[INFO] fetching crate fourcc 0.0.4...
[INFO] testing fourcc-0.0.4 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate fourcc 0.0.4 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate fourcc 0.0.4 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 fourcc 0.0.4
[INFO] finished tweaking crates.io crate fourcc 0.0.4
[INFO] tweaked toml for crates.io crate fourcc 0.0.4 written to /workspace/builds/worker-8/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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stdout] 6abab4d526c42e410f9e13626da183840774dfa174d5dabe7f2e0a771965cd90
[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" "6abab4d526c42e410f9e13626da183840774dfa174d5dabe7f2e0a771965cd90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6abab4d526c42e410f9e13626da183840774dfa174d5dabe7f2e0a771965cd90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6abab4d526c42e410f9e13626da183840774dfa174d5dabe7f2e0a771965cd90", kill_on_drop: false }`
[INFO] [stdout] 6abab4d526c42e410f9e13626da183840774dfa174d5dabe7f2e0a771965cd90
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3f4e0ecd9e373d91e030ed30c17ab34375c108285ada1f41965feff380569e86
[INFO] running `Command { std: "docker" "start" "-a" "3f4e0ecd9e373d91e030ed30c17ab34375c108285ada1f41965feff380569e86", kill_on_drop: false }`
[INFO] [stderr]    Compiling fourcc v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> src/lib.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 | #![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 `syntax`
[INFO] [stdout]   --> src/lib.rs:44:1
[INFO] [stdout]    |
[INFO] [stdout] 44 | extern crate syntax;
[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:45:1
[INFO] [stdout]    |
[INFO] [stdout] 45 | 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/beta-2022-04-10-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-beta_rt.tsan.a
[INFO] [stdout]            crate `rustc`: /opt/rustwide/rustup-home/toolchains/beta-2022-04-10-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-beta_rt.msan.a
[INFO] [stdout]            crate `rustc`: /opt/rustwide/rustup-home/toolchains/beta-2022-04-10-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-beta_rt.lsan.a
[INFO] [stdout]            crate `rustc`: /opt/rustwide/rustup-home/toolchains/beta-2022-04-10-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-beta_rt.asan.a
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `plugin_registrar` in this scope
[INFO] [stdout]   --> src/lib.rs:59:3
[INFO] [stdout]    |
[INFO] [stdout] 59 | #[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 `ast`
[INFO] [stdout]   --> src/lib.rs:64:61
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn expand_syntax_ext(cx: &mut ExtCtxt, sp: Span, tts: &[ast::TokenTree])
[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 `base`
[INFO] [stdout]   --> src/lib.rs:65:33
[INFO] [stdout]    |
[INFO] [stdout] 65 |                          -> Box<base::MacResult + 'static> {
[INFO] [stdout]    |                                 ^^^^ use of undeclared crate or module `base`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ast`
[INFO] [stdout]   --> src/lib.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |         ast::ExprLit(ref lit) => match lit.node {
[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]   --> src/lib.rs:85:13
[INFO] [stdout]    |
[INFO] [stdout] 85 |             ast::LitStr(ref s, _) => {
[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 `base`
[INFO] [stdout]   --> src/lib.rs:93:24
[INFO] [stdout]    |
[INFO] [stdout] 93 |                 return base::DummyResult::expr(sp)
[INFO] [stdout]    |                        ^^^^ use of undeclared crate or module `base`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `base`
[INFO] [stdout]   --> src/lib.rs:98:20
[INFO] [stdout]    |
[INFO] [stdout] 98 |             return base::DummyResult::expr(sp)
[INFO] [stdout]    |                    ^^^^ use of undeclared crate or module `base`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ast`
[INFO] [stdout]    --> src/lib.rs:117:29
[INFO] [stdout]     |
[INFO] [stdout] 117 |     let e = cx.expr_lit(sp, ast::LitInt(val as u64, ast::UnsignedIntLit(ast::TyU32)));
[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]    --> src/lib.rs:117:53
[INFO] [stdout]     |
[INFO] [stdout] 117 |     let e = cx.expr_lit(sp, ast::LitInt(val as u64, ast::UnsignedIntLit(ast::TyU32)));
[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]    --> src/lib.rs:117:73
[INFO] [stdout]     |
[INFO] [stdout] 117 |     let e = cx.expr_lit(sp, ast::LitInt(val as u64, ast::UnsignedIntLit(ast::TyU32)));
[INFO] [stdout]     |                                                                         ^^^ use of undeclared crate or module `ast`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `MacEager`
[INFO] [stdout]    --> src/lib.rs:118:5
[INFO] [stdout]     |
[INFO] [stdout] 118 |     MacEager::expr(e)
[INFO] [stdout]     |     ^^^^^^^^ use of undeclared type `MacEager`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ast`
[INFO] [stdout]    --> src/lib.rs:122:12
[INFO] [stdout]     |
