[INFO] fetching crate peg-syntax-ext 0.5.7... [INFO] testing peg-syntax-ext-0.5.7 against beta-2022-04-10 for beta-1.61-1 [INFO] extracting crate peg-syntax-ext 0.5.7 into /workspace/builds/worker-1/source [INFO] validating manifest of crates.io crate peg-syntax-ext 0.5.7 on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate peg-syntax-ext 0.5.7 [INFO] finished tweaking crates.io crate peg-syntax-ext 0.5.7 [INFO] tweaked toml for crates.io crate peg-syntax-ext 0.5.7 written to /workspace/builds/worker-1/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+beta-2022-04-10" "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] 9abe3b8c236fc62cce9c44071987b4fc2d67c3bc4dd9ca7beeb59591858afcfd [INFO] running `Command { std: "docker" "start" "-a" "9abe3b8c236fc62cce9c44071987b4fc2d67c3bc4dd9ca7beeb59591858afcfd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9abe3b8c236fc62cce9c44071987b4fc2d67c3bc4dd9ca7beeb59591858afcfd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9abe3b8c236fc62cce9c44071987b4fc2d67c3bc4dd9ca7beeb59591858afcfd", kill_on_drop: false }` [INFO] [stdout] 9abe3b8c236fc62cce9c44071987b4fc2d67c3bc4dd9ca7beeb59591858afcfd [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] efe2c19bcc573df4e8c060a05e26d76d7ac18e8a5bdce55086fa9835a6a4149a [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "efe2c19bcc573df4e8c060a05e26d76d7ac18e8a5bdce55086fa9835a6a4149a", kill_on_drop: false }` [INFO] [stderr] Compiling peg v0.5.7 [INFO] [stderr] Compiling peg-syntax-ext v0.5.7 (/opt/rustwide/workdir) [INFO] [stdout] error[E0557]: feature has been removed [INFO] [stdout] --> lib.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(plugin_registrar, rustc_private)] [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 `rustc_plugin` [INFO] [stdout] --> lib.rs:2:1 [INFO] [stdout] | [INFO] [stdout] 2 | 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[E0463]: can't find crate for `syntax` [INFO] [stdout] --> lib.rs:3:14 [INFO] [stdout] | [INFO] [stdout] 3 | #[macro_use] pub extern crate syntax; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0463]: can't find crate for `rustc_errors` [INFO] [stdout] --> lib.rs:4:1 [INFO] [stdout] | [INFO] [stdout] 4 | extern crate rustc_errors as errors; [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[E0463]: can't find crate for `smallvec` [INFO] [stdout] --> lib.rs:5:14 [INFO] [stdout] | [INFO] [stdout] 5 | #[macro_use] extern crate smallvec; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ can't find crate [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: cannot find attribute `plugin_registrar` in this scope [INFO] [stdout] --> 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: cannot find macro `panictry` in this scope [INFO] [stdout] --> lib.rs:80:28 [INFO] [stdout] | [INFO] [stdout] 80 | while let Some(item) = panictry!(p.parse_item()) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: cannot find macro `smallvec` in this scope [INFO] [stdout] --> lib.rs:84:21 [INFO] [stdout] | [INFO] [stdout] 84 | MacEager::items(smallvec![cx.item_mod(sp, sp, ident, vec![], items)]) [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `smallvec` is imported here, but it is an unresolved item, not a macro [INFO] [stdout] --> lib.rs:5:14 [INFO] [stdout] | [INFO] [stdout] 5 | #[macro_use] extern crate smallvec; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: cannot find macro `panictry` in this scope [INFO] [stdout] --> lib.rs:93:39 [INFO] [stdout] | [INFO] [stdout] 93 | let arg = cx.expander().fold_expr(panictry!(parser.parse_expr())); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Symbol` [INFO] [stdout] --> lib.rs:26:13 [INFO] [stdout] | [INFO] [stdout] 26 | Symbol::intern("peg"), [INFO] [stdout] | ^^^^^^ use of undeclared type `Symbol` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Symbol` [INFO] [stdout] --> lib.rs:30:13 [INFO] [stdout] | [INFO] [stdout] 30 | Symbol::intern("peg_file"), [INFO] [stdout] | ^^^^^^ use of undeclared type `Symbol` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `source_map` [INFO] [stdout] --> lib.rs:34:48 [INFO] [stdout] | [INFO] [stdout] 34 | fn expand_peg_str<'s>(cx: &'s mut ExtCtxt, sp: source_map::Span, ident: ast::Ident, tts: Vec) -> Box { [INFO] [stdout] | ^^^^^^^^^^ use of undeclared crate or module `source_map` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ast` [INFO] [stdout] --> lib.rs:34:73 [INFO] [stdout] | [INFO] [stdout] 34 | fn expand_peg_str<'s>(cx: &'s mut ExtCtxt, sp: source_map::Span, ident: ast::Ident, tts: Vec) -> Box { [INFO] [stdout] | ^^^ use of undeclared