[INFO] fetching crate file-mst 0.2.0...
[INFO] testing file-mst-0.2.0 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate file-mst 0.2.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate file-mst 0.2.0
[INFO] finished tweaking crates.io crate file-mst 0.2.0
[INFO] tweaked toml for crates.io crate file-mst 0.2.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate file-mst 0.2.0 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate file-mst 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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] 6b2bf7343a046fcbb17be5329e1cd79d9dbbe513bd1a16098721b0bdfd746c70
[INFO] running `Command { std: "docker" "start" "6b2bf7343a046fcbb17be5329e1cd79d9dbbe513bd1a16098721b0bdfd746c70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b2bf7343a046fcbb17be5329e1cd79d9dbbe513bd1a16098721b0bdfd746c70", 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" "6b2bf7343a046fcbb17be5329e1cd79d9dbbe513bd1a16098721b0bdfd746c70" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b2bf7343a046fcbb17be5329e1cd79d9dbbe513bd1a16098721b0bdfd746c70", 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" "6b2bf7343a046fcbb17be5329e1cd79d9dbbe513bd1a16098721b0bdfd746c70" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.44
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling semver v1.0.27
[INFO] [stderr]    Compiling find-msvc-tools v0.1.8
[INFO] [stderr]    Compiling rustix v1.1.3
[INFO] [stderr]    Compiling hash32 v0.2.1
[INFO] [stderr]    Compiling bitflags v2.10.0
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling cc v1.2.54
[INFO] [stderr]    Compiling fastrand v2.3.0
[INFO] [stderr]    Compiling arrayvec v0.7.6
[INFO] [stderr]    Compiling constant_time_eq v0.4.2
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling bytes v1.11.0
[INFO] [stderr]    Compiling heapless v0.7.17
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling blake3 v1.8.3
[INFO] [stderr]    Compiling tempfile v3.24.0
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]    Compiling thiserror v2.0.18
[INFO] [stderr]    Compiling cobs v0.3.0
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling postcard v1.1.3
[INFO] [stderr]    Compiling file-mst v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(test)]
[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 `file-mst` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "6b2bf7343a046fcbb17be5329e1cd79d9dbbe513bd1a16098721b0bdfd746c70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b2bf7343a046fcbb17be5329e1cd79d9dbbe513bd1a16098721b0bdfd746c70", kill_on_drop: false }`
[INFO] [stdout] 6b2bf7343a046fcbb17be5329e1cd79d9dbbe513bd1a16098721b0bdfd746c70
