[INFO] fetching crate engula-client 0.4.0...
[INFO] testing engula-client-0.4.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate engula-client 0.4.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate engula-client 0.4.0
[INFO] finished tweaking crates.io crate engula-client 0.4.0
[INFO] tweaked toml for crates.io crate engula-client 0.4.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate engula-client 0.4.0 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 engula-client 0.4.0 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] f6318734d35af346cc7e553cba7269b745cc7783f20608cd248aa992100bc23b
[INFO] running `Command { std: "docker" "start" "-a" "f6318734d35af346cc7e553cba7269b745cc7783f20608cd248aa992100bc23b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6318734d35af346cc7e553cba7269b745cc7783f20608cd248aa992100bc23b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6318734d35af346cc7e553cba7269b745cc7783f20608cd248aa992100bc23b", kill_on_drop: false }`
[INFO] [stdout] f6318734d35af346cc7e553cba7269b745cc7783f20608cd248aa992100bc23b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 3146a61fb753df2ed76f932b5574c47c2fa7f0825921fee3708d8afa6ef52f5b
[INFO] running `Command { std: "docker" "start" "-a" "3146a61fb753df2ed76f932b5574c47c2fa7f0825921fee3708d8afa6ef52f5b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling syn v1.0.102
[INFO] [stderr]    Compiling libc v0.2.135
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling futures-core v0.3.24
[INFO] [stderr]    Compiling bytes v1.2.1
[INFO] [stderr]    Compiling either v1.8.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling futures-task v0.3.24
[INFO] [stderr]    Compiling futures-channel v0.3.24
[INFO] [stderr]    Compiling futures-sink v0.3.24
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]    Compiling anyhow v1.0.65
[INFO] [stderr]    Compiling futures-util v0.3.24
[INFO] [stderr]    Compiling futures-io v0.3.24
[INFO] [stderr]    Compiling once_cell v1.15.0
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling itoa v1.0.4
[INFO] [stderr]    Compiling tower-service v0.3.2
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]    Compiling tracing-core v0.1.30
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling fastrand v1.8.0
[INFO] [stderr]    Compiling prettyplease v0.1.20
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]    Compiling http v0.2.8
[INFO] [stderr]    Compiling tower-layer v0.3.2
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling socket2 v0.4.7
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling mio v0.8.4
[INFO] [stderr]    Compiling getrandom v0.2.7
[INFO] [stderr]    Compiling which v4.3.0
[INFO] [stderr]    Compiling fixedbitset v0.4.2
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling cmake v0.1.48
[INFO] [stderr]    Compiling async-trait v0.1.57
[INFO] [stderr]    Compiling try-lock v0.2.3
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling petgraph v0.6.2
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling tempfile v3.3.0
[INFO] [stderr]    Compiling multimap v0.8.3
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling httpdate v1.0.2
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling mime v0.3.16
[INFO] [stderr]    Compiling http-body v0.4.5
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling http-range-header v0.3.0
[INFO] [stderr]    Compiling matchit v0.5.0
[INFO] [stderr]    Compiling percent-encoding v2.2.0
[INFO] [stderr]    Compiling prost-build v0.10.4
[INFO] [stderr]    Compiling sync_wrapper v0.1.1
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stderr]    Compiling regex v1.6.0
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]    Compiling futures-macro v0.3.24
[INFO] [stderr]    Compiling tracing-attributes v0.1.23
[INFO] [stderr]    Compiling prost-derive v0.10.1
[INFO] [stderr]    Compiling pin-project-internal v1.0.12
[INFO] [stderr]    Compiling async-stream-impl v0.3.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.37
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling async-stream v0.3.3
[INFO] [stderr]    Compiling pin-project v1.0.12
[INFO] [stderr]    Compiling prost v0.10.4
[INFO] [stderr]    Compiling tracing v0.1.37
[INFO] [stderr]    Compiling tracing-futures v0.2.5
[INFO] [stderr]    Compiling prost-types v0.10.1
[INFO] [stderr]    Compiling tonic-build v0.7.2
[INFO] [stderr]    Compiling engula-api v0.4.0
[INFO] [stderr]    Compiling axum-core v0.2.8
[INFO] [stderr]    Compiling futures-executor v0.3.24
[INFO] [stderr]    Compiling futures v0.3.24
[INFO] [stderr]    Compiling tokio-util v0.7.4
[INFO] [stderr]    Compiling tokio-io-timeout v1.2.0
[INFO] [stderr]    Compiling tokio-stream v0.1.11
[INFO] [stderr]    Compiling h2 v0.3.14
[INFO] [stderr]    Compiling tower v0.4.13
[INFO] [stderr]    Compiling tower-http v0.3.4
[INFO] [stderr]    Compiling hyper v0.14.20
[INFO] [stderr]    Compiling hyper-timeout v0.4.1
[INFO] [stderr]    Compiling axum v0.5.16
[INFO] [stderr]    Compiling tonic v0.7.2
[INFO] [stderr]    Compiling engula-client v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | #![feature(map_try_insert)]
[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 `engula-client` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "3146a61fb753df2ed76f932b5574c47c2fa7f0825921fee3708d8afa6ef52f5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3146a61fb753df2ed76f932b5574c47c2fa7f0825921fee3708d8afa6ef52f5b", kill_on_drop: false }`
[INFO] [stdout] 3146a61fb753df2ed76f932b5574c47c2fa7f0825921fee3708d8afa6ef52f5b
