[INFO] fetching crate disk-based-bfs 0.1.0...
[INFO] testing disk-based-bfs-0.1.0 against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate disk-based-bfs 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate disk-based-bfs 0.1.0
[INFO] finished tweaking crates.io crate disk-based-bfs 0.1.0
[INFO] tweaked toml for crates.io crate disk-based-bfs 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate disk-based-bfs 0.1.0 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "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" "+1.100.0-beta.1" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 68 packages to highest compatible versions
[INFO] [stderr]       Adding fs4 v0.12.0 (available: v1.1.0)
[INFO] [stderr]       Adding itertools v0.14.0 (available: v0.15.0)
[INFO] [stderr]       Adding rand v0.8.8 (available: v0.10.3)
[INFO] [stderr]       Adding zstd v0.13.3 (available: v0.14.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "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/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] cbc70088bf7861e25c947bf97a9508db4c6a928e46099c7864152099d265680a
[INFO] running `Command { std: "docker" "start" "cbc70088bf7861e25c947bf97a9508db4c6a928e46099c7864152099d265680a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cbc70088bf7861e25c947bf97a9508db4c6a928e46099c7864152099d265680a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "cbc70088bf7861e25c947bf97a9508db4c6a928e46099c7864152099d265680a" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cbc70088bf7861e25c947bf97a9508db4c6a928e46099c7864152099d265680a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "cbc70088bf7861e25c947bf97a9508db4c6a928e46099c7864152099d265680a" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v3.0.9
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling zstd-safe v7.3.0
[INFO] [stderr]    Compiling syn v2.0.119
[INFO] [stderr]    Compiling serde_json v1.0.154
[INFO] [stderr]    Compiling thiserror v2.0.21
[INFO] [stderr]    Compiling serde v1.0.229
[INFO] [stderr]    Compiling zstd-sys v2.1.2+zstd.1.5.7
[INFO] [stderr]    Compiling either v1.19.0
[INFO] [stderr]    Compiling cityhasher v0.1.0
[INFO] [stderr]    Compiling bytemuck v1.25.2
[INFO] [stderr]    Compiling xxhash-rust v0.8.19
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling thiserror-impl v2.0.21
[INFO] [stderr]    Compiling serde_derive v1.0.229
[INFO] [stderr]    Compiling fs4 v0.12.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling zstd v0.13.3
[INFO] [stderr]    Compiling disk-based-bfs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(buf_read_has_data_left)]
[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 `disk-based-bfs` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "cbc70088bf7861e25c947bf97a9508db4c6a928e46099c7864152099d265680a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbc70088bf7861e25c947bf97a9508db4c6a928e46099c7864152099d265680a", kill_on_drop: false }`
[INFO] [stdout] cbc70088bf7861e25c947bf97a9508db4c6a928e46099c7864152099d265680a
