[INFO] fetching crate xdg-portal 0.2.0...
[INFO] testing xdg-portal-0.2.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate xdg-portal 0.2.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate xdg-portal 0.2.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate xdg-portal 0.2.0
[INFO] tweaked toml for crates.io crate xdg-portal 0.2.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate xdg-portal 0.2.0 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] crate crates.io crate xdg-portal 0.2.0 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-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] a52ad80ef64c3d54fdc3668f3d45e3462c627e3662af29a7fbce0f5d9a9f1ed5
[INFO] running `Command { std: "docker" "start" "-a" "a52ad80ef64c3d54fdc3668f3d45e3462c627e3662af29a7fbce0f5d9a9f1ed5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a52ad80ef64c3d54fdc3668f3d45e3462c627e3662af29a7fbce0f5d9a9f1ed5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a52ad80ef64c3d54fdc3668f3d45e3462c627e3662af29a7fbce0f5d9a9f1ed5", kill_on_drop: false }`
[INFO] [stdout] a52ad80ef64c3d54fdc3668f3d45e3462c627e3662af29a7fbce0f5d9a9f1ed5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] a224f4e600211b00c76319954a907c82b12fc233fa814452daef3b065f9394eb
[INFO] running `Command { std: "docker" "start" "-a" "a224f4e600211b00c76319954a907c82b12fc233fa814452daef3b065f9394eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling winnow v0.7.4
[INFO] [stderr]    Compiling hashbrown v0.15.2
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling endi v1.1.0
[INFO] [stderr]    Compiling memoffset v0.9.1
[INFO] [stderr]    Compiling nix v0.29.0
[INFO] [stderr]    Compiling once_cell v1.21.1
[INFO] [stderr]    Compiling bitflags v2.9.0
[INFO] [stderr]    Compiling futures-lite v2.6.0
[INFO] [stderr]    Compiling ordered-stream v0.2.0
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling tracing-core v0.1.33
[INFO] [stderr]    Compiling concurrent-queue v2.5.0
[INFO] [stderr]    Compiling indexmap v2.8.0
[INFO] [stderr]    Compiling event-listener v5.4.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling event-listener-strategy v0.5.3
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling async-broadcast v0.7.2
[INFO] [stderr]    Compiling toml_edit v0.22.24
[INFO] [stderr]    Compiling mio v1.0.3
[INFO] [stderr]    Compiling signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling socket2 v0.5.8
[INFO] [stderr]    Compiling xdg-home v1.3.0
[INFO] [stderr]    Compiling tokio v1.44.1
[INFO] [stderr]    Compiling proc-macro-crate v3.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling enumflags2_derive v0.7.11
[INFO] [stderr]    Compiling tracing-attributes v0.1.28
[INFO] [stderr]    Compiling serde_repr v0.1.20
[INFO] [stderr]    Compiling async-trait v0.1.87
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling zvariant_utils v3.2.0
[INFO] [stderr]    Compiling enumflags2 v0.7.11
[INFO] [stderr]    Compiling zvariant_derive v5.4.0
[INFO] [stderr]    Compiling zvariant v5.4.0
[INFO] [stderr]    Compiling zbus_names v4.2.0
[INFO] [stderr]    Compiling zbus_macros v5.5.0
[INFO] [stderr]    Compiling zbus v5.5.0
[INFO] [stderr]    Compiling xdg-portal v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(cell_update)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `cell_update` has been stable since 1.88.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(cell_update)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `xdg-portal` (lib) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "a224f4e600211b00c76319954a907c82b12fc233fa814452daef3b065f9394eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a224f4e600211b00c76319954a907c82b12fc233fa814452daef3b065f9394eb", kill_on_drop: false }`
[INFO] [stdout] a224f4e600211b00c76319954a907c82b12fc233fa814452daef3b065f9394eb
