[INFO] fetching crate servo-jstraceable-derive 0.1.0...
[INFO] testing servo-jstraceable-derive-0.1.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate servo-jstraceable-derive 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate servo-jstraceable-derive 0.1.0
[INFO] finished tweaking crates.io crate servo-jstraceable-derive 0.1.0
[INFO] tweaked toml for crates.io crate servo-jstraceable-derive 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate servo-jstraceable-derive 0.1.0 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 servo-jstraceable-derive 0.1.0 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-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 67c4a24d4bf40a174184e09c68f43e560a7c69144c31a50dead31dc472901282
[INFO] running `Command { std: "docker" "start" "-a" "67c4a24d4bf40a174184e09c68f43e560a7c69144c31a50dead31dc472901282", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "67c4a24d4bf40a174184e09c68f43e560a7c69144c31a50dead31dc472901282", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67c4a24d4bf40a174184e09c68f43e560a7c69144c31a50dead31dc472901282", kill_on_drop: false }`
[INFO] [stdout] 67c4a24d4bf40a174184e09c68f43e560a7c69144c31a50dead31dc472901282
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe84d0b050d4a4d9e8a991d6946bed45a64b3bfab130831f155d80df791b4269
[INFO] running `Command { std: "docker" "start" "-a" "fe84d0b050d4a4d9e8a991d6946bed45a64b3bfab130831f155d80df791b4269", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling servo-jstraceable-derive v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.07s
[INFO] running `Command { std: "docker" "inspect" "fe84d0b050d4a4d9e8a991d6946bed45a64b3bfab130831f155d80df791b4269", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe84d0b050d4a4d9e8a991d6946bed45a64b3bfab130831f155d80df791b4269", kill_on_drop: false }`
[INFO] [stdout] fe84d0b050d4a4d9e8a991d6946bed45a64b3bfab130831f155d80df791b4269
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da8df170a667d0d10e3ca291d93cf35d751865f1c80f213e1664d56efb6817ba
[INFO] running `Command { std: "docker" "start" "-a" "da8df170a667d0d10e3ca291d93cf35d751865f1c80f213e1664d56efb6817ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling servo-jstraceable-derive v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "da8df170a667d0d10e3ca291d93cf35d751865f1c80f213e1664d56efb6817ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da8df170a667d0d10e3ca291d93cf35d751865f1c80f213e1664d56efb6817ba", kill_on_drop: false }`
[INFO] [stdout] da8df170a667d0d10e3ca291d93cf35d751865f1c80f213e1664d56efb6817ba
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6f3329fba4f10c629bceb1af74d156d15e506f8b7b755a3c435b66f2ffea23c4
[INFO] running `Command { std: "docker" "start" "-a" "6f3329fba4f10c629bceb1af74d156d15e506f8b7b755a3c435b66f2ffea23c4", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests lib.rs (/opt/rustwide/target/debug/deps/servo_jstraceable_derive-45d8e9a8d7a40649)
[INFO] [stderr]    Doc-tests servo_jstraceable_derive
[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 4 tests
[INFO] [stdout] test lib.rs - JSTraceable (line 11) ... FAILED
[INFO] [stdout] test lib.rs - JSTraceable (line 24) ... FAILED
[INFO] [stdout] test lib.rs - JSTraceable (line 51) ... FAILED
[INFO] [stdout] test lib.rs - JSTraceable (line 72) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- lib.rs - JSTraceable (line 11) stdout ----
[INFO] [stdout] error: cannot find derive macro `JSTraceable` in this scope
[INFO] [stdout]   --> lib.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[derive(JSTraceable)]
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `no_trace` in this scope
[INFO] [stdout]   --> lib.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |   #[no_trace]
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `custom_trace` in this scope
[INFO] [stdout]   --> lib.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |   #[custom_trace] // Extern type implements CustomTraceable that is in servo => no problem with orphan rules
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `JSManagedType` in this scope
[INFO] [stdout]   --> lib.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |   js_managed: JSManagedType,
[INFO] [stdout]    |               ^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `NonJSManagedType` in this scope
[INFO] [stdout]   --> lib.rs:16:11
[INFO] [stdout]    |
[INFO] [stdout] 16 |   non_js: NonJSManagedType,
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `Extern` in this scope
[INFO] [stdout]   --> lib.rs:18:24
[INFO] [stdout]    |
[INFO] [stdout] 18 |   extern_managed_type: Extern<JSManagedType>,
[INFO] [stdout]    |                        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   --> /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/iter/traits/collect.rs:397:0
[INFO] [stdout]    |
