[INFO] fetching crate xray-tracing 0.0.1...
[INFO] testing xray-tracing-0.0.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate xray-tracing 0.0.1 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate xray-tracing 0.0.1
[INFO] finished tweaking crates.io crate xray-tracing 0.0.1
[INFO] tweaked toml for crates.io crate xray-tracing 0.0.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate xray-tracing 0.0.1 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 xray-tracing 0.0.1 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] 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] 3c440c48c18ab335f91fd08be9eab1e2df8d980e9d7dd2418cdca1aefd01f38c
[INFO] running `Command { std: "docker" "start" "-a" "3c440c48c18ab335f91fd08be9eab1e2df8d980e9d7dd2418cdca1aefd01f38c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c440c48c18ab335f91fd08be9eab1e2df8d980e9d7dd2418cdca1aefd01f38c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c440c48c18ab335f91fd08be9eab1e2df8d980e9d7dd2418cdca1aefd01f38c", kill_on_drop: false }`
[INFO] [stdout] 3c440c48c18ab335f91fd08be9eab1e2df8d980e9d7dd2418cdca1aefd01f38c
[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] 7fe86dd3fb5d144c9361adef4aeba4a4a97b215bd734d19649f1679e98da1a04
[INFO] running `Command { std: "docker" "start" "-a" "7fe86dd3fb5d144c9361adef4aeba4a4a97b215bd734d19649f1679e98da1a04", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling serde v1.0.171
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling thiserror v1.0.43
[INFO] [stderr]    Compiling overload v0.1.1
[INFO] [stderr]    Compiling log v0.4.19
[INFO] [stderr]    Compiling serde_json v1.0.103
[INFO] [stderr]    Compiling itoa v1.0.9
[INFO] [stderr]    Compiling pin-project-lite v0.2.10
[INFO] [stderr]    Compiling ryu v1.0.15
[INFO] [stderr]    Compiling sharded-slab v0.1.4
[INFO] [stderr]    Compiling bytes v1.4.0
[INFO] [stderr]    Compiling smallvec v1.11.0
[INFO] [stderr]    Compiling nu-ansi-term v0.46.0
[INFO] [stderr]    Compiling tracing-core v0.1.31
[INFO] [stderr]    Compiling thread_local v1.1.7
[INFO] [stderr]    Compiling http v0.2.9
[INFO] [stderr]    Compiling tracing-log v0.1.3
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling tracing-subscriber v0.3.17
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling quote v1.0.31
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling syn v2.0.26
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling tracing-attributes v0.1.26
[INFO] [stderr]    Compiling thiserror-impl v1.0.43
[INFO] [stderr]    Compiling serde_derive v1.0.171
[INFO] [stderr]    Compiling tracing v0.1.37
[INFO] [stderr]    Compiling xray-tracing v0.0.1 (/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(is_some_and)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `is_some_and` has been stable since 1.70.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(is_some_and)]
[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 `xray-tracing` (lib) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "7fe86dd3fb5d144c9361adef4aeba4a4a97b215bd734d19649f1679e98da1a04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fe86dd3fb5d144c9361adef4aeba4a4a97b215bd734d19649f1679e98da1a04", kill_on_drop: false }`
[INFO] [stdout] 7fe86dd3fb5d144c9361adef4aeba4a4a97b215bd734d19649f1679e98da1a04