[INFO] fetching crate redix 1.4.1...
[INFO] testing redix-1.4.1 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate redix 1.4.1 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate redix 1.4.1
[INFO] finished tweaking crates.io crate redix 1.4.1
[INFO] tweaked toml for crates.io crate redix 1.4.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate redix 1.4.1 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 redix 1.4.1 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 9187a28277e502c717877bf95775cc484c30c1af1b64a4dc895ece039b96e492
[INFO] running `Command { std: "docker" "start" "-a" "9187a28277e502c717877bf95775cc484c30c1af1b64a4dc895ece039b96e492", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9187a28277e502c717877bf95775cc484c30c1af1b64a4dc895ece039b96e492", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9187a28277e502c717877bf95775cc484c30c1af1b64a4dc895ece039b96e492", kill_on_drop: false }`
[INFO] [stdout] 9187a28277e502c717877bf95775cc484c30c1af1b64a4dc895ece039b96e492
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 84e18acba766b11750aa61750805cf4cff0601b9d9f8238306b45c502f3ab809
[INFO] running `Command { std: "docker" "start" "-a" "84e18acba766b11750aa61750805cf4cff0601b9d9f8238306b45c502f3ab809", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.184
[INFO] [stderr]    Compiling nix v0.31.2
[INFO] [stderr]    Compiling cc v1.2.58
[INFO] [stderr]    Compiling redix v1.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.19s
[INFO] running `Command { std: "docker" "inspect" "84e18acba766b11750aa61750805cf4cff0601b9d9f8238306b45c502f3ab809", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84e18acba766b11750aa61750805cf4cff0601b9d9f8238306b45c502f3ab809", kill_on_drop: false }`
[INFO] [stdout] 84e18acba766b11750aa61750805cf4cff0601b9d9f8238306b45c502f3ab809
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93a39842bfd2b3800916d3cb4feb36c3fd6d2e2cfadfa139a346810d7372b8b0
[INFO] running `Command { std: "docker" "start" "-a" "93a39842bfd2b3800916d3cb4feb36c3fd6d2e2cfadfa139a346810d7372b8b0", kill_on_drop: false }`
[INFO] [stderr]    Compiling redix v1.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(test, feature(test))]
[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 `redix` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "93a39842bfd2b3800916d3cb4feb36c3fd6d2e2cfadfa139a346810d7372b8b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93a39842bfd2b3800916d3cb4feb36c3fd6d2e2cfadfa139a346810d7372b8b0", kill_on_drop: false }`
[INFO] [stdout] 93a39842bfd2b3800916d3cb4feb36c3fd6d2e2cfadfa139a346810d7372b8b0
