[INFO] fetching crate monoio-transports 0.5.3...
[INFO] testing monoio-transports-0.5.3 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate monoio-transports 0.5.3 into /workspace/builds/worker-6-tc2/source
[INFO] removed /workspace/builds/worker-6-tc2/source/rust-toolchain
[INFO] started tweaking crates.io crate monoio-transports 0.5.3
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate monoio-transports 0.5.3
[INFO] tweaked toml for crates.io crate monoio-transports 0.5.3 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate monoio-transports 0.5.3 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 monoio-transports 0.5.3 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-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e226264881dbee83b0c10c9a46aee0960c828956326e52a057c7af622c539522
[INFO] running `Command { std: "docker" "start" "-a" "e226264881dbee83b0c10c9a46aee0960c828956326e52a057c7af622c539522", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e226264881dbee83b0c10c9a46aee0960c828956326e52a057c7af622c539522", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e226264881dbee83b0c10c9a46aee0960c828956326e52a057c7af622c539522", kill_on_drop: false }`
[INFO] [stdout] e226264881dbee83b0c10c9a46aee0960c828956326e52a057c7af622c539522
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d0be70aff13770a6c435c51377bcd930767003cd47702f3d030eb7bb2a837da
[INFO] running `Command { std: "docker" "start" "-a" "5d0be70aff13770a6c435c51377bcd930767003cd47702f3d030eb7bb2a837da", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling proc-macro2 v1.0.82
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]    Compiling io-uring v0.6.3
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling aws-lc-rs v1.7.2
[INFO] [stderr]    Compiling thiserror v1.0.57
[INFO] [stderr]    Compiling tokio v1.36.0
[INFO] [stderr]    Compiling rustls v0.21.10
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling futures-task v0.3.30
[INFO] [stderr]    Compiling itoa v1.0.10
[INFO] [stderr]    Compiling rustls v0.23.8
[INFO] [stderr]    Compiling reusable-box-future v0.2.0
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling param v0.1.2
[INFO] [stderr]    Compiling serde_json v1.0.114
[INFO] [stderr]    Compiling http v1.0.0
[INFO] [stderr]    Compiling ryu v1.0.17
[INFO] [stderr]    Compiling smallvec v1.13.1
[INFO] [stderr]    Compiling service-async v0.2.3
[INFO] [stderr]    Compiling webpki-roots v0.26.1
[INFO] [stderr]    Compiling smol_str v0.2.1
[INFO] [stderr]    Compiling cc v1.0.88
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.61
[INFO] [stderr]    Compiling cmake v0.1.50
[INFO] [stderr]    Compiling ring v0.17.8
[INFO] [stderr]    Compiling local-sync v0.1.1
[INFO] [stderr]    Compiling nix v0.26.4
[INFO] [stderr]    Compiling socket2 v0.5.6
[INFO] [stderr]    Compiling mio v0.8.10
[INFO] [stderr]    Compiling getrandom v0.2.12
[INFO] [stderr]    Compiling tokio-util v0.7.10
[INFO] [stderr]    Compiling aws-lc-sys v0.17.0
[INFO] [stderr]    Compiling rustls-webpki v0.101.7
[INFO] [stderr]    Compiling sct v0.7.1
[INFO] [stderr]    Compiling auto-const-array v0.2.1
[INFO] [stderr]    Compiling monoio-macros v0.1.0
[INFO] [stderr]    Compiling zeroize_derive v1.4.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.57
[INFO] [stderr]    Compiling monoio v0.2.3
[INFO] [stderr]    Compiling zeroize v1.8.1
[INFO] [stderr]    Compiling monoio-io-wrapper v0.1.1
[INFO] [stderr]    Compiling monoio-compat v0.2.1
[INFO] [stderr]    Compiling monoio-codec v0.3.3
[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/monoio-compat-0.2.1/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(new_uninit)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling monoio-rustls v0.3.0
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `monoio-compat` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "5d0be70aff13770a6c435c51377bcd930767003cd47702f3d030eb7bb2a837da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d0be70aff13770a6c435c51377bcd930767003cd47702f3d030eb7bb2a837da", kill_on_drop: false }`
[INFO] [stdout] 5d0be70aff13770a6c435c51377bcd930767003cd47702f3d030eb7bb2a837da