[INFO] fetching crate hybrid-api 0.1.3...
[INFO] testing hybrid-api-0.1.3 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate hybrid-api 0.1.3 into /workspace/builds/worker-2-tc1/source
[INFO] removed /workspace/builds/worker-2-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate hybrid-api 0.1.3
[INFO] finished tweaking crates.io crate hybrid-api 0.1.3
[INFO] tweaked toml for crates.io crate hybrid-api 0.1.3 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate hybrid-api 0.1.3 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 389 packages to latest compatible versions
[INFO] [stderr]       Adding frame-metadata v15.1.0 (available: v15.2.0)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[INFO] [stderr]       Adding tokio-tungstenite v0.21.0 (available: v0.28.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 284c9e9be4018524c2006e1adce0058779673ced9540ed62dfd0c59cdd91ca4d
[INFO] running `Command { std: "docker" "start" "-a" "284c9e9be4018524c2006e1adce0058779673ced9540ed62dfd0c59cdd91ca4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "284c9e9be4018524c2006e1adce0058779673ced9540ed62dfd0c59cdd91ca4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "284c9e9be4018524c2006e1adce0058779673ced9540ed62dfd0c59cdd91ca4d", kill_on_drop: false }`
[INFO] [stdout] 284c9e9be4018524c2006e1adce0058779673ced9540ed62dfd0c59cdd91ca4d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e447c6869c46683ddd9262cf500cb3214f3ff9e6b5a488230becacd83527cf0
[INFO] running `Command { std: "docker" "start" "-a" "9e447c6869c46683ddd9262cf500cb3214f3ff9e6b5a488230becacd83527cf0", kill_on_drop: false }`
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[INFO] [stderr]    Compiling frame-metadata v15.1.0
[INFO] [stderr]    Compiling frame-metadata v16.0.0
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling tokio-tungstenite v0.21.0
[INFO] [stderr]    Compiling scale-typegen v0.1.1
[INFO] [stderr]    Compiling jsonrpsee-core v0.21.0
[INFO] [stderr]    Compiling tokio-rustls v0.24.1
[INFO] [stderr]    Compiling subxt-metadata v0.34.0
[INFO] [stderr]    Compiling scale-decode v0.10.0
[INFO] [stderr]    Compiling scale-encode v0.5.0
[INFO] [stderr]    Compiling h2 v0.3.27
[INFO] [stderr]    Compiling jsonrpsee-client-transport v0.21.0
[INFO] [stderr]    Compiling jsonrpsee v0.21.0
[INFO] [stderr]    Compiling scale-value v0.13.0
[INFO] [stderr]    Compiling hyper v0.14.32
[INFO] [stderr]    Compiling hyper-rustls v0.24.2
[INFO] [stderr]    Compiling jsonrpsee-http-client v0.21.0
[INFO] [stderr]    Compiling subxt-codegen v0.34.0
[INFO] [stderr]    Compiling subxt-macro v0.34.0
[INFO] [stderr]    Compiling subxt v0.34.0
[INFO] [stderr]    Compiling hybrid-indexer v0.5.4
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/hybrid-indexer-0.5.4/src/substrate.rs:350:31
[INFO] [stdout]     |
[INFO] [stdout] 350 |     let mut current_span = if let Some(span) = spans.last()
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hybrid-indexer` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "9e447c6869c46683ddd9262cf500cb3214f3ff9e6b5a488230becacd83527cf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e447c6869c46683ddd9262cf500cb3214f3ff9e6b5a488230becacd83527cf0", kill_on_drop: false }`
[INFO] [stdout] 9e447c6869c46683ddd9262cf500cb3214f3ff9e6b5a488230becacd83527cf0
