[INFO] fetching crate shtring 0.1.0...
[INFO] documenting shtring-0.1.0 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate shtring 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate shtring 0.1.0 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 shtring 0.1.0
[INFO] finished tweaking crates.io crate shtring 0.1.0
[INFO] tweaked toml for crates.io crate shtring 0.1.0 written to /workspace/builds/worker-0-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] [stderr]     Updating crates.io index
[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-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] a79a2efdd21c442ce20338ca3eb3f5670fbde52b402084555e5d2e099e506059
[INFO] running `Command { std: "docker" "start" "-a" "a79a2efdd21c442ce20338ca3eb3f5670fbde52b402084555e5d2e099e506059", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a79a2efdd21c442ce20338ca3eb3f5670fbde52b402084555e5d2e099e506059", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a79a2efdd21c442ce20338ca3eb3f5670fbde52b402084555e5d2e099e506059", kill_on_drop: false }`
[INFO] [stdout] a79a2efdd21c442ce20338ca3eb3f5670fbde52b402084555e5d2e099e506059
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 79faa6c001c91f1a42fa3b6ff60e39c43f393d625658ca56b834cca70067dc1c
[INFO] running `Command { std: "docker" "start" "-a" "79faa6c001c91f1a42fa3b6ff60e39c43f393d625658ca56b834cca70067dc1c", kill_on_drop: false }`
[INFO] [stderr]    Compiling thiserror v1.0.56
[INFO] [stderr]    Compiling thiserror-impl v1.0.56
[INFO] [stderr]  Documenting shtring v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/lexer.rs:59:80
[INFO] [stdout]    |
[INFO] [stdout] 59 |                     Some((cont, _)) => Some(Ok((idx, Token::Escape(&self.input[(idx..cont + 1)])))),
[INFO] [stdout]    |                                                                                ^             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 59 -                     Some((cont, _)) => Some(Ok((idx, Token::Escape(&self.input[(idx..cont + 1)])))),
[INFO] [stdout] 59 +                     Some((cont, _)) => Some(Ok((idx, Token::Escape(&self.input[idx..cont + 1])))),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/lexer.rs:71:65
[INFO] [stdout]    |
[INFO] [stdout] 71 |                     Some(Ok((idx, Token::Whitespace(&self.input[(idx..end + 1)]))))
[INFO] [stdout]    |                                                                 ^            ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 71 -                     Some(Ok((idx, Token::Whitespace(&self.input[(idx..end + 1)]))))
[INFO] [stdout] 71 +                     Some(Ok((idx, Token::Whitespace(&self.input[idx..end + 1]))))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/lexer.rs:82:59
[INFO] [stdout]    |
[INFO] [stdout] 82 |                     Some(Ok((idx, Token::Word(&self.input[(idx..end + 1)]))))
[INFO] [stdout]    |                                                           ^            ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 82 -                     Some(Ok((idx, Token::Word(&self.input[(idx..end + 1)]))))
[INFO] [stdout] 82 +                     Some(Ok((idx, Token::Word(&self.input[idx..end + 1]))))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/parser.rs:63:97
[INFO] [stdout]    |
[INFO] [stdout] 63 | ...                   Some(Ok((cont, Token::Whitespace(_)))) => break Some(Ok(&self.input[(idx..cont)])),
[INFO] [stdout]    |                                                                                           ^         ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 63 -                             Some(Ok((cont, Token::Whitespace(_)))) => break Some(Ok(&self.input[(idx..cont)])),
[INFO] [stdout] 63 +                             Some(Ok((cont, Token::Whitespace(_)))) => break Some(Ok(&self.input[idx..cont])),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/parser.rs:71:63
[INFO] [stdout]    |
[INFO] [stdout] 71 | ...                   None => break Some(Ok(&self.input[(idx..)])),
[INFO] [stdout]    |                                                         ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 71 -                             None => break Some(Ok(&self.input[(idx..)])),
[INFO] [stdout] 71 +                             None => break Some(Ok(&self.input[idx..])),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(test)]
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant explicit link target
[INFO] [stdout]   --> src/lib.rs:36:38
[INFO] [stdout]    |
