[INFO] crate crowbook 0.14.1 is already in cache
[INFO] extracting crate crowbook 0.14.1 into work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/crowbook/0.14.1
[INFO] extracting crate crowbook 0.14.1 into work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/reg/crowbook/0.14.1
[INFO] validating manifest of crowbook-0.14.1 on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of crowbook-0.14.1 on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing crowbook-0.14.1
[INFO] finished frobbing crowbook-0.14.1
[INFO] frobbed toml for crowbook-0.14.1 written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/crowbook/0.14.1/Cargo.toml
[INFO] started frobbing crowbook-0.14.1
[INFO] finished frobbing crowbook-0.14.1
[INFO] frobbed toml for crowbook-0.14.1 written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/reg/crowbook/0.14.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking crowbook-0.14.1 against master#5f9c0448dde167128d668da4555879f64e56af1d for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-5/master#5f9c0448dde167128d668da4555879f64e56af1d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/crowbook/0.14.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 550fb6703008c1fb9489da238ff9db9da46c9c677bf008dc7d393e8015fc2d24
[INFO] running `"docker" "start" "-a" "550fb6703008c1fb9489da238ff9db9da46c9c677bf008dc7d393e8015fc2d24"`
[INFO] [stderr]    Compiling same-file v0.1.3
[INFO] [stderr]    Compiling pocket-resources v0.3.2
[INFO] [stderr]     Checking numerals v0.1.2
[INFO] [stderr]    Compiling stemmer v0.3.2
[INFO] [stderr]     Checking crowbook-intl-runtime v0.1.0
[INFO] [stderr]     Checking mustache v0.9.0
[INFO] [stderr]    Compiling bincode v0.6.1
[INFO] [stderr]     Checking crowbook-text-processing v0.2.7
[INFO] [stderr]     Checking simplelog v0.5.3
[INFO] [stderr]    Compiling hyphenation_commons v0.6.1
[INFO] [stderr]     Checking syntect v2.1.0
[INFO] [stderr]    Compiling walkdir v1.0.7
[INFO] [stderr]     Checking epub-builder v0.4.3
[INFO] [stderr] error[E0283]: type annotations required: cannot resolve `std::string::String: std::convert::AsRef<_>`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/epub-builder-0.4.3/src/epub.rs:207:74
[INFO] [stderr]     |
[INFO] [stderr] 207 |         self.toc.add(TocElement::new("toc.xhtml", self.metadata.toc_name.as_ref()));
[INFO] [stderr]     |                                                                          ^^^^^^
[INFO] [stderr] 
[INFO] [stderr]    Compiling crowbook-intl v0.2.1
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0283`.
[INFO] [stderr] error: Could not compile `epub-builder`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "550fb6703008c1fb9489da238ff9db9da46c9c677bf008dc7d393e8015fc2d24"`
[INFO] running `"docker" "rm" "-f" "550fb6703008c1fb9489da238ff9db9da46c9c677bf008dc7d393e8015fc2d24"`
[INFO] [stdout] 550fb6703008c1fb9489da238ff9db9da46c9c677bf008dc7d393e8015fc2d24