[INFO] fetching crate underscore 0.0.2...
[INFO] documenting underscore-0.0.2 against 1.47.0 for beta-1.48-rustdoc-1
[INFO] extracting crate underscore 0.0.2 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate underscore 0.0.2 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate underscore 0.0.2
[INFO] finished tweaking crates.io crate underscore 0.0.2
[INFO] tweaked toml for crates.io crate underscore 0.0.2 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b2a17add540f819874dec510a9b6ed41c7dac4658ed984e01257a5c80122f0a7
[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" "b2a17add540f819874dec510a9b6ed41c7dac4658ed984e01257a5c80122f0a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b2a17add540f819874dec510a9b6ed41c7dac4658ed984e01257a5c80122f0a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2a17add540f819874dec510a9b6ed41c7dac4658ed984e01257a5c80122f0a7", kill_on_drop: false }`
[INFO] [stdout] b2a17add540f819874dec510a9b6ed41c7dac4658ed984e01257a5c80122f0a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce2392363f26fc071dd26e549c562e98413b5ca1b5c6dbeed3232502dd62ecdd
[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" "ce2392363f26fc071dd26e549c562e98413b5ca1b5c6dbeed3232502dd62ecdd", kill_on_drop: false }`
[INFO] [stderr]  Documenting underscore v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected type, found `|`
[INFO] [stdout]   --> src/vec/mod.rs:90:24
[INFO] [stdout]    |
[INFO] [stdout] 90 |     fn reject(self, f: |value: &T| -> bool) -> Vec<T>;
[INFO] [stdout]    |                        ^ expected type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid suffix `u` for integer literal
[INFO] [stdout]   --> src/vec/expand.rs:38:25
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let mut index = 0u;
[INFO] [stdout]    |                         ^^ invalid suffix `u`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the suffix must be one of the integral types (`u32`, `isize`, etc)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid suffix `u` for integer literal
[INFO] [stdout]   --> src/vec/expand.rs:60:24
[INFO] [stdout]    |
[INFO] [stdout] 60 |         for i in range(0u, self.len() - 1) {
[INFO] [stdout]    |                        ^^ invalid suffix `u`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the suffix must be one of the integral types (`u32`, `isize`, etc)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `|`
[INFO] [stdout]   --> src/vec/expand.rs:66:24
[INFO] [stdout]    |
[INFO] [stdout] 66 |     fn reject(self, f: |value: &T| -> bool) -> Vec<T> {
[INFO] [stdout]    |                        ^ expected type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `|`
[INFO] [stdout]   --> src/hashmap/mod.rs:60:32
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn pick_by_filter(self, f: |k: &K, v: &V| -> bool) -> HashMap<K, V>;
[INFO] [stdout]    |                                ^ expected type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected argument name, found `|`
[INFO] [stdout]   --> src/hashmap/mod.rs:60:45
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn pick_by_filter(self, f: |k: &K, v: &V| -> bool) -> HashMap<K, V>;
[INFO] [stdout]    |                                             ^ expected argument name
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `!`, `(`, `)`, `,`, `::`, or `<`, found `|`
[INFO] [stdout]   --> src/hashmap/mod.rs:60:45
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn pick_by_filter(self, f: |k: &K, v: &V| -> bool) -> HashMap<K, V>;
[INFO] [stdout]    |                                             ^
[INFO] [stdout]    |                                             |
[INFO] [stdout]    |                                             expected one of `!`, `(`, `)`, `,`, `::`, or `<`
[INFO] [stdout]    |                                             help: missing `,`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `|`
[INFO] [stdout]   --> src/hashmap/mod.rs:99:32
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn omit_by_filter(self, f: |k: &K, v: &V| -> bool) -> HashMap<K, V>;
[INFO] [stdout]    |                                ^ expected type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected argument name, found `|`
[INFO] [stdout]   --> src/hashmap/mod.rs:99:45
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn omit_by_filter(self, f: |k: &K, v: &V| -> bool) -> HashMap<K, V>;
[INFO] [stdout]    |                                             ^ expected argument name
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `!`, `(`, `)`, `,`, `::`, or `<`, found `|`
[INFO] [stdout]   --> src/hashmap/mod.rs:99:45
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn omit_by_filter(self, f: |k: &K, v: &V| -> bool) -> HashMap<K, V>;
[INFO] [stdout]    |                                             ^
[INFO] [stdout]    |                                             |
[INFO] [stdout]    |                                             expected one of `!`, `(`, `)`, `,`, `::`, or `<`
[INFO] [stdout]    |                                             help: missing `,`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `|`
[INFO] [stdout]   --> src/hashmap/expands.rs:26:32
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn pick_by_filter(self, f: |k: &K, v: &V| -> bool) -> HashMap<K, V> {
[INFO] [stdout]    |                                ^ expected type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: a leading `|` is not allowed in a parameter pattern
