[INFO] fetching crate mut_family 0.1.14...
[INFO] testing mut_family-0.1.14 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate mut_family 0.1.14 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate mut_family 0.1.14
[INFO] finished tweaking crates.io crate mut_family 0.1.14
[INFO] tweaked toml for crates.io crate mut_family 0.1.14 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mut_family 0.1.14 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 7 packages to latest compatible versions
[INFO] [stderr]       Adding sealed v0.4.0 (available: v0.6.0)
[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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] e3df7d4fd2b843e86e678366e0f02e95e486a7e658023405748cf1a7ac4ff5ef
[INFO] running `Command { std: "docker" "start" "-a" "e3df7d4fd2b843e86e678366e0f02e95e486a7e658023405748cf1a7ac4ff5ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3df7d4fd2b843e86e678366e0f02e95e486a7e658023405748cf1a7ac4ff5ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3df7d4fd2b843e86e678366e0f02e95e486a7e658023405748cf1a7ac4ff5ef", kill_on_drop: false }`
[INFO] [stdout] e3df7d4fd2b843e86e678366e0f02e95e486a7e658023405748cf1a7ac4ff5ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 9042f0b0defbf1554218cfc9e9331b3ce09d7bac9b6ba28ae7a0261909c4b4e1
[INFO] running `Command { std: "docker" "start" "-a" "9042f0b0defbf1554218cfc9e9331b3ce09d7bac9b6ba28ae7a0261909c4b4e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling unicode-segmentation v1.12.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling sealed v0.4.0
[INFO] [stderr]    Compiling mut_family v0.1.14 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.14s
[INFO] running `Command { std: "docker" "inspect" "9042f0b0defbf1554218cfc9e9331b3ce09d7bac9b6ba28ae7a0261909c4b4e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9042f0b0defbf1554218cfc9e9331b3ce09d7bac9b6ba28ae7a0261909c4b4e1", kill_on_drop: false }`
[INFO] [stdout] 9042f0b0defbf1554218cfc9e9331b3ce09d7bac9b6ba28ae7a0261909c4b4e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] c208e1843978b8dedf9dcd3c4455cb91acbd0828c44a17959b5459df34af011a
[INFO] running `Command { std: "docker" "start" "-a" "c208e1843978b8dedf9dcd3c4455cb91acbd0828c44a17959b5459df34af011a", kill_on_drop: false }`
[INFO] [stderr]    Compiling mut_family v0.1.14 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "c208e1843978b8dedf9dcd3c4455cb91acbd0828c44a17959b5459df34af011a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c208e1843978b8dedf9dcd3c4455cb91acbd0828c44a17959b5459df34af011a", kill_on_drop: false }`
[INFO] [stdout] c208e1843978b8dedf9dcd3c4455cb91acbd0828c44a17959b5459df34af011a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 5bc84092f0911eda3da5f280de5b0bd09f0f0493f7b611458899122588cc32f3
[INFO] running `Command { std: "docker" "start" "-a" "5bc84092f0911eda3da5f280de5b0bd09f0f0493f7b611458899122588cc32f3", 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/mut_family-c987052e2ed86aeb)
[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 mut_family
[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" "5bc84092f0911eda3da5f280de5b0bd09f0f0493f7b611458899122588cc32f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bc84092f0911eda3da5f280de5b0bd09f0f0493f7b611458899122588cc32f3", kill_on_drop: false }`
[INFO] [stdout] 5bc84092f0911eda3da5f280de5b0bd09f0f0493f7b611458899122588cc32f3