[INFO] fetching crate synthez 0.3.1...
[INFO] testing synthez-0.3.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate synthez 0.3.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate synthez 0.3.1
[INFO] finished tweaking crates.io crate synthez 0.3.1
[INFO] tweaked toml for crates.io crate synthez 0.3.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate synthez 0.3.1 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 8 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-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 586738f2fdbf5baaff64ad2c7b8a32264d9cf75ae37d5a13d4985e0d5d52dcea
[INFO] running `Command { std: "docker" "start" "-a" "586738f2fdbf5baaff64ad2c7b8a32264d9cf75ae37d5a13d4985e0d5d52dcea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "586738f2fdbf5baaff64ad2c7b8a32264d9cf75ae37d5a13d4985e0d5d52dcea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "586738f2fdbf5baaff64ad2c7b8a32264d9cf75ae37d5a13d4985e0d5d52dcea", kill_on_drop: false }`
[INFO] [stdout] 586738f2fdbf5baaff64ad2c7b8a32264d9cf75ae37d5a13d4985e0d5d52dcea
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4152be561b565d7351539404cd1385db33e897deb0ef80c4fc76ec3efcf73c84
[INFO] running `Command { std: "docker" "start" "-a" "4152be561b565d7351539404cd1385db33e897deb0ef80c4fc76ec3efcf73c84", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling sealed v0.5.0
[INFO] [stderr]    Compiling synthez-core v0.3.1
[INFO] [stderr]    Compiling synthez-codegen v0.3.1
[INFO] [stderr]    Compiling synthez v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lint `unused_tuple_struct_fields` has been renamed to `dead_code`
[INFO] [stdout]    --> src/lib.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 116 |     unused_tuple_struct_fields,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `dead_code`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: extern crate `syn` is unused in crate `synthez`
[INFO] [stdout]     |
[INFO] [stdout]     = help: remove the dependency or add `use syn as _;` to the crate root
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     unused_crate_dependencies,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.54s
[INFO] running `Command { std: "docker" "inspect" "4152be561b565d7351539404cd1385db33e897deb0ef80c4fc76ec3efcf73c84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4152be561b565d7351539404cd1385db33e897deb0ef80c4fc76ec3efcf73c84", kill_on_drop: false }`
[INFO] [stdout] 4152be561b565d7351539404cd1385db33e897deb0ef80c4fc76ec3efcf73c84
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bbcb9b5a8cd8ba1f724346a6d513c77ea4ccf869093a07a6125f44dcfbdd35c0
[INFO] running `Command { std: "docker" "start" "-a" "bbcb9b5a8cd8ba1f724346a6d513c77ea4ccf869093a07a6125f44dcfbdd35c0", kill_on_drop: false }`
[INFO] [stdout] warning: lint `unused_tuple_struct_fields` has been renamed to `dead_code`
[INFO] [stdout]    --> src/lib.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 116 |     unused_tuple_struct_fields,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `dead_code`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: extern crate `syn` is unused in crate `synthez`
[INFO] [stdout]     |
[INFO] [stdout]     = help: remove the dependency or add `use syn as _;` to the crate root
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     unused_crate_dependencies,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling synthez v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lint `unused_tuple_struct_fields` has been renamed to `dead_code`
[INFO] [stdout]    --> src/lib.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 116 |     unused_tuple_struct_fields,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `dead_code`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: extern crate `syn` is unused in crate `synthez`
[INFO] [stdout]     |
[INFO] [stdout]     = help: remove the dependency or add `use syn as _;` to the crate root
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     unused_crate_dependencies,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "bbcb9b5a8cd8ba1f724346a6d513c77ea4ccf869093a07a6125f44dcfbdd35c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbcb9b5a8cd8ba1f724346a6d513c77ea4ccf869093a07a6125f44dcfbdd35c0", kill_on_drop: false }`
[INFO] [stdout] bbcb9b5a8cd8ba1f724346a6d513c77ea4ccf869093a07a6125f44dcfbdd35c0
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 734584fd1941d4292eb4e6ff999e36118230ea83732f8b0e3aa18ada7f80e643
[INFO] running `Command { std: "docker" "start" "-a" "734584fd1941d4292eb4e6ff999e36118230ea83732f8b0e3aa18ada7f80e643", kill_on_drop: false }`
[INFO] [stderr] warning: lint `unused_tuple_struct_fields` has been renamed to `dead_code`
[INFO] [stderr]    --> src/lib.rs:116:5
[INFO] [stderr]     |
[INFO] [stderr] 116 |     unused_tuple_struct_fields,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `dead_code`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: extern crate `syn` is unused in crate `synthez`
[INFO] [stderr]     |
[INFO] [stderr]     = help: remove the dependency or add `use syn as _;` to the crate root
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]    --> src/lib.rs:109:5
[INFO] [stderr]     |
[INFO] [stderr] 109 |     unused_crate_dependencies,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `synthez` (lib) generated 2 warnings (run `cargo fix --lib -p synthez` to apply 1 suggestion)
[INFO] [stderr] warning: `synthez` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/synthez-2cf60a66c7ecb5c4)
[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 synthez
[INFO] [stderr] warning: lint `unused_tuple_struct_fields` has been renamed to `dead_code`
[INFO] [stderr]    --> src/lib.rs:116:5
[INFO] [stderr]     |
[INFO] [stderr] 116 |     unused_tuple_struct_fields,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `dead_code`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 35) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.62s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "734584fd1941d4292eb4e6ff999e36118230ea83732f8b0e3aa18ada7f80e643", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "734584fd1941d4292eb4e6ff999e36118230ea83732f8b0e3aa18ada7f80e643", kill_on_drop: false }`
[INFO] [stdout] 734584fd1941d4292eb4e6ff999e36118230ea83732f8b0e3aa18ada7f80e643