[INFO] fetching crate rust-book-2023 0.1.1...
[INFO] testing rust-book-2023-0.1.1 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rust-book-2023 0.1.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate rust-book-2023 0.1.1
[INFO] finished tweaking crates.io crate rust-book-2023 0.1.1
[INFO] tweaked toml for crates.io crate rust-book-2023 0.1.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust-book-2023 0.1.1 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 rust-book-2023 0.1.1 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-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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 742e5fb79f1967edeb4ec3d99635f657289b185740d7b46d1b54ad6041ed9d44
[INFO] running `Command { std: "docker" "start" "-a" "742e5fb79f1967edeb4ec3d99635f657289b185740d7b46d1b54ad6041ed9d44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "742e5fb79f1967edeb4ec3d99635f657289b185740d7b46d1b54ad6041ed9d44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "742e5fb79f1967edeb4ec3d99635f657289b185740d7b46d1b54ad6041ed9d44", kill_on_drop: false }`
[INFO] [stdout] 742e5fb79f1967edeb4ec3d99635f657289b185740d7b46d1b54ad6041ed9d44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] d86f41cc26e68d443b578f1cffb421a95315361cbdc3c8e9272c6d6d831acae6
[INFO] running `Command { std: "docker" "start" "-a" "d86f41cc26e68d443b578f1cffb421a95315361cbdc3c8e9272c6d6d831acae6", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-book-2023 v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "d86f41cc26e68d443b578f1cffb421a95315361cbdc3c8e9272c6d6d831acae6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d86f41cc26e68d443b578f1cffb421a95315361cbdc3c8e9272c6d6d831acae6", kill_on_drop: false }`
[INFO] [stdout] d86f41cc26e68d443b578f1cffb421a95315361cbdc3c8e9272c6d6d831acae6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] cdf5eb3dd9ad6b7f0449925454d01fde2ed8e0f41c018bb14eb2dddcc41a3b5e
[INFO] running `Command { std: "docker" "start" "-a" "cdf5eb3dd9ad6b7f0449925454d01fde2ed8e0f41c018bb14eb2dddcc41a3b5e", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-book-2023 v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.56s
[INFO] running `Command { std: "docker" "inspect" "cdf5eb3dd9ad6b7f0449925454d01fde2ed8e0f41c018bb14eb2dddcc41a3b5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdf5eb3dd9ad6b7f0449925454d01fde2ed8e0f41c018bb14eb2dddcc41a3b5e", kill_on_drop: false }`
[INFO] [stdout] cdf5eb3dd9ad6b7f0449925454d01fde2ed8e0f41c018bb14eb2dddcc41a3b5e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] e532cb9ca5e512e076b2dfc6c9d5918bf96c5444ae673f6f9cc96996c1253beb
[INFO] running `Command { std: "docker" "start" "-a" "e532cb9ca5e512e076b2dfc6c9d5918bf96c5444ae673f6f9cc96996c1253beb", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_book_2023-56d5c47d0dcc07d7)
[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 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e532cb9ca5e512e076b2dfc6c9d5918bf96c5444ae673f6f9cc96996c1253beb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e532cb9ca5e512e076b2dfc6c9d5918bf96c5444ae673f6f9cc96996c1253beb", kill_on_drop: false }`
[INFO] [stdout] e532cb9ca5e512e076b2dfc6c9d5918bf96c5444ae673f6f9cc96996c1253beb
