[INFO] fetching crate rudo-gc-derive 0.8.19...
[INFO] testing rudo-gc-derive-0.8.19 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rudo-gc-derive 0.8.19 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate rudo-gc-derive 0.8.19
[INFO] finished tweaking crates.io crate rudo-gc-derive 0.8.19
[INFO] tweaked toml for crates.io crate rudo-gc-derive 0.8.19 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rudo-gc-derive 0.8.19 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rudo-gc-derive 0.8.19 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "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-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dcf538cd38e76536892edb5397cbe1ef8213268bdb0eeba34fdf07f975be652b
[INFO] running `Command { std: "docker" "start" "-a" "dcf538cd38e76536892edb5397cbe1ef8213268bdb0eeba34fdf07f975be652b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dcf538cd38e76536892edb5397cbe1ef8213268bdb0eeba34fdf07f975be652b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcf538cd38e76536892edb5397cbe1ef8213268bdb0eeba34fdf07f975be652b", kill_on_drop: false }`
[INFO] [stdout] dcf538cd38e76536892edb5397cbe1ef8213268bdb0eeba34fdf07f975be652b
[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-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 24a441ea9666187c59ac0b1cddcd4ad3deafa575b09c557a465ac87ead58bc14
[INFO] running `Command { std: "docker" "start" "-a" "24a441ea9666187c59ac0b1cddcd4ad3deafa575b09c557a465ac87ead58bc14", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.104
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling syn v2.0.112
[INFO] [stderr]    Compiling rudo-gc-derive v0.8.19 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.62s
[INFO] running `Command { std: "docker" "inspect" "24a441ea9666187c59ac0b1cddcd4ad3deafa575b09c557a465ac87ead58bc14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24a441ea9666187c59ac0b1cddcd4ad3deafa575b09c557a465ac87ead58bc14", kill_on_drop: false }`
[INFO] [stdout] 24a441ea9666187c59ac0b1cddcd4ad3deafa575b09c557a465ac87ead58bc14
[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-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d671d41d0e7c9f88c9bbeca8100fb6393004855c9edee968be98774f21f5050
[INFO] running `Command { std: "docker" "start" "-a" "0d671d41d0e7c9f88c9bbeca8100fb6393004855c9edee968be98774f21f5050", kill_on_drop: false }`
[INFO] [stderr]    Compiling rudo-gc-derive v0.8.19 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "0d671d41d0e7c9f88c9bbeca8100fb6393004855c9edee968be98774f21f5050", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d671d41d0e7c9f88c9bbeca8100fb6393004855c9edee968be98774f21f5050", kill_on_drop: false }`
[INFO] [stdout] 0d671d41d0e7c9f88c9bbeca8100fb6393004855c9edee968be98774f21f5050
[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-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5196360e44dfb97d6b44a8b021b98e2f2bd57f95793833d53e23e2592455fbe1
[INFO] running `Command { std: "docker" "start" "-a" "5196360e44dfb97d6b44a8b021b98e2f2bd57f95793833d53e23e2592455fbe1", 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/rudo_gc_derive-9855020e5e8d1963)
[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 rudo_gc_derive
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - derive_gc_cell (line 473) ... FAILED
[INFO] [stdout] test src/lib.rs - derive_gc_cell (line 442) ... FAILED
[INFO] [stdout] test src/lib.rs - derive_gc_cell (line 455) ... FAILED
[INFO] [stdout] test src/lib.rs - derive_trace (line 268) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - derive_gc_cell (line 473) stdout ----
[INFO] [stdout] error[E0433]: cannot find module or crate `rudo_gc` in this scope
[INFO] [stdout]    --> src/lib.rs:474:5
[INFO] [stdout]     |
[INFO] [stdout] 474 | use rudo_gc::{Gc, Trace, cell::GcCell};
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] [stdout]     |     ^^^^^^^ use of unresolved module or unlinked crate `rudo_gc`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `rudo_gc`, use `cargo add rudo_gc` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `rudo_gc`
[INFO] [stdout]    --> src/lib.rs:474:5
[INFO] [stdout]     |
[INFO] [stdout] 474 | use rudo_gc::{Gc, Trace, cell::GcCell};
[INFO] [stdout]     |     ^^^^^^^ use of unresolved module or unlinked crate `rudo_gc`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `rudo_gc`, use `cargo add rudo_gc` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - derive_gc_cell (line 442) stdout ----
[INFO] [stdout] error[E0433]: cannot find module or crate `rudo_gc` in this scope
[INFO] [stdout]    --> src/lib.rs:443:5
[INFO] [stdout]     |
[INFO] [stdout] 443 | use rudo_gc::{Gc, Trace, cell::GcCell};
[INFO] [stdout]     |     ^^^^^^^ use of unresolved module or unlinked crate `rudo_gc`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `rudo_gc`, use `cargo add rudo_gc` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `rudo_gc`
