[INFO] fetching crate pi_slotmap_tree 0.4.1...
[INFO] testing pi_slotmap_tree-0.4.1 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate pi_slotmap_tree 0.4.1 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate pi_slotmap_tree 0.4.1
[INFO] finished tweaking crates.io crate pi_slotmap_tree 0.4.1
[INFO] tweaked toml for crates.io crate pi_slotmap_tree 0.4.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pi_slotmap_tree 0.4.1 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 pi_slotmap_tree 0.4.1 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] 09825f8264e849a9d11097450a4cec0a940e4767bb9aa0861781577b7c365acc
[INFO] running `Command { std: "docker" "start" "-a" "09825f8264e849a9d11097450a4cec0a940e4767bb9aa0861781577b7c365acc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09825f8264e849a9d11097450a4cec0a940e4767bb9aa0861781577b7c365acc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09825f8264e849a9d11097450a4cec0a940e4767bb9aa0861781577b7c365acc", kill_on_drop: false }`
[INFO] [stdout] 09825f8264e849a9d11097450a4cec0a940e4767bb9aa0861781577b7c365acc
[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] 1256536d71b18e58120971622f59ca3a5b9879bbece841f59bb716194e29c3f7
[INFO] running `Command { std: "docker" "start" "-a" "1256536d71b18e58120971622f59ca3a5b9879bbece841f59bb716194e29c3f7", kill_on_drop: false }`
[INFO] [stderr]    Compiling pi_null v0.1.11
[INFO] [stderr]    Compiling pi_share v0.5.0
[INFO] [stderr]    Compiling pi_print_any v0.1.2
[INFO] [stderr]    Compiling pi_slotmap v0.2.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling crossbeam-channel v0.5.14
[INFO] [stderr]    Compiling crossbeam-queue v0.3.12
[INFO] [stderr]    Compiling quote v1.0.40
[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/pi_share-0.5.0/src/lib.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | #![feature(sync_unsafe_cell)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/pi_print_any-0.1.2/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(specialization)]
[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 `pi_print_any` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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/pi_null-0.1.11/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(strict_provenance)]
[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 `pi_null` (lib) due to 1 previous error
[INFO] [stdout] error[E0658]: use of unstable library feature `ptr_alignment_type`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pi_share-0.5.0/src/xrc.rs:3425:28
[INFO] [stdout]      |
[INFO] [stdout] 3425 |     layout.size() + layout.padding_needed_for(align)
[INFO] [stdout]      |                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: see issue #102070 <https://github.com/rust-lang/rust/issues/102070> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pi_share-0.5.0/src/xrc.rs:3425:47
[INFO] [stdout]      |
[INFO] [stdout] 3425 |     layout.size() + layout.padding_needed_for(align)
[INFO] [stdout]      |                            ------------------ ^^^^^ expected `Alignment`, found `usize`
[INFO] [stdout]      |                            |
[INFO] [stdout]      |                            arguments to this method are incorrect
[INFO] [stdout]      |
[INFO] [stdout] note: method defined here
[INFO] [stdout]     --> /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/alloc/layout.rs:335:17
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0554, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pi_share` (lib) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "1256536d71b18e58120971622f59ca3a5b9879bbece841f59bb716194e29c3f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1256536d71b18e58120971622f59ca3a5b9879bbece841f59bb716194e29c3f7", kill_on_drop: false }`
[INFO] [stdout] 1256536d71b18e58120971622f59ca3a5b9879bbece841f59bb716194e29c3f7
