[INFO] fetching crate mangle-engine 0.1.1...
[INFO] testing mangle-engine-0.1.1 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate mangle-engine 0.1.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate mangle-engine 0.1.1
[INFO] finished tweaking crates.io crate mangle-engine 0.1.1
[INFO] tweaked toml for crates.io crate mangle-engine 0.1.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mangle-engine 0.1.1 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] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 19 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-2025-10-28" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bdc6e53b786a8094a604ce6efd096e857b98d815c986c0108cae3b129f512adc
[INFO] running `Command { std: "docker" "start" "-a" "bdc6e53b786a8094a604ce6efd096e857b98d815c986c0108cae3b129f512adc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bdc6e53b786a8094a604ce6efd096e857b98d815c986c0108cae3b129f512adc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdc6e53b786a8094a604ce6efd096e857b98d815c986c0108cae3b129f512adc", kill_on_drop: false }`
[INFO] [stdout] bdc6e53b786a8094a604ce6efd096e857b98d815c986c0108cae3b129f512adc
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef76326f5f37f5015800bfc37a5abb1b528081e411fa3617777c17353fa8f790
[INFO] running `Command { std: "docker" "start" "-a" "ef76326f5f37f5015800bfc37a5abb1b528081e411fa3617777c17353fa8f790", kill_on_drop: false }`
[INFO] [stderr]    Compiling bumpalo v3.19.0
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]    Compiling googletest_macro v0.11.0
[INFO] [stderr]    Compiling googletest v0.11.0
[INFO] [stderr]    Compiling mangle-ast v0.1.1
[INFO] [stderr]    Compiling mangle-factstore v0.1.1
[INFO] [stderr]    Compiling mangle-analysis v0.1.1
[INFO] [stderr]    Compiling mangle-engine v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Naive` is never constructed
[INFO] [stdout]   --> src/naive.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Naive {}
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.16s
[INFO] running `Command { std: "docker" "inspect" "ef76326f5f37f5015800bfc37a5abb1b528081e411fa3617777c17353fa8f790", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef76326f5f37f5015800bfc37a5abb1b528081e411fa3617777c17353fa8f790", kill_on_drop: false }`
[INFO] [stdout] ef76326f5f37f5015800bfc37a5abb1b528081e411fa3617777c17353fa8f790
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea63cb5362ee15c935276b67901a1869f488444ec6c06905ff2b36cc6b70e181
[INFO] running `Command { std: "docker" "start" "-a" "ea63cb5362ee15c935276b67901a1869f488444ec6c06905ff2b36cc6b70e181", kill_on_drop: false }`
[INFO] [stderr]    Compiling mangle-engine v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Naive` is never constructed
[INFO] [stdout]   --> src/naive.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Naive {}
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "ea63cb5362ee15c935276b67901a1869f488444ec6c06905ff2b36cc6b70e181", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea63cb5362ee15c935276b67901a1869f488444ec6c06905ff2b36cc6b70e181", kill_on_drop: false }`
[INFO] [stdout] ea63cb5362ee15c935276b67901a1869f488444ec6c06905ff2b36cc6b70e181
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b4eec189d871211cd108e5b44f200b3fc037c7897a509f6e0e1d4f4cbd0cbd08
[INFO] running `Command { std: "docker" "start" "-a" "b4eec189d871211cd108e5b44f200b3fc037c7897a509f6e0e1d4f4cbd0cbd08", kill_on_drop: false }`
[INFO] [stderr] warning: struct `Naive` is never constructed
[INFO] [stderr]   --> src/naive.rs:21:12
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub struct Naive {}
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `mangle-engine` (lib) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mangle_engine-edf1cd83acb1703b)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test naive::test::test_naive ... 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 mangle_engine
[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" "b4eec189d871211cd108e5b44f200b3fc037c7897a509f6e0e1d4f4cbd0cbd08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4eec189d871211cd108e5b44f200b3fc037c7897a509f6e0e1d4f4cbd0cbd08", kill_on_drop: false }`
[INFO] [stdout] b4eec189d871211cd108e5b44f200b3fc037c7897a509f6e0e1d4f4cbd0cbd08