[INFO] fetching crate crowbook 0.17.1...
[INFO] checking crowbook-0.17.1 against c60b92c03ca8a3b101eb9d57f51e2232690638c7 for pr-164148-crater-rollup
[INFO] extracting crate crowbook 0.17.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate crowbook 0.17.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate crowbook 0.17.1
[INFO] tweaked toml for crates.io crate crowbook 0.17.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate crowbook 0.17.1 on toolchain c60b92c03ca8a3b101eb9d57f51e2232690638c7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate crowbook 0.17.1 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" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 5a9d06a3f49a39765597cb12e6b34712af5cedadc6cd66a9df1e8bca2ec760b1
[INFO] running `Command { std: "docker" "start" "5a9d06a3f49a39765597cb12e6b34712af5cedadc6cd66a9df1e8bca2ec760b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a9d06a3f49a39765597cb12e6b34712af5cedadc6cd66a9df1e8bca2ec760b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "5a9d06a3f49a39765597cb12e6b34712af5cedadc6cd66a9df1e8bca2ec760b1" "/opt/rustwide/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a9d06a3f49a39765597cb12e6b34712af5cedadc6cd66a9df1e8bca2ec760b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "5a9d06a3f49a39765597cb12e6b34712af5cedadc6cd66a9df1e8bca2ec760b1" "/opt/rustwide/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stderr]     Checking epub-builder v0.8.2
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[INFO] [stderr]    Compiling rust-i18n-macro v3.1.5
[INFO] [stderr]     Checking crowbook v0.17.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated constant `std::f64::NAN`: replaced by the `NAN` associated constant on `f64`
[INFO] [stdout]    --> src/lib/stats.rs:353:37
[INFO] [stdout]     |
[INFO] [stdout] 353 |                 flesch_score = f64::NAN;
[INFO] [stdout]     |                                     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::f64::NAN`: replaced by the `NAN` associated constant on `f64`
[INFO] [stdout]    --> src/lib/stats.rs:353:37
[INFO] [stdout]     |
[INFO] [stdout] 353 |                 flesch_score = f64::NAN;
[INFO] [stdout]     |                                     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str` crowbook
[INFO] [stdout]    --> src/lib/epub.rs:245:85
[INFO] [stdout]     |
[INFO] [stdout] 245 |         let epub_css_add = self.html.book.options.get_str("epub.css.add").unwrap_or("".into()); 
[INFO] [stdout]     |                                                                                     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 245 -         let epub_css_add = self.html.book.options.get_str("epub.css.add").unwrap_or("".into()); 
[INFO] [stdout] 245 +         let epub_css_add = self.html.book.options.get_str("epub.css.add").unwrap_or(""); 
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 245 -         let epub_css_add = self.html.book.options.get_str("epub.css.add").unwrap_or("".into()); 
[INFO] [stdout] 245 +         let epub_css_add = self.html.book.options.get_str("epub.css.add").unwrap_or(<&str as Into<_>>::into("")); 
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str` crowbook
[INFO] [stdout]    --> src/lib/html_dir.rs:446:85
[INFO] [stdout]     |
[INFO] [stdout] 446 |         let html_css_add = self.html.book.options.get_str("html.css.add").unwrap_or("".into());
[INFO] [stdout]     |                                                                                     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 446 -         let html_css_add = self.html.book.options.get_str("html.css.add").unwrap_or("".into());
[INFO] [stdout] 446 +         let html_css_add = self.html.book.options.get_str("html.css.add").unwrap_or("");
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 446 -         let html_css_add = self.html.book.options.get_str("html.css.add").unwrap_or("".into());
[INFO] [stdout] 446 +         let html_css_add = self.html.book.options.get_str("html.css.add").unwrap_or(<&str as Into<_>>::into(""));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str` crowbook
[INFO] [stdout]    --> src/lib/latex.rs:298:84
[INFO] [stdout]     |
[INFO] [stdout] 298 |         let tex_tmpl_add = self.book.options.get_str("tex.template.add").unwrap_or("".into());
[INFO] [stdout]     |                                                                                    ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 298 -         let tex_tmpl_add = self.book.options.get_str("tex.template.add").unwrap_or("".into());
[INFO] [stdout] 298 +         let tex_tmpl_add = self.book.options.get_str("tex.template.add").unwrap_or("");
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 298 -         let tex_tmpl_add = self.book.options.get_str("tex.template.add").unwrap_or("".into());
[INFO] [stdout] 298 +         let tex_tmpl_add = self.book.options.get_str("tex.template.add").unwrap_or(<&str as Into<_>>::into(""));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str` crowbook
[INFO] [stdout]    --> src/lib/latex.rs:349:85
[INFO] [stdout]     |
[INFO] [stdout] 349 |         let chapter_name = self.book.options.get_str("rendering.chapter").unwrap_or("".into());
[INFO] [stdout]     |                                                                                     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 349 -         let chapter_name = self.book.options.get_str("rendering.chapter").unwrap_or("".into());
[INFO] [stdout] 349 +         let chapter_name = self.book.options.get_str("rendering.chapter").unwrap_or("");
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 349 -         let chapter_name = self.book.options.get_str("rendering.chapter").unwrap_or("".into());
[INFO] [stdout] 349 +         let chapter_name = self.book.options.get_str("rendering.chapter").unwrap_or(<&str as Into<_>>::into(""));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str` crowbook
