[INFO] fetching crate gc_plugin 0.1.1... [INFO] testing gc_plugin-0.1.1 against 1.60.0 for beta-1.61-1 [INFO] extracting crate gc_plugin 0.1.1 into /workspace/builds/worker-10/source [INFO] validating manifest of crates.io crate gc_plugin 0.1.1 on toolchain 1.60.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate gc_plugin 0.1.1 [INFO] finished tweaking crates.io crate gc_plugin 0.1.1 [INFO] tweaked toml for crates.io crate gc_plugin 0.1.1 written to /workspace/builds/worker-10/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] a9f3e69e44b602d5a4629dab23d164e116228831d0ec5fafa02fa5e5c7e1d744 [INFO] running `Command { std: "docker" "start" "-a" "a9f3e69e44b602d5a4629dab23d164e116228831d0ec5fafa02fa5e5c7e1d744", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a9f3e69e44b602d5a4629dab23d164e116228831d0ec5fafa02fa5e5c7e1d744", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a9f3e69e44b602d5a4629dab23d164e116228831d0ec5fafa02fa5e5c7e1d744", kill_on_drop: false }` [INFO] [stdout] a9f3e69e44b602d5a4629dab23d164e116228831d0ec5fafa02fa5e5c7e1d744 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] aaf6dfc7db0c9d88e318892d43bf26f1d27439784e3ab367e7dfb1fb57fd3d1f [INFO] running `Command { std: "docker" "start" "-a" "aaf6dfc7db0c9d88e318892d43bf26f1d27439784e3ab367e7dfb1fb57fd3d1f", kill_on_drop: false }` [INFO] [stderr] Compiling gc_plugin v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] error[E0557]: feature has been removed [INFO] [stdout] --> src/lib.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(plugin_registrar, box_syntax)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^ feature has been removed [INFO] [stdout] | [INFO] [stdout] = note: a __rustc_plugin_registrar symbol must now be defined instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0463]: can't find crate for `syntax` [INFO] [stdout] --> src/lib.rs:5:1 [INFO] [stdout] | [INFO] [stdout] 5 | extern crate syntax; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ can't find crate [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0463]: can't find crate for `syntax_ext` [INFO] [stdout] --> src/lib.rs:6:1 [INFO] [stdout] | [INFO] [stdout] 6 | extern crate syntax_ext; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0462]: found staticlib `rustc` instead of rlib or dylib [INFO] [stdout] --> src/lib.rs:8:1 [INFO] [stdout] | [INFO] [stdout] 8 | extern crate rustc; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: please recompile that crate using --crate-type lib [INFO] [stdout] = note: the following crate versions were found: [INFO] [stdout] crate `rustc`: /opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-stable_rt.msan.a [INFO] [stdout] crate `rustc`: /opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-stable_rt.tsan.a [INFO] [stdout] crate `rustc`: /opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-stable_rt.asan.a [INFO] [stdout] crate `rustc`: /opt/rustwide/rustup-home/toolchains/1.60.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-stable_rt.lsan.a [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0463]: can't find crate for `rustc_plugin` [INFO] [stdout] --> src/lib.rs:9:1 [INFO] [stdout] | [INFO] [stdout] 9 | extern crate rustc_plugin; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate [INFO] [stdout] | [INFO] [stdout] = help: maybe you need to install the missing components with: `rustup component add rust-src rustc-dev llvm-tools-preview` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: cannot find attribute `plugin_registrar` in this scope [INFO] [stdout] --> src/lib.rs:23:3 [INFO] [stdout] | [INFO] [stdout] 23 | #[plugin_registrar] [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `plugin_registrar` is in scope, but it is a function, not an attribute [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ty` [INFO] [stdout] --> src/lib.rs:34:19 [INFO] [stdout] | [INFO] [stdout] 34 | generics: ty::LifetimeBounds::empty(), [INFO] [stdout] | ^^ use of undeclared crate or module `ty` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ty` [INFO] [stdout] --> src/lib.rs:38:27 [INFO] [stdout] | [INFO] [stdout] 38 | generics: ty::LifetimeBounds::empty(), [INFO] [stdout] | ^^ use of undeclared crate or module `ty` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ty` [INFO] [stdout] --> src/lib.rs:39:32 [INFO] [stdout] | [INFO] [stdout] 39 | explicit_self: ty::borrowed_explicit_self(), [INFO] [stdout] | ^^ use of undeclared crate or module `ty` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ty` [INFO] [stdout] --> src/lib.rs:41:25 [INFO] [stdout] | [INFO] [stdout] 41 | ret_ty: ty::nil_ty(), [INFO] [stdout] | ^^ use of undeclared crate or module `ty` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ty` [INFO] [stdout] --> src/lib.rs:49:27 [INFO] [stdout] | [INFO] [stdout] 49 | generics: ty::LifetimeBounds::empty(), [INFO] [stdout] | ^^ use of undeclared crate or module `ty` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ty` [INFO] [stdout] --> src/lib.rs:50:32 [INFO] [stdout] | [INFO] [stdout] 50 | explicit_self: ty::borrowed_explicit_self(), [INFO] [stdout] | ^^ use of undeclared crate or module `ty` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ty` [INFO] [stdout] --> src/lib.rs:52:25 [INFO] [stdout] | [INFO] [stdout] 52 | ret_ty: ty::nil_ty(), [INFO] [stdout] | ^^ use of undeclared crate or module `ty` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ty` [INFO] [stdout] --> src/lib.rs:60:27 [INFO] [stdout] | [INFO] [stdout] 60 | generics: ty::LifetimeBounds::empty(), [INFO] [stdout] | ^^ use of undeclared crate or module `ty` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ty` [INFO] [stdout] --> src/lib.rs:61:32 [INFO] [stdout] | [INFO] [stdout] 61 | explicit_self: ty::borrowed_explicit_self(), [INFO] [stdout] | ^^ use of undeclared crate or module `ty` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ty` [INFO] [stdout] --> src/lib.rs:63:25 [INFO] [stdout] | [INFO] [stdout] 63 | ret_ty: ty::nil_ty(), [INFO] [stdout] | ^^ use of undeclared crate or module `ty` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `Registry` in this scope [INFO] [stdout] --> src/lib.rs:24:35 [INFO] [stdout] | [INFO] [stdout] 24 | pub fn plugin_registrar(reg: &mut Registry) { [INFO] [stdout] | ^^^^^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find function `intern` in this scope [INFO] [stdout] --> src/lib.rs:25:35 [INFO] [stdout] | [INFO] [stdout] 25 | reg.register_syntax_extension(intern("derive_Trace"), MultiDecorator(box expand_trace)) [INFO] [stdout] | ^^^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find function, tuple struct or tuple variant `MultiDecorator` in this scope [INFO] [stdout] --> src/lib.rs:25:59 [INFO] [stdout] | [INFO] [stdout] 25 | reg.register_syntax_extension(intern("derive_Trace"), MultiDecorator(box expand_trace)) [INFO] [stdout] | ^^^^^^^^^^^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `ExtCtxt` in this scope [INFO] [stdout] --> src/lib.rs:28:30 [INFO] [stdout] | [INFO] [stdout] 28 | pub fn expand_trace(cx: &mut ExtCtxt, span: Span, mitem: &MetaItem, item: &Annotatable, push: &mut FnMut(Annotatable)) { [INFO] [stdout] | ^^^^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `Span` in this scope [INFO] [stdout] --> src/lib.rs:28:45 [INFO] [stdout] | [INFO] [stdout] 28 | pub fn expand_trace(cx: &mut ExtCtxt, span: Span, mitem: &MetaItem, item: &Annotatable, push: &mut FnMut(Annotatable)) { [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `MetaItem` in this scope [INFO] [stdout] --> src/lib.rs:28:59 [INFO] [stdout] | [INFO] [stdout] 28 | pub fn expand_trace(cx: &mut ExtCtxt, span: