[INFO] fetching crate reactive-signals 0.1.0-alpha.4...
[INFO] testing reactive-signals-0.1.0-alpha.4 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8
[INFO] extracting crate reactive-signals 0.1.0-alpha.4 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate reactive-signals 0.1.0-alpha.4
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate reactive-signals 0.1.0-alpha.4
[INFO] tweaked toml for crates.io crate reactive-signals 0.1.0-alpha.4 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate reactive-signals 0.1.0-alpha.4 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate reactive-signals 0.1.0-alpha.4 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-test v0.3.34
[INFO] [stderr]   Downloaded tempfile v3.4.0
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.34
[INFO] [stderr]   Downloaded io-lifetimes v1.0.9
[INFO] [stderr]   Downloaded proc-macro2 v1.0.53
[INFO] [stderr]   Downloaded wasm-bindgen-test-macro v0.3.34
[INFO] [stderr]   Downloaded syn v2.0.8
[INFO] [stderr]   Downloaded sys-info v0.9.1
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[INFO] [stderr]   Downloaded str_stack v0.1.0
[INFO] [stderr]   Downloaded rustc-demangle v0.1.22
[INFO] [stderr]   Downloaded thousands v0.2.0
[INFO] [stderr]   Downloaded ciborium-ll v0.2.0
[INFO] [stderr]   Downloaded camino v1.1.4
[INFO] [stderr]   Downloaded ahash v0.8.3
[INFO] [stderr]   Downloaded winnow v0.4.1
[INFO] [stderr]   Downloaded rustix v0.36.11
[INFO] [stderr]   Downloaded dhat v0.3.2
[INFO] [stderr]   Downloaded regex v1.7.2
[INFO] [stderr]   Downloaded inferno v0.11.15
[INFO] [stderr]   Downloaded markdown-includes v0.1.0
[INFO] [stderr]   Downloaded uuid v1.3.0
[INFO] [stderr]   Downloaded cargo-platform v0.1.2
[INFO] [stderr]   Downloaded insta v1.29.0
[INFO] [stderr]   Downloaded object v0.30.3
[INFO] [stderr]   Downloaded string-sections v0.1.0
[INFO] [stderr]   Downloaded pulldown-cmark v0.9.2
[INFO] [stderr]   Downloaded ciborium-io v0.2.0
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[INFO] [stderr]   Downloaded symbolic-demangle v10.2.1
[INFO] [stderr]   Downloaded pprof v0.11.1
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[INFO] [stderr]   Downloaded gimli v0.27.2
[INFO] [stderr]   Downloaded cpp_demangle v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6189fc6caba794c08e97d6809e18abfa806b4f961e7ce4a09a554221a88d88a7
[INFO] running `Command { std: "docker" "start" "-a" "6189fc6caba794c08e97d6809e18abfa806b4f961e7ce4a09a554221a88d88a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6189fc6caba794c08e97d6809e18abfa806b4f961e7ce4a09a554221a88d88a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6189fc6caba794c08e97d6809e18abfa806b4f961e7ce4a09a554221a88d88a7", kill_on_drop: false }`
[INFO] [stdout] 6189fc6caba794c08e97d6809e18abfa806b4f961e7ce4a09a554221a88d88a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ccbf3e830867ddff6aeb905a4e3e8b2f2257cecd8b22a27bc0a0fa6b0532f24f
[INFO] running `Command { std: "docker" "start" "-a" "ccbf3e830867ddff6aeb905a4e3e8b2f2257cecd8b22a27bc0a0fa6b0532f24f", kill_on_drop: false }`
[INFO] [stderr]    Compiling reactive-signals v0.1.0-alpha.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `DepthFirstIter` is never constructed
[INFO] [stdout]  --> src/arena_tree/iter.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct DepthFirstIter<'a, T> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/arena_tree/tree.rs:112:26
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub fn iter_mut_from(&mut self, id: NodeId) -> MutDepthFirstIter<T> {
[INFO] [stdout]     |                          ^^^^^^^^^                 ^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub fn iter_mut_from(&mut self, id: NodeId) -> MutDepthFirstIter<'_, T> {
[INFO] [stdout]     |                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/primitives/any_data.rs:77:16
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn val_ref(&self) -> std::cell::Ref<dyn Any> {
[INFO] [stdout]    |                ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                |
[INFO] [stdout]    |                the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn val_ref(&self) -> std::cell::Ref<'_, dyn Any> {
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/primitives/any_data.rs:81:16
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn val_mut(&self) -> std::cell::RefMut<dyn Any> {
