[INFO] fetching crate syntex_syntax 0.59.1...
[INFO] documenting syntex_syntax-0.59.1 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate syntex_syntax 0.59.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate syntex_syntax 0.59.1 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate syntex_syntax 0.59.1
[INFO] finished tweaking crates.io crate syntex_syntax 0.59.1
[INFO] tweaked toml for crates.io crate syntex_syntax 0.59.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+1.69.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded extprim v1.7.1
[INFO] [stderr]   Downloaded syntex_pos v0.59.1
[INFO] [stderr]   Downloaded syntex_errors v0.59.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b823d5cf447ac210a972bb3d2c79655f01275c665a7b72b3f6841a2d34543b5a
[INFO] running `Command { std: "docker" "start" "-a" "b823d5cf447ac210a972bb3d2c79655f01275c665a7b72b3f6841a2d34543b5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b823d5cf447ac210a972bb3d2c79655f01275c665a7b72b3f6841a2d34543b5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b823d5cf447ac210a972bb3d2c79655f01275c665a7b72b3f6841a2d34543b5a", kill_on_drop: false }`
[INFO] [stdout] b823d5cf447ac210a972bb3d2c79655f01275c665a7b72b3f6841a2d34543b5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4062bc24882c6abd6103fb032fcf20cdca23f1f15fcf115db42882fd447c2a13
[INFO] running `Command { std: "docker" "start" "-a" "4062bc24882c6abd6103fb032fcf20cdca23f1f15fcf115db42882fd447c2a13", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]     Checking term v0.4.6
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]    Compiling syn v2.0.15
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]    Compiling extprim v1.7.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]    Compiling serde_derive v1.0.160
[INFO] [stderr]     Checking syntex_pos v0.59.1
[INFO] [stderr]     Checking serde_json v1.0.96
[INFO] [stderr]     Checking syntex_errors v0.59.1
[INFO] [stderr]  Documenting syntex_syntax v0.59.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/parse/lexer/mod.rs:322:9
[INFO] [stdout]     |
[INFO] [stdout] 322 |         (pos - self.filemap.start_pos)
[INFO] [stdout]     |         ^                            ^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:21:9
[INFO] [stdout]     |
[INFO] [stdout] 21  | #![deny(warnings)]
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     = note: `#[warn(unused_parens)]` implied by `#[warn(warnings)]`
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 322 -         (pos - self.filemap.start_pos)
[INFO] [stdout] 322 +         pos - self.filemap.start_pos
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/parse/lexer/mod.rs:733:20
[INFO] [stdout]     |
[INFO] [stdout] 733 |                 '0'...'9' | '_' | '.' | 'e' | 'E' => {
[INFO] [stdout]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[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]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/print/pprust.rs:676:17
[INFO] [stdout]     |
[INFO] [stdout] 676 |                 (format!("\"{}\"", parse::escape_default(st)))
[INFO] [stdout]     |                 ^                                            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 676 -                 (format!("\"{}\"", parse::escape_default(st)))
[INFO] [stdout] 676 +                 format!("\"{}\"", parse::escape_default(st))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/print/pprust.rs:679:17
[INFO] [stdout]     |
[INFO] [stdout] 679 |                 (format!("r{delim}\"{string}\"{delim}",
[INFO] [stdout]     |                 ^
[INFO] [stdout] 680 |                          delim=repeat("#", n),
[INFO] [stdout] 681 |                          string=st))
[INFO] [stdout]     |                                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 679 ~                 format!("r{delim}\"{string}\"{delim}",
[INFO] [stdout] 680 |                          delim=repeat("#", n),
[INFO] [stdout] 681 ~                          string=st)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0275]: overflow evaluating the requirement `std::boxed::Box<ast::Local>: std::panic::RefUnwindSafe`
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]` attribute to your crate (`syntex_syntax`)
[INFO] [stdout] note: required because it appears within the type `P<Local>`
[INFO] [stdout]     --> src/ptr.rs:51:12
[INFO] [stdout]      |
[INFO] [stdout] 51   | pub struct P<T: ?Sized> {
[INFO] [stdout]      |            ^