Span, mitem: &MetaItem, item: &Annotatable, push: &mut FnMut(Annotatable)) { [INFO] [stdout] | ^^^^^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `Annotatable` in this scope [INFO] [stdout] --> src/lib.rs:28:76 [INFO] [stdout] | [INFO] [stdout] 28 | pub fn expand_trace(cx: &mut ExtCtxt, span: Span, mitem: &MetaItem, item: &Annotatable, push: &mut FnMut(Annotatable)) { [INFO] [stdout] | ^^^^^^^^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `Annotatable` in this scope [INFO] [stdout] --> src/lib.rs:28:106 [INFO] [stdout] | [INFO] [stdout] 28 | pub fn expand_trace(cx: &mut ExtCtxt, span: Span, mitem: &MetaItem, item: &Annotatable, push: &mut FnMut(Annotatable)) { [INFO] [stdout] | ^^^^^^^^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0422]: cannot find struct, variant or union type `TraitDef` in this scope [INFO] [stdout] --> src/lib.rs:29:21 [INFO] [stdout] | [INFO] [stdout] 29 | let trait_def = TraitDef { [INFO] [stdout] | ^^^^^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ty` [INFO] [stdout] --> src/lib.rs:32:19 [INFO] [stdout] | [INFO] [stdout] 32 | path: ty::Path::new(vec!("gc", "Trace")), [INFO] [stdout] | ^^^^ not found in `ty` [INFO] [stdout] | [INFO] [stdout] help: consider importing this struct [INFO] [stdout] | [INFO] [stdout] 12 | use std::path::Path; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0422]: cannot find struct, variant or union type `MethodDef` in this scope [INFO] [stdout] --> src/lib.rs:36:13 [INFO] [stdout] | [INFO] [stdout] 36 | MethodDef { [INFO] [stdout] | ^^^^^^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find function `combine_substructure` in this scope [INFO] [stdout] --> src/lib.rs:44:39 [INFO] [stdout] | [INFO] [stdout] 44 | combine_substructure: combine_substructure(box trace_substructure), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ help: a function with a similar name exists: `trace_substructure` [INFO] [stdout] ... [INFO] [stdout] 78 | fn trace_substructure(cx: &mut ExtCtxt, trait_span: Span, substr: &Substructure) -> P { [INFO] [stdout] | ------------------------------------------------------------------------------------------- similarly named function `trace_substructure` defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0422]: cannot find struct, variant or union type `MethodDef` in this scope [INFO] [stdout] --> src/lib.rs:47:13 [INFO] [stdout] | [INFO] [stdout] 47 | MethodDef { [INFO] [stdout] | ^^^^^^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find function `combine_substructure` in this scope [INFO] [stdout] --> src/lib.rs:55:39 [INFO] [stdout] | [INFO] [stdout] 55 | combine_substructure: combine_substructure(box trace_substructure), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ help: a function with a similar name exists: `trace_substructure` [INFO] [stdout] ... [INFO] [stdout] 78 | fn trace_substructure(cx: &mut ExtCtxt, trait_span: Span, substr: &Substructure) -> P { [INFO] [stdout] | ------------------------------------------------------------------------------------------- similarly named function `trace_substructure` defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0422]: cannot find struct, variant or union type `MethodDef` in this scope [INFO] [stdout] --> src/lib.rs:58:13 [INFO] [stdout] | [INFO] [stdout] 58 | MethodDef { [INFO] [stdout] | ^^^^^^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find function `combine_substructure` in this scope [INFO] [stdout] --> src/lib.rs:66:39 [INFO] [stdout] | [INFO] [stdout] 66 | combine_substructure: combine_substructure(box trace_substructure), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ help: a function with a similar name exists: `trace_substructure` [INFO] [stdout] ... [INFO] [stdout] 78 | fn trace_substructure(cx: &mut ExtCtxt, trait_span: Span, substr: &Substructure) -> P { [INFO] [stdout] | ------------------------------------------------------------------------------------------- similarly named function `trace_substructure` defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `ExtCtxt` in this scope [INFO] [stdout] --> src/lib.rs:78:32 [INFO] [stdout] | [INFO] [stdout] 78 | fn trace_substructure(cx: &mut ExtCtxt, trait_span: Span, substr: &Substructure) -> P { [INFO] [stdout] | ^^^^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `Span` in this scope [INFO] [stdout] --> src/lib.rs:78:53 [INFO] [stdout] | [INFO] [stdout] 78 | fn trace_substructure(cx: &mut ExtCtxt, trait_span: Span, substr: &Substructure) -> P { [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `Substructure` in this scope [INFO] [stdout] --> src/lib.rs:78:68 [INFO] [stdout] | [INFO] [stdout] 78 | fn trace_substructure(cx: &mut ExtCtxt, trait_span: Span, substr: &Substructure) -> P { [INFO] [stdout] | ^^^^^^^^^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `P` in this scope [INFO] [stdout] --> src/lib.rs:78:85 [INFO] [stdout] | [INFO] [stdout] 78 | fn trace_substructure(cx: &mut ExtCtxt, trait_span: Span, substr: &Substructure) -> P { [INFO] [stdout] | ^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `Expr` in this scope [INFO] [stdout] --> src/lib.rs:78:87 [INFO] [stdout] | [INFO] [stdout] 78 | fn trace_substructure(cx: &mut ExtCtxt, trait_span: Span, substr: &Substructure) -> P { [INFO] [stdout] | - help: you might be missing a type parameter: `` ^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0531]: cannot find tuple struct or tuple variant `Struct` in this scope [INFO] [stdout] --> src/lib.rs:98:9 [INFO] [stdout] | [INFO] [stdout] 98 | Struct(_, ref fs) | EnumMatching(_, _, ref fs) => fs, [INFO] [stdout] | ^^^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0531]: cannot find tuple struct or tuple variant `EnumMatching` in this scope [INFO] [stdout] --> src/lib.rs:98:29 [INFO] [stdout] | [INFO] [stdout] 98 | Struct(_, ref fs) | EnumMatching(_, _, ref fs) => fs, [INFO] [stdout] | ^^^^^^^^^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0422]: cannot find struct, variant or union type `FieldInfo` in this scope [INFO] [stdout] --> src/lib.rs:102:10 [INFO] [stdout] | [INFO] [stdout] 102 | for &FieldInfo { ref self_, span, attrs, .. } in fields.iter() { [INFO] [stdout] | ^^^^^^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/lib.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(plugin_registrar, box_syntax)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/lib.rs:2:1 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(rustc_private)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:28:100 [INFO] [stdout] | [INFO] [stdout] 28 | pub fn expand_trace(cx: &mut ExtCtxt, span: Span, mitem: &MetaItem, item: &Annotatable, push: &mut FnMut(Annotatable)) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 28 - pub fn expand_trace(cx: &mut ExtCtxt, span: Span, mitem: &MetaItem, item: &Annotatable, push: &mut FnMut(Annotatable)) { [INFO] [stdout] 28 + pub fn expand_trace(cx: &mut ExtCtxt, span: Span, mitem: &MetaItem, item: &Annotatable, push: &mut dyn FnMut(Annotatable)) { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 42 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0412, E0422, E0425, E0433, E0463, E0531, E0554, E0557. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0412`. [INFO] [stdout] [INFO] [stderr] error: could not compile `gc_plugin` due to 43 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "aaf6dfc7db0c9d88e318892d43bf26f1d27439784e3ab367e7dfb1fb57fd3d1f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "aaf6dfc7db0c9d88e318892d43bf26f1d27439784e3ab367e7dfb1fb57fd3d1f", kill_on_drop: false }` [INFO] [stdout] aaf6dfc7db0c9d88e318892d43bf26f1d27439784e3ab367e7dfb1fb57fd3d1f