[INFO] fetching crate nothing 0.1.12...
[INFO] testing nothing-0.1.12 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate nothing 0.1.12 into /workspace/builds/worker-4-tc2/source
[INFO] removed /workspace/builds/worker-4-tc2/source/rust-toolchain
[INFO] started tweaking crates.io crate nothing 0.1.12
[INFO] finished tweaking crates.io crate nothing 0.1.12
[INFO] tweaked toml for crates.io crate nothing 0.1.12 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate nothing 0.1.12 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate nothing 0.1.12 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" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 518513c20b44a2dba57e8fa53d5320c5e2ebbd5c3b29c3a04ac22512d4347d68
[INFO] running `Command { std: "docker" "start" "-a" "518513c20b44a2dba57e8fa53d5320c5e2ebbd5c3b29c3a04ac22512d4347d68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "518513c20b44a2dba57e8fa53d5320c5e2ebbd5c3b29c3a04ac22512d4347d68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "518513c20b44a2dba57e8fa53d5320c5e2ebbd5c3b29c3a04ac22512d4347d68", kill_on_drop: false }`
[INFO] [stdout] 518513c20b44a2dba57e8fa53d5320c5e2ebbd5c3b29c3a04ac22512d4347d68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d9630b98ccfef867315b00db56469e368c4874d90404f894a37ed88424d42f8
[INFO] running `Command { std: "docker" "start" "-a" "0d9630b98ccfef867315b00db56469e368c4874d90404f894a37ed88424d42f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling pmutil v0.5.3
[INFO] [stderr]    Compiling is-macro v0.2.2
[INFO] [stderr]    Compiling nothing v0.1.12 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![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 `nothing` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "0d9630b98ccfef867315b00db56469e368c4874d90404f894a37ed88424d42f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d9630b98ccfef867315b00db56469e368c4874d90404f894a37ed88424d42f8", kill_on_drop: false }`
[INFO] [stdout] 0d9630b98ccfef867315b00db56469e368c4874d90404f894a37ed88424d42f8