[INFO] cloning repository https://github.com/fitzgen/rust-words
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fitzgen/rust-words" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffitzgen%2Frust-words", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffitzgen%2Frust-words'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7e230a7414ad9761ed39b02d220bb94b99ad81db
[INFO] documenting fitzgen/rust-words against 1.69.0 for beta-1.70-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffitzgen%2Frust-words" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fitzgen/rust-words 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 git repo https://github.com/fitzgen/rust-words
[INFO] finished tweaking git repo https://github.com/fitzgen/rust-words
[INFO] tweaked toml for git repo https://github.com/fitzgen/rust-words written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/fitzgen/rust-words already has a lockfile, it will not be regenerated
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 2e0a35ead14f58866e447c02d3640740d226e321cb84e970945237d3092b4ace
[INFO] running `Command { std: "docker" "start" "-a" "2e0a35ead14f58866e447c02d3640740d226e321cb84e970945237d3092b4ace", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e0a35ead14f58866e447c02d3640740d226e321cb84e970945237d3092b4ace", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e0a35ead14f58866e447c02d3640740d226e321cb84e970945237d3092b4ace", kill_on_drop: false }`
[INFO] [stdout] 2e0a35ead14f58866e447c02d3640740d226e321cb84e970945237d3092b4ace
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 25e54b2829146d1fc8254728f81943601fb1e05e7739dc6d2090a8a966879e97
[INFO] running `Command { std: "docker" "start" "-a" "25e54b2829146d1fc8254728f81943601fb1e05e7739dc6d2090a8a966879e97", kill_on_drop: false }`
[INFO] [stderr]  Documenting words v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected type, found `|`
[INFO] [stdout]   --> src/my_tree.rs:24:60
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn insert_or_modify(self, k: K, v: V, modify: &mut |V| -> V) -> Tree<K, V> {
[INFO] [stdout]    |                                                            ^ expected type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `|`
[INFO] [stdout]   --> src/my_tree.rs:58:32
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn each(&self, f: &mut |&K, &V|) {
[INFO] [stdout]    |                                ^ expected type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: a trailing `|` is not allowed in an or-pattern
[INFO] [stdout]   --> src/my_tree.rs:58:39
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn each(&self, f: &mut |&K, &V|) {
[INFO] [stdout]    |                                     --^ help: remove the `|`
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     while parsing this or-pattern starting here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected `:`, found `)`
[INFO] [stdout]   --> src/my_tree.rs:58:40
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn each(&self, f: &mut |&K, &V|) {
[INFO] [stdout]    |                                        ^ expected `:`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `|`
[INFO] [stdout]   --> src/my_tree.rs:73:32
[INFO] [stdout]    |
[INFO] [stdout] 73 |     let mut assert_no_modify : |uint| -> uint = |_| { assert!(false); 0u };
[INFO] [stdout]    |         --------------------   ^ expected type
[INFO] [stdout]    |         |
[INFO] [stdout]    |         while parsing the type for `mut assert_no_modify`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `|`
[INFO] [stdout]   --> src/my_tree.rs:93:32
[INFO] [stdout]    |
[INFO] [stdout] 93 |     let mut assert_no_modify : |uint| -> uint = |_| { assert!(false); 0u };
[INFO] [stdout]    |         --------------------   ^ expected type
[INFO] [stdout]    |         |
[INFO] [stdout]    |         while parsing the type for `mut assert_no_modify`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::io::IoErrorKind`
[INFO] [stdout]  --> src/word_reader.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::IoErrorKind;
[INFO] [stdout]   |     ^^^^^^^^^-----------
[INFO] [stdout]   |     |        |
[INFO] [stdout]   |     |        help: a similar name exists in the module: `ErrorKind`
[INFO] [stdout]   |     no `IoErrorKind` in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `IoError` in module `io`
[INFO] [stdout]   --> src/word_reader.rs:16:22
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn is_eof(err : &io::IoError) -> bool {
[INFO] [stdout]    |                      ^^^^^^^ help: a struct with a similar name exists: `Error`
[INFO] [stdout]   --> /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/io/error.rs:68:1
[INFO] [stdout]    |
[INFO] [stdout]    = note: similarly named struct `Error` defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0603]: module `stdio` is private
[INFO] [stdout]  --> src/word_reader.rs:2:14
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::stdio;
[INFO] [stdout]   |              ^^^^^ private module
[INFO] [stdout]   |
[INFO] [stdout] note: the module `stdio` is defined here
[INFO] [stdout]  --> /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/io/mod.rs:296:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: box expression syntax is experimental; you can call `Box::new` instead
[INFO] [stdout]   --> src/my_tree.rs:28:46
[INFO] [stdout]    |
[INFO] [stdout] 28 | ...                   left: box Tree::Null,
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #49733 <https://github.com/rust-lang/rust/issues/49733> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: box expression syntax is experimental; you can call `Box::new` instead
[INFO] [stdout]   --> src/my_tree.rs:29:47
[INFO] [stdout]    |
[INFO] [stdout] 29 | ...                   right: box Tree::Null
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #49733 <https://github.com/rust-lang/rust/issues/49733> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: box expression syntax is experimental; you can call `Box::new` instead
[INFO] [stdout]   --> src/my_tree.rs:40:48
[INFO] [stdout]    |
[INFO] [stdout] 40 | ...                   left: box left.insert_or_modify(k, v, modify),
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #49733 <https://github.com/rust-lang/rust/issues/49733> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: box expression syntax is experimental; you can call `Box::new` instead
[INFO] [stdout]   --> src/my_tree.rs:46:52
[INFO] [stdout]    |
[INFO] [stdout] 46 | ...                   right: box right.insert_or_modify(k, v, modify)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #49733 <https://github.com/rust-lang/rust/issues/49733> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid suffix `u` for number literal
[INFO] [stdout]   --> src/word_reader.rs:61:25
[INFO] [stdout]    |
[INFO] [stdout] 61 |         if word.len() > 0u  { Some(word) } else { None }
[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/main.rs:10:50
[INFO] [stdout]    |
[INFO] [stdout] 10 |             |words, w| words.insert_or_modify(w, 1u, &mut |v| v + 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[E0107]: trait takes 0 generic arguments but 1 generic argument was supplied
[INFO] [stdout]   --> src/word_reader.rs:37:6
[INFO] [stdout]    |
[INFO] [stdout] 37 | impl Iterator<String> for WordReader {
[INFO] [stdout]    |      ^^^^^^^^ expected 0 generic arguments
[INFO] [stdout]    |
[INFO] [stdout] help: replace the generic bound with the associated type
[INFO] [stdout]    |
[INFO] [stdout] 37 | impl Iterator<Item = String> for WordReader {
[INFO] [stdout]    |               ++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0046]: not all trait items implemented, missing: `Item`
[INFO] [stdout]   --> src/word_reader.rs:37:1
[INFO] [stdout]    |
[INFO] [stdout] 37 | impl Iterator<String> for WordReader {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `Item` in implementation
[INFO] [stdout]    |
[INFO] [stdout]    = help: implement the missing item: `type Item = Type;`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 17 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0046, E0107, E0412, E0432, E0603, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0046`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `words`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name words src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=147f068e8dc3d3e2 -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.0.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "25e54b2829146d1fc8254728f81943601fb1e05e7739dc6d2090a8a966879e97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25e54b2829146d1fc8254728f81943601fb1e05e7739dc6d2090a8a966879e97", kill_on_drop: false }`
[INFO] [stdout] 25e54b2829146d1fc8254728f81943601fb1e05e7739dc6d2090a8a966879e97
