[INFO] fetching crate wray 0.1.0...
[INFO] testing wray-0.1.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate wray 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] removed /workspace/builds/worker-7-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate wray 0.1.0
[INFO] finished tweaking crates.io crate wray 0.1.0
[INFO] tweaked toml for crates.io crate wray 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate wray 0.1.0 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate wray 0.1.0 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-2026-04-21" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ea41f195b9f6ad735bf8f9acca5db0c5333ea636e9de1c9156ca009bf7168588
[INFO] running `Command { std: "docker" "start" "-a" "ea41f195b9f6ad735bf8f9acca5db0c5333ea636e9de1c9156ca009bf7168588", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea41f195b9f6ad735bf8f9acca5db0c5333ea636e9de1c9156ca009bf7168588", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea41f195b9f6ad735bf8f9acca5db0c5333ea636e9de1c9156ca009bf7168588", kill_on_drop: false }`
[INFO] [stdout] ea41f195b9f6ad735bf8f9acca5db0c5333ea636e9de1c9156ca009bf7168588
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 829efd22030eb37f6cee13a2ffb4712fb9bc50c9f217e6c166d3906b80f7e7e3
[INFO] running `Command { std: "docker" "start" "-a" "829efd22030eb37f6cee13a2ffb4712fb9bc50c9f217e6c166d3906b80f7e7e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling zerocopy v0.8.38
[INFO] [stderr]    Compiling libc v0.2.180
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling arrow-schema v57.3.0
[INFO] [stderr]    Compiling lexical-util v1.0.7
[INFO] [stderr]    Compiling semver v1.0.27
[INFO] [stderr]    Compiling zstd-safe v7.2.4
[INFO] [stderr]    Compiling quote v1.0.44
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling flatbuffers v25.12.19
[INFO] [stderr]    Compiling lexical-write-integer v1.0.6
[INFO] [stderr]    Compiling lexical-parse-integer v1.0.6
[INFO] [stderr]    Compiling regex-syntax v0.8.9
[INFO] [stderr]    Compiling lexical-parse-float v1.0.6
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling chrono v0.4.43
[INFO] [stderr]    Compiling jobserver v0.1.34
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling cc v1.2.55
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling lexical-write-float v1.0.6
[INFO] [stderr]    Compiling twox-hash v2.1.2
[INFO] [stderr]    Compiling lz4_flex v0.12.0
[INFO] [stderr]    Compiling lexical-core v1.0.6
[INFO] [stderr]    Compiling atoi v2.0.0
[INFO] [stderr]    Compiling ryu v1.0.22
[INFO] [stderr]    Compiling uom v0.38.0
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling zstd-sys v2.0.16+zstd.1.5.7
[INFO] [stderr]    Compiling zerocopy-derive v0.8.38
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]    Compiling zstd v0.13.3
[INFO] [stderr]    Compiling half v2.7.1
[INFO] [stderr]    Compiling arrow-buffer v57.3.0
[INFO] [stderr]    Compiling arrow-data v57.3.0
[INFO] [stderr]    Compiling arrow-array v57.3.0
[INFO] [stderr]    Compiling arrow-select v57.3.0
[INFO] [stderr]    Compiling arrow-arith v57.3.0
[INFO] [stderr]    Compiling arrow-row v57.3.0
[INFO] [stderr]    Compiling arrow-ord v57.3.0
[INFO] [stderr]    Compiling arrow-ipc v57.3.0
[INFO] [stderr]    Compiling arrow-string v57.3.0
[INFO] [stderr]    Compiling arrow-cast v57.3.0
[INFO] [stderr]    Compiling arrow v57.3.0
[INFO] [stderr]    Compiling wray v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | #![feature(iter_collect_into)]
[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 `wray` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "829efd22030eb37f6cee13a2ffb4712fb9bc50c9f217e6c166d3906b80f7e7e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "829efd22030eb37f6cee13a2ffb4712fb9bc50c9f217e6c166d3906b80f7e7e3", kill_on_drop: false }`
[INFO] [stdout] 829efd22030eb37f6cee13a2ffb4712fb9bc50c9f217e6c166d3906b80f7e7e3
