[INFO] fetching crate shtring 0.1.0...
[INFO] testing shtring-0.1.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate shtring 0.1.0 into /workspace/builds/worker-7-tc1/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-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate shtring 0.1.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "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: v2.0.17)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fe673a880d567d0c77262ddf2d98d0177bd4779e895a2a44c430c70386916a45
[INFO] running `Command { std: "docker" "start" "-a" "fe673a880d567d0c77262ddf2d98d0177bd4779e895a2a44c430c70386916a45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fe673a880d567d0c77262ddf2d98d0177bd4779e895a2a44c430c70386916a45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe673a880d567d0c77262ddf2d98d0177bd4779e895a2a44c430c70386916a45", kill_on_drop: false }`
[INFO] [stdout] fe673a880d567d0c77262ddf2d98d0177bd4779e895a2a44c430c70386916a45
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 826c1b25734e9390f0f227a62cf4c4ec94d81dd773d72568d2d1884c800af0b5
[INFO] running `Command { std: "docker" "start" "-a" "826c1b25734e9390f0f227a62cf4c4ec94d81dd773d72568d2d1884c800af0b5", kill_on_drop: false }`
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling shtring v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(test)]
[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] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `shtring` (lib) due to 1 previous error; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "826c1b25734e9390f0f227a62cf4c4ec94d81dd773d72568d2d1884c800af0b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "826c1b25734e9390f0f227a62cf4c4ec94d81dd773d72568d2d1884c800af0b5", kill_on_drop: false }`
[INFO] [stdout] 826c1b25734e9390f0f227a62cf4c4ec94d81dd773d72568d2d1884c800af0b5