[INFO] [stdout]    = note: similarly named trait `Extend` defined here
[INFO] [stdout] help: a trait with a similar name exists
[INFO] [stdout]    |
[INFO] [stdout] 18 -   extern_managed_type: Extern<JSManagedType>,
[INFO] [stdout] 18 +   extern_managed_type: Extend<JSManagedType>,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `JSManagedType` in this scope
[INFO] [stdout]   --> lib.rs:18:31
[INFO] [stdout]    |
[INFO] [stdout] 18 |   extern_managed_type: Extern<JSManagedType>,
[INFO] [stdout]    |                               ^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: you might be missing a type parameter
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct S<JSManagedType> {
[INFO] [stdout]    |         +++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- lib.rs - JSTraceable (line 24) stdout ----
[INFO] [stdout] error[E0433]: cannot find module or crate `js` in this scope
[INFO] [stdout]   --> lib.rs:27:41
[INFO] [stdout]    |
[INFO] [stdout] 27 |     unsafe fn trace(&self, tracer: *mut js::jsapi::JSTracer) {
[INFO] [stdout]    |                                         ^^ use of unresolved module or unlinked crate `js`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `js`, use `cargo add js` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find `dom` in `crate`
[INFO] [stdout]   --> lib.rs:41:29
[INFO] [stdout]    |
[INFO] [stdout] 41 |                     <crate::dom::bindings::trace::CustomTraceable>::trace(__binding_2, tracer);
[INFO] [stdout]    |                             ^^^ could not find `dom` in the crate root
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `JSTraceable` in this scope
[INFO] [stdout]   --> lib.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 | unsafe impl JSTraceable for S {
[INFO] [stdout]    |             ^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `S` in this scope
[INFO] [stdout]   --> lib.rs:25:29
[INFO] [stdout]    |
[INFO] [stdout] 25 | unsafe impl JSTraceable for S {
[INFO] [stdout]    |                             ^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0422]: cannot find struct, variant or union type `S` in this scope
[INFO] [stdout]   --> lib.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |             S {
[INFO] [stdout]    |             ^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0422, E0425, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- lib.rs - JSTraceable (line 51) stdout ----
[INFO] [stdout] error[E0433]: cannot find `js` in the crate root
[INFO] [stdout]   --> lib.rs:53:38
[INFO] [stdout]    |
[INFO] [stdout] 53 |     unsafe fn trace(&self, _: *mut ::js::jsapi::JSTracer) { /* nop */}
[INFO] [stdout]    |                                      ^^ could not find `js` in the list of imported crates
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `JSTraceable` in this scope
[INFO] [stdout]   --> lib.rs:52:16
[INFO] [stdout]    |
[INFO] [stdout] 52 | unsafe impl<T> JSTraceable for NoTrace<T> {
[INFO] [stdout]    |                ^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `NoTrace` in this scope
[INFO] [stdout]   --> lib.rs:52:32
[INFO] [stdout]    |
[INFO] [stdout] 52 | unsafe impl<T> JSTraceable for NoTrace<T> {
[INFO] [stdout]    |                                ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0425, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- lib.rs - JSTraceable (line 72) stdout ----
[INFO] [stdout] error: cannot find derive macro `JSTraceable` in this scope
[INFO] [stdout]   --> lib.rs:73:10
[INFO] [stdout]    |
[INFO] [stdout] 73 | #[derive(JSTraceable)]
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `no_trace` in this scope
[INFO] [stdout]   --> lib.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 75 |   #[no_trace = "Safe because both u32 and u64 are empty traceable"]
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `HashMap` in this scope
[INFO] [stdout]   --> lib.rs:76:10
[INFO] [stdout]    |
[INFO] [stdout] 76 |   field: HashMap<u32, u64>,
[INFO] [stdout]    |          ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 72 + use std::collections::HashMap;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     lib.rs - JSTraceable (line 11)
[INFO] [stdout]     lib.rs - JSTraceable (line 24)
[INFO] [stdout]     lib.rs - JSTraceable (line 51)
[INFO] [stdout]     lib.rs - JSTraceable (line 72)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 4 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.37s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.54s; merged doctests compilation took 0.16s
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "6f3329fba4f10c629bceb1af74d156d15e506f8b7b755a3c435b66f2ffea23c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f3329fba4f10c629bceb1af74d156d15e506f8b7b755a3c435b66f2ffea23c4", kill_on_drop: false }`
[INFO] [stdout] 6f3329fba4f10c629bceb1af74d156d15e506f8b7b755a3c435b66f2ffea23c4
