[INFO] fetching crate workspacer-check-crates-io 0.1.3...
[INFO] testing workspacer-check-crates-io-0.1.3 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate workspacer-check-crates-io 0.1.3 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate workspacer-check-crates-io 0.1.3
[INFO] finished tweaking crates.io crate workspacer-check-crates-io 0.1.3
[INFO] tweaked toml for crates.io crate workspacer-check-crates-io 0.1.3 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate workspacer-check-crates-io 0.1.3 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate workspacer-check-crates-io 0.1.3 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-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a2c6d80d28392c8b28acc8d57894bc26ae29ffbb8dffea3a68be6b8485426da6
[INFO] running `Command { std: "docker" "start" "-a" "a2c6d80d28392c8b28acc8d57894bc26ae29ffbb8dffea3a68be6b8485426da6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2c6d80d28392c8b28acc8d57894bc26ae29ffbb8dffea3a68be6b8485426da6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2c6d80d28392c8b28acc8d57894bc26ae29ffbb8dffea3a68be6b8485426da6", kill_on_drop: false }`
[INFO] [stdout] a2c6d80d28392c8b28acc8d57894bc26ae29ffbb8dffea3a68be6b8485426da6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c1907261af9ddf3f9cc4c06a17eb796ba52f6fe1f8553dd0f47ed9c7d9840be
[INFO] running `Command { std: "docker" "start" "-a" "8c1907261af9ddf3f9cc4c06a17eb796ba52f6fe1f8553dd0f47ed9c7d9840be", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling tokio v1.44.1
[INFO] [stderr]    Compiling export-magic v0.3.6
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling cc v1.2.17
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling crossbeam-channel v0.5.14
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling tracing-subscriber v0.3.19
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling instant v0.1.13
[INFO] [stderr]    Compiling time v0.3.41
[INFO] [stderr]    Compiling rustix v1.0.3
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling linux-raw-sys v0.9.3
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling indexmap v2.8.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling proc-macro-error-attr2 v2.0.0
[INFO] [stderr]    Compiling tempfile v3.19.1
[INFO] [stderr]    Compiling memoffset v0.9.1
[INFO] [stderr]    Compiling case v0.1.0
[INFO] [stderr]    Compiling anstream v0.6.18
[INFO] [stderr]    Compiling proc-macro-error2 v2.0.1
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling language-enum v0.1.0
[INFO] [stderr]    Compiling serial_test_derive v0.5.1
[INFO] [stderr]    Compiling itertools v0.12.1
[INFO] [stderr]    Compiling env_filter v0.1.3
[INFO] [stderr]    Compiling derive-error v0.0.5
[INFO] [stderr]    Compiling rustls v0.23.25
[INFO] [stderr]    Compiling jiff v0.2.5
[INFO] [stderr]    Compiling ucd-trie v0.1.7
[INFO] [stderr]    Compiling tokio-util v0.7.14
[INFO] [stderr]    Compiling zeroize v1.8.1
[INFO] [stderr]    Compiling unicode-properties v0.1.3
[INFO] [stderr]    Compiling chrono v0.4.40
[INFO] [stderr]    Compiling error-tree v0.6.0
[INFO] [stderr]    Compiling pest v2.8.0
[INFO] [stderr]    Compiling named-item v0.6.0
[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/named-item-0.6.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(associated_type_defaults)]
[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 `named-item` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "8c1907261af9ddf3f9cc4c06a17eb796ba52f6fe1f8553dd0f47ed9c7d9840be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c1907261af9ddf3f9cc4c06a17eb796ba52f6fe1f8553dd0f47ed9c7d9840be", kill_on_drop: false }`
[INFO] [stdout] 8c1907261af9ddf3f9cc4c06a17eb796ba52f6fe1f8553dd0f47ed9c7d9840be
