da1e0082d06ff9b
[INFO] running `Command { std: "docker" "start" "-a" "d64da9689d8f6b2af6dad093de758e8f849de059b66bb2a87da1e0082d06ff9b", kill_on_drop: false }`
[INFO] [stderr]  Documenting compio-buf v0.7.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.81s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/compio_buf/index.html
[INFO] running `Command { std: "docker" "inspect" "d64da9689d8f6b2af6dad093de758e8f849de059b66bb2a87da1e0082d06ff9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d64da9689d8f6b2af6dad093de758e8f849de059b66bb2a87da1e0082d06ff9b", kill_on_drop: false }`
[INFO] [stdout] d64da9689d8f6b2af6dad093de758e8f849de059b66bb2a87da1e0082d06ff9b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=1" "-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "rustdoc" "--lib" "-Zrustdoc-map" "--all-features" "--config" "build.rustdocflags=[\"--cfg\", \"docsrs\", \"--cfg\", \"docsrs\", \"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 490baf577db2737ab6eea9e42dc7612e3dc56475c3869087d2d1b7e0e7779ea8
[INFO] running `Command { std: "docker" "start" "-a" "490baf577db2737ab6eea9e42dc7612e3dc56475c3869087d2d1b7e0e7779ea8", kill_on_drop: false }`
[INFO] [stderr]     Checking bumpalo v3.19.0
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/bumpalo-3.19.0/src/lib.rs:2474:13
[INFO] [stdout]      |
[INFO] [stdout] 2465 |     ) -> Result<NonNull<u8>, AllocErr> {
[INFO] [stdout]      |          ----------------------------- expected `Result<NonNull<u8>, AllocErr>` because of return type
[INFO] [stdout] ...
[INFO] [stdout] 2474 |             self.shrink(ptr, layout, new_layout)
[INFO] [stdout]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Result<NonNull<u8>, AllocErr>`, found `Result<NonNull<[u8]>, AllocError>`
[INFO] [stdout]      |
[INFO] [stdout]      = note: expected enum `Result<NonNull<u8>, AllocErr>`
[INFO] [stdout]                 found enum `Result<NonNull<[u8]>, core::alloc::AllocError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/bumpalo-3.19.0/src/lib.rs:2476:13
[INFO] [stdout]      |
[INFO] [stdout] 2465 |     ) -> Result<NonNull<u8>, AllocErr> {
[INFO] [stdout]      |          ----------------------------- expected `Result<NonNull<u8>, AllocErr>` because of return type
[INFO] [stdout] ...
[INFO] [stdout] 2476 |             self.grow(ptr, layout, new_layout)
[INFO] [stdout]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Result<NonNull<u8>, AllocErr>`, found `Result<NonNull<[u8]>, AllocError>`
[INFO] [stdout]      |
[INFO] [stdout]      = note: expected enum `Result<NonNull<u8>, AllocErr>`
[INFO] [stdout]                 found enum `Result<NonNull<[u8]>, core::alloc::AllocError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bumpalo` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "490baf577db2737ab6eea9e42dc7612e3dc56475c3869087d2d1b7e0e7779ea8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "490baf577db2737ab6eea9e42dc7612e3dc56475c3869087d2d1b7e0e7779ea8", kill_on_drop: false }`
[INFO] [stdout] 490baf577db2737ab6eea9e42dc7612e3dc56475c3869087d2d1b7e0e7779ea8
