[INFO] fetching crate seekable-iterator 0.3.1...
[INFO] testing seekable-iterator-0.3.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate seekable-iterator 0.3.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate seekable-iterator 0.3.1
[INFO] finished tweaking crates.io crate seekable-iterator 0.3.1
[INFO] tweaked toml for crates.io crate seekable-iterator 0.3.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate seekable-iterator 0.3.1 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate seekable-iterator 0.3.1 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-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1152e53612d6069913226d752f32df7e810f40c2bdd085abbcfc07d56be6645c
[INFO] running `Command { std: "docker" "start" "-a" "1152e53612d6069913226d752f32df7e810f40c2bdd085abbcfc07d56be6645c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1152e53612d6069913226d752f32df7e810f40c2bdd085abbcfc07d56be6645c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1152e53612d6069913226d752f32df7e810f40c2bdd085abbcfc07d56be6645c", kill_on_drop: false }`
[INFO] [stdout] 1152e53612d6069913226d752f32df7e810f40c2bdd085abbcfc07d56be6645c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 611870a081fd2aba51eb7feb39e5f4bd08202f61a8ac84edeeb0ffed6ae7bd9d
[INFO] running `Command { std: "docker" "start" "-a" "611870a081fd2aba51eb7feb39e5f4bd08202f61a8ac84edeeb0ffed6ae7bd9d", kill_on_drop: false }`
[INFO] [stderr]    Compiling generic-container v0.2.1
[INFO] [stderr]    Compiling clone-behavior v0.0.1
[INFO] [stderr]    Compiling seekable-iterator v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "611870a081fd2aba51eb7feb39e5f4bd08202f61a8ac84edeeb0ffed6ae7bd9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "611870a081fd2aba51eb7feb39e5f4bd08202f61a8ac84edeeb0ffed6ae7bd9d", kill_on_drop: false }`
[INFO] [stdout] 611870a081fd2aba51eb7feb39e5f4bd08202f61a8ac84edeeb0ffed6ae7bd9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a667f18ae61077cc56c90f12a8e8c5a2239e31aed6820be81ce36d20a2a2ecd6
[INFO] running `Command { std: "docker" "start" "-a" "a667f18ae61077cc56c90f12a8e8c5a2239e31aed6820be81ce36d20a2a2ecd6", kill_on_drop: false }`
[INFO] [stderr]    Compiling seekable-iterator v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "a667f18ae61077cc56c90f12a8e8c5a2239e31aed6820be81ce36d20a2a2ecd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a667f18ae61077cc56c90f12a8e8c5a2239e31aed6820be81ce36d20a2a2ecd6", kill_on_drop: false }`
[INFO] [stdout] a667f18ae61077cc56c90f12a8e8c5a2239e31aed6820be81ce36d20a2a2ecd6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bdff8ec27aaa65460d99b20279a8ea522a79b48d96b2a3c9a066913c9e81ab20
[INFO] running `Command { std: "docker" "start" "-a" "bdff8ec27aaa65460d99b20279a8ea522a79b48d96b2a3c9a066913c9e81ab20", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/seekable_iterator-84a33579a2dc3010)
[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 seekable_iterator
[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" "bdff8ec27aaa65460d99b20279a8ea522a79b48d96b2a3c9a066913c9e81ab20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdff8ec27aaa65460d99b20279a8ea522a79b48d96b2a3c9a066913c9e81ab20", kill_on_drop: false }`
[INFO] [stdout] bdff8ec27aaa65460d99b20279a8ea522a79b48d96b2a3c9a066913c9e81ab20