[INFO] [stdout]   --> src/hashmap/expands.rs:26:45
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn pick_by_filter(self, f: |k: &K, v: &V| -> bool) -> HashMap<K, V> {
[INFO] [stdout]    |                                             ^ help: remove the `|`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected parameter name, found `->`
[INFO] [stdout]   --> src/hashmap/expands.rs:26:47
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn pick_by_filter(self, f: |k: &K, v: &V| -> bool) -> HashMap<K, V> {
[INFO] [stdout]    |                                               ^^ expected parameter name
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `!`, `(`, `)`, `,`, `::`, or `<`, found `|`
[INFO] [stdout]   --> src/hashmap/expands.rs:26:45
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn pick_by_filter(self, f: |k: &K, v: &V| -> bool) -> HashMap<K, V> {
[INFO] [stdout]    |                                             ^
[INFO] [stdout]    |                                             |
[INFO] [stdout]    |                                             expected one of `!`, `(`, `)`, `,`, `::`, or `<`
[INFO] [stdout]    |                                             help: missing `,`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `|`
[INFO] [stdout]   --> src/hashmap/expands.rs:45:32
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn omit_by_filter(self, f: |k: &K, v: &V| -> bool) -> HashMap<K, V> {
[INFO] [stdout]    |                                ^ expected type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: a leading `|` is not allowed in a parameter pattern
[INFO] [stdout]   --> src/hashmap/expands.rs:45:45
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn omit_by_filter(self, f: |k: &K, v: &V| -> bool) -> HashMap<K, V> {
[INFO] [stdout]    |                                             ^ help: remove the `|`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected parameter name, found `->`
[INFO] [stdout]   --> src/hashmap/expands.rs:45:47
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn omit_by_filter(self, f: |k: &K, v: &V| -> bool) -> HashMap<K, V> {
[INFO] [stdout]    |                                               ^^ expected parameter name
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `!`, `(`, `)`, `,`, `::`, or `<`, found `|`
[INFO] [stdout]   --> src/hashmap/expands.rs:45:45
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn omit_by_filter(self, f: |k: &K, v: &V| -> bool) -> HashMap<K, V> {
[INFO] [stdout]    |                                             ^
[INFO] [stdout]    |                                             |
[INFO] [stdout]    |                                             expected one of `!`, `(`, `)`, `,`, `::`, or `<`
[INFO] [stdout]    |                                             help: missing `,`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `|`
[INFO] [stdout]   --> src/btreemap/mod.rs:60:32
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn pick_by_filter(self, f: |k: &K, v: &V| -> bool) -> BTreeMap<K, V>;
[INFO] [stdout]    |                                ^ expected type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected argument name, found `|`
[INFO] [stdout]   --> src/btreemap/mod.rs:60:45
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn pick_by_filter(self, f: |k: &K, v: &V| -> bool) -> BTreeMap<K, V>;
[INFO] [stdout]    |                                             ^ expected argument name
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `!`, `(`, `)`, `,`, `::`, or `<`, found `|`
[INFO] [stdout]   --> src/btreemap/mod.rs:60:45
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn pick_by_filter(self, f: |k: &K, v: &V| -> bool) -> BTreeMap<K, V>;
[INFO] [stdout]    |                                             ^
[INFO] [stdout]    |                                             |
[INFO] [stdout]    |                                             expected one of `!`, `(`, `)`, `,`, `::`, or `<`
[INFO] [stdout]    |                                             help: missing `,`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `|`
[INFO] [stdout]   --> src/btreemap/mod.rs:99:32
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn omit_by_filter(self, f: |k: &K, v: &V| -> bool) -> BTreeMap<K, V>;
[INFO] [stdout]    |                                ^ expected type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected argument name, found `|`
[INFO] [stdout]   --> src/btreemap/mod.rs:99:45
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn omit_by_filter(self, f: |k: &K, v: &V| -> bool) -> BTreeMap<K, V>;
[INFO] [stdout]    |                                             ^ expected argument name
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `!`, `(`, `)`, `,`, `::`, or `<`, found `|`
[INFO] [stdout]   --> src/btreemap/mod.rs:99:45
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn omit_by_filter(self, f: |k: &K, v: &V| -> bool) -> BTreeMap<K, V>;
[INFO] [stdout]    |                                             ^
[INFO] [stdout]    |                                             |
[INFO] [stdout]    |                                             expected one of `!`, `(`, `)`, `,`, `::`, or `<`
[INFO] [stdout]    |                                             help: missing `,`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `|`
[INFO] [stdout]   --> src/btreemap/expands.rs:26:32
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn pick_by_filter(self, f: |k: &K, v: &V| -> bool) -> BTreeMap<K, V> {