[INFO] [stdout]    --> src/lib.rs:443:5
[INFO] [stdout]     |
[INFO] [stdout] 443 | use rudo_gc::{Gc, Trace, cell::GcCell};
[INFO] [stdout]     |     ^^^^^^^ use of unresolved module or unlinked crate `rudo_gc`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `rudo_gc`, use `cargo add rudo_gc` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `Other` in this scope
[INFO] [stdout]    --> src/lib.rs:447:18
[INFO] [stdout]     |
[INFO] [stdout] 447 |     gc_field: Gc<Other>,      // Auto-implements GcCapture
[INFO] [stdout]     |                  ^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: there is an enum variant `std::io::ErrorKind::Other`; try using the variant's enum
[INFO] [stdout]     |
[INFO] [stdout] 447 -     gc_field: Gc<Other>,      // Auto-implements GcCapture
[INFO] [stdout] 447 +     gc_field: Gc<std::io::ErrorKind>,      // Auto-implements GcCapture
[INFO] [stdout]     |
[INFO] [stdout] help: you might be missing a type parameter
[INFO] [stdout]     |
[INFO] [stdout] 446 | struct MyStruct<Other> {
[INFO] [stdout]     |                +++++++
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0432, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - derive_gc_cell (line 455) stdout ----
[INFO] [stdout] error[E0405]: cannot find trait `GcCapture` in this scope
[INFO] [stdout]    --> src/lib.rs:456:13
[INFO] [stdout]     |
[INFO] [stdout] 456 | unsafe impl GcCapture for MyStruct {
[INFO] [stdout]     |             ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `MyStruct` in this scope
[INFO] [stdout]    --> src/lib.rs:456:27
[INFO] [stdout]     |
[INFO] [stdout] 456 | unsafe impl GcCapture for MyStruct {
[INFO] [stdout]     |                           ^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `NonNull` in this scope
[INFO] [stdout]    --> src/lib.rs:457:51
[INFO] [stdout]     |
[INFO] [stdout] 457 |     fn capture_gc_ptrs_into(&self, ptrs: &mut Vec<NonNull<GcBox<()>>>) {
[INFO] [stdout]     |                                                   ^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 455 + use std::ptr::NonNull;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `GcBox` in this scope
[INFO] [stdout]    --> src/lib.rs:457:59
[INFO] [stdout]     |
[INFO] [stdout] 457 |     fn capture_gc_ptrs_into(&self, ptrs: &mut Vec<NonNull<GcBox<()>>>) {
[INFO] [stdout]     |                                                           ^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0425.
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - derive_trace (line 268) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `rudo_gc`
[INFO] [stdout]    --> src/lib.rs:269:5
[INFO] [stdout]     |
[INFO] [stdout] 269 | use rudo_gc::Trace;
[INFO] [stdout]     |     ^^^^^^^ use of unresolved module or unlinked crate `rudo_gc`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `rudo_gc`, use `cargo add rudo_gc` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `Gc` in this scope
[INFO] [stdout]    --> src/lib.rs:273:13
[INFO] [stdout]     |
[INFO] [stdout] 273 |     field1: Gc<OtherStruct>,
[INFO] [stdout]     |             ^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `OtherStruct` in this scope
[INFO] [stdout]    --> src/lib.rs:273:16
[INFO] [stdout]     |
[INFO] [stdout] 273 |     field1: Gc<OtherStruct>,
[INFO] [stdout]     |                ^^^^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: you might be missing a type parameter
[INFO] [stdout]     |
[INFO] [stdout] 272 | struct MyStruct<OtherStruct> {
[INFO] [stdout]     |                +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `Gc` in this scope
[INFO] [stdout]    --> src/lib.rs:274:17
[INFO] [stdout]     |
[INFO] [stdout] 274 |     field2: Vec<Gc<AnotherStruct>>,
[INFO] [stdout]     |                 ^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `AnotherStruct` in this scope
[INFO] [stdout]    --> src/lib.rs:274:20
[INFO] [stdout]     |
[INFO] [stdout] 274 |     field2: Vec<Gc<AnotherStruct>>,
[INFO] [stdout]     |                    ^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: you might be missing a type parameter
[INFO] [stdout]     |
[INFO] [stdout] 272 | struct MyStruct<AnotherStruct> {
[INFO] [stdout]     |                +++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0432.
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - derive_gc_cell (line 442)
[INFO] [stdout]     src/lib.rs - derive_gc_cell (line 455)
[INFO] [stdout]     src/lib.rs - derive_gc_cell (line 473)
[INFO] [stdout]     src/lib.rs - derive_trace (line 268)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 4 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5196360e44dfb97d6b44a8b021b98e2f2bd57f95793833d53e23e2592455fbe1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5196360e44dfb97d6b44a8b021b98e2f2bd57f95793833d53e23e2592455fbe1", kill_on_drop: false }`
[INFO] [stdout] 5196360e44dfb97d6b44a8b021b98e2f2bd57f95793833d53e23e2592455fbe1
