[INFO] fetching crate overload-strings 0.1.1...
[INFO] documenting overload-strings-0.1.1 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate overload-strings 0.1.1 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate overload-strings 0.1.1 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate overload-strings 0.1.1
[INFO] finished tweaking crates.io crate overload-strings 0.1.1
[INFO] tweaked toml for crates.io crate overload-strings 0.1.1 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5a174b1dfb4da9592fd4f68f38e4661df4234925592a7964dbdd1b932f8a272b
[INFO] running `Command { std: "docker" "start" "-a" "5a174b1dfb4da9592fd4f68f38e4661df4234925592a7964dbdd1b932f8a272b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a174b1dfb4da9592fd4f68f38e4661df4234925592a7964dbdd1b932f8a272b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a174b1dfb4da9592fd4f68f38e4661df4234925592a7964dbdd1b932f8a272b", kill_on_drop: false }`
[INFO] [stdout] 5a174b1dfb4da9592fd4f68f38e4661df4234925592a7964dbdd1b932f8a272b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "RUSTDOCFLAGS=--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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c2fd0a55d9c6b22aa59c14c673d1b5ff2ab2a6b13bbbe8c6b3f2724b1260f70
[INFO] running `Command { std: "docker" "start" "-a" "9c2fd0a55d9c6b22aa59c14c673d1b5ff2ab2a6b13bbbe8c6b3f2724b1260f70", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Documenting overload-strings 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, quote, 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[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:1:30
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(plugin_registrar, quote, rustc_private)]
[INFO] [stdout]   |                              ^^^^^ feature has been removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `rustc_plugin`
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | 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]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | extern crate syntax;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `plugin_registrar` in this scope
[INFO] [stdout]   --> src/lib.rs:71:3
[INFO] [stdout]    |
[INFO] [stdout] 71 | #[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 `quote_expr` in this scope
[INFO] [stdout]   --> src/lib.rs:47:24
[INFO] [stdout]    |
[INFO] [stdout] 47 |                 return quote_expr!(self.0, $e.into());
[INFO] [stdout]    |                        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `ExtCtxt` in this scope
[INFO] [stdout]   --> src/lib.rs:16:39
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct StrFolder<'a, 'cx: 'a>(&'a mut ExtCtxt<'cx>, Option<Span>);
[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:16:60
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct StrFolder<'a, 'cx: 'a>(&'a mut ExtCtxt<'cx>, Option<Span>);
[INFO] [stdout]    |                             -                              ^^^^ not found in this scope
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             help: you might be missing a type parameter: `, Span`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Folder` in this scope
[INFO] [stdout]   --> src/lib.rs:18:15
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl<'a, 'cx> Folder for StrFolder<'a, 'cx> {
[INFO] [stdout]    |               ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Item` in this scope
[INFO] [stdout]   --> src/lib.rs:19:39
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn fold_item_simple(&mut self, i: Item) -> Item {
[INFO] [stdout]    |                                       ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Item` in this scope
[INFO] [stdout]   --> src/lib.rs:19:48
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn fold_item_simple(&mut self, i: Item) -> Item {
[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:44:32
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn fold_expr(&mut self, e: P<Expr>) -> P<Expr> {
[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:44:34
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl<'a, 'cx> Folder for StrFolder<'a, 'cx> {
[INFO] [stdout]    |             - help: you might be missing a type parameter: `, Expr`
[INFO] [stdout] ...
[INFO] [stdout] 44 |     fn fold_expr(&mut self, e: P<Expr>) -> P<Expr> {
[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:44:44
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn fold_expr(&mut self, e: P<Expr>) -> P<Expr> {
[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:44:46
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl<'a, 'cx> Folder for StrFolder<'a, 'cx> {
[INFO] [stdout]    |             - help: you might be missing a type parameter: `, Expr`
[INFO] [stdout] ...
[INFO] [stdout] 44 |     fn fold_expr(&mut self, e: P<Expr>) -> P<Expr> {
[INFO] [stdout]    |                                              ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Mac` in this scope
[INFO] [stdout]   --> src/lib.rs:53:33
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn fold_mac(&mut self, mac: Mac) -> Mac {
[INFO] [stdout]    |                                 ^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Mac` in this scope
[INFO] [stdout]   --> src/lib.rs:53:41
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn fold_mac(&mut self, mac: Mac) -> Mac {
[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:59:33
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn insert_str_into(cx: &mut ExtCtxt, _span: Span, _mi: &MetaItem,
[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:59:49
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn insert_str_into(cx: &mut ExtCtxt, _span: Span, _mi: &MetaItem,
[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:59:61
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn insert_str_into(cx: &mut ExtCtxt, _span: Span, _mi: &MetaItem,
[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:60:27
[INFO] [stdout]    |
[INFO] [stdout] 60 |                        a: Annotatable) -> 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:60:43
[INFO] [stdout]    |
[INFO] [stdout] 60 |                        a: Annotatable) -> Annotatable {
[INFO] [stdout]    |                                           ^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Registry` in this scope
[INFO] [stdout]   --> src/lib.rs:72:35
[INFO] [stdout]    |
[INFO] [stdout] 72 | pub fn plugin_registrar(reg: &mut Registry) {
[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, quote, rustc_private)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 25 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0412, E0463, E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `overload-strings`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type dylib --crate-name overload_strings src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=6bbe4c7b645a3bed -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.1.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "9c2fd0a55d9c6b22aa59c14c673d1b5ff2ab2a6b13bbbe8c6b3f2724b1260f70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c2fd0a55d9c6b22aa59c14c673d1b5ff2ab2a6b13bbbe8c6b3f2724b1260f70", kill_on_drop: false }`
[INFO] [stdout] 9c2fd0a55d9c6b22aa59c14c673d1b5ff2ab2a6b13bbbe8c6b3f2724b1260f70