[INFO] [stdout] note: required because it appears within the type `StmtKind`
[INFO] [stdout]     --> src/ast.rs:722:10
[INFO] [stdout]      |
[INFO] [stdout] 722  | pub enum StmtKind {
[INFO] [stdout]      |          ^^^^^^^^
[INFO] [stdout] note: required because it appears within the type `Stmt`
[INFO] [stdout]     --> src/ast.rs:695:12
[INFO] [stdout]      |
[INFO] [stdout] 695  | pub struct Stmt {
[INFO] [stdout]      |            ^^^^
[INFO] [stdout]      = note: required because it appears within the type `*const Stmt`
[INFO] [stdout]      = note: required because it appears within the type `NonNull<Stmt>`
[INFO] [stdout]      = note: required because it appears within the type `Unique<Stmt>`
[INFO] [stdout]      = note: required because it appears within the type `RawVec<Stmt>`
[INFO] [stdout]      = note: required because it appears within the type `Vec<Stmt>`
[INFO] [stdout] note: required because it appears within the type `Block`
[INFO] [stdout]     --> src/ast.rs:434:12
[INFO] [stdout]      |
[INFO] [stdout] 434  | pub struct Block {
[INFO] [stdout]      |            ^^^^^
[INFO] [stdout]      = note: required because it appears within the type `*const Block`
[INFO] [stdout]      = note: required because it appears within the type `NonNull<Block>`
[INFO] [stdout]      = note: required because it appears within the type `Unique<Block>`
[INFO] [stdout]      = note: required because it appears within the type `Box<Block>`
[INFO] [stdout] note: required because it appears within the type `P<Block>`
[INFO] [stdout]     --> src/ptr.rs:51:12
[INFO] [stdout]      |
[INFO] [stdout] 51   | pub struct P<T: ?Sized> {
[INFO] [stdout]      |            ^
[INFO] [stdout] note: required because it appears within the type `ExprKind`
[INFO] [stdout]     --> src/ast.rs:830:10
[INFO] [stdout]      |
[INFO] [stdout] 830  | pub enum ExprKind {
[INFO] [stdout]      |          ^^^^^^^^
[INFO] [stdout] note: required because it appears within the type `Expr`
[INFO] [stdout]     --> src/ast.rs:807:12
[INFO] [stdout]      |
[INFO] [stdout] 807  | pub struct Expr {
[INFO] [stdout]      |            ^^^^
[INFO] [stdout]      = note: required because it appears within the type `*const Expr`
[INFO] [stdout]      = note: required because it appears within the type `NonNull<Expr>`
[INFO] [stdout]      = note: required because it appears within the type `Unique<Expr>`
[INFO] [stdout]      = note: required because it appears within the type `Box<Expr>`
[INFO] [stdout] note: required because it appears within the type `P<Expr>`
[INFO] [stdout]     --> src/ptr.rs:51:12
[INFO] [stdout]      |
[INFO] [stdout] 51   | pub struct P<T: ?Sized> {
[INFO] [stdout]      |            ^
[INFO] [stdout] note: required because it appears within the type `TyKind`
[INFO] [stdout]     --> src/ast.rs:1347:10
[INFO] [stdout]      |
[INFO] [stdout] 1347 | pub enum TyKind {
[INFO] [stdout]      |          ^^^^^^
[INFO] [stdout] note: required because it appears within the type `Ty`
[INFO] [stdout]     --> src/ast.rs:1325:12
[INFO] [stdout]      |
[INFO] [stdout] 1325 | pub struct Ty {
[INFO] [stdout]      |            ^^
[INFO] [stdout]      = note: required because it appears within the type `*const Ty`
[INFO] [stdout]      = note: required because it appears within the type `NonNull<Ty>`
[INFO] [stdout]      = note: required because it appears within the type `Unique<Ty>`
[INFO] [stdout]      = note: required because it appears within the type `Box<Ty>`
[INFO] [stdout] note: required because it appears within the type `P<Ty>`
[INFO] [stdout]     --> src/ptr.rs:51:12
[INFO] [stdout]      |
[INFO] [stdout] 51   | pub struct P<T: ?Sized> {
[INFO] [stdout]      |            ^
[INFO] [stdout]      = note: required because it appears within the type `*const P<Ty>`
[INFO] [stdout]      = note: required because it appears within the type `NonNull<P<Ty>>`
[INFO] [stdout]      = note: required because it appears within the type `Unique<P<Ty>>`
[INFO] [stdout]      = note: required because it appears within the type `RawVec<P<Ty>>`
[INFO] [stdout]      = note: required because it appears within the type `Vec<P<Ty>>`
[INFO] [stdout] note: required because it appears within the type `AngleBracketedParameterData`
[INFO] [stdout]     --> src/ast.rs:161:12
[INFO] [stdout]      |
[INFO] [stdout] 161  | pub struct AngleBracketedParameterData {
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: required because it appears within the type `PathParameters`
