[INFO] fetching crate perspective-viewer 4.0.0...
[INFO] testing perspective-viewer-4.0.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate perspective-viewer 4.0.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate perspective-viewer 4.0.0
[INFO] finished tweaking crates.io crate perspective-viewer 4.0.0
[INFO] tweaked toml for crates.io crate perspective-viewer 4.0.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate perspective-viewer 4.0.0 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 perspective-viewer 4.0.0 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" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 2 packages to latest compatible versions
[INFO] [stderr]       Adding perspective-client v4.0.0
[INFO] [stderr]       Adding perspective-js v4.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] dec099bb72574dc4720723ef1f8e65da44eda169465c5cbdd1adc14e73d7279b
[INFO] running `Command { std: "docker" "start" "-a" "dec099bb72574dc4720723ef1f8e65da44eda169465c5cbdd1adc14e73d7279b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dec099bb72574dc4720723ef1f8e65da44eda169465c5cbdd1adc14e73d7279b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dec099bb72574dc4720723ef1f8e65da44eda169465c5cbdd1adc14e73d7279b", kill_on_drop: false }`
[INFO] [stdout] dec099bb72574dc4720723ef1f8e65da44eda169465c5cbdd1adc14e73d7279b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] b864e8c4da2309048c6ed2a61caf5fdd68d07ca6f947bdae1ba40c6ed6b3ab9e
[INFO] running `Command { std: "docker" "start" "-a" "b864e8c4da2309048c6ed2a61caf5fdd68d07ca6f947bdae1ba40c6ed6b3ab9e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling serde v1.0.202
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.100
[INFO] [stderr]    Compiling serde_json v1.0.117
[INFO] [stderr]    Compiling bumpalo v3.16.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.100
[INFO] [stderr]    Compiling either v1.12.0
[INFO] [stderr]    Compiling anyhow v1.0.86
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]    Compiling indexmap v2.2.6
[INFO] [stderr]    Compiling thiserror v1.0.61
[INFO] [stderr]    Compiling regex-syntax v0.8.3
[INFO] [stderr]    Compiling futures-channel v0.3.30
[INFO] [stderr]    Compiling prettyplease v0.2.20
[INFO] [stderr]    Compiling itertools v0.12.1
[INFO] [stderr]    Compiling futures-task v0.3.30
[INFO] [stderr]    Compiling futures-io v0.3.30
[INFO] [stderr]    Compiling rustix v0.38.34
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling bitflags v2.5.0
[INFO] [stderr]    Compiling getrandom v0.3.2
[INFO] [stderr]    Compiling linux-raw-sys v0.4.14
[INFO] [stderr]    Compiling bytes v1.10.1
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling fixedbitset v0.4.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling fastrand v2.1.0
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling quote v1.0.39
[INFO] [stderr]    Compiling petgraph v0.6.5
[INFO] [stderr]    Compiling predicates-core v1.0.6
[INFO] [stderr]    Compiling multimap v0.10.0
[INFO] [stderr]    Compiling toml_datetime v0.6.6
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling syn v2.0.99
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling percent-encoding v2.3.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling float-cmp v0.9.0
[INFO] [stderr]    Compiling normalize-line-endings v0.3.0
[INFO] [stderr]    Compiling termtree v0.4.1
[INFO] [stderr]    Compiling difflib v0.4.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling form_urlencoded v1.2.1
[INFO] [stderr]    Compiling predicates-tree v1.0.9
[INFO] [stderr]    Compiling fragile v2.0.0
[INFO] [stderr]    Compiling downcast v0.11.0
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling termcolor v1.4.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling http v0.2.12
[INFO] [stderr]    Compiling tokio v1.45.1
[INFO] [stderr]    Compiling rand v0.9.1
[INFO] [stderr]    Compiling regex-automata v0.4.6
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling rmp v0.8.14
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling thread_local v1.1.8
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling iana-time-zone v0.1.60
[INFO] [stderr]    Compiling macro_rules_attribute-proc_macro v0.2.0
[INFO] [stderr]    Compiling boolinator v2.4.0
[INFO] [stderr]    Compiling miniz_oxide v0.7.3
[INFO] [stderr]    Compiling chrono v0.4.38
[INFO] [stderr]    Compiling tempfile v3.10.1
[INFO] [stderr]    Compiling rand-unique v0.2.2
[INFO] [stderr]    Compiling macro_rules_attribute v0.2.0
[INFO] [stderr]    Compiling tracing-subscriber v0.3.18
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling flate2 v1.0.30
[INFO] [stderr]    Compiling tokio-stream v0.1.15
[INFO] [stderr]    Compiling regex v1.10.4
[INFO] [stderr]    Compiling predicates v2.1.5
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.100
[INFO] [stderr]    Compiling darling_core v0.20.9
[INFO] [stderr]    Compiling serde_derive v1.0.202
[INFO] [stderr]    Compiling thiserror-impl v1.0.61
[INFO] [stderr]    Compiling prost-derive v0.12.6
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling pin-project-internal v1.1.5
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling ts-rs-macros v11.0.1
[INFO] [stderr]    Compiling gloo-worker-macros v0.1.0
[INFO] [stderr]    Compiling implicit-clone-derive v0.1.1
[INFO] [stderr]    Compiling extend v1.2.0
[INFO] [stderr]    Compiling strum_macros v0.26.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.100
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling pin-project v1.1.5
[INFO] [stderr]    Compiling mockall_derive v0.11.4
[INFO] [stderr]    Compiling wasm-bindgen-derive-macro v0.3.0
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling yew-macro v0.21.0
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.100
[INFO] [stderr]    Compiling darling_macro v0.20.9
[INFO] [stderr]    Compiling prost v0.12.6
[INFO] [stderr]    Compiling prost-types v0.12.6
[INFO] [stderr]    Compiling darling v0.20.9
[INFO] [stderr]    Compiling serde_with_macros v3.8.1
[INFO] [stderr]    Compiling strum v0.26.2
[INFO] [stderr]    Compiling js-intern-core v0.3.1
[INFO] [stderr]    Compiling futures-executor v0.3.30
[INFO] [stderr]    Compiling js-intern-proc-macro v0.3.1
[INFO] [stderr]    Compiling futures v0.3.30
[INFO] [stderr]    Compiling pinned v0.1.0
[INFO] [stderr]    Compiling prokio v0.1.0
[INFO] [stderr]    Compiling prost-build v0.12.6
[INFO] [stderr]    Compiling mockall v0.11.4
[INFO] [stderr]    Compiling procss v0.1.17
[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/procss-0.1.17/src/lib.rs:80:1
[INFO] [stdout]    |
[INFO] [stdout] 80 | #![feature(assert_matches)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/procss-0.1.17/src/lib.rs:81:1
[INFO] [stdout]    |
[INFO] [stdout] 81 | #![feature(path_file_prefix)]
[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 `procss` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b864e8c4da2309048c6ed2a61caf5fdd68d07ca6f947bdae1ba40c6ed6b3ab9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b864e8c4da2309048c6ed2a61caf5fdd68d07ca6f947bdae1ba40c6ed6b3ab9e", kill_on_drop: false }`
[INFO] [stdout] b864e8c4da2309048c6ed2a61caf5fdd68d07ca6f947bdae1ba40c6ed6b3ab9e