[INFO] [stdout] 122 |     ident: ast::Ident,
[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]    --> src/lib.rs:127:21
[INFO] [stdout]     |
[INFO] [stdout] 127 |              tts: &[ast::TokenTree]) -> (P<ast::Expr>, Option<Ident>) {
[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]    --> src/lib.rs:127:44
[INFO] [stdout]     |
[INFO] [stdout] 127 |              tts: &[ast::TokenTree]) -> (P<ast::Expr>, Option<Ident>) {
[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]    --> src/lib.rs:130:28
[INFO] [stdout]     |
[INFO] [stdout] 130 |     let id = if p.token == 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 `token`
[INFO] [stdout]    --> src/lib.rs:133:19
[INFO] [stdout]     |
[INFO] [stdout] 133 |         p.expect(&token::Comma);
[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 `token`
[INFO] [stdout]    --> src/lib.rs:139:19
[INFO] [stdout]     |
[INFO] [stdout] 139 |     if p.token != 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 type `InternedString`
[INFO] [stdout]    --> src/lib.rs:146:39
[INFO] [stdout]     |
[INFO] [stdout] 146 |     let meta = cx.meta_name_value(sp, InternedString::new("target_endian"),
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^ use of undeclared type `InternedString`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ast`
[INFO] [stdout]    --> src/lib.rs:147:9
[INFO] [stdout]     |
[INFO] [stdout] 147 |         ast::LitStr(InternedString::new("little"), ast::CookedStr));
[INFO] [stdout]     |         ^^^ use of undeclared crate or module `ast`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `InternedString`
[INFO] [stdout]    --> src/lib.rs:147:21
[INFO] [stdout]     |
[INFO] [stdout] 147 |         ast::LitStr(InternedString::new("little"), ast::CookedStr));
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^ use of undeclared type `InternedString`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ast`
[INFO] [stdout]    --> src/lib.rs:147:52
[INFO] [stdout]     |
[INFO] [stdout] 147 |         ast::LitStr(InternedString::new("little"), ast::CookedStr));
[INFO] [stdout]     |                                                    ^^^ use of undeclared crate or module `ast`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Registry` in this scope
[INFO] [stdout]   --> src/lib.rs:60:35
[INFO] [stdout]    |
[INFO] [stdout] 60 | 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]   --> src/lib.rs:64:35
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn expand_syntax_ext(cx: &mut ExtCtxt, sp: Span, tts: &[ast::TokenTree])
[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:64:48
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn expand_syntax_ext(cx: &mut ExtCtxt, sp: Span, tts: &[ast::TokenTree])
[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:123:11
[INFO] [stdout]     |
[INFO] [stdout] 123 |     span: Span
[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:126:19
[INFO] [stdout]     |
[INFO] [stdout] 126 | fn parse_tts(cx: &ExtCtxt,
[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:127:42
[INFO] [stdout]     |
[INFO] [stdout] 127 |              tts: &[ast::TokenTree]) -> (P<ast::Expr>, Option<Ident>) {
[INFO] [stdout]     |                                          ^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `mk_sp` in this scope
[INFO] [stdout]    --> src/lib.rs:137:49
[INFO] [stdout]     |
[INFO] [stdout] 137 |         Some(Ident{ident: ident.unwrap(), span: mk_sp(lo, hi)})
[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:145:30
[INFO] [stdout]     |
[INFO] [stdout] 145 | fn target_endian_little(cx: &ExtCtxt, sp: Span) -> bool {
[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:145:43
[INFO] [stdout]     |
[INFO] [stdout] 145 | fn target_endian_little(cx: &ExtCtxt, sp: Span) -> bool {
[INFO] [stdout]     |                                           ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `contains` in this scope
[INFO] [stdout]    --> src/lib.rs:148:5
[INFO] [stdout]     |
[INFO] [stdout] 148 |     contains(&cx.cfg(), &*meta)
[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]   --> src/lib.rs:42:1
[INFO] [stdout]    |
[INFO] [stdout] 42 | #![feature(plugin_registrar, rustc_private)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:65:33
[INFO] [stdout]    |
[INFO] [stdout] 65 |                          -> Box<base::MacResult + 'static> {
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 65 -                          -> Box<base::MacResult + 'static> {
[INFO] [stdout] 65 +                          -> Box<dyn base::MacResult + 'static> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 35 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0425, E0433, E0463, E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fourcc` due to 36 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "3f4e0ecd9e373d91e030ed30c17ab34375c108285ada1f41965feff380569e86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f4e0ecd9e373d91e030ed30c17ab34375c108285ada1f41965feff380569e86", kill_on_drop: false }`
[INFO] [stdout] 3f4e0ecd9e373d91e030ed30c17ab34375c108285ada1f41965feff380569e86