[INFO] fetching crate tensorgraph-math 0.1.11...
[INFO] testing tensorgraph-math-0.1.11 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate tensorgraph-math 0.1.11 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate tensorgraph-math 0.1.11
[INFO] finished tweaking crates.io crate tensorgraph-math 0.1.11
[INFO] tweaked toml for crates.io crate tensorgraph-math 0.1.11 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tensorgraph-math 0.1.11 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 tensorgraph-math 0.1.11 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] b61e726be45874675bfff598ff2dc1d97537b01cf3096723edd5b3070ef0537e
[INFO] running `Command { std: "docker" "start" "-a" "b61e726be45874675bfff598ff2dc1d97537b01cf3096723edd5b3070ef0537e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b61e726be45874675bfff598ff2dc1d97537b01cf3096723edd5b3070ef0537e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b61e726be45874675bfff598ff2dc1d97537b01cf3096723edd5b3070ef0537e", kill_on_drop: false }`
[INFO] [stdout] b61e726be45874675bfff598ff2dc1d97537b01cf3096723edd5b3070ef0537e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] dc0b278af56816df225df02372d908797bafb7fbac511684b2ee4ff0093e3f49
[INFO] running `Command { std: "docker" "start" "-a" "dc0b278af56816df225df02372d908797bafb7fbac511684b2ee4ff0093e3f49", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling blas-src v0.8.0
[INFO] [stderr]    Compiling tensorgraph-sys v0.1.11
[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/tensorgraph-sys-0.1.11/src/lib.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout]  2 | / #![feature(
[INFO] [stdout]  3 | |     generic_associated_types,
[INFO] [stdout]  4 | |     allocator_api,
[INFO] [stdout]  5 | |     alloc_layout_extra,
[INFO] [stdout] ...  |
[INFO] [stdout] 13 | |     layout_for_ptr
[INFO] [stdout] 14 | | )]
[INFO] [stdout]    | |__^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the feature `generic_associated_types` has been stable since `1.65.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no associated function or constant named `slice_assume_init_ref` found for union `MaybeUninit<T>` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tensorgraph-sys-0.1.11/src/ptr/reef.rs:61:25
[INFO] [stdout]    |
[INFO] [stdout] 61 |         &*(MaybeUninit::slice_assume_init_ref(&self.inner) as *const [T] as *const _)
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^ associated function or constant not found in `MaybeUninit<_>`
[INFO] [stdout]    |
[INFO] [stdout] note: if you're trying to build a new `MaybeUninit<_>` consider using one of the following associated functions:
[INFO] [stdout]       MaybeUninit::<T>::new
[INFO] [stdout]       MaybeUninit::<T>::uninit
[INFO] [stdout]       MaybeUninit::<T>::zeroed
[INFO] [stdout]   --> /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/mem/maybe_uninit.rs:406:4
[INFO] [stdout] help: there is a method `assume_init_ref` with a similar name, but with different arguments
[INFO] [stdout]   --> /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/mem/maybe_uninit.rs:893:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no associated function or constant named `slice_assume_init_mut` found for union `MaybeUninit<T>` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tensorgraph-sys-0.1.11/src/ptr/reef.rs:66:29
[INFO] [stdout]    |
[INFO] [stdout] 66 |         &mut *(MaybeUninit::slice_assume_init_mut(&mut self.inner) as *mut [T] as *mut _)
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^ associated function or constant not found in `MaybeUninit<_>`
[INFO] [stdout]    |
[INFO] [stdout] note: if you're trying to build a new `MaybeUninit<_>` consider using one of the following associated functions:
[INFO] [stdout]       MaybeUninit::<T>::new
[INFO] [stdout]       MaybeUninit::<T>::uninit
[INFO] [stdout]       MaybeUninit::<T>::zeroed
[INFO] [stdout]   --> /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/mem/maybe_uninit.rs:406:4
[INFO] [stdout] help: there is a method `assume_init_mut` with a similar name, but with different arguments
[INFO] [stdout]   --> /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/mem/maybe_uninit.rs:1010:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tensorgraph-sys` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "dc0b278af56816df225df02372d908797bafb7fbac511684b2ee4ff0093e3f49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc0b278af56816df225df02372d908797bafb7fbac511684b2ee4ff0093e3f49", kill_on_drop: false }`
[INFO] [stdout] dc0b278af56816df225df02372d908797bafb7fbac511684b2ee4ff0093e3f49