crate or module `ast` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `DummyResult` [INFO] [stdout] --> lib.rs:37:24 [INFO] [stdout] | [INFO] [stdout] 37 | None => return DummyResult::any(sp), [INFO] [stdout] | ^^^^^^^^^^^ use of undeclared type `DummyResult` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `source_map` [INFO] [stdout] --> lib.rs:43:49 [INFO] [stdout] | [INFO] [stdout] 43 | fn expand_peg_file<'s>(cx: &'s mut ExtCtxt, sp: source_map::Span, ident: ast::Ident, tts: Vec) -> Box { [INFO] [stdout] | ^^^^^^^^^^ use of undeclared crate or module `source_map` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ast` [INFO] [stdout] --> lib.rs:43:74 [INFO] [stdout] | [INFO] [stdout] 43 | fn expand_peg_file<'s>(cx: &'s mut ExtCtxt, sp: source_map::Span, ident: ast::Ident, tts: Vec) -> Box { [INFO] [stdout] | ^^^ use of undeclared crate or module `ast` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `DummyResult` [INFO] [stdout] --> lib.rs:46:24 [INFO] [stdout] | [INFO] [stdout] 46 | None => return DummyResult::any(sp), [INFO] [stdout] | ^^^^^^^^^^^ use of undeclared type `DummyResult` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `FileName` [INFO] [stdout] --> lib.rs:50:9 [INFO] [stdout] | [INFO] [stdout] 50 | FileName::Real(path) => path.parent().unwrap().join(&fname), [INFO] [stdout] | ^^^^^^^^ use of undeclared type `FileName` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `DummyResult` [INFO] [stdout] --> lib.rs:53:18 [INFO] [stdout] | [INFO] [stdout] 53 | return DummyResult::any(sp) [INFO] [stdout] | ^^^^^^^^^^^ use of undeclared type `DummyResult` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `DummyResult` [INFO] [stdout] --> lib.rs:60:16 [INFO] [stdout] | [INFO] [stdout] 60 | return DummyResult::any(sp); [INFO] [stdout] | ^^^^^^^^^^^ use of undeclared type `DummyResult` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `source_map` [INFO] [stdout] --> lib.rs:68:37 [INFO] [stdout] | [INFO] [stdout] 68 | fn expand_peg(cx: &mut ExtCtxt, sp: source_map::Span, ident: ast::Ident, source: &str) -> Box { [INFO] [stdout] | ^^^^^^^^^^ use of undeclared crate or module `source_map` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ast` [INFO] [stdout] --> lib.rs:68:62 [INFO] [stdout] | [INFO] [stdout] 68 | fn expand_peg(cx: &mut ExtCtxt, sp: source_map::Span, ident: ast::Ident, source: &str) -> Box { [INFO] [stdout] | ^^^ use of undeclared crate or module `ast` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `DummyResult` [INFO] [stdout] --> lib.rs:73:18 [INFO] [stdout] | [INFO] [stdout] 73 | return DummyResult::any(sp) [INFO] [stdout] | ^^^^^^^^^^^ use of undeclared type `DummyResult` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `parse` [INFO] [stdout] --> lib.rs:77:17 [INFO] [stdout] | [INFO] [stdout] 77 | let mut p = parse::new_parser_from_source_str(&cx.parse_sess, FileName::Custom("peg expansion".into()), code); [INFO] [stdout] | ^^^^^ use of undeclared crate or module `parse` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `FileName` [INFO] [stdout] --> lib.rs:77:67 [INFO] [stdout] | [INFO] [stdout] 77 | let mut p = parse::new_parser_from_source_str(&cx.parse_sess, FileName::Custom("peg expansion".into()), code); [INFO] [stdout] | ^^^^^^^^ use of undeclared type `FileName` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `MacEager` [INFO] [stdout] --> lib.rs:84:5 [INFO] [stdout] | [INFO] [stdout] 84 | MacEager::items(smallvec![cx.item_mod(sp, sp, ident, vec![], items)]) [INFO] [stdout] | ^^^^^^^^ use of undeclared type `MacEager` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `parse` [INFO] [stdout] --> lib.rs:90:22 [INFO] [stdout] | [INFO] [stdout] 90 | let mut parser = parse::new_parser_from_tts(cx.parse_sess(), tts.to_vec()); [INFO] [stdout] | ^^^^^ use of undeclared crate or module `parse` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ast` [INFO] [stdout] --> lib.rs:95:9 [INFO] [stdout] | [INFO] [stdout] 95 | ast::ExprKind::Lit(ref spanned) => { [INFO] [stdout] | ^^^ use of undeclared crate or module `ast` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ast` [INFO] [stdout] --> lib.rs:97:17 [INFO] [stdout] | [INFO] [stdout] 97 | ast::LitKind::Str(ref n, _) => { [INFO] [stdout] | ^^^ use of undeclared crate or module `ast` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `token` [INFO] [stdout] --> lib.rs:98:37 [INFO] [stdout] | [INFO] [stdout] 98 | if !parser.eat(&token::Eof) { [INFO] [stdout] | ^^^^^ use of undeclared crate or module `token` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `pprust` [INFO] [stdout] --> lib.rs:112:23 [INFO] [stdout] | [INFO] [stdout] 112 | pprust::expr_to_string(&*arg)); [INFO] [stdout] | ^^^^^^ use of undeclared crate or module `pprust` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `Registry` in this scope [INFO] [stdout] --> 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[E0412]: cannot find type `ExtCtxt` in this scope [INFO] [stdout] --> lib.rs:34:35 [INFO] [stdout] | [INFO] [stdout] 34 | fn expand_peg_str<'s>(cx: &'s mut ExtCtxt, sp: source_map::Span, ident: ast::Ident, tts: Vec) -> Box { [INFO] [stdout] | ^^^^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `TokenTree` in this scope [INFO] [stdout] --> lib.rs:34:94 [INFO] [stdout] | [INFO] [stdout] 34 | fn expand_peg_str<'s>(cx: &'s mut ExtCtxt, sp: source_map::Span, ident: ast::Ident, tts: Vec) -> Box { [INFO] [stdout] | - help: you might be missing a type parameter: `, TokenTree` ^^^^^^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0405]: cannot find trait `MacResult` in this scope [INFO] [stdout] --> lib.rs:34:113 [INFO] [stdout] | [INFO] [stdout] 34 | fn expand_peg_str<'s>(cx: &'s mut ExtCtxt, sp: source_map::Span, ident: ast::Ident, tts: Vec) -> Box { [INFO] [stdout] | - help: you might be missing a type parameter: `, MacResult` ^^^^^^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `ExtCtxt` in this scope [INFO] [stdout] --> lib.rs:43:36 [INFO] [stdout] | [INFO] [stdout] 43 | fn expand_peg_file<'s>(cx: &'s mut ExtCtxt, sp: source_map::Span, ident: ast::Ident, tts: Vec) -> Box { [INFO] [stdout] | ^^^^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `TokenTree` in this scope [INFO] [stdout] --> lib.rs:43:95 [INFO] [stdout] | [INFO] [stdout] 43 | fn expand_peg_file<'s>(cx: &'s mut ExtCtxt, sp: source_map::Span, ident: ast::Ident, tts: Vec) -> Box { [INFO] [stdout] | - help: you might be missing a type parameter: `, TokenTree` ^^^^^^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0405]: cannot find trait `MacResult` in this scope [INFO] [stdout] --> lib.rs:43:114 [INFO] [stdout] | [INFO] [stdout] 43 | fn expand_peg_file<'s>(cx: &'s mut ExtCtxt, sp: source_map::Span, ident: ast::Ident, tts: Vec) -> Box { [INFO] [stdout] | - help: you might be missing a type parameter: `, MacResult` ^^^^^^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `ExtCtxt` in this scope [INFO] [stdout] --> lib.rs:68:24 [INFO] [stdout] | [INFO] [stdout] 68 | fn expand_peg(cx: &mut ExtCtxt, sp: source_map::Span, ident: ast::Ident, source: &str) -> Box { [INFO] [stdout] | ^^^^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0405]: cannot find trait `MacResult` in this scope [INFO] [stdout] --> lib.rs:68:95 [INFO] [stdout] | [INFO] [stdout] 68 | fn expand_peg(cx: &mut ExtCtxt, sp: source_map::Span, ident: ast::Ident, source: &str) -> Box { [INFO] [stdout] | - help: you might be missing a type parameter: `` ^^^^^^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `ExtCtxt` in this scope [INFO] [stdout] --> lib.rs:87:23 [INFO] [stdout] | [INFO] [stdout] 87 | fn parse_arg(cx: &mut ExtCtxt, tts: &[TokenTree]) -> Option { [INFO] [stdout] | ^^^^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `TokenTree` in this scope [INFO] [stdout] --> lib.rs:87:39 [INFO] [stdout] | [INFO] [stdout] 87 | fn parse_arg(cx: &mut ExtCtxt, tts: &[TokenTree]) -> Option { [INFO] [stdout] | ^^^^^^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> lib.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(plugin_registrar, rustc_private)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> lib.rs:34:113 [INFO] [stdout] | [INFO] [stdout] 34 | fn expand_peg_str<'s>(cx: &'s mut ExtCtxt, sp: source_map::Span, ident: ast::Ident, tts: Vec) -> Box { [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] 34 - fn expand_peg_str<'s>(cx: &'s mut ExtCtxt, sp: source_map::Span, ident: ast::Ident, tts: Vec) -> Box { [INFO] [stdout] 34 + fn expand_peg_str<'s>(cx: &'s mut ExtCtxt, sp: source_map::Span, ident: ast::Ident, tts: Vec) -> Box { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 43 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0405, E0412, E0433, E0463, E0554, E0557. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0405`. [INFO] [stdout] [INFO] [stderr] error: could not compile `peg-syntax-ext` due to 44 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "efe2c19bcc573df4e8c060a05e26d76d7ac18e8a5bdce55086fa9835a6a4149a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "efe2c19bcc573df4e8c060a05e26d76d7ac18e8a5bdce55086fa9835a6a4149a", kill_on_drop: false }` [INFO] [stdout] efe2c19bcc573df4e8c060a05e26d76d7ac18e8a5bdce55086fa9835a6a4149a