[INFO] fetching crate subio 0.2.0...
[INFO] testing subio-0.2.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate subio 0.2.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate subio 0.2.0
[INFO] finished tweaking crates.io crate subio 0.2.0
[INFO] tweaked toml for crates.io crate subio 0.2.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate subio 0.2.0 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 subio 0.2.0 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-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] b551999712b0166276cead1bec479748c57e53bed789b3253ee2d9d6e33c2436
[INFO] running `Command { std: "docker" "start" "-a" "b551999712b0166276cead1bec479748c57e53bed789b3253ee2d9d6e33c2436", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b551999712b0166276cead1bec479748c57e53bed789b3253ee2d9d6e33c2436", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b551999712b0166276cead1bec479748c57e53bed789b3253ee2d9d6e33c2436", kill_on_drop: false }`
[INFO] [stdout] b551999712b0166276cead1bec479748c57e53bed789b3253ee2d9d6e33c2436
[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] 2faa8834f2114ca7f54d0df398b689ad1d9d08331e8e73114d7c88126731dd08
[INFO] running `Command { std: "docker" "start" "-a" "2faa8834f2114ca7f54d0df398b689ad1d9d08331e8e73114d7c88126731dd08", kill_on_drop: false }`
[INFO] [stderr]    Compiling subio v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "2faa8834f2114ca7f54d0df398b689ad1d9d08331e8e73114d7c88126731dd08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2faa8834f2114ca7f54d0df398b689ad1d9d08331e8e73114d7c88126731dd08", kill_on_drop: false }`
[INFO] [stdout] 2faa8834f2114ca7f54d0df398b689ad1d9d08331e8e73114d7c88126731dd08
[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] 7e23485172b4714fba0c3037318a05bfb7d226a8fc3330eefea32520b78c43c3
[INFO] running `Command { std: "docker" "start" "-a" "7e23485172b4714fba0c3037318a05bfb7d226a8fc3330eefea32520b78c43c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling subio v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "7e23485172b4714fba0c3037318a05bfb7d226a8fc3330eefea32520b78c43c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e23485172b4714fba0c3037318a05bfb7d226a8fc3330eefea32520b78c43c3", kill_on_drop: false }`
[INFO] [stdout] 7e23485172b4714fba0c3037318a05bfb7d226a8fc3330eefea32520b78c43c3
[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] 543d5e0d25defc6637e3d563b1002d2b6fcb375f7553414b27932f5e0e07172f
[INFO] running `Command { std: "docker" "start" "-a" "543d5e0d25defc6637e3d563b1002d2b6fcb375f7553414b27932f5e0e07172f", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/subio-3a7c6cdcf8f721fa)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test io::read::tests::test_subreader ... ok
[INFO] [stdout] test io::write::tests::test_subwriter ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests subio
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[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" "543d5e0d25defc6637e3d563b1002d2b6fcb375f7553414b27932f5e0e07172f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "543d5e0d25defc6637e3d563b1002d2b6fcb375f7553414b27932f5e0e07172f", kill_on_drop: false }`
[INFO] [stdout] 543d5e0d25defc6637e3d563b1002d2b6fcb375f7553414b27932f5e0e07172f