[INFO] [stdout]    --> src/lib/latex.rs:352:79
[INFO] [stdout]     |
[INFO] [stdout] 352 |         let part_name = self.book.options.get_str("rendering.part").unwrap_or("".into());
[INFO] [stdout]     |                                                                               ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 352 -         let part_name = self.book.options.get_str("rendering.part").unwrap_or("".into());
[INFO] [stdout] 352 +         let part_name = self.book.options.get_str("rendering.part").unwrap_or("");
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 352 -         let part_name = self.book.options.get_str("rendering.part").unwrap_or("".into());
[INFO] [stdout] 352 +         let part_name = self.book.options.get_str("rendering.part").unwrap_or(<&str as Into<_>>::into(""));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `crowbook` (lib) due to 5 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: useless conversion to the same type: `&str` crowbook
[INFO] [stdout]    --> src/lib/epub.rs:245:85
[INFO] [stdout]     |
[INFO] [stdout] 245 |         let epub_css_add = self.html.book.options.get_str("epub.css.add").unwrap_or("".into()); 
[INFO] [stdout]     |                                                                                     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 245 -         let epub_css_add = self.html.book.options.get_str("epub.css.add").unwrap_or("".into()); 
[INFO] [stdout] 245 +         let epub_css_add = self.html.book.options.get_str("epub.css.add").unwrap_or(""); 
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 245 -         let epub_css_add = self.html.book.options.get_str("epub.css.add").unwrap_or("".into()); 
[INFO] [stdout] 245 +         let epub_css_add = self.html.book.options.get_str("epub.css.add").unwrap_or(<&str as Into<_>>::into("")); 
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str` crowbook
[INFO] [stdout]    --> src/lib/html_dir.rs:446:85
[INFO] [stdout]     |
[INFO] [stdout] 446 |         let html_css_add = self.html.book.options.get_str("html.css.add").unwrap_or("".into());
[INFO] [stdout]     |                                                                                     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 446 -         let html_css_add = self.html.book.options.get_str("html.css.add").unwrap_or("".into());
[INFO] [stdout] 446 +         let html_css_add = self.html.book.options.get_str("html.css.add").unwrap_or("");
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 446 -         let html_css_add = self.html.book.options.get_str("html.css.add").unwrap_or("".into());
[INFO] [stdout] 446 +         let html_css_add = self.html.book.options.get_str("html.css.add").unwrap_or(<&str as Into<_>>::into(""));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str` crowbook
[INFO] [stdout]    --> src/lib/latex.rs:298:84
[INFO] [stdout]     |
[INFO] [stdout] 298 |         let tex_tmpl_add = self.book.options.get_str("tex.template.add").unwrap_or("".into());
[INFO] [stdout]     |                                                                                    ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 298 -         let tex_tmpl_add = self.book.options.get_str("tex.template.add").unwrap_or("".into());
[INFO] [stdout] 298 +         let tex_tmpl_add = self.book.options.get_str("tex.template.add").unwrap_or("");
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 298 -         let tex_tmpl_add = self.book.options.get_str("tex.template.add").unwrap_or("".into());
[INFO] [stdout] 298 +         let tex_tmpl_add = self.book.options.get_str("tex.template.add").unwrap_or(<&str as Into<_>>::into(""));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str` crowbook
[INFO] [stdout]    --> src/lib/latex.rs:349:85
[INFO] [stdout]     |
[INFO] [stdout] 349 |         let chapter_name = self.book.options.get_str("rendering.chapter").unwrap_or("".into());
[INFO] [stdout]     |                                                                                     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 349 -         let chapter_name = self.book.options.get_str("rendering.chapter").unwrap_or("".into());
[INFO] [stdout] 349 +         let chapter_name = self.book.options.get_str("rendering.chapter").unwrap_or("");
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 349 -         let chapter_name = self.book.options.get_str("rendering.chapter").unwrap_or("".into());
[INFO] [stdout] 349 +         let chapter_name = self.book.options.get_str("rendering.chapter").unwrap_or(<&str as Into<_>>::into(""));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str` crowbook
[INFO] [stdout]    --> src/lib/latex.rs:352:79
[INFO] [stdout]     |
[INFO] [stdout] 352 |         let part_name = self.book.options.get_str("rendering.part").unwrap_or("".into());
[INFO] [stdout]     |                                                                               ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 352 -         let part_name = self.book.options.get_str("rendering.part").unwrap_or("".into());
[INFO] [stdout] 352 +         let part_name = self.book.options.get_str("rendering.part").unwrap_or("");
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 352 -         let part_name = self.book.options.get_str("rendering.part").unwrap_or("".into());
[INFO] [stdout] 352 +         let part_name = self.book.options.get_str("rendering.part").unwrap_or(<&str as Into<_>>::into(""));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `crowbook` (lib test) due to 5 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "5a9d06a3f49a39765597cb12e6b34712af5cedadc6cd66a9df1e8bca2ec760b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a9d06a3f49a39765597cb12e6b34712af5cedadc6cd66a9df1e8bca2ec760b1", kill_on_drop: false }`
[INFO] [stdout] 5a9d06a3f49a39765597cb12e6b34712af5cedadc6cd66a9df1e8bca2ec760b1
