[INFO] fetching crate tesseract-protocol-substrate 0.5.6...
[INFO] testing tesseract-protocol-substrate-0.5.6 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate tesseract-protocol-substrate 0.5.6 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate tesseract-protocol-substrate 0.5.6
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate tesseract-protocol-substrate 0.5.6
[INFO] tweaked toml for crates.io crate tesseract-protocol-substrate 0.5.6 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tesseract-protocol-substrate 0.5.6 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 412 packages to latest compatible versions
[INFO] [stderr]       Adding curve25519-dalek v3.2.0 (available: v3.2.1)
[INFO] [stderr]       Adding frame-metadata v15.1.0 (available: v15.2.0)
[INFO] [stderr]       Adding pallet-contracts-primitives v8.0.0 (available: v29.0.0)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] [stderr]       Adding sp-weights v5.0.0 (available: v33.0.0)
[INFO] [stderr]       Adding subtle v2.4.1 (available: v2.6.1)
[INFO] [stderr]       Adding subxt v0.25.0 (available: v0.44.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 64b8f7caad95868e200a96e96f634cf7f5f14bb4cd38d4f3324f959f815390d3
[INFO] running `Command { std: "docker" "start" "-a" "64b8f7caad95868e200a96e96f634cf7f5f14bb4cd38d4f3324f959f815390d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64b8f7caad95868e200a96e96f634cf7f5f14bb4cd38d4f3324f959f815390d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64b8f7caad95868e200a96e96f634cf7f5f14bb4cd38d4f3324f959f815390d3", kill_on_drop: false }`
[INFO] [stdout] 64b8f7caad95868e200a96e96f634cf7f5f14bb4cd38d4f3324f959f815390d3
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 58bc33bd0e67adad9b6a92b9f60b090e9e4e01bb05bb5baef1c31f472458064a
[INFO] running `Command { std: "docker" "start" "-a" "58bc33bd0e67adad9b6a92b9f60b090e9e4e01bb05bb5baef1c31f472458064a", kill_on_drop: false }`
[INFO] [stderr]    Compiling half v1.8.3
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling tesseract-one v0.5.6
[INFO] [stderr]    Compiling tesseract-protocol-substrate v0.5.6 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![feature(async_closure)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]    |
[INFO] [stdout]    = help: the feature `async_closure` has been stable since `1.85.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `async_closure` has been stable since 1.85.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![feature(async_closure)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tesseract-protocol-substrate` (lib) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "58bc33bd0e67adad9b6a92b9f60b090e9e4e01bb05bb5baef1c31f472458064a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58bc33bd0e67adad9b6a92b9f60b090e9e4e01bb05bb5baef1c31f472458064a", kill_on_drop: false }`
[INFO] [stdout] 58bc33bd0e67adad9b6a92b9f60b090e9e4e01bb05bb5baef1c31f472458064a