[INFO] fetching crate scicrypt-traits 0.7.1...
[INFO] testing scicrypt-traits-0.7.1 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate scicrypt-traits 0.7.1 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate scicrypt-traits 0.7.1
[INFO] finished tweaking crates.io crate scicrypt-traits 0.7.1
[INFO] tweaked toml for crates.io crate scicrypt-traits 0.7.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate scicrypt-traits 0.7.1 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 8 packages to latest compatible versions
[INFO] [stderr]       Adding rand_core v0.6.4 (available: v0.10.1)
[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] c9b7fee38c72c0268045c04142a989244a2d3349a5c8ffcefd501ecdcf571fd9
[INFO] running `Command { std: "docker" "start" "-a" "c9b7fee38c72c0268045c04142a989244a2d3349a5c8ffcefd501ecdcf571fd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9b7fee38c72c0268045c04142a989244a2d3349a5c8ffcefd501ecdcf571fd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9b7fee38c72c0268045c04142a989244a2d3349a5c8ffcefd501ecdcf571fd9", kill_on_drop: false }`
[INFO] [stdout] c9b7fee38c72c0268045c04142a989244a2d3349a5c8ffcefd501ecdcf571fd9
[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] 5b196a425ee1ab71c9c8c652e706ca042c6fb2770605b041da4b1dabc0fea8c6
[INFO] running `Command { std: "docker" "start" "-a" "5b196a425ee1ab71c9c8c652e706ca042c6fb2770605b041da4b1dabc0fea8c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.7.1
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]    Compiling libm v0.2.16
[INFO] [stderr]    Compiling rug v1.29.0
[INFO] [stderr]    Compiling az v1.3.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling scicrypt-traits v0.7.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(trait_alias)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no associated function or constant named `new_custom` found for struct `ThreadRandState<'a>` in the current scope
[INFO] [stdout]    --> src/randomness.rs:26:26
[INFO] [stdout]     |
[INFO] [stdout]  26 |         ThreadRandState::new_custom(&mut self.rng_wrapper)
[INFO] [stdout]     |                          ^^^^^^^^^^ associated function or constant not found in `ThreadRandState<'_>`
[INFO] [stdout]     |
[INFO] [stdout] note: if you're trying to build a new `ThreadRandState<'_>`, consider using `ThreadRandState::<'_>::from_raw` which returns `ThreadRandState<'static>`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rug-1.29.0/src/rand.rs:752:5
[INFO] [stdout]     |
[INFO] [stdout] 752 |     pub unsafe fn from_raw(raw: randstate_t) -> ThreadRandState<'static> {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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 `scicrypt-traits` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "5b196a425ee1ab71c9c8c652e706ca042c6fb2770605b041da4b1dabc0fea8c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b196a425ee1ab71c9c8c652e706ca042c6fb2770605b041da4b1dabc0fea8c6", kill_on_drop: false }`
[INFO] [stdout] 5b196a425ee1ab71c9c8c652e706ca042c6fb2770605b041da4b1dabc0fea8c6
