[INFO] fetching crate pumpkindb_mio_server 0.2.0...
[INFO] testing pumpkindb_mio_server-0.2.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate pumpkindb_mio_server 0.2.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate pumpkindb_mio_server 0.2.0
[INFO] finished tweaking crates.io crate pumpkindb_mio_server 0.2.0
[INFO] tweaked toml for crates.io crate pumpkindb_mio_server 0.2.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pumpkindb_mio_server 0.2.0 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]     Updating crates.io index
[INFO] [stderr]      Locking 116 packages to latest compatible versions
[INFO] [stderr]       Adding log v0.3.9 (available: v0.4.28)
[INFO] [stderr]       Adding log4rs v0.6.3 (available: v1.4.0)
[INFO] [stderr]       Adding memmap v0.5.2 (available: v0.7.0)
[INFO] [stderr]       Adding mio v0.6.23 (available: v1.1.0)
[INFO] [stderr]       Adding num-bigint v0.1.45 (available: v0.4.6)
[INFO] [stderr]       Adding num-traits v0.1.43 (available: v0.2.19)
[INFO] [stderr]       Adding rand v0.3.23 (available: v0.9.2)
[INFO] [stderr]       Adding slab v0.3.0 (available: v0.4.11)
[INFO] [stderr]       Adding uuid v0.4.0 (available: v1.18.1)
[INFO] [stderr]       Adding wasi v0.10.0+wasi-snapshot-preview1 (available: v0.10.2+wasi-snapshot-preview1)
[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] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 0232d3750d6ea2bff60e8b72a5c3299a4d6d48b085aca4eca5052b7d138a531f
[INFO] running `Command { std: "docker" "start" "-a" "0232d3750d6ea2bff60e8b72a5c3299a4d6d48b085aca4eca5052b7d138a531f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0232d3750d6ea2bff60e8b72a5c3299a4d6d48b085aca4eca5052b7d138a531f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0232d3750d6ea2bff60e8b72a5c3299a4d6d48b085aca4eca5052b7d138a531f", kill_on_drop: false }`
[INFO] [stdout] 0232d3750d6ea2bff60e8b72a5c3299a4d6d48b085aca4eca5052b7d138a531f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] c132584045b9be9c2803878b44d7b77e1c858f1989672e3df77112a3b8243381
[INFO] running `Command { std: "docker" "start" "-a" "c132584045b9be9c2803878b44d7b77e1c858f1989672e3df77112a3b8243381", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling serde v0.9.15
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling unreachable v0.1.1
[INFO] [stderr]    Compiling liblmdb-sys v0.2.2
[INFO] [stderr]    Compiling num-bigint v0.1.45
[INFO] [stderr]    Compiling linked-hash-map v0.3.0
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling dtoa v0.4.8
[INFO] [stderr]    Compiling ucd-util v0.1.10
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling itoa v0.3.4
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling hex-slice v0.1.4
[INFO] [stderr]    Compiling ordered-float v0.4.0
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling serde_bytes v0.10.5
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling byteorder v0.5.3
[INFO] [stderr]    Compiling utf8-ranges v1.0.5
[INFO] [stderr]    Compiling yaml-rust v0.3.5
[INFO] [stderr]    Compiling antidote v1.0.0
[INFO] [stderr]    Compiling supercow v0.1.0
[INFO] [stderr]    Compiling bitflags v0.9.1
[INFO] [stderr]    Compiling sha1 v0.2.0
[INFO] [stderr]    Compiling nom v2.2.1
[INFO] [stderr]    Compiling log-mdc v0.1.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling serde_cbor v0.6.1
[INFO] [stderr]    Compiling snowflake v1.3.0
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling slab v0.3.0
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling num v0.1.43
[INFO] [stderr]    Compiling config v0.3.1
[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/config-0.3.1/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(drop_types_in_const)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `drop_types_in_const` has been stable since `1.22.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[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/config-0.3.1/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(trace_macros)]
[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 `config` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c132584045b9be9c2803878b44d7b77e1c858f1989672e3df77112a3b8243381", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c132584045b9be9c2803878b44d7b77e1c858f1989672e3df77112a3b8243381", kill_on_drop: false }`
[INFO] [stdout] c132584045b9be9c2803878b44d7b77e1c858f1989672e3df77112a3b8243381