[INFO] fetching crate zygote 0.1.2...
[INFO] testing zygote-0.1.2 against beta-2026-03-05 for beta-1.95-1
[INFO] extracting crate zygote 0.1.2 into /workspace/builds/worker-5-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-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate zygote 0.1.2 on toolchain beta-2026-03-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-03-05" "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-2026-03-05" "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] [stderr]       Adding nix v0.29.0 (available: v0.31.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-03-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b7a97ca073ababd0fce850ea05ba3c8d0c20d6d4a2c84af3ba10e510b7121556
[INFO] running `Command { std: "docker" "start" "-a" "b7a97ca073ababd0fce850ea05ba3c8d0c20d6d4a2c84af3ba10e510b7121556", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7a97ca073ababd0fce850ea05ba3c8d0c20d6d4a2c84af3ba10e510b7121556", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7a97ca073ababd0fce850ea05ba3c8d0c20d6d4a2c84af3ba10e510b7121556", kill_on_drop: false }`
[INFO] [stdout] b7a97ca073ababd0fce850ea05ba3c8d0c20d6d4a2c84af3ba10e510b7121556
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01797598b6be3169550fd433204cc88613bbabba3cf32351ceed1851707e8a09
[INFO] running `Command { std: "docker" "start" "-a" "01797598b6be3169550fd433204cc88613bbabba3cf32351ceed1851707e8a09", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.183
[INFO] [stderr]    Compiling memoffset v0.9.1
[INFO] [stderr]    Compiling nix v0.29.0
[INFO] [stderr]    Compiling rmp v0.8.15
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]    Compiling rmp-serde v1.3.1
[INFO] [stderr]    Compiling thiserror v2.0.18
[INFO] [stderr]    Compiling zygote v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: direct cast of function item into an integer
[INFO] [stdout]    --> src/lib.rs:225:42
[INFO] [stdout]     |
[INFO] [stdout] 225 |         let runner = runner::<Args, Ret> as usize;
[INFO] [stdout]     |                                          ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(function_casts_as_integer)]` on by default
[INFO] [stdout] help: first cast to a pointer `as *const ()`
[INFO] [stdout]     |
[INFO] [stdout] 225 |         let runner = runner::<Args, Ret> as *const () as usize;
[INFO] [stdout]     |                                          ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.68s
[INFO] running `Command { std: "docker" "inspect" "01797598b6be3169550fd433204cc88613bbabba3cf32351ceed1851707e8a09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01797598b6be3169550fd433204cc88613bbabba3cf32351ceed1851707e8a09", kill_on_drop: false }`
[INFO] [stdout] 01797598b6be3169550fd433204cc88613bbabba3cf32351ceed1851707e8a09
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cdc212edf492341b4a8ef33b22fb0dabf324b7e9054f1051a619541b4061e136
[INFO] running `Command { std: "docker" "start" "-a" "cdc212edf492341b4a8ef33b22fb0dabf324b7e9054f1051a619541b4061e136", kill_on_drop: false }`
[INFO] [stdout] warning: direct cast of function item into an integer
[INFO] [stdout]    --> src/lib.rs:225:42
[INFO] [stdout]     |
[INFO] [stdout] 225 |         let runner = runner::<Args, Ret> as usize;
[INFO] [stdout]     |                                          ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(function_casts_as_integer)]` on by default
[INFO] [stdout] help: first cast to a pointer `as *const ()`
[INFO] [stdout]     |
[INFO] [stdout] 225 |         let runner = runner::<Args, Ret> as *const () as usize;
[INFO] [stdout]     |                                          ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling zygote v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: direct cast of function item into an integer
[INFO] [stdout]    --> src/lib.rs:225:42
[INFO] [stdout]     |
[INFO] [stdout] 225 |         let runner = runner::<Args, Ret> as usize;
[INFO] [stdout]     |                                          ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(function_casts_as_integer)]` on by default
