[INFO] fetching crate tapehead 0.0.0...
[INFO] testing tapehead-0.0.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate tapehead 0.0.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate tapehead 0.0.0
[INFO] finished tweaking crates.io crate tapehead 0.0.0
[INFO] tweaked toml for crates.io crate tapehead 0.0.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tapehead 0.0.0 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 tapehead 0.0.0 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 4a7944cbaa15e30b6cbd8a9cf1e98033001c4b59672423839c7a0664078037c0
[INFO] running `Command { std: "docker" "start" "-a" "4a7944cbaa15e30b6cbd8a9cf1e98033001c4b59672423839c7a0664078037c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a7944cbaa15e30b6cbd8a9cf1e98033001c4b59672423839c7a0664078037c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a7944cbaa15e30b6cbd8a9cf1e98033001c4b59672423839c7a0664078037c0", kill_on_drop: false }`
[INFO] [stdout] 4a7944cbaa15e30b6cbd8a9cf1e98033001c4b59672423839c7a0664078037c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 2b30f1afc6e5a7a6f9891bde3eaaed359c07ef27798037b30e9bc58c54f71d0e
[INFO] running `Command { std: "docker" "start" "-a" "2b30f1afc6e5a7a6f9891bde3eaaed359c07ef27798037b30e9bc58c54f71d0e", kill_on_drop: false }`
[INFO] [stderr]    Compiling tapehead v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "2b30f1afc6e5a7a6f9891bde3eaaed359c07ef27798037b30e9bc58c54f71d0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b30f1afc6e5a7a6f9891bde3eaaed359c07ef27798037b30e9bc58c54f71d0e", kill_on_drop: false }`
[INFO] [stdout] 2b30f1afc6e5a7a6f9891bde3eaaed359c07ef27798037b30e9bc58c54f71d0e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 7c828da1f479edb9d04e3d5a659320a46f18540178e7648f931c0d51e79525ae
[INFO] running `Command { std: "docker" "start" "-a" "7c828da1f479edb9d04e3d5a659320a46f18540178e7648f931c0d51e79525ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling tapehead v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "7c828da1f479edb9d04e3d5a659320a46f18540178e7648f931c0d51e79525ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c828da1f479edb9d04e3d5a659320a46f18540178e7648f931c0d51e79525ae", kill_on_drop: false }`
[INFO] [stdout] 7c828da1f479edb9d04e3d5a659320a46f18540178e7648f931c0d51e79525ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 26c197b6c327790376d855a22943e3b2d6253de67de98ac172dda4a32aa3aa95
[INFO] running `Command { std: "docker" "start" "-a" "26c197b6c327790376d855a22943e3b2d6253de67de98ac172dda4a32aa3aa95", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/tapehead-bf12ca2496f718e5)
[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" "26c197b6c327790376d855a22943e3b2d6253de67de98ac172dda4a32aa3aa95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26c197b6c327790376d855a22943e3b2d6253de67de98ac172dda4a32aa3aa95", kill_on_drop: false }`
[INFO] [stdout] 26c197b6c327790376d855a22943e3b2d6253de67de98ac172dda4a32aa3aa95