[INFO] [stdout] 36 | //! The convenience function [split](split) is provided to easily turn an input string into a `Vec` over the parsed
[INFO] [stdout]    |                               -----  ^^^^^ explicit target is redundant
[INFO] [stdout]    |                               |
[INFO] [stdout]    |                               because label contains path that resolves to same destination
[INFO] [stdout]    |
[INFO] [stdout]    = note: when a link's destination is not specified,
[INFO] [stdout]            the label is used to resolve intra-doc links
[INFO] [stdout]    = note: `#[warn(rustdoc::redundant_explicit_links)]` on by default
[INFO] [stdout] help: remove explicit link target
[INFO] [stdout]    |
[INFO] [stdout] 36 | //! The convenience function [split] is provided to easily turn an input string into a `Vec` over the parsed
[INFO] [stdout]    |                              ~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant explicit link target
[INFO] [stdout]   --> src/lib.rs:38:70
[INFO] [stdout]    |
[INFO] [stdout] 38 | //! returned. For other cases, it is possible to create the [Parser](Parser) manually and iterate over the parsed
[INFO] [stdout]    |                                                              ------  ^^^^^^ explicit target is redundant
[INFO] [stdout]    |                                                              |
[INFO] [stdout]    |                                                              because label contains path that resolves to same destination
[INFO] [stdout]    |
[INFO] [stdout]    = note: when a link's destination is not specified,
[INFO] [stdout]            the label is used to resolve intra-doc links
[INFO] [stdout] help: remove explicit link target
[INFO] [stdout]    |
[INFO] [stdout] 38 | //! returned. For other cases, it is possible to create the [Parser] manually and iterate over the parsed
[INFO] [stdout]    |                                                             ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant explicit link target
[INFO] [stdout]   --> src/parser.rs:44:31
[INFO] [stdout]    |
[INFO] [stdout] 44 |     /// Return a new [Parser](Parser) over a given input string.
[INFO] [stdout]    |                       ------  ^^^^^^ explicit target is redundant
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       because label contains path that resolves to same destination
[INFO] [stdout]    |
[INFO] [stdout]    = note: when a link's destination is not specified,
[INFO] [stdout]            the label is used to resolve intra-doc links
[INFO] [stdout] help: remove explicit link target
[INFO] [stdout]    |
[INFO] [stdout] 44 |     /// Return a new [Parser] over a given input string.
[INFO] [stdout]    |                      ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant explicit link target
[INFO] [stdout]   --> src/lib.rs:61:78
[INFO] [stdout]    |
[INFO] [stdout] 61 | /// arguments after the erroneous one; if they are desired, use the [Parser](Parser) directly. See the crate-level
[INFO] [stdout]    |                                                                      ------  ^^^^^^ explicit target is redundant
[INFO] [stdout]    |                                                                      |
[INFO] [stdout]    |                                                                      because label contains path that resolves to same destination
[INFO] [stdout]    |
[INFO] [stdout]    = note: when a link's destination is not specified,
[INFO] [stdout]            the label is used to resolve intra-doc links
[INFO] [stdout] help: remove explicit link target
[INFO] [stdout]    |
[INFO] [stdout] 61 | /// arguments after the erroneous one; if they are desired, use the [Parser] directly. See the crate-level
[INFO] [stdout]    |                                                                     ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `shtring`
[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 --edition=2018 --crate-type lib --crate-name shtring src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=de8bdc5bb0ffe0ca -L dependency=/opt/rustwide/target/debug/deps --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-cdbd51313957a31a.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "79faa6c001c91f1a42fa3b6ff60e39c43f393d625658ca56b834cca70067dc1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79faa6c001c91f1a42fa3b6ff60e39c43f393d625658ca56b834cca70067dc1c", kill_on_drop: false }`
[INFO] [stdout] 79faa6c001c91f1a42fa3b6ff60e39c43f393d625658ca56b834cca70067dc1c