[INFO] [stdout] help: first cast to a pointer `as *const ()`
[INFO] [stdout]     |
[INFO] [stdout] 225 |         let runner = runner::<Args, Ret> as *const () as usize;
[INFO] [stdout]     |                                          ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `Command { std: "docker" "inspect" "cdc212edf492341b4a8ef33b22fb0dabf324b7e9054f1051a619541b4061e136", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdc212edf492341b4a8ef33b22fb0dabf324b7e9054f1051a619541b4061e136", kill_on_drop: false }`
[INFO] [stdout] cdc212edf492341b4a8ef33b22fb0dabf324b7e9054f1051a619541b4061e136
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b40ff9518e008c391410b4a2b1b58832f2052151fea4a133895bd9de91a0fe7d
[INFO] running `Command { std: "docker" "start" "-a" "b40ff9518e008c391410b4a2b1b58832f2052151fea4a133895bd9de91a0fe7d", kill_on_drop: false }`
[INFO] [stderr] warning: direct cast of function item into an integer
[INFO] [stdout] 
[INFO] [stderr]    --> src/lib.rs:225:42
[INFO] [stdout] running 2 tests
[INFO] [stderr]     |
[INFO] [stdout] test pipe::test::validate_type ... ok
[INFO] [stderr] 225 |         let runner = runner::<Args, Ret> as usize;
[INFO] [stdout] test pipe::test::basic ... ok
[INFO] [stderr]     |                                          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]     = note: `#[warn(function_casts_as_integer)]` on by default
[INFO] [stdout] 
[INFO] [stderr] help: first cast to a pointer `as *const ()`
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stdout] running 9 tests
[INFO] [stderr] 225 |         let runner = runner::<Args, Ret> as *const () as usize;
[INFO] [stderr]     |                                          ++++++++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `zygote` (lib) generated 1 warning (run `cargo fix --lib -p zygote` to apply 1 suggestion)
[INFO] [stderr] warning: `zygote` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/zygote-91e86a99a5b585e0)
[INFO] [stderr]      Running tests/basic.rs (/opt/rustwide/target/debug/deps/basic-86e6028a25ca1405)
[INFO] [stdout] test task_success ... ok
[INFO] [stdout] test wire_error ... ok
[INFO] [stdout] test nested_zygote ... ok
[INFO] [stdout] test many_calls ... ok
[INFO] [stdout] test send_fd ... ok
[INFO] [stdout] test task_failure - should panic ... ok
[INFO] [stdout] test large_payload ... ok
[INFO] [stdout] test send_many_fd ... ok
[INFO] [stdout] test send_too_many_fd ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.11s
[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::try_run (line 210) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 8) ... ok
[INFO] [stdout] test src/lib.rs - Zygote::new (line 120) ... ok
[INFO] [stdout] test src/lib.rs - Zygote::init (line 69) ... ok
[INFO] [stdout] test src/lib.rs - Zygote::run (line 189) ... ok
[INFO] [stdout] test src/lib.rs - Zygote::global (line 92) ... ok
[INFO] [stdout] test src/lib.rs - Zygote::spawn (line 241) ... ok
[INFO] [stdout] test src/error.rs - error::WireError (line 52) ... ok
[INFO] [stdout] test src/lib.rs - Zygote::run (line 171) ... ok
[INFO] [stdout] test src/lib.rs - Zygote::new (line 108) ... ok
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] [stdout] test src/fd.rs - fd::WireFd (line 16) ... 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] 211 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_210_0() {
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[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] 217 | let res = zygote.try_run(|_| panic!("oops"), ()).unwrap_err();
[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]     = 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] 217 | 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 1.50s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b40ff9518e008c391410b4a2b1b58832f2052151fea4a133895bd9de91a0fe7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b40ff9518e008c391410b4a2b1b58832f2052151fea4a133895bd9de91a0fe7d", kill_on_drop: false }`
[INFO] [stdout] b40ff9518e008c391410b4a2b1b58832f2052151fea4a133895bd9de91a0fe7d
