[INFO] fetching crate underscore 0.0.2...
[INFO] documenting underscore-0.0.2 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate underscore 0.0.2 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate underscore 0.0.2 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 17131f4da2024ebef750f913e7e3eb3cc800e384c6d4d2e714db1e203f394e80
[INFO] running `Command { std: "docker" "start" "-a" "17131f4da2024ebef750f913e7e3eb3cc800e384c6d4d2e714db1e203f394e80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17131f4da2024ebef750f913e7e3eb3cc800e384c6d4d2e714db1e203f394e80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17131f4da2024ebef750f913e7e3eb3cc800e384c6d4d2e714db1e203f394e80", kill_on_drop: false }`
[INFO] [stdout] 17131f4da2024ebef750f913e7e3eb3cc800e384c6d4d2e714db1e203f394e80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc9a71193a11b8072e02e797a5df67565348df333fbfd137f7784871ac069049
[INFO] running `Command { std: "docker" "start" "-a" "bc9a71193a11b8072e02e797a5df67565348df333fbfd137f7784871ac069049", 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: 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: 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: 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: 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: 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] 37 |     fn index_of(&self, value: &T) -> Option<uint> {
[INFO] [stdout]    |                                             ^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: you might be missing a type parameter
[INFO] [stdout]    |
[INFO] [stdout] 4  | impl<T: PartialEq + Clone + Ord, uint> VecU<T> for Vec<T>{
[INFO] [stdout]    |                                ++++++
[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] 47 |     fn last_index_of(&self, value: &T) -> Option<uint> {
[INFO] [stdout]    |                                                  ^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: you might be missing a type parameter
[INFO] [stdout]    |
[INFO] [stdout] 4  | impl<T: PartialEq + Clone + Ord, uint> VecU<T> for Vec<T>{
[INFO] [stdout]    |                                ++++++
[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] 59 |     fn index_of(&self, value: &T) -> Option<uint>;
[INFO] [stdout]    |                                             ^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: you might be missing a type parameter
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub trait VecU<T, uint> {
[INFO] [stdout]    |                 ++++++
[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] 69 |     fn last_index_of(&self, value: &T) -> Option<uint>;
[INFO] [stdout]    |                                                  ^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: you might be missing a type parameter
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub trait VecU<T, uint> {
[INFO] [stdout]    |                 ++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid suffix `u` for number 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 numeric types (`u32`, `isize`, `f32`, etc.)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid suffix `u` for number 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 numeric types (`u32`, `isize`, `f32`, etc.)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 32 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: `/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/bin/rustdoc --crate-type lib --crate-name underscore src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=10f89c5415abbd28 -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.0.2` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "bc9a71193a11b8072e02e797a5df67565348df333fbfd137f7784871ac069049", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc9a71193a11b8072e02e797a5df67565348df333fbfd137f7784871ac069049", kill_on_drop: false }`
[INFO] [stdout] bc9a71193a11b8072e02e797a5df67565348df333fbfd137f7784871ac069049
