[INFO] fetching crate shtring 0.1.0...
[INFO] checking shtring-0.1.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate shtring 0.1.0 into /workspace/builds/worker-5-tc2/source
[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-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate shtring 0.1.0 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 6 packages to latest compatible versions
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.12)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 748c81e0c184c3c1aa75633c0498cb274781759d6a9025a83c8ef1c5dec5904e
[INFO] running `Command { std: "docker" "start" "-a" "748c81e0c184c3c1aa75633c0498cb274781759d6a9025a83c8ef1c5dec5904e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "748c81e0c184c3c1aa75633c0498cb274781759d6a9025a83c8ef1c5dec5904e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "748c81e0c184c3c1aa75633c0498cb274781759d6a9025a83c8ef1c5dec5904e", kill_on_drop: false }`
[INFO] [stdout] 748c81e0c184c3c1aa75633c0498cb274781759d6a9025a83c8ef1c5dec5904e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18751165503c0273dde54adc2684a1f8582e788bf98265310707a1c8768b9cb2
[INFO] running `Command { std: "docker" "start" "-a" "18751165503c0273dde54adc2684a1f8582e788bf98265310707a1c8768b9cb2", kill_on_drop: false }`
[INFO] [stderr]     Checking 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] 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] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/lib.rs:63:21
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub fn split(input: &str) -> Result<Vec<&str>, Error> {
[INFO] [stdout]    |                     ^^^^                ----   ----- the lifetimes get resolved as `'_`
[INFO] [stdout]    |                     |                   |
[INFO] [stdout]    |                     |                   the lifetimes get resolved as `'_`
[INFO] [stdout]    |                     this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub fn split(input: &str) -> Result<Vec<&str>, Error<'_>> {
[INFO] [stdout]    |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/lib.rs:63:21
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub fn split(input: &str) -> Result<Vec<&str>, Error> {
[INFO] [stdout]    |                     ^^^^                ----   ----- the lifetimes get resolved as `'_`
[INFO] [stdout]    |                     |                   |
[INFO] [stdout]    |                     |                   the lifetimes get resolved as `'_`
[INFO] [stdout]    |                     this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub fn split(input: &str) -> Result<Vec<&str>, Error<'_>> {
[INFO] [stdout]    |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "18751165503c0273dde54adc2684a1f8582e788bf98265310707a1c8768b9cb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18751165503c0273dde54adc2684a1f8582e788bf98265310707a1c8768b9cb2", kill_on_drop: false }`
[INFO] [stdout] 18751165503c0273dde54adc2684a1f8582e788bf98265310707a1c8768b9cb2