[INFO] fetching crate enso-prelude 0.2.6...
[INFO] testing enso-prelude-0.2.6 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate enso-prelude 0.2.6 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate enso-prelude 0.2.6
[INFO] finished tweaking crates.io crate enso-prelude 0.2.6
[INFO] tweaked toml for crates.io crate enso-prelude 0.2.6 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate enso-prelude 0.2.6 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 110 packages to latest compatible versions
[INFO] [stderr]       Adding colored v2.2.0 (available: v3.0.0)
[INFO] [stderr]       Adding derive_more v0.99.20 (available: v2.0.1)
[INFO] [stderr]       Adding itertools v0.10.5 (available: v0.14.0)
[INFO] [stderr]       Adding js-sys v0.3.35 (available: v0.3.81)
[INFO] [stderr]       Adding nalgebra v0.26.2 (available: v0.34.1)
[INFO] [stderr]       Adding object v0.24.0 (available: v0.37.3)
[INFO] [stderr]       Adding wasm-bindgen v0.2.58 (available: v0.2.104)
[INFO] [stderr]       Adding wasm-bindgen-backend v0.2.58 (available: v0.2.104)
[INFO] [stderr]       Adding wasm-bindgen-macro v0.2.58 (available: v0.2.104)
[INFO] [stderr]       Adding wasm-bindgen-macro-support v0.2.58 (available: v0.2.104)
[INFO] [stderr]       Adding wasm-bindgen-shared v0.2.58 (available: v0.2.104)
[INFO] [stderr]       Adding wasm-bindgen-test v0.2.50 (available: v0.3.54)
[INFO] [stderr]       Adding wasm-bindgen-webidl v0.2.58 (available: v0.2.75)
[INFO] [stderr]       Adding web-sys v0.3.35 (available: v0.3.81)
[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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 91d0953ac807d5a10359b6a048aa943e736971d3a50c5d45049fb480d4a88a31
[INFO] running `Command { std: "docker" "start" "-a" "91d0953ac807d5a10359b6a048aa943e736971d3a50c5d45049fb480d4a88a31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91d0953ac807d5a10359b6a048aa943e736971d3a50c5d45049fb480d4a88a31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91d0953ac807d5a10359b6a048aa943e736971d3a50c5d45049fb480d4a88a31", kill_on_drop: false }`
[INFO] [stdout] 91d0953ac807d5a10359b6a048aa943e736971d3a50c5d45049fb480d4a88a31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 4ed6b91fdd126019316c2aa3438e9fe87766e719c8073259ea234c45505dcb70
[INFO] running `Command { std: "docker" "start" "-a" "4ed6b91fdd126019316c2aa3438e9fe87766e719c8073259ea234c45505dcb70", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.58
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling bumpalo v3.19.0
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling wasm-bindgen v0.2.58
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling matrixmultiply v0.3.10
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling sourcefile v0.1.4
[INFO] [stderr]    Compiling gimli v0.32.3
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling enso-macro-utils v0.2.0
[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/enso-macro-utils-0.2.0/src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(trait_alias)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr] error: could not compile `enso-macro-utils` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "4ed6b91fdd126019316c2aa3438e9fe87766e719c8073259ea234c45505dcb70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ed6b91fdd126019316c2aa3438e9fe87766e719c8073259ea234c45505dcb70", kill_on_drop: false }`
[INFO] [stdout] 4ed6b91fdd126019316c2aa3438e9fe87766e719c8073259ea234c45505dcb70