[INFO] [stdout]     --> src/ast.rs:152:10
[INFO] [stdout]      |
[INFO] [stdout] 152  | pub enum PathParameters {
[INFO] [stdout]      |          ^^^^^^^^^^^^^^
[INFO] [stdout]      = note: required because it appears within the type `*const PathParameters`
[INFO] [stdout]      = note: required because it appears within the type `NonNull<PathParameters>`
[INFO] [stdout]      = note: required because it appears within the type `Unique<PathParameters>`
[INFO] [stdout]      = note: required because it appears within the type `Box<PathParameters>`
[INFO] [stdout] note: required because it appears within the type `P<PathParameters>`
[INFO] [stdout]     --> src/ptr.rs:51:12
[INFO] [stdout]      |
[INFO] [stdout] 51   | pub struct P<T: ?Sized> {
[INFO] [stdout]      |            ^
[INFO] [stdout]      = note: required because it appears within the type `Option<P<PathParameters>>`
[INFO] [stdout] note: required because it appears within the type `PathSegment`
[INFO] [stdout]     --> src/ast.rs:119:12
[INFO] [stdout]      |
[INFO] [stdout] 119  | pub struct PathSegment {
[INFO] [stdout]      |            ^^^^^^^^^^^
[INFO] [stdout]      = note: required because it appears within the type `*const PathSegment`
[INFO] [stdout]      = note: required because it appears within the type `NonNull<PathSegment>`
[INFO] [stdout]      = note: required because it appears within the type `Unique<PathSegment>`
[INFO] [stdout]      = note: required because it appears within the type `RawVec<PathSegment>`
[INFO] [stdout]      = note: required because it appears within the type `Vec<PathSegment>`
[INFO] [stdout] note: required because it appears within the type `Path`
[INFO] [stdout]     --> src/ast.rs:66:12
[INFO] [stdout]      |
[INFO] [stdout] 66   | pub struct Path {
[INFO] [stdout]      |            ^^^^
[INFO] [stdout] note: required because it appears within the type `Attribute`
[INFO] [stdout]     --> src/ast.rs:1688:12
[INFO] [stdout]      |
[INFO] [stdout] 1688 | pub struct Attribute {
[INFO] [stdout]      |            ^^^^^^^^^
[INFO] [stdout]      = note: required because it appears within the type `*const Attribute`
[INFO] [stdout]      = note: required because it appears within the type `NonNull<Attribute>`
[INFO] [stdout]      = note: required because it appears within the type `Unique<Attribute>`
[INFO] [stdout]      = note: required because it appears within the type `RawVec<Attribute>`
[INFO] [stdout]      = note: required because it appears within the type `Vec<Attribute>`
[INFO] [stdout] note: required because it appears within the type `Item`
[INFO] [stdout]     --> src/ast.rs:1805:12
[INFO] [stdout]      |
[INFO] [stdout] 1805 | pub struct Item {
[INFO] [stdout]      |            ^^^^
[INFO] [stdout]      = note: required because it appears within the type `*const Item`
[INFO] [stdout]      = note: required because it appears within the type `NonNull<Item>`
[INFO] [stdout]      = note: required because it appears within the type `Unique<Item>`
[INFO] [stdout]      = note: required because it appears within the type `Box<Item>`
[INFO] [stdout] note: required because it appears within the type `P<Item>`
[INFO] [stdout]     --> src/ptr.rs:51:12
[INFO] [stdout]      |
[INFO] [stdout] 51   | pub struct P<T: ?Sized> {
[INFO] [stdout]      |            ^
[INFO] [stdout] note: required because it appears within the type `Nonterminal`
[INFO] [stdout]     --> src/parse/token.rs:359:10
[INFO] [stdout]      |
[INFO] [stdout] 359  | pub enum Nonterminal {
[INFO] [stdout]      |          ^^^^^^^^^^^
[INFO] [stdout]      = note: required for `std::rc::Rc<parse::token::Nonterminal>` to implement `std::panic::RefUnwindSafe`
[INFO] [stdout] note: required because it appears within the type `Token`
[INFO] [stdout]     --> src/parse/token.rs:126:10
[INFO] [stdout]      |
[INFO] [stdout] 126  | pub enum Token {
[INFO] [stdout]      |          ^^^^^
[INFO] [stdout] note: required because it appears within the type `TokenTree`
[INFO] [stdout]     --> src/tokenstream.rs:97:10
[INFO] [stdout]      |
[INFO] [stdout] 97   | pub enum TokenTree {
[INFO] [stdout]      |          ^^^^^^^^^
[INFO] [stdout] note: required because it appears within the type `TokenStreamKind`
[INFO] [stdout]     --> src/tokenstream.rs:156:6
[INFO] [stdout]      |
[INFO] [stdout] 156  | enum TokenStreamKind {
[INFO] [stdout]      |      ^^^^^^^^^^^^^^^
[INFO] [stdout] note: required because it appears within the type `TokenStream`
[INFO] [stdout]     --> src/tokenstream.rs:151:12
