[INFO] fetching crate cppvtbl 0.2.1...
[INFO] testing cppvtbl-0.2.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate cppvtbl 0.2.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate cppvtbl 0.2.1
[INFO] finished tweaking crates.io crate cppvtbl 0.2.1
[INFO] tweaked toml for crates.io crate cppvtbl 0.2.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cppvtbl 0.2.1 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 5 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] b5f3b636046781ff4bd0fa6dac920c65f67b5addd8cc868119e31a7891b37fa2
[INFO] running `Command { std: "docker" "start" "-a" "b5f3b636046781ff4bd0fa6dac920c65f67b5addd8cc868119e31a7891b37fa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b5f3b636046781ff4bd0fa6dac920c65f67b5addd8cc868119e31a7891b37fa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5f3b636046781ff4bd0fa6dac920c65f67b5addd8cc868119e31a7891b37fa2", kill_on_drop: false }`
[INFO] [stdout] b5f3b636046781ff4bd0fa6dac920c65f67b5addd8cc868119e31a7891b37fa2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 2454a35cf7e8f0fe1d91e73124dd5a73c9243a1b21bf2450b00a1d764a724b9f
[INFO] running `Command { std: "docker" "start" "-a" "2454a35cf7e8f0fe1d91e73124dd5a73c9243a1b21bf2450b00a1d764a724b9f", kill_on_drop: false }`
[INFO] [stderr]    Compiling cppvtbl-macros v0.2.1
[INFO] [stderr]    Compiling cppvtbl v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "2454a35cf7e8f0fe1d91e73124dd5a73c9243a1b21bf2450b00a1d764a724b9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2454a35cf7e8f0fe1d91e73124dd5a73c9243a1b21bf2450b00a1d764a724b9f", kill_on_drop: false }`
[INFO] [stdout] 2454a35cf7e8f0fe1d91e73124dd5a73c9243a1b21bf2450b00a1d764a724b9f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 8cd77ada0cbad630a912e69c3cd0cecfd9afc9cb4116f287a5f4b57e244ea10d
[INFO] running `Command { std: "docker" "start" "-a" "8cd77ada0cbad630a912e69c3cd0cecfd9afc9cb4116f287a5f4b57e244ea10d", kill_on_drop: false }`
[INFO] [stderr]    Compiling cppvtbl v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `Test` is never used
[INFO] [stdout]  --> tests/generics.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | trait Test {
[INFO] [stdout]   |       ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `WrapperRef` is never constructed
[INFO] [stdout]  --> tests/generics.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct WrapperRef<'p>(&'p u32);
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TestVtableForWrapperRef` is never used
[INFO] [stdout]  --> tests/generics.rs:8:16
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[impl_vtables(Test)]
[INFO] [stdout]   |                ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this warning originates in the macro `unsafe_impl_TestVtable` which comes from the expansion of the attribute macro `impl_vtables` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Sub` is never constructed
[INFO] [stdout]   --> tests/basic.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct Sub(u8);
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `OperatorVtableForSub` is never used
[INFO] [stdout]   --> tests/basic.rs:17:16
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[impl_vtables(Operator)]
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `unsafe_impl_OperatorVtable` which comes from the expansion of the attribute macro `impl_vtables` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "8cd77ada0cbad630a912e69c3cd0cecfd9afc9cb4116f287a5f4b57e244ea10d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cd77ada0cbad630a912e69c3cd0cecfd9afc9cb4116f287a5f4b57e244ea10d", kill_on_drop: false }`
[INFO] [stdout] 8cd77ada0cbad630a912e69c3cd0cecfd9afc9cb4116f287a5f4b57e244ea10d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] b14518f14f0d50cb29d9300a94a2593928d75641e3d0367b1284dd7df689a531
[INFO] running `Command { std: "docker" "start" "-a" "b14518f14f0d50cb29d9300a94a2593928d75641e3d0367b1284dd7df689a531", kill_on_drop: false }`
[INFO] [stderr] warning: struct `Sub` is never constructed
[INFO] [stderr]   --> tests/basic.rs:18:8
[INFO] [stderr]    |
[INFO] [stderr] 18 | struct Sub(u8);
[INFO] [stderr]    |        ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `OperatorVtableForSub` is never used
[INFO] [stderr]   --> tests/basic.rs:17:16
[INFO] [stderr]    |
[INFO] [stderr] 17 | #[impl_vtables(Operator)]
[INFO] [stderr]    |                ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `unsafe_impl_OperatorVtable` which comes from the expansion of the attribute macro `impl_vtables` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `cppvtbl` (test "basic") generated 2 warnings
[INFO] [stderr] warning: trait `Test` is never used
[INFO] [stderr]  --> tests/generics.rs:4:7
[INFO] [stderr]   |
[INFO] [stderr] 4 | trait Test {
[INFO] [stderr]   |       ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `WrapperRef` is never constructed
[INFO] [stderr]  --> tests/generics.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | struct WrapperRef<'p>(&'p u32);
[INFO] [stderr]   |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `TestVtableForWrapperRef` is never used
[INFO] [stderr]  --> tests/generics.rs:8:16
[INFO] [stderr]   |
[INFO] [stderr] 8 | #[impl_vtables(Test)]
[INFO] [stderr]   |                ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: this warning originates in the macro `unsafe_impl_TestVtable` which comes from the expansion of the attribute macro `impl_vtables` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `cppvtbl` (test "generics") generated 3 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/cppvtbl-f9b9b0e1620757c4)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/basic.rs (/opt/rustwide/target/debug/deps/basic-8561a51c7f64580a)
[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] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running tests/generics.rs (/opt/rustwide/target/debug/deps/generics-72371902410da68a)
[INFO] [stdout] test test ... ok
[INFO] [stderr]    Doc-tests cppvtbl
[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] [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] [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" "b14518f14f0d50cb29d9300a94a2593928d75641e3d0367b1284dd7df689a531", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b14518f14f0d50cb29d9300a94a2593928d75641e3d0367b1284dd7df689a531", kill_on_drop: false }`
[INFO] [stdout] b14518f14f0d50cb29d9300a94a2593928d75641e3d0367b1284dd7df689a531