[INFO] fetching crate reactive-signals 0.1.0-alpha.4... [INFO] testing reactive-signals-0.1.0-alpha.4 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1 [INFO] extracting crate reactive-signals 0.1.0-alpha.4 into /workspace/builds/worker-1-tc2/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-1-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate reactive-signals 0.1.0-alpha.4 on toolchain b83b707f97d809763b7861afa7638871f3339a33 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7241da7334ea5c85bb85b8c7214867274aa92c20dce4670ef7e1abeb79df37db [INFO] running `Command { std: "docker" "start" "-a" "7241da7334ea5c85bb85b8c7214867274aa92c20dce4670ef7e1abeb79df37db", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7241da7334ea5c85bb85b8c7214867274aa92c20dce4670ef7e1abeb79df37db", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7241da7334ea5c85bb85b8c7214867274aa92c20dce4670ef7e1abeb79df37db", kill_on_drop: false }` [INFO] [stdout] 7241da7334ea5c85bb85b8c7214867274aa92c20dce4670ef7e1abeb79df37db [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d24608da044c17c5d090c27843a72177e36a5616b2002a196b1b66a3dce5f538 [INFO] running `Command { std: "docker" "start" "-a" "d24608da044c17c5d090c27843a72177e36a5616b2002a196b1b66a3dce5f538", 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 { [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 { [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 { [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> { [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> { [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> { [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> { [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> { [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> { [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> { [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> { [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>> { [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>> { [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>> { [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>> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.70s [INFO] running `Command { std: "docker" "inspect" "d24608da044c17c5d090c27843a72177e36a5616b2002a196b1b66a3dce5f538", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d24608da044c17c5d090c27843a72177e36a5616b2002a196b1b66a3dce5f538", kill_on_drop: false }` [INFO] [stdout] d24608da044c17c5d090c27843a72177e36a5616b2002a196b1b66a3dce5f538 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 000fc0cf532494f421123cef825143f1a49a7100ccb1a81c88dc022b8ba182c9 [INFO] running `Command { std: "docker" "start" "-a" "000fc0cf532494f421123cef825143f1a49a7100ccb1a81c88dc022b8ba182c9", 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 log v0.4.17 [INFO] [stderr] Compiling wasm-bindgen-shared v0.2.84 [INFO] [stderr] Compiling libc v0.2.140 [INFO] [stderr] Compiling once_cell v1.17.1 [INFO] [stderr] Compiling bumpalo v3.12.0 [INFO] [stderr] Compiling crossbeam-utils v0.8.15 [INFO] [stderr] Compiling serde_json v1.0.94 [INFO] [stderr] Compiling quote v1.0.26 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling indexmap v1.9.2 [INFO] [stderr] Compiling memoffset v0.8.0 [INFO] [stderr] Compiling crossbeam-epoch v0.9.14 [INFO] [stderr] Compiling wasm-bindgen v0.2.84 [INFO] [stderr] Compiling either v1.8.1 [INFO] [stderr] Compiling itoa v1.0.6 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling ryu v1.0.13 [INFO] [stderr] Compiling unicase v2.6.0 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling semver v1.0.17 [INFO] [stderr] Compiling rayon-core v1.11.0 [INFO] [stderr] Compiling thiserror v1.0.40 [INFO] [stderr] Compiling camino v1.1.4 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Compiling itertools v0.10.5 [INFO] [stderr] Compiling pulldown-cmark v0.9.2 [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 plotters-backend v0.3.4 [INFO] [stderr] Compiling os_str_bytes v6.5.0 [INFO] [stderr] Compiling half v1.8.2 [INFO] [stderr] Compiling unicode-width v0.1.10 [INFO] [stderr] Compiling anyhow v1.0.70 [INFO] [stderr] Compiling winnow v0.4.1 [INFO] [stderr] Compiling ciborium-io v0.2.0 [INFO] [stderr] Compiling getopts v0.2.21 [INFO] [stderr] Compiling textwrap v0.16.0 [INFO] [stderr] Compiling ciborium-ll v0.2.0 [INFO] [stderr] Compiling regex-syntax v0.6.29 [INFO] [stderr] Compiling crossbeam-channel v0.5.7 [INFO] [stderr] Compiling plotters-svg v0.3.3 [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" "000fc0cf532494f421123cef825143f1a49a7100ccb1a81c88dc022b8ba182c9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "000fc0cf532494f421123cef825143f1a49a7100ccb1a81c88dc022b8ba182c9", kill_on_drop: false }` [INFO] [stdout] 000fc0cf532494f421123cef825143f1a49a7100ccb1a81c88dc022b8ba182c9