[INFO] fetching crate fractran_macros 0.1.5...
[INFO] documenting fractran_macros-0.1.5 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate fractran_macros 0.1.5 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate fractran_macros 0.1.5 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 fractran_macros 0.1.5
[INFO] finished tweaking crates.io crate fractran_macros 0.1.5
[INFO] tweaked toml for crates.io crate fractran_macros 0.1.5 written to /workspace/builds/worker-8/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded slow_primes v0.1.14
[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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1495863624eacb7819f2dd4f32fd4b1aa6d4112a2871c1810d9e410857f510ae
[INFO] running `Command { std: "docker" "start" "-a" "1495863624eacb7819f2dd4f32fd4b1aa6d4112a2871c1810d9e410857f510ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1495863624eacb7819f2dd4f32fd4b1aa6d4112a2871c1810d9e410857f510ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1495863624eacb7819f2dd4f32fd4b1aa6d4112a2871c1810d9e410857f510ae", kill_on_drop: false }`
[INFO] [stdout] 1495863624eacb7819f2dd4f32fd4b1aa6d4112a2871c1810d9e410857f510ae
[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" "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] 2bcfa996dbb8bc8ff55ee1f79fa7f47c51292353063a8c5c301a131a7a3889ce
[INFO] running `Command { std: "docker" "start" "-a" "2bcfa996dbb8bc8ff55ee1f79fa7f47c51292353063a8c5c301a131a7a3889ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]     Checking num-complex v0.4.1
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking slow_primes v0.1.14
[INFO] [stderr]  Documenting fractran_macros v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(quote, plugin_registrar, rustc_private, core)]
[INFO] [stdout]   |            ^^^^^ feature has been removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(quote, plugin_registrar, rustc_private, core)]
[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] warning: lint `unsigned_negation` has been removed: replaced by negate_unsigned feature gate
[INFO] [stdout]    --> src/lib.rs:226:13
[INFO] [stdout]     |
[INFO] [stdout] 226 |     #[allow(unsigned_negation)]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(renamed_and_removed_lints)]` on by default
[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[E0462]: found staticlib `rustc` instead of rlib or dylib
[INFO] [stdout]  --> src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | 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/1.61.0-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/1.61.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-stable_rt.lsan.a
[INFO] [stdout]           crate `rustc`: /opt/rustwide/rustup-home/toolchains/1.61.0-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/1.61.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-stable_rt.tsan.a
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `plugin_registrar` in this scope
[INFO] [stdout]   --> src/lib.rs:21:3
[INFO] [stdout]    |
[INFO] [stdout] 21 | #[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:37:20
[INFO] [stdout]    |
[INFO] [stdout] 37 |     MacEager::expr(quote_expr!(cx, {
[INFO] [stdout]    |                    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `quote_expr` in this scope
[INFO] [stdout]    --> src/lib.rs:175:16
[INFO] [stdout]     |
[INFO] [stdout] 175 |     let regs = quote_expr!(cx, self._regs);
[INFO] [stdout]     |                ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `quote_expr` in this scope
[INFO] [stdout]    --> src/lib.rs:181:22
[INFO] [stdout]     |
[INFO] [stdout] 181 |     let mut states = quote_expr!(cx, { return None });
[INFO] [stdout]     |                      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `quote_expr` in this scope
[INFO] [stdout]    --> src/lib.rs:202:9
[INFO] [stdout]     |
[INFO] [stdout] 202 |         quote_expr!(&*self.cx, $regs[$reg] >= $thresh )
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `quote_expr` in this scope
[INFO] [stdout]    --> src/lib.rs:207:9
[INFO] [stdout]     |
