[INFO] fetching crate cratchit 0.0.4... [INFO] testing cratchit-0.0.4 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate cratchit 0.0.4 into /workspace/builds/worker-5-tc2/source [INFO] started tweaking crates.io crate cratchit 0.0.4 [INFO] finished tweaking crates.io crate cratchit 0.0.4 [INFO] tweaked toml for crates.io crate cratchit 0.0.4 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate cratchit 0.0.4 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 34 packages to latest compatible versions [INFO] [stderr] Adding cfg-if v0.1.10 (available: v1.0.3) [INFO] [stderr] Adding galvanic-test v0.1.5 (available: v0.2.0) [INFO] [stderr] Adding json v0.11.15 (available: v0.12.4) [INFO] [stderr] Adding wasm-bindgen-test v0.2.50 (available: v0.3.54) [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] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 7a062054e6c35aad48d8708938934c1a32b2550494a62630401498691493d31b [INFO] running `Command { std: "docker" "start" "-a" "7a062054e6c35aad48d8708938934c1a32b2550494a62630401498691493d31b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7a062054e6c35aad48d8708938934c1a32b2550494a62630401498691493d31b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7a062054e6c35aad48d8708938934c1a32b2550494a62630401498691493d31b", kill_on_drop: false }` [INFO] [stdout] 7a062054e6c35aad48d8708938934c1a32b2550494a62630401498691493d31b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 1d9af2d0b74bd7fa8aa30dd7af214f7a625d775890174399d6f5c460a8fd3a01 [INFO] running `Command { std: "docker" "start" "-a" "1d9af2d0b74bd7fa8aa30dd7af214f7a625d775890174399d6f5c460a8fd3a01", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] Compiling unicode-ident v1.0.19 [INFO] [stderr] Compiling wasm-bindgen-shared v0.2.104 [INFO] [stderr] Compiling quote v1.0.41 [INFO] [stderr] Compiling once_cell v1.21.3 [INFO] [stderr] Compiling cfg-if v1.0.3 [INFO] [stderr] Compiling json v0.11.15 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling wasm-bindgen v0.2.104 [INFO] [stderr] Compiling proc-macro2 v1.0.101 [INFO] [stderr] Compiling syn v2.0.106 [INFO] [stderr] Compiling wasm-bindgen-backend v0.2.104 [INFO] [stderr] Compiling wasm-bindgen-macro-support v0.2.104 [INFO] [stderr] Compiling wasm-bindgen-macro v0.2.104 [INFO] [stderr] Compiling console_error_panic_hook v0.1.7 [INFO] [stderr] Compiling cratchit v0.0.4 (/opt/rustwide/workdir) [INFO] [stdout] error[E0557]: feature has been removed [INFO] [stdout] --> src/lib.rs:6:12 [INFO] [stdout] | [INFO] [stdout] 6 | #![feature(custom_attribute)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^ feature has been removed [INFO] [stdout] | [INFO] [stdout] = note: removed in 1.0.0; see for more information [INFO] [stdout] = note: removed in favor of `#![register_tool]` and `#![register_attr]` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0557`. [INFO] [stdout] [INFO] [stderr] error: could not compile `cratchit` (lib) due to 1 previous error [INFO] running `Command { std: "docker" "inspect" "1d9af2d0b74bd7fa8aa30dd7af214f7a625d775890174399d6f5c460a8fd3a01", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1d9af2d0b74bd7fa8aa30dd7af214f7a625d775890174399d6f5c460a8fd3a01", kill_on_drop: false }` [INFO] [stdout] 1d9af2d0b74bd7fa8aa30dd7af214f7a625d775890174399d6f5c460a8fd3a01