[INFO] fetching crate riff-io 0.2.0...
[INFO] testing riff-io-0.2.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate riff-io 0.2.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate riff-io 0.2.0
[INFO] finished tweaking crates.io crate riff-io 0.2.0
[INFO] tweaked toml for crates.io crate riff-io 0.2.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate riff-io 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 riff-io 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] 06c0dc8ae56e553171c8dbe4d44b8c6430b285cd85d09362d77bdb3b243eb71b
[INFO] running `Command { std: "docker" "start" "-a" "06c0dc8ae56e553171c8dbe4d44b8c6430b285cd85d09362d77bdb3b243eb71b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "06c0dc8ae56e553171c8dbe4d44b8c6430b285cd85d09362d77bdb3b243eb71b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06c0dc8ae56e553171c8dbe4d44b8c6430b285cd85d09362d77bdb3b243eb71b", kill_on_drop: false }`
[INFO] [stdout] 06c0dc8ae56e553171c8dbe4d44b8c6430b285cd85d09362d77bdb3b243eb71b
[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] 4c603bffef4ec891fd992289b1f647d8154f506d0d62e8ee780b7bee16b7772d
[INFO] running `Command { std: "docker" "start" "-a" "4c603bffef4ec891fd992289b1f647d8154f506d0d62e8ee780b7bee16b7772d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling memmap2 v0.6.2
[INFO] [stderr]    Compiling riff-io v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.79s
[INFO] running `Command { std: "docker" "inspect" "4c603bffef4ec891fd992289b1f647d8154f506d0d62e8ee780b7bee16b7772d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c603bffef4ec891fd992289b1f647d8154f506d0d62e8ee780b7bee16b7772d", kill_on_drop: false }`
[INFO] [stdout] 4c603bffef4ec891fd992289b1f647d8154f506d0d62e8ee780b7bee16b7772d
[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] b4c020d42edf837d4c7662aaa1ec5334dd8757bb17df5c2346913e05aac96b04
[INFO] running `Command { std: "docker" "start" "-a" "b4c020d42edf837d4c7662aaa1ec5334dd8757bb17df5c2346913e05aac96b04", kill_on_drop: false }`
[INFO] [stderr]    Compiling riff-io v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "b4c020d42edf837d4c7662aaa1ec5334dd8757bb17df5c2346913e05aac96b04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4c020d42edf837d4c7662aaa1ec5334dd8757bb17df5c2346913e05aac96b04", kill_on_drop: false }`
[INFO] [stdout] b4c020d42edf837d4c7662aaa1ec5334dd8757bb17df5c2346913e05aac96b04
[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] 82653fc9e3a18b76dd505bd476b9b1e0dd676e128c78cb59ea507245ac26fc7a
[INFO] running `Command { std: "docker" "start" "-a" "82653fc9e3a18b76dd505bd476b9b1e0dd676e128c78cb59ea507245ac26fc7a", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/riff_io-9eb0b4208907a108)
[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] [stderr]    Doc-tests riff_io
[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" "82653fc9e3a18b76dd505bd476b9b1e0dd676e128c78cb59ea507245ac26fc7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82653fc9e3a18b76dd505bd476b9b1e0dd676e128c78cb59ea507245ac26fc7a", kill_on_drop: false }`
[INFO] [stdout] 82653fc9e3a18b76dd505bd476b9b1e0dd676e128c78cb59ea507245ac26fc7a
