[INFO] fetching crate exonum_flamer 0.1.6...
[INFO] documenting exonum_flamer-0.1.6 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate exonum_flamer 0.1.6 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate exonum_flamer 0.1.6 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 exonum_flamer 0.1.6
[INFO] finished tweaking crates.io crate exonum_flamer 0.1.6
[INFO] tweaked toml for crates.io crate exonum_flamer 0.1.6 written to /workspace/builds/worker-0/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c0a821e88317841947d9732577a074b1bfdb872352d594274276bcfc903376b1
[INFO] running `Command { std: "docker" "start" "-a" "c0a821e88317841947d9732577a074b1bfdb872352d594274276bcfc903376b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0a821e88317841947d9732577a074b1bfdb872352d594274276bcfc903376b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0a821e88317841947d9732577a074b1bfdb872352d594274276bcfc903376b1", kill_on_drop: false }`
[INFO] [stdout] c0a821e88317841947d9732577a074b1bfdb872352d594274276bcfc903376b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6e7f21fe300941bbbadf569ee32cb819ba4bfca665095f1adee28a647c4e0018
[INFO] running `Command { std: "docker" "start" "-a" "6e7f21fe300941bbbadf569ee32cb819ba4bfca665095f1adee28a647c4e0018", kill_on_drop: false }`
[INFO] [stderr]  Documenting exonum_flamer v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(plugin_registrar, quote, rustc_private, custom_attribute)]
[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:2:30
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(plugin_registrar, quote, rustc_private, custom_attribute)]
[INFO] [stdout]   |                              ^^^^^ feature has been removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:2:52
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(plugin_registrar, quote, rustc_private, custom_attribute)]
[INFO] [stdout]   |                                                    ^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed in favor of `#![register_tool]` and `#![register_attr]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `rustc_plugin`
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | 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:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | 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:90:3
[INFO] [stdout]    |
[INFO] [stdout] 90 | #[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_block` in this scope
[INFO] [stdout]   --> src/lib.rs:66:13
[INFO] [stdout]    |
[INFO] [stdout] 66 |             quote_block!(self.cx, {
[INFO] [stdout]    |             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `ExtCtxt` in this scope
[INFO] [stdout]   --> src/lib.rs:19:36
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn insert_flame_guard(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:19:52
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn insert_flame_guard(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:19:64
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn insert_flame_guard(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:20:30
[INFO] [stdout]    |
[INFO] [stdout] 20 |                           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:20:46
[INFO] [stdout]    |
[INFO] [stdout] 20 |                           a: Annotatable) -> Annotatable {
[INFO] [stdout]    |                                              ^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Ident` in this scope
[INFO] [stdout]   --> src/lib.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     ident: Ident,
[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:33:17
[INFO] [stdout]    |
[INFO] [stdout] 33 |     cx: &'a mut ExtCtxt<'cx>,
[INFO] [stdout]    |                 ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Folder` in this scope
[INFO] [stdout]   --> src/lib.rs:36:15
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl<'a, 'cx> Folder for Flamer<'a, 'cx> {
[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:37:35
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn fold_item(&mut self, item: P<Item>) -> SmallVector<P<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:37:37
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl<'a, 'cx> Folder for Flamer<'a, 'cx> {
[INFO] [stdout]    |             - help: you might be missing a type parameter: `, Item`
[INFO] [stdout] 37 |     fn fold_item(&mut self, item: P<Item>) -> SmallVector<P<Item>> {
[INFO] [stdout]    |                                     ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `SmallVector` in this scope
[INFO] [stdout]   --> src/lib.rs:37:47
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn fold_item(&mut self, item: P<Item>) -> SmallVector<P<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:37:59
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn fold_item(&mut self, item: P<Item>) -> SmallVector<P<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:37:61
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl<'a, 'cx> Folder for Flamer<'a, 'cx> {
[INFO] [stdout]    |             - help: you might be missing a type parameter: `, Item`
[INFO] [stdout] 37 |     fn fold_item(&mut self, item: P<Item>) -> SmallVector<P<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:48:39
[INFO] [stdout]    |
[INFO] [stdout] 48 |     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:48:48
[INFO] [stdout]    |
[INFO] [stdout] 48 |     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 `Attribute` in this scope
[INFO] [stdout]   --> src/lib.rs:49:39
[INFO] [stdout]    |
[INFO] [stdout] 49 |         fn is_flame_annotation(attr: &Attribute) -> bool {
[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:63:37
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn fold_block(&mut self, block: P<Block>) -> P<Block> {
[INFO] [stdout]    |                                     ^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Block` in this scope
[INFO] [stdout]   --> src/lib.rs:63:39
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl<'a, 'cx> Folder for Flamer<'a, 'cx> {
[INFO] [stdout]    |             - help: you might be missing a type parameter: `, Block`
[INFO] [stdout] ...
[INFO] [stdout] 63 |     fn fold_block(&mut self, block: P<Block>) -> P<Block> {
[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:63:50
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn fold_block(&mut self, block: P<Block>) -> P<Block> {
[INFO] [stdout]    |                                                  ^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Block` in this scope
[INFO] [stdout]   --> src/lib.rs:63:52
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl<'a, 'cx> Folder for Flamer<'a, 'cx> {
[INFO] [stdout]    |             - help: you might be missing a type parameter: `, Block`
[INFO] [stdout] ...
[INFO] [stdout] 63 |     fn fold_block(&mut self, block: P<Block>) -> P<Block> {
[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:76:35
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn fold_expr(&mut self, expr: 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:76:37
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl<'a, 'cx> Folder for Flamer<'a, 'cx> {
[INFO] [stdout]    |             - help: you might be missing a type parameter: `, Expr`
[INFO] [stdout] ...
[INFO] [stdout] 76 |     fn fold_expr(&mut self, expr: 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:76:47
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn fold_expr(&mut self, expr: 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:76:49
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl<'a, 'cx> Folder for Flamer<'a, 'cx> {
[INFO] [stdout]    |             - help: you might be missing a type parameter: `, Expr`
[INFO] [stdout] ...
[INFO] [stdout] 76 |     fn fold_expr(&mut self, expr: 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:85:33
[INFO] [stdout]    |
[INFO] [stdout] 85 |     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:85:41
[INFO] [stdout]    |
[INFO] [stdout] 85 |     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 `Registry` in this scope
[INFO] [stdout]   --> src/lib.rs:91:35
[INFO] [stdout]    |
[INFO] [stdout] 91 | 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:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(plugin_registrar, quote, rustc_private, custom_attribute)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 36 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 `exonum_flamer`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type dylib --crate-name exonum_flamer src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=b8cd7f2ad4df180f -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.1.6` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "6e7f21fe300941bbbadf569ee32cb819ba4bfca665095f1adee28a647c4e0018", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e7f21fe300941bbbadf569ee32cb819ba4bfca665095f1adee28a647c4e0018", kill_on_drop: false }`
[INFO] [stdout] 6e7f21fe300941bbbadf569ee32cb819ba4bfca665095f1adee28a647c4e0018