[INFO] fetching crate rabbithole 0.3.1...
[INFO] testing rabbithole-0.3.1 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate rabbithole 0.3.1 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate rabbithole 0.3.1
[INFO] finished tweaking crates.io crate rabbithole 0.3.1
[INFO] tweaked toml for crates.io crate rabbithole 0.3.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rabbithole 0.3.1 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 87 packages to latest compatible versions
[INFO] [stderr]       Adding base64 v0.11.0 (available: v0.22.1)
[INFO] [stderr]       Adding env_logger v0.6.2 (available: v0.11.8)
[INFO] [stderr]       Adding http v0.1.21 (available: v1.3.1)
[INFO] [stderr]       Adding lazy_static v1.4.0 (available: v1.5.0)
[INFO] [stderr]       Adding percent-encoding v2.1.0 (available: v2.3.2)
[INFO] [stderr]       Adding pest v2.0.2 (available: v2.8.3)
[INFO] [stderr]       Adding pest_derive v2.0.1 (available: v2.8.3)
[INFO] [stderr]       Adding pest_generator v2.0.0 (available: v2.8.3)
[INFO] [stderr]       Adding pest_meta v2.0.3 (available: v2.8.3)
[INFO] [stderr]       Adding regex v1.3.9 (available: v1.12.2)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[INFO] [stderr]       Adding url v2.1.1 (available: v2.5.7)
[INFO] [stderr]       Adding uuid v0.8.2 (available: v1.18.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7052f6d4aca117b0bacaacf5137342c283a6026ab5a73a07fc78fb82e32af01b
[INFO] running `Command { std: "docker" "start" "-a" "7052f6d4aca117b0bacaacf5137342c283a6026ab5a73a07fc78fb82e32af01b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7052f6d4aca117b0bacaacf5137342c283a6026ab5a73a07fc78fb82e32af01b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7052f6d4aca117b0bacaacf5137342c283a6026ab5a73a07fc78fb82e32af01b", kill_on_drop: false }`
[INFO] [stdout] 7052f6d4aca117b0bacaacf5137342c283a6026ab5a73a07fc78fb82e32af01b
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da921dd1810daf62e1f836713fc30176bbb499dc6392aaf8591bfcc81c8b2056
[INFO] running `Command { std: "docker" "start" "-a" "da921dd1810daf62e1f836713fc30176bbb499dc6392aaf8591bfcc81c8b2056", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling frunk_core v0.3.2
[INFO] [stderr]    Compiling ucd-trie v0.1.7
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]    Compiling aho-corasick v0.7.20
[INFO] [stderr]    Compiling thread_local v1.1.9
[INFO] [stderr]    Compiling pest v2.0.2
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling unicode-segmentation v1.12.0
[INFO] [stderr]    Compiling anyhow v1.0.100
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling pest_meta v2.0.3
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling unicode-normalization v0.1.25
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling unicode-bidi v0.3.18
[INFO] [stderr]    Compiling matches v0.1.10
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling pest_generator v2.0.0
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling frunk_proc_macro_helpers v0.0.5
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling pest_derive v2.0.1
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling strum v0.16.0
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling frunk_proc_macros_impl v0.0.5
[INFO] [stderr]    Compiling frunk_derives v0.3.2
[INFO] [stderr]    Compiling url v2.1.1
[INFO] [stderr]    Compiling http v0.1.21
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling frunk_proc_macros v0.0.5
[INFO] [stderr]    Compiling base64 v0.11.0
[INFO] [stderr]    Compiling frunk v0.3.2
[INFO] [stderr]    Compiling strum_macros v0.16.0
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling rsql-rs v0.2.0
[INFO] [stderr]    Compiling uuid v0.8.2
[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/rsql-rs-0.2.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(backtrace)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `error_generic_member_access`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rsql-rs-0.2.0/src/error.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Error, Debug)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #99301 <https://github.com/rust-lang/rust/issues/99301> for more information
[INFO] [stdout]   = note: this error originates in the derive macro `Error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rsql-rs` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "da921dd1810daf62e1f836713fc30176bbb499dc6392aaf8591bfcc81c8b2056", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da921dd1810daf62e1f836713fc30176bbb499dc6392aaf8591bfcc81c8b2056", kill_on_drop: false }`
[INFO] [stdout] da921dd1810daf62e1f836713fc30176bbb499dc6392aaf8591bfcc81c8b2056
