[INFO] fetching crate xg 0.0.10...
[INFO] testing xg-0.0.10 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate xg 0.0.10 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate xg 0.0.10
[INFO] finished tweaking crates.io crate xg 0.0.10
[INFO] tweaked toml for crates.io crate xg 0.0.10 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate xg 0.0.10 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 229 packages to latest compatible versions
[INFO] [stderr]       Adding axum v0.6.20 (available: v0.8.9)
[INFO] [stderr]       Adding pgm v0.0.7 (available: v0.0.8)
[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-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f88c0b7e9cdf7c3b6db2855638b860e16d1a7fd8df91749c85f33b0dcd308431
[INFO] running `Command { std: "docker" "start" "-a" "f88c0b7e9cdf7c3b6db2855638b860e16d1a7fd8df91749c85f33b0dcd308431", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f88c0b7e9cdf7c3b6db2855638b860e16d1a7fd8df91749c85f33b0dcd308431", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f88c0b7e9cdf7c3b6db2855638b860e16d1a7fd8df91749c85f33b0dcd308431", kill_on_drop: false }`
[INFO] [stdout] f88c0b7e9cdf7c3b6db2855638b860e16d1a7fd8df91749c85f33b0dcd308431
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b35212c867471213b6ed64a128e18c38a45b297ab889d8e9dd64ed45cb04f013
[INFO] running `Command { std: "docker" "start" "-a" "b35212c867471213b6ed64a128e18c38a45b297ab889d8e9dd64ed45cb04f013", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.20.0
[INFO] [stderr]    Compiling cmov v0.5.3
[INFO] [stderr]    Compiling aws-lc-rs v1.16.3
[INFO] [stderr]    Compiling const-oid v0.10.2
[INFO] [stderr]    Compiling jobserver v0.1.34
[INFO] [stderr]    Compiling getrandom v0.2.17
[INFO] [stderr]    Compiling static_init_macro v1.0.4
[INFO] [stderr]    Compiling tinyvec v1.11.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling tokio-macros v2.7.0
[INFO] [stderr]    Compiling futures-macro v0.3.32
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling rustls v0.23.39
[INFO] [stderr]    Compiling zeroize v1.8.2
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling ctutils v0.4.2
[INFO] [stderr]    Compiling rustls-pki-types v1.14.1
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling unicode-bidi v0.3.18
[INFO] [stderr]    Compiling unicode-properties v0.1.4
[INFO] [stderr]    Compiling cc v1.2.61
[INFO] [stderr]    Compiling rand v0.10.1
[INFO] [stderr]    Compiling rand_core v0.9.5
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]    Compiling socket2 v0.5.10
[INFO] [stderr]    Compiling fallible-iterator v0.2.0
[INFO] [stderr]    Compiling siphasher v1.0.2
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.25
[INFO] [stderr]    Compiling phf_shared v0.11.3
[INFO] [stderr]    Compiling der v0.7.10
[INFO] [stderr]    Compiling rustls-native-certs v0.8.3
[INFO] [stderr]    Compiling aok v0.1.18
[INFO] [stderr]    Compiling rand v0.9.4
[INFO] [stderr]    Compiling tokio v1.52.1
[INFO] [stderr]    Compiling phf v0.11.3
[INFO] [stderr]    Compiling static_init v1.0.4
[INFO] [stderr]    Compiling cmake v0.1.58
[INFO] [stderr]    Compiling futures-util v0.3.32
[INFO] [stderr]    Compiling hybrid-array v0.4.11
[INFO] [stderr]    Compiling whoami v1.6.1
[INFO] [stderr]    Compiling chrono v0.4.44
[INFO] [stderr]    Compiling stringprep v0.1.5
[INFO] [stderr]    Compiling pem v3.0.6
[INFO] [stderr]    Compiling bcder v0.7.6
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling signature v2.2.0
[INFO] [stderr]    Compiling hidden_password v0.1.5
[INFO] [stderr]    Compiling http-body v0.4.6
[INFO] [stderr]    Compiling spki v0.7.3
[INFO] [stderr]    Compiling axum-core v0.3.4
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling axum v0.6.20
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling serde_path_to_error v0.1.20
[INFO] [stderr]    Compiling matchit v0.7.3
[INFO] [stderr]    Compiling block-buffer v0.12.0
[INFO] [stderr]    Compiling crypto-common v0.2.1
[INFO] [stderr]    Compiling aws-lc-sys v0.40.0
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling digest v0.11.2
[INFO] [stderr]    Compiling md-5 v0.11.0
[INFO] [stderr]    Compiling hmac v0.13.0
[INFO] [stderr]    Compiling sha2 v0.11.0
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling futures-executor v0.3.32
[INFO] [stderr]    Compiling futures v0.3.32
[INFO] [stderr]    Compiling postgres-protocol v0.6.11
[INFO] [stderr]    Compiling postgres-types v0.2.13
[INFO] [stderr]    Compiling tokio-util v0.7.18
[INFO] [stderr]    Compiling trt v0.1.29
[INFO] [stderr]    Compiling regex v1.12.3
[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/trt-0.1.29/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(macro_metavar_expr)]
[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 `trt` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b35212c867471213b6ed64a128e18c38a45b297ab889d8e9dd64ed45cb04f013", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b35212c867471213b6ed64a128e18c38a45b297ab889d8e9dd64ed45cb04f013", kill_on_drop: false }`
[INFO] [stdout] b35212c867471213b6ed64a128e18c38a45b297ab889d8e9dd64ed45cb04f013
