[INFO] cloning repository https://github.com/heaths/akv-cli-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/heaths/akv-cli-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fheaths%2Fakv-cli-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fheaths%2Fakv-cli-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 59825793a5aa51e56455c4b7adafa24ebeae0511
[INFO] testing heaths/akv-cli-rs against beta-2026-04-21 for beta-1.96-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fheaths%2Fakv-cli-rs" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-5-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/heaths/akv-cli-rs
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/heaths/akv-cli-rs
[INFO] tweaked toml for git repo https://github.com/heaths/akv-cli-rs written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/heaths/akv-cli-rs 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 git repo https://github.com/heaths/akv-cli-rs 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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] fd03ada2ecb4d11d195afd900413bcb72ef28cd8a6a5745883f232084a11f5a0
[INFO] running `Command { std: "docker" "start" "-a" "fd03ada2ecb4d11d195afd900413bcb72ef28cd8a6a5745883f232084a11f5a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd03ada2ecb4d11d195afd900413bcb72ef28cd8a6a5745883f232084a11f5a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd03ada2ecb4d11d195afd900413bcb72ef28cd8a6a5745883f232084a11f5a0", kill_on_drop: false }`
[INFO] [stdout] fd03ada2ecb4d11d195afd900413bcb72ef28cd8a6a5745883f232084a11f5a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 221caa5c1249bc43f96123d74287d9978e9a5ceb3e6d0ab99ca531c30472f16b
[INFO] running `Command { std: "docker" "start" "-a" "221caa5c1249bc43f96123d74287d9978e9a5ceb3e6d0ab99ca531c30472f16b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.185
[INFO] [stderr]    Compiling dunce v1.0.5
[INFO] [stderr]    Compiling serde_core v1.0.228
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[INFO] [stderr]    Compiling futures-util v0.3.32
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[INFO] [stderr]    Compiling hyper v1.9.0
[INFO] [stderr]    Compiling hyper-util v0.1.20
[INFO] [stderr]    Compiling rustls-webpki v0.103.13
[INFO] [stderr]    Compiling tokio-rustls v0.26.4
[INFO] [stderr]    Compiling rustls-platform-verifier v0.6.2
[INFO] [stderr]    Compiling hyper-rustls v0.27.9
[INFO] [stderr]    Compiling reqwest v0.13.2
[INFO] [stderr]    Compiling typespec_client_core v0.14.0
[INFO] [stderr]    Compiling azure_security_keyvault_certificates v0.13.0
[INFO] [stderr]    Compiling azure_security_keyvault_secrets v0.14.0
[INFO] [stderr]    Compiling azure_security_keyvault_keys v0.14.0
[INFO] [stderr]    Compiling azure_identity v0.35.0
[INFO] [stderr]    Compiling akv-cli v0.10.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/bin/akv/main.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(once_cell_try)]
[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 `akv-cli` (bin "akv") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "221caa5c1249bc43f96123d74287d9978e9a5ceb3e6d0ab99ca531c30472f16b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "221caa5c1249bc43f96123d74287d9978e9a5ceb3e6d0ab99ca531c30472f16b", kill_on_drop: false }`
[INFO] [stdout] 221caa5c1249bc43f96123d74287d9978e9a5ceb3e6d0ab99ca531c30472f16b
