[INFO] fetching crate seed_comp_helpers 0.0.3...
[INFO] testing seed_comp_helpers-0.0.3 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate seed_comp_helpers 0.0.3 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate seed_comp_helpers 0.0.3
[INFO] finished tweaking crates.io crate seed_comp_helpers 0.0.3
[INFO] tweaked toml for crates.io crate seed_comp_helpers 0.0.3 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate seed_comp_helpers 0.0.3 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]      Locking 80 packages to latest compatible versions
[INFO] [stderr]       Adding comp_state v0.0.6 (available: v0.2.8)
[INFO] [stderr]       Adding seed v0.5.1 (available: v0.10.0)
[INFO] [stderr]       Adding wasi v0.10.0+wasi-snapshot-preview1 (available: v0.10.2+wasi-snapshot-preview1)
[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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 3c47fe2d4fa8bb599ec4bde66fd7af05a072e76d859d9779b0be58bc3cb4de68
[INFO] running `Command { std: "docker" "start" "-a" "3c47fe2d4fa8bb599ec4bde66fd7af05a072e76d859d9779b0be58bc3cb4de68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c47fe2d4fa8bb599ec4bde66fd7af05a072e76d859d9779b0be58bc3cb4de68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c47fe2d4fa8bb599ec4bde66fd7af05a072e76d859d9779b0be58bc3cb4de68", kill_on_drop: false }`
[INFO] [stdout] 3c47fe2d4fa8bb599ec4bde66fd7af05a072e76d859d9779b0be58bc3cb4de68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] db877cae37c7ea9653545446299cf9bc1e26f05658545fe45c13a4c78b9cbb9e
[INFO] running `Command { std: "docker" "start" "-a" "db877cae37c7ea9653545446299cf9bc1e26f05658545fe45c13a4c78b9cbb9e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.12
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling proc-macro-error v0.4.12
[INFO] [stderr]    Compiling wasm-bindgen v0.2.104
[INFO] [stderr]    Compiling matches v0.1.10
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling pulldown-cmark v0.6.1
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling seed v0.5.1
[INFO] [stderr]    Compiling getopts v0.2.24
[INFO] [stderr]    Compiling enclose v1.2.1
[INFO] [stderr]    Compiling slotmap v0.4.3
[INFO] [stderr]    Compiling anymap v0.12.1
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling dbg v1.0.4
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling cookie v0.12.0
[INFO] [stderr]    Compiling syn-mid v0.5.4
[INFO] [stderr]    Compiling topo-macro v0.9.0
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.104
[INFO] [stderr]    Compiling illicit-macro v0.9.0
[INFO] [stderr]    Compiling illicit v0.9.2
[INFO] [stderr]    Compiling topo v0.9.4
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling futures-macro v0.3.31
[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/topo-0.9.4/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(track_caller)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `track_caller` has been stable since `1.46.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `topo` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "db877cae37c7ea9653545446299cf9bc1e26f05658545fe45c13a4c78b9cbb9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db877cae37c7ea9653545446299cf9bc1e26f05658545fe45c13a4c78b9cbb9e", kill_on_drop: false }`
[INFO] [stdout] db877cae37c7ea9653545446299cf9bc1e26f05658545fe45c13a4c78b9cbb9e