[INFO] fetching crate rextio 0.0.1...
[INFO] testing rextio-0.0.1 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rextio 0.0.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate rextio 0.0.1
[INFO] finished tweaking crates.io crate rextio 0.0.1
[INFO] tweaked toml for crates.io crate rextio 0.0.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rextio 0.0.1 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 rextio 0.0.1 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 09eaedea7ba9cb07ecc94471d4f3b30c6dae26b178a2fad69fb9901271f9684a
[INFO] running `Command { std: "docker" "start" "-a" "09eaedea7ba9cb07ecc94471d4f3b30c6dae26b178a2fad69fb9901271f9684a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09eaedea7ba9cb07ecc94471d4f3b30c6dae26b178a2fad69fb9901271f9684a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09eaedea7ba9cb07ecc94471d4f3b30c6dae26b178a2fad69fb9901271f9684a", kill_on_drop: false }`
[INFO] [stdout] 09eaedea7ba9cb07ecc94471d4f3b30c6dae26b178a2fad69fb9901271f9684a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] e28798c299369b4650afbce171b0cf41918d675adda1d401000b5601b41f28be
[INFO] running `Command { std: "docker" "start" "-a" "e28798c299369b4650afbce171b0cf41918d675adda1d401000b5601b41f28be", kill_on_drop: false }`
[INFO] [stderr]    Compiling rextio v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "e28798c299369b4650afbce171b0cf41918d675adda1d401000b5601b41f28be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e28798c299369b4650afbce171b0cf41918d675adda1d401000b5601b41f28be", kill_on_drop: false }`
[INFO] [stdout] e28798c299369b4650afbce171b0cf41918d675adda1d401000b5601b41f28be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 0e8a160aa990d96e196632e13f7b79fef4b32bb1de09fef65ac7260fa05c64d4
[INFO] running `Command { std: "docker" "start" "-a" "0e8a160aa990d96e196632e13f7b79fef4b32bb1de09fef65ac7260fa05c64d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling rextio v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "0e8a160aa990d96e196632e13f7b79fef4b32bb1de09fef65ac7260fa05c64d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e8a160aa990d96e196632e13f7b79fef4b32bb1de09fef65ac7260fa05c64d4", kill_on_drop: false }`
[INFO] [stdout] 0e8a160aa990d96e196632e13f7b79fef4b32bb1de09fef65ac7260fa05c64d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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", kill_on_drop: false }`
[INFO] [stdout] bfcb5997a8f38d30f359e150091bc04e6cb91cece354fccb5579547c97c938aa
[INFO] running `Command { std: "docker" "start" "-a" "bfcb5997a8f38d30f359e150091bc04e6cb91cece354fccb5579547c97c938aa", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rextio-cf1f0d09c3232eb4)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bfcb5997a8f38d30f359e150091bc04e6cb91cece354fccb5579547c97c938aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfcb5997a8f38d30f359e150091bc04e6cb91cece354fccb5579547c97c938aa", kill_on_drop: false }`
[INFO] [stdout] bfcb5997a8f38d30f359e150091bc04e6cb91cece354fccb5579547c97c938aa