[INFO] [stdout]    |                ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                |
[INFO] [stdout]    |                the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn val_mut(&self) -> std::cell::RefMut<'_, dyn Any> {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/primitives/signal_set.rs:37:16
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn vec_mut(&self) -> std::cell::RefMut<ArrVec<N, T>> {
[INFO] [stdout]    |                ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                |
[INFO] [stdout]    |                the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn vec_mut(&self) -> std::cell::RefMut<'_, ArrVec<N, T>> {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/primitives/signal_set.rs:42:16
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn vec_ref(&self) -> std::cell::Ref<ArrVec<N, T>> {
[INFO] [stdout]    |                ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                |
[INFO] [stdout]    |                the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn vec_ref(&self) -> std::cell::Ref<'_, ArrVec<N, T>> {
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/runtimes/client.rs:89:15
[INFO] [stdout]    |
[INFO] [stdout] 89 |     fn rt_ref(&self) -> std::cell::Ref<RuntimeInner<ClientRuntime>> {
[INFO] [stdout]    |               ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |               |
[INFO] [stdout]    |               the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 89 |     fn rt_ref(&self) -> std::cell::Ref<'_, RuntimeInner<ClientRuntime>> {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/runtimes/client.rs:94:15
[INFO] [stdout]    |
[INFO] [stdout] 94 |     fn rt_mut(&self) -> std::cell::RefMut<RuntimeInner<ClientRuntime>> {
[INFO] [stdout]    |               ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |               |
[INFO] [stdout]    |               the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 94 |     fn rt_mut(&self) -> std::cell::RefMut<'_, RuntimeInner<ClientRuntime>> {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/scope/scope_inner.rs:55:27
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub(crate) fn vec_ref(&self) -> std::cell::Ref<Vec<SignalInner<RT>>> {
[INFO] [stdout]    |                           ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub(crate) fn vec_ref(&self) -> std::cell::Ref<'_, Vec<SignalInner<RT>>> {
[INFO] [stdout]    |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/scope/scope_inner.rs:60:16
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn vec_mut(&self) -> std::cell::RefMut<Vec<SignalInner<RT>>> {
[INFO] [stdout]    |                ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                |
[INFO] [stdout]    |                the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn vec_mut(&self) -> std::cell::RefMut<'_, Vec<SignalInner<RT>>> {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "ccbf3e830867ddff6aeb905a4e3e8b2f2257cecd8b22a27bc0a0fa6b0532f24f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccbf3e830867ddff6aeb905a4e3e8b2f2257cecd8b22a27bc0a0fa6b0532f24f", kill_on_drop: false }`
[INFO] [stdout] ccbf3e830867ddff6aeb905a4e3e8b2f2257cecd8b22a27bc0a0fa6b0532f24f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3626678a43ed05a9fcb988cfbf5684e4e23f391f8ccfa910757240d0a7f32283
[INFO] running `Command { std: "docker" "start" "-a" "3626678a43ed05a9fcb988cfbf5684e4e23f391f8ccfa910757240d0a7f32283", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.53
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling serde_derive v1.0.158
[INFO] [stderr]    Compiling serde v1.0.158
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.84
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling bumpalo v3.12.0
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.53/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling wasm-bindgen v0.2.84
[INFO] [stderr]    Compiling serde_json v1.0.94
[INFO] [stderr]    Compiling itoa v1.0.6
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling camino v1.1.4
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "3626678a43ed05a9fcb988cfbf5684e4e23f391f8ccfa910757240d0a7f32283", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3626678a43ed05a9fcb988cfbf5684e4e23f391f8ccfa910757240d0a7f32283", kill_on_drop: false }`
[INFO] [stdout] 3626678a43ed05a9fcb988cfbf5684e4e23f391f8ccfa910757240d0a7f32283