[INFO] [stdout] 207 |         quote_expr!(&*self.cx, $regs[$reg] += $amt)
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `quote_expr` in this scope
[INFO] [stdout]    --> src/lib.rs:212:9
[INFO] [stdout]     |
[INFO] [stdout] 212 |         quote_expr!(&*self.cx, $regs[$reg] -= $amt)
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `codemap`
[INFO] [stdout]   --> src/lib.rs:26:35
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn fractran(cx: &mut ExtCtxt, sp: codemap::Span, tts: &[ast::TokenTree]) -> Box<MacResult+'static> {
[INFO] [stdout]    |                                   ^^^^^^^ use of undeclared crate or module `codemap`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ast`
[INFO] [stdout]   --> src/lib.rs:26:57
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn fractran(cx: &mut ExtCtxt, sp: codemap::Span, tts: &[ast::TokenTree]) -> Box<MacResult+'static> {
[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 `ptr`
[INFO] [stdout]   --> src/lib.rs:78:45
[INFO] [stdout]    |
[INFO] [stdout] 78 | fn extract_exprs(cx: &mut ExtCtxt, exprs: &[ptr::P<ast::Expr>]) -> Option<Vec<Fract<Vec<usize>>>> {
[INFO] [stdout]    |                                             ^^^ use of undeclared crate or module `ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ast`
[INFO] [stdout]   --> src/lib.rs:78:52
[INFO] [stdout]    |
[INFO] [stdout] 78 | fn extract_exprs(cx: &mut ExtCtxt, exprs: &[ptr::P<ast::Expr>]) -> Option<Vec<Fract<Vec<usize>>>> {
[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:82:42
[INFO] [stdout]    |
[INFO] [stdout] 82 | fn extract_expr(cx: &mut ExtCtxt, expr: &ast::Expr) -> Option<Fract<Vec<usize>>> {
[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 `codemap`
[INFO] [stdout]    --> src/lib.rs:167:39
[INFO] [stdout]     |
[INFO] [stdout] 167 | fn construct_states(cx: &ExtCtxt, sp: codemap::Span,
[INFO] [stdout]     |                                       ^^^^^^^ use of undeclared crate or module `codemap`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ptr`
[INFO] [stdout]    --> src/lib.rs:169:64
[INFO] [stdout]     |
[INFO] [stdout] 169 | ...                   Fract<Vec<usize>>)]) -> (usize, ptr::P<ast::Expr>) {
[INFO] [stdout]     |                                                       ^^^ use of undeclared crate or module `ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ast`
[INFO] [stdout]    --> src/lib.rs:169:71
[INFO] [stdout]     |
[INFO] [stdout] 169 | ...                   Fract<Vec<usize>>)]) -> (usize, ptr::P<ast::Expr>) {
[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 `codemap`
[INFO] [stdout]    --> src/lib.rs:194:9
[INFO] [stdout]     |
[INFO] [stdout] 194 |     sp: codemap::Span,
[INFO] [stdout]     |         ^^^^^^^ use of undeclared crate or module `codemap`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ptr`
[INFO] [stdout]    --> src/lib.rs:195:11
[INFO] [stdout]     |
[INFO] [stdout] 195 |     regs: ptr::P<ast::Expr>,
[INFO] [stdout]     |           ^^^ use of undeclared crate or module `ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ast`
[INFO] [stdout]    --> src/lib.rs:195:18
[INFO] [stdout]     |
[INFO] [stdout] 195 |     regs: ptr::P<ast::Expr>,
[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 `ptr`
[INFO] [stdout]    --> src/lib.rs:199:55
[INFO] [stdout]     |
[INFO] [stdout] 199 |     fn check_reg(&self, reg: usize, thresh: usize) -> ptr::P<ast::Expr> {
[INFO] [stdout]     |                                                       ^^^ use of undeclared crate or module `ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ast`
[INFO] [stdout]    --> src/lib.rs:199:62
[INFO] [stdout]     |
[INFO] [stdout] 199 |     fn check_reg(&self, reg: usize, thresh: usize) -> ptr::P<ast::Expr> {
[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 `ptr`
[INFO] [stdout]    --> src/lib.rs:204:49
[INFO] [stdout]     |
[INFO] [stdout] 204 |     fn up_reg(&self, reg: usize, amt: usize) -> ptr::P<ast::Expr> {
[INFO] [stdout]     |                                                 ^^^ use of undeclared crate or module `ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ast`
[INFO] [stdout]    --> src/lib.rs:204:56
[INFO] [stdout]     |
