[INFO] fetching crate smartcow 0.2.1...
[INFO] testing smartcow-0.2.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate smartcow 0.2.1 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate smartcow 0.2.1
[INFO] finished tweaking crates.io crate smartcow 0.2.1
[INFO] tweaked toml for crates.io crate smartcow 0.2.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate smartcow 0.2.1 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 398672a8adaea6f5e4b85a4e1347056518d9a300e0570ffa9817d07f62cb21bb
[INFO] running `Command { std: "docker" "start" "-a" "398672a8adaea6f5e4b85a4e1347056518d9a300e0570ffa9817d07f62cb21bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "398672a8adaea6f5e4b85a4e1347056518d9a300e0570ffa9817d07f62cb21bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "398672a8adaea6f5e4b85a4e1347056518d9a300e0570ffa9817d07f62cb21bb", kill_on_drop: false }`
[INFO] [stdout] 398672a8adaea6f5e4b85a4e1347056518d9a300e0570ffa9817d07f62cb21bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 4f7b4a90be3c62f34ed1a228c97144829c50bff2da7ef6973cd05ee36e69a3b1
[INFO] running `Command { std: "docker" "start" "-a" "4f7b4a90be3c62f34ed1a228c97144829c50bff2da7ef6973cd05ee36e69a3b1", kill_on_drop: false }`
[INFO] [stderr]    Compiling smartstring v1.0.1
[INFO] [stderr]    Compiling smartcow v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `Command { std: "docker" "inspect" "4f7b4a90be3c62f34ed1a228c97144829c50bff2da7ef6973cd05ee36e69a3b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f7b4a90be3c62f34ed1a228c97144829c50bff2da7ef6973cd05ee36e69a3b1", kill_on_drop: false }`
[INFO] [stdout] 4f7b4a90be3c62f34ed1a228c97144829c50bff2da7ef6973cd05ee36e69a3b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 7c7bb2deed91d9ceaafc1af475c8f35619008c6b6806f5e66902dc3d8a0c30f0
[INFO] running `Command { std: "docker" "start" "-a" "7c7bb2deed91d9ceaafc1af475c8f35619008c6b6806f5e66902dc3d8a0c30f0", kill_on_drop: false }`
[INFO] [stderr]    Compiling smartcow v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "7c7bb2deed91d9ceaafc1af475c8f35619008c6b6806f5e66902dc3d8a0c30f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c7bb2deed91d9ceaafc1af475c8f35619008c6b6806f5e66902dc3d8a0c30f0", kill_on_drop: false }`
[INFO] [stdout] 7c7bb2deed91d9ceaafc1af475c8f35619008c6b6806f5e66902dc3d8a0c30f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] d954834593f49d3c1c66bf8af726f715fc792411ba532a0d815df76f6e677cd9
[INFO] running `Command { std: "docker" "start" "-a" "d954834593f49d3c1c66bf8af726f715fc792411ba532a0d815df76f6e677cd9", 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/smartcow-f57a89f8f6e2cdd5)
[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 smartcow
[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" "d954834593f49d3c1c66bf8af726f715fc792411ba532a0d815df76f6e677cd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d954834593f49d3c1c66bf8af726f715fc792411ba532a0d815df76f6e677cd9", kill_on_drop: false }`
[INFO] [stdout] d954834593f49d3c1c66bf8af726f715fc792411ba532a0d815df76f6e677cd9