[INFO] fetching crate singleton-stepanov 1.1.0...
[INFO] testing singleton-stepanov-1.1.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate singleton-stepanov 1.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate singleton-stepanov 1.1.0
[INFO] finished tweaking crates.io crate singleton-stepanov 1.1.0
[INFO] tweaked toml for crates.io crate singleton-stepanov 1.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate singleton-stepanov 1.1.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c2305879d252e236e22b3743b65935f3328c2993b922056239e65f278cff012b
[INFO] running `Command { std: "docker" "start" "-a" "c2305879d252e236e22b3743b65935f3328c2993b922056239e65f278cff012b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2305879d252e236e22b3743b65935f3328c2993b922056239e65f278cff012b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2305879d252e236e22b3743b65935f3328c2993b922056239e65f278cff012b", kill_on_drop: false }`
[INFO] [stdout] c2305879d252e236e22b3743b65935f3328c2993b922056239e65f278cff012b
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d13d7891182202d056815c1339a998a2fdec5afb4e390619bd057c4bfd7e5114
[INFO] running `Command { std: "docker" "start" "-a" "d13d7891182202d056815c1339a998a2fdec5afb4e390619bd057c4bfd7e5114", kill_on_drop: false }`
[INFO] [stderr]    Compiling singleton-stepanov v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "d13d7891182202d056815c1339a998a2fdec5afb4e390619bd057c4bfd7e5114", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d13d7891182202d056815c1339a998a2fdec5afb4e390619bd057c4bfd7e5114", kill_on_drop: false }`
[INFO] [stdout] d13d7891182202d056815c1339a998a2fdec5afb4e390619bd057c4bfd7e5114
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 48cf37f6a00cbeae579fafb6b4a3d3f8f2d9d2bf1be56642c02fc531d0f5cc7d
[INFO] running `Command { std: "docker" "start" "-a" "48cf37f6a00cbeae579fafb6b4a3d3f8f2d9d2bf1be56642c02fc531d0f5cc7d", kill_on_drop: false }`
[INFO] [stderr]    Compiling singleton-stepanov v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "48cf37f6a00cbeae579fafb6b4a3d3f8f2d9d2bf1be56642c02fc531d0f5cc7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48cf37f6a00cbeae579fafb6b4a3d3f8f2d9d2bf1be56642c02fc531d0f5cc7d", kill_on_drop: false }`
[INFO] [stdout] 48cf37f6a00cbeae579fafb6b4a3d3f8f2d9d2bf1be56642c02fc531d0f5cc7d
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f62ccf8c2f51f37b365a9e308564951c590fc311415656750fe63f091e2423fd
[INFO] running `Command { std: "docker" "start" "-a" "f62ccf8c2f51f37b365a9e308564951c590fc311415656750fe63f091e2423fd", 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/singleton_stepanov-20daa1201a1d7ee6)
[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 singleton_stepanov
[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" "f62ccf8c2f51f37b365a9e308564951c590fc311415656750fe63f091e2423fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f62ccf8c2f51f37b365a9e308564951c590fc311415656750fe63f091e2423fd", kill_on_drop: false }`
[INFO] [stdout] f62ccf8c2f51f37b365a9e308564951c590fc311415656750fe63f091e2423fd
