[INFO] fetching crate zju-jw-parser 0.1.5...
[INFO] testing zju-jw-parser-0.1.5 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate zju-jw-parser 0.1.5 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate zju-jw-parser 0.1.5
[INFO] finished tweaking crates.io crate zju-jw-parser 0.1.5
[INFO] tweaked toml for crates.io crate zju-jw-parser 0.1.5 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate zju-jw-parser 0.1.5 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 100 packages to latest compatible versions
[INFO] [stderr]       Adding reformation v0.4.1 (available: v0.5.3)
[INFO] [stderr]       Adding unhtml v0.6.1 (available: v0.8.0)
[INFO] [stderr]       Adding unhtml_derive v0.5.2 (available: v0.8.0)
[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-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b71867597b156b77472df4bfe582a2c3eb04624a69c56d30a36a470c436dc765
[INFO] running `Command { std: "docker" "start" "-a" "b71867597b156b77472df4bfe582a2c3eb04624a69c56d30a36a470c436dc765", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b71867597b156b77472df4bfe582a2c3eb04624a69c56d30a36a470c436dc765", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b71867597b156b77472df4bfe582a2c3eb04624a69c56d30a36a470c436dc765", kill_on_drop: false }`
[INFO] [stdout] b71867597b156b77472df4bfe582a2c3eb04624a69c56d30a36a470c436dc765
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81bfff944ead6bcb6ab8f9402f78b4e6604b03a399ecf1fe51f714f4bec1d815
[INFO] running `Command { std: "docker" "start" "-a" "81bfff944ead6bcb6ab8f9402f78b4e6604b03a399ecf1fe51f714f4bec1d815", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stderr]    Compiling procedural-masquerade v0.1.7
[INFO] [stderr]    Compiling dtoa v1.0.11
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling stable_deref_trait v1.2.1
[INFO] [stderr]    Compiling dtoa-short v0.3.5
[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling servo_arc v0.1.1
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling ego-tree v0.6.3
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
[INFO] [stderr]    Compiling selectors v0.21.0
[INFO] [stderr]    Compiling string_cache v0.7.5
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling backtrace v0.3.76
[INFO] [stderr]    Compiling markup5ever v0.7.5
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling cssparser v0.25.9
[INFO] [stderr]    Compiling cssparser-macros v0.3.6
[INFO] [stderr]    Compiling html5ever v0.22.5
[INFO] [stderr]    Compiling reformation_derive v0.4.1
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling derive_more v0.13.0
[INFO] [stderr]    Compiling reformation v0.4.1
[INFO] [stderr]    Compiling scraper v0.10.1
[INFO] [stderr]    Compiling unhtml v0.6.1
[INFO] [stderr]    Compiling unhtml_derive v0.5.2
[INFO] [stderr]    Compiling zju-jw-parser v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(custom_attribute)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed in 1.0.0; see <https://github.com/rust-lang/rust/pull/66070> 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 `zju-jw-parser` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "81bfff944ead6bcb6ab8f9402f78b4e6604b03a399ecf1fe51f714f4bec1d815", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81bfff944ead6bcb6ab8f9402f78b4e6604b03a399ecf1fe51f714f4bec1d815", kill_on_drop: false }`
[INFO] [stdout] 81bfff944ead6bcb6ab8f9402f78b4e6604b03a399ecf1fe51f714f4bec1d815
