[INFO] fetching crate singularize 0.1.0...
[INFO] testing singularize-0.1.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate singularize 0.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate singularize 0.1.0
[INFO] finished tweaking crates.io crate singularize 0.1.0
[INFO] tweaked toml for crates.io crate singularize 0.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate singularize 0.1.0 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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-2025-10-28" "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-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 575d2768d09f6348f3eed825f48121114c007ee6117993a2851ca01b59e66691
[INFO] running `Command { std: "docker" "start" "-a" "575d2768d09f6348f3eed825f48121114c007ee6117993a2851ca01b59e66691", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "575d2768d09f6348f3eed825f48121114c007ee6117993a2851ca01b59e66691", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "575d2768d09f6348f3eed825f48121114c007ee6117993a2851ca01b59e66691", kill_on_drop: false }`
[INFO] [stdout] 575d2768d09f6348f3eed825f48121114c007ee6117993a2851ca01b59e66691
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b3f0097cdc7e67abc9f0eebf08d7b5d0395ea12ef2ad75a67a7cc712c45fc74
[INFO] running `Command { std: "docker" "start" "-a" "3b3f0097cdc7e67abc9f0eebf08d7b5d0395ea12ef2ad75a67a7cc712c45fc74", kill_on_drop: false }`
[INFO] [stderr]    Compiling singularize v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "3b3f0097cdc7e67abc9f0eebf08d7b5d0395ea12ef2ad75a67a7cc712c45fc74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b3f0097cdc7e67abc9f0eebf08d7b5d0395ea12ef2ad75a67a7cc712c45fc74", kill_on_drop: false }`
[INFO] [stdout] 3b3f0097cdc7e67abc9f0eebf08d7b5d0395ea12ef2ad75a67a7cc712c45fc74
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b1019c5a5b290e253c3b3381ecb548a45c4f6a5b2baf28e71cba0367b9fdbe8e
[INFO] running `Command { std: "docker" "start" "-a" "b1019c5a5b290e253c3b3381ecb548a45c4f6a5b2baf28e71cba0367b9fdbe8e", kill_on_drop: false }`
[INFO] [stderr]    Compiling singularize v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "b1019c5a5b290e253c3b3381ecb548a45c4f6a5b2baf28e71cba0367b9fdbe8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1019c5a5b290e253c3b3381ecb548a45c4f6a5b2baf28e71cba0367b9fdbe8e", kill_on_drop: false }`
[INFO] [stdout] b1019c5a5b290e253c3b3381ecb548a45c4f6a5b2baf28e71cba0367b9fdbe8e
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 805006a6b56a8802e904aec5a3b257c359f84c6d7caf650fafc4cb327921c40b
[INFO] running `Command { std: "docker" "start" "-a" "805006a6b56a8802e904aec5a3b257c359f84c6d7caf650fafc4cb327921c40b", 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/singularize-5b56490d1bb9af6e)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test known ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests singularize
[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" "805006a6b56a8802e904aec5a3b257c359f84c6d7caf650fafc4cb327921c40b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "805006a6b56a8802e904aec5a3b257c359f84c6d7caf650fafc4cb327921c40b", kill_on_drop: false }`
[INFO] [stdout] 805006a6b56a8802e904aec5a3b257c359f84c6d7caf650fafc4cb327921c40b