[INFO] [stdout]      |
[INFO] [stdout] 151  | pub struct TokenStream {
[INFO] [stdout]      |            ^^^^^^^^^^^
[INFO] [stdout]      = note: required because it appears within the type `[TokenStream]`
[INFO] [stdout]      = note: required because it appears within the type `*const [TokenStream]`
[INFO] [stdout]      = note: required because it appears within the type `NonNull<[TokenStream]>`
[INFO] [stdout]      = note: required because it appears within the type `Unique<[TokenStream]>`
[INFO] [stdout]      = note: required because it appears within the type `Box<[TokenStream]>`
[INFO] [stdout]      = note: required for `std::rc::Rc<std::boxed::Box<[tokenstream::TokenStream]>>` to implement `std::panic::UnwindSafe`
[INFO] [stdout] note: required because it appears within the type `RcSlice<TokenStream>`
[INFO] [stdout]     --> src/util/rc_slice.rs:19:12
[INFO] [stdout]      |
[INFO] [stdout] 19   | pub struct RcSlice<T> {
[INFO] [stdout]      |            ^^^^^^^
[INFO] [stdout]      = note: required because it appears within the type `Option<RcSlice<TokenStream>>`
[INFO] [stdout] note: required because it appears within the type `ThinTokenStream`
[INFO] [stdout]     --> src/tokenstream.rs:344:12
[INFO] [stdout]      |
[INFO] [stdout] 344  | pub struct ThinTokenStream(Option<RcSlice<TokenStream>>);
[INFO] [stdout]      |            ^^^^^^^^^^^^^^^
[INFO] [stdout] note: required because it appears within the type `Mac_`
[INFO] [stdout]     --> src/ast.rs:1001:12
[INFO] [stdout]      |
[INFO] [stdout] 1001 | pub struct Mac_ {
[INFO] [stdout]      |            ^^^^
[INFO] [stdout] note: required because it appears within the type `Spanned<Mac_>`
[INFO] [stdout]     --> src/codemap.rs:47:12
[INFO] [stdout]      |
[INFO] [stdout] 47   | pub struct Spanned<T> {
[INFO] [stdout]      |            ^^^^^^^
[INFO] [stdout] note: required because it appears within the type `PatKind`
[INFO] [stdout]     --> src/ast.rs:520:10
[INFO] [stdout]      |
[INFO] [stdout] 520  | pub enum PatKind {
[INFO] [stdout]      |          ^^^^^^^
[INFO] [stdout] note: required because it appears within the type `Pat`
[INFO] [stdout]     --> src/ast.rs:444:12
[INFO] [stdout]      |
[INFO] [stdout] 444  | pub struct Pat {
[INFO] [stdout]      |            ^^^
[INFO] [stdout]      = note: required for `std::ptr::Unique<ast::Pat>` to implement `std::panic::UnwindSafe`
[INFO] [stdout]      = note: required because it appears within the type `Box<Pat>`
[INFO] [stdout] note: required because it appears within the type `P<Pat>`
[INFO] [stdout]     --> src/ptr.rs:51:12
[INFO] [stdout]      |
[INFO] [stdout] 51   | pub struct P<T: ?Sized> {
[INFO] [stdout]      |            ^
[INFO] [stdout] note: required because it appears within the type `Local`
[INFO] [stdout]     --> src/ast.rs:754:12
[INFO] [stdout]      |
[INFO] [stdout] 754  | pub struct Local {
[INFO] [stdout]      |            ^^^^^
[INFO] [stdout]      = note: required for `std::ptr::Unique<ast::Local>` to implement `std::panic::UnwindSafe`
[INFO] [stdout]      = note: required because it appears within the type `Box<Local>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0275`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `syntex_syntax`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name syntex_syntax src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=9d94bfc29df0dc26 -L dependency=/opt/rustwide/target/debug/deps --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-babd28567f02fecf.rmeta --extern extprim=/opt/rustwide/target/debug/deps/libextprim-04bdc4407d1ae530.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-376fe3c7a6a66072.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-17bf0d59bb7456b6.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-1e3f81b92e3ccf1e.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-22da2bd8d2d61935.rmeta --extern syntex_errors=/opt/rustwide/target/debug/deps/libsyntex_errors-dc55c203ccd907ea.rmeta --extern syntex_pos=/opt/rustwide/target/debug/deps/libsyntex_pos-6a3bf38cdbe3f547.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-b2269a5a1425b1cb.rmeta --cap-lints=warn --crate-version 0.59.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "4062bc24882c6abd6103fb032fcf20cdca23f1f15fcf115db42882fd447c2a13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4062bc24882c6abd6103fb032fcf20cdca23f1f15fcf115db42882fd447c2a13", kill_on_drop: false }`
[INFO] [stdout] 4062bc24882c6abd6103fb032fcf20cdca23f1f15fcf115db42882fd447c2a13
