[INFO] fetching crate zygote 0.1.2...
[INFO] testing zygote-0.1.2 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate zygote 0.1.2 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate zygote 0.1.2
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate zygote 0.1.2
[INFO] tweaked toml for crates.io crate zygote 0.1.2 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate zygote 0.1.2 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 21 packages to latest compatible versions
[INFO] [stderr]       Adding nix v0.29.0 (available: v0.30.1)
[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-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c5fe31cb97ec4a2afd738293739ca5a960a58b0ddbb56dbd9d647e765a4553f6
[INFO] running `Command { std: "docker" "start" "-a" "c5fe31cb97ec4a2afd738293739ca5a960a58b0ddbb56dbd9d647e765a4553f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c5fe31cb97ec4a2afd738293739ca5a960a58b0ddbb56dbd9d647e765a4553f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5fe31cb97ec4a2afd738293739ca5a960a58b0ddbb56dbd9d647e765a4553f6", kill_on_drop: false }`
[INFO] [stdout] c5fe31cb97ec4a2afd738293739ca5a960a58b0ddbb56dbd9d647e765a4553f6
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b4fb3df83a5b889e34d11bc860100be6be4d17a56eb72fb92d38c45759aacf4
[INFO] running `Command { std: "docker" "start" "-a" "2b4fb3df83a5b889e34d11bc860100be6be4d17a56eb72fb92d38c45759aacf4", kill_on_drop: false }`
[INFO] [stderr]    Compiling nix v0.29.0
[INFO] [stderr]    Compiling rmp v0.8.14
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling rmp-serde v1.3.0
[INFO] [stderr]    Compiling zygote v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.31s
[INFO] running `Command { std: "docker" "inspect" "2b4fb3df83a5b889e34d11bc860100be6be4d17a56eb72fb92d38c45759aacf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b4fb3df83a5b889e34d11bc860100be6be4d17a56eb72fb92d38c45759aacf4", kill_on_drop: false }`
[INFO] [stdout] 2b4fb3df83a5b889e34d11bc860100be6be4d17a56eb72fb92d38c45759aacf4
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d649850aae9bcd9c10d8083d93e3483254ddc1ead22517ee33b0fd9fe348c88d
[INFO] running `Command { std: "docker" "start" "-a" "d649850aae9bcd9c10d8083d93e3483254ddc1ead22517ee33b0fd9fe348c88d", kill_on_drop: false }`
[INFO] [stderr]    Compiling zygote v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "d649850aae9bcd9c10d8083d93e3483254ddc1ead22517ee33b0fd9fe348c88d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d649850aae9bcd9c10d8083d93e3483254ddc1ead22517ee33b0fd9fe348c88d", kill_on_drop: false }`
[INFO] [stdout] d649850aae9bcd9c10d8083d93e3483254ddc1ead22517ee33b0fd9fe348c88d
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 955774a150a3567a39a2079e2e1570ec2aa92ede69e61840f2ceff4b9fff3469
[INFO] running `Command { std: "docker" "start" "-a" "955774a150a3567a39a2079e2e1570ec2aa92ede69e61840f2ceff4b9fff3469", 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/zygote-52f43f5fe6bc5904)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test pipe::test::basic ... ok
[INFO] [stdout] test pipe::test::validate_type ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/basic.rs (/opt/rustwide/target/debug/deps/basic-8bb2267521928144)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test many_calls ... ok
[INFO] [stdout] test task_success ... ok
[INFO] [stdout] test nested_zygote ... ok
[INFO] [stdout] test wire_error ... ok
[INFO] [stdout] test send_fd ... ok
[INFO] [stdout] test large_payload ... ok
[INFO] [stdout] test send_many_fd ... ok
[INFO] [stdout] test send_too_many_fd ... ok
[INFO] [stdout] test task_failure - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.62s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests zygote
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test src/error.rs - error::WireError (line 36) - compile fail ... ok
[INFO] [stdout] test src/lib.rs - Zygote::init (line 69) ... ok
[INFO] [stdout] test src/lib.rs - Zygote::global (line 92) ... ok
[INFO] [stdout] test src/lib.rs - Zygote::new (line 120) ... ok
[INFO] [stdout] test src/lib.rs - Zygote::new (line 108) ... ok
[INFO] [stdout] test src/error.rs - error::WireError (line 52) ... ok
[INFO] [stdout] test src/lib.rs - (line 8) ... ok
[INFO] [stdout] test src/lib.rs - Zygote::try_run (line 210) ... FAILED
[INFO] [stdout] test src/lib.rs - Zygote::run (line 171) ... ok
[INFO] [stdout] test src/fd.rs - fd::WireFd (line 16) ... ok
[INFO] [stdout] test src/lib.rs - Zygote::run (line 189) ... ok
[INFO] [stdout] test src/lib.rs - Zygote::spawn (line 241) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - Zygote::try_run (line 210) stdout ----
[INFO] [stdout] error: this function depends on never type fallback being `()`
[INFO] [stdout]   --> src/lib.rs:211:38
[INFO] [stdout]    |
[INFO] [stdout]  4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_210_0() {
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/never-type-fallback.html>
[INFO] [stdout]    = help: specify the types explicitly
[INFO] [stdout] note: in edition 2024, the requirement `!: serde_core::ser::Serialize` will fail
[INFO] [stdout]   --> src/lib.rs:217:26
[INFO] [stdout]    |
[INFO] [stdout] 10 | let res = zygote.try_run(|_| panic!("oops"), ()).unwrap_err();
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[deny(dependency_on_unit_never_type_fallback)]` (part of `#[deny(rust_2024_compatibility)]`) on by default
[INFO] [stdout] help: use `()` annotations to avoid fallback changes
[INFO] [stdout]    |
[INFO] [stdout] 10 | let res = zygote.try_run::<_, ()>(|_| panic!("oops"), ()).unwrap_err();
[INFO] [stdout]    |                         +++++++++
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - Zygote::try_run (line 210)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 11 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.34s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "955774a150a3567a39a2079e2e1570ec2aa92ede69e61840f2ceff4b9fff3469", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "955774a150a3567a39a2079e2e1570ec2aa92ede69e61840f2ceff4b9fff3469", kill_on_drop: false }`
[INFO] [stdout] 955774a150a3567a39a2079e2e1570ec2aa92ede69e61840f2ceff4b9fff3469