[INFO] fetching crate libbitcoin 0.3.0...
[INFO] testing libbitcoin-0.3.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate libbitcoin 0.3.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate libbitcoin 0.3.0
[INFO] finished tweaking crates.io crate libbitcoin 0.3.0
[INFO] tweaked toml for crates.io crate libbitcoin 0.3.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate libbitcoin 0.3.0 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 58 packages to latest compatible versions
[INFO] [stderr]       Adding amplify v3.14.2 (available: v4.9.0)
[INFO] [stderr]       Adding amplify_derive v2.11.3 (available: v4.0.1)
[INFO] [stderr]       Adding bip39 v1.2.0 (available: v2.2.0)
[INFO] [stderr]       Adding bitcoin v0.28.2 (available: v0.32.7)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] [stderr]       Adding serde_with v1.14.0 (available: v3.14.1)
[INFO] [stderr]       Adding serde_with_macros v1.5.2 (available: v3.14.1)
[INFO] [stderr]       Adding unicode-normalization v0.1.9 (available: v0.1.24)
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 60616cddb805f19fbd90b7ddff446d74ff2c6ef8d43434e887d333ff1c682005
[INFO] running `Command { std: "docker" "start" "-a" "60616cddb805f19fbd90b7ddff446d74ff2c6ef8d43434e887d333ff1c682005", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "60616cddb805f19fbd90b7ddff446d74ff2c6ef8d43434e887d333ff1c682005", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60616cddb805f19fbd90b7ddff446d74ff2c6ef8d43434e887d333ff1c682005", kill_on_drop: false }`
[INFO] [stdout] 60616cddb805f19fbd90b7ddff446d74ff2c6ef8d43434e887d333ff1c682005
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 59fbb632008fca54a2943cd140fe2d19787661e5a01461d77f73cbcac710c32f
[INFO] running `Command { std: "docker" "start" "-a" "59fbb632008fca54a2943cd140fe2d19787661e5a01461d77f73cbcac710c32f", kill_on_drop: false }`
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling bitcoin_hashes v0.10.0
[INFO] [stderr]    Compiling amplify_num v0.4.1
[INFO] [stderr]    Compiling bitcoin_hashes v0.11.0
[INFO] [stderr]    Compiling secp256k1-sys v0.5.2
[INFO] [stderr]    Compiling bech32 v0.8.1
[INFO] [stderr]    Compiling amplify_syn v1.1.6
[INFO] [stderr]    Compiling unicode-normalization v0.1.9
[INFO] [stderr]    Compiling darling_core v0.13.4
[INFO] [stderr]    Compiling amplify_derive v2.11.3
[INFO] [stderr]    Compiling amplify v3.14.2
[INFO] [stderr]    Compiling darling_macro v0.13.4
[INFO] [stderr]    Compiling darling v0.13.4
[INFO] [stderr]    Compiling serde_with_macros v1.5.2
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling secp256k1 v0.22.2
[INFO] [stderr]    Compiling bitcoin v0.28.2
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling serde_with v1.14.0
[INFO] [stderr]    Compiling bip39 v1.2.0
[INFO] [stderr]    Compiling libbitcoin v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | #![feature(try_trait_v2)]
[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 `libbitcoin` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "59fbb632008fca54a2943cd140fe2d19787661e5a01461d77f73cbcac710c32f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59fbb632008fca54a2943cd140fe2d19787661e5a01461d77f73cbcac710c32f", kill_on_drop: false }`
[INFO] [stdout] 59fbb632008fca54a2943cd140fe2d19787661e5a01461d77f73cbcac710c32f