[INFO] [stdout]    |                                ^ expected type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: a leading `|` is not allowed in a parameter pattern
[INFO] [stdout]   --> src/btreemap/expands.rs:26:45
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn pick_by_filter(self, f: |k: &K, v: &V| -> bool) -> BTreeMap<K, V> {
[INFO] [stdout]    |                                             ^ help: remove the `|`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected parameter name, found `->`
[INFO] [stdout]   --> src/btreemap/expands.rs:26:47
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn pick_by_filter(self, f: |k: &K, v: &V| -> bool) -> BTreeMap<K, V> {
[INFO] [stdout]    |                                               ^^ expected parameter name
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `!`, `(`, `)`, `,`, `::`, or `<`, found `|`
[INFO] [stdout]   --> src/btreemap/expands.rs:26:45
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn pick_by_filter(self, f: |k: &K, v: &V| -> bool) -> BTreeMap<K, V> {
[INFO] [stdout]    |                                             ^
[INFO] [stdout]    |                                             |
[INFO] [stdout]    |                                             expected one of `!`, `(`, `)`, `,`, `::`, or `<`
[INFO] [stdout]    |                                             help: missing `,`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `|`
[INFO] [stdout]   --> src/btreemap/expands.rs:42:32
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn omit_by_filter(self, f: |k: &K, v: &V| -> bool) -> BTreeMap<K, V> {
[INFO] [stdout]    |                                ^ expected type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: a leading `|` is not allowed in a parameter pattern
[INFO] [stdout]   --> src/btreemap/expands.rs:42:45
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn omit_by_filter(self, f: |k: &K, v: &V| -> bool) -> BTreeMap<K, V> {
[INFO] [stdout]    |                                             ^ help: remove the `|`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected parameter name, found `->`
[INFO] [stdout]   --> src/btreemap/expands.rs:42:47
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn omit_by_filter(self, f: |k: &K, v: &V| -> bool) -> BTreeMap<K, V> {
[INFO] [stdout]    |                                               ^^ expected parameter name
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `!`, `(`, `)`, `,`, `::`, or `<`, found `|`
[INFO] [stdout]   --> src/btreemap/expands.rs:42:45
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn omit_by_filter(self, f: |k: &K, v: &V| -> bool) -> BTreeMap<K, V> {
[INFO] [stdout]    |                                             ^
[INFO] [stdout]    |                                             |
[INFO] [stdout]    |                                             expected one of `!`, `(`, `)`, `,`, `::`, or `<`
[INFO] [stdout]    |                                             help: missing `,`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `uint` in this scope
[INFO] [stdout]   --> src/vec/expand.rs:37:45
[INFO] [stdout]    |
[INFO] [stdout] 4  | impl<T: PartialEq + Clone + Ord> VecU<T> for Vec<T>{
[INFO] [stdout]    |                                - help: you might be missing a type parameter: `, uint`
[INFO] [stdout] ...
[INFO] [stdout] 37 |     fn index_of(&self, value: &T) -> Option<uint> {
[INFO] [stdout]    |                                             ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `uint` in this scope
[INFO] [stdout]   --> src/vec/expand.rs:47:50
[INFO] [stdout]    |
[INFO] [stdout] 4  | impl<T: PartialEq + Clone + Ord> VecU<T> for Vec<T>{
[INFO] [stdout]    |                                - help: you might be missing a type parameter: `, uint`
[INFO] [stdout] ...
[INFO] [stdout] 47 |     fn last_index_of(&self, value: &T) -> Option<uint> {
[INFO] [stdout]    |                                                  ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `uint` in this scope
[INFO] [stdout]   --> src/vec/mod.rs:59:45
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub trait VecU<T> {
[INFO] [stdout]    |                 - help: you might be missing a type parameter: `, uint`
[INFO] [stdout] ...
[INFO] [stdout] 59 |     fn index_of(&self, value: &T) -> Option<uint>;
[INFO] [stdout]    |                                             ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `uint` in this scope
[INFO] [stdout]   --> src/vec/mod.rs:69:50
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub trait VecU<T> {
[INFO] [stdout]    |                 - help: you might be missing a type parameter: `, uint`
[INFO] [stdout] ...
[INFO] [stdout] 69 |     fn last_index_of(&self, value: &T) -> Option<uint>;
[INFO] [stdout]    |                                                  ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 37 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `underscore`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name underscore src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.0.2` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "ce2392363f26fc071dd26e549c562e98413b5ca1b5c6dbeed3232502dd62ecdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce2392363f26fc071dd26e549c562e98413b5ca1b5c6dbeed3232502dd62ecdd", kill_on_drop: false }`
[INFO] [stdout] ce2392363f26fc071dd26e549c562e98413b5ca1b5c6dbeed3232502dd62ecdd