[INFO] [stdout] 204 |     fn up_reg(&self, reg: usize, amt: usize) -> ptr::P<ast::Expr> {
[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 `ptr`
[INFO] [stdout]    --> src/lib.rs:209:51
[INFO] [stdout]     |
[INFO] [stdout] 209 |     fn down_reg(&self, reg: usize, amt: usize) -> ptr::P<ast::Expr> {
[INFO] [stdout]     |                                                   ^^^ use of undeclared crate or module `ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ast`
[INFO] [stdout]    --> src/lib.rs:209:58
[INFO] [stdout]     |
[INFO] [stdout] 209 |     fn down_reg(&self, reg: usize, amt: usize) -> ptr::P<ast::Expr> {
[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 `ptr`
[INFO] [stdout]    --> src/lib.rs:215:47
[INFO] [stdout]     |
[INFO] [stdout] 215 |     fn check_regs(&self, values: &[usize]) -> ptr::P<ast::Expr> {
[INFO] [stdout]     |                                               ^^^ use of undeclared crate or module `ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ast`
[INFO] [stdout]    --> src/lib.rs:215:54
[INFO] [stdout]     |
[INFO] [stdout] 215 |     fn check_regs(&self, values: &[usize]) -> ptr::P<ast::Expr> {
[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 `ptr`
[INFO] [stdout]    --> src/lib.rs:227:68
[INFO] [stdout]     |
[INFO] [stdout] 227 |     fn step_regs(&self, increase: &[usize], decrease: &[usize]) -> ptr::P<ast::Block> {
[INFO] [stdout]     |                                                                    ^^^ use of undeclared crate or module `ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ast`
[INFO] [stdout]    --> src/lib.rs:227:75
[INFO] [stdout]     |
[INFO] [stdout] 227 |     fn step_regs(&self, increase: &[usize], decrease: &[usize]) -> ptr::P<ast::Block> {
[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:23:41
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn plugin_registrar(registrar: &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:26:22
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn fractran(cx: &mut ExtCtxt, sp: codemap::Span, tts: &[ast::TokenTree]) -> Box<MacResult+'static> {
[INFO] [stdout]    |                      ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `MacResult` in this scope
[INFO] [stdout]   --> src/lib.rs:26:81
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn fractran(cx: &mut ExtCtxt, sp: codemap::Span, tts: &[ast::TokenTree]) -> Box<MacResult+'static> {
[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]   --> src/lib.rs:78:27
[INFO] [stdout]    |
[INFO] [stdout] 78 | fn extract_exprs(cx: &mut ExtCtxt, exprs: &[ptr::P<ast::Expr>]) -> Option<Vec<Fract<Vec<usize>>>> {
[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:82:26
[INFO] [stdout]    |
[INFO] [stdout] 82 | fn extract_expr(cx: &mut ExtCtxt, expr: &ast::Expr) -> Option<Fract<Vec<usize>>> {
[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:167:26
[INFO] [stdout]     |
[INFO] [stdout] 167 | fn construct_states(cx: &ExtCtxt, sp: codemap::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:193:13
[INFO] [stdout]     |
[INFO] [stdout] 193 |     cx: &'a ExtCtxt<'b>,
[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:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(quote, plugin_registrar, rustc_private, core)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 41 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 document `fractran_macros`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type dylib --crate-name fractran_macros src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=192971d0b287eabf -L dependency=/opt/rustwide/target/debug/deps --extern num=/opt/rustwide/target/debug/deps/libnum-d06e52efc6657258.rmeta --extern slow_primes=/opt/rustwide/target/debug/deps/libslow_primes-33bb512fae503bfc.rmeta --cap-lints=warn --crate-version 0.1.5` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "2bcfa996dbb8bc8ff55ee1f79fa7f47c51292353063a8c5c301a131a7a3889ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bcfa996dbb8bc8ff55ee1f79fa7f47c51292353063a8c5c301a131a7a3889ce", kill_on_drop: false }`
[INFO] [stdout] 2bcfa996dbb8bc8ff55ee1f79fa7f47c51292353063a8c5c301a131a7a3889ce