[INFO] crate mdbook-epub 0.3.0 is already in cache
[INFO] checking mdbook-epub-0.3.0 against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398
[INFO] extracting crate mdbook-epub 0.3.0 into work/builds/worker-1/source
[INFO] validating manifest of crates.io crate mdbook-epub 0.3.0 on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate mdbook-epub 0.3.0
[INFO] finished tweaking crates.io crate mdbook-epub 0.3.0
[INFO] tweaked toml for crates.io crate mdbook-epub 0.3.0 written to work/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate mdbook-epub 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a1f71976504ca744b374ebee194cbb03932fd995caa038777b8759885b4bf0db
[INFO] running `"docker" "start" "-a" "a1f71976504ca744b374ebee194cbb03932fd995caa038777b8759885b4bf0db"`
[INFO] [stderr]    Compiling libc v0.2.61
[INFO] [stderr]     Checking safemem v0.3.1
[INFO] [stderr]    Compiling miniz_oxide_c_api v0.2.3
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]     Checking hashbrown v0.5.0
[INFO] [stderr]     Checking toml v0.5.1
[INFO] [stderr]     Checking mustache v0.9.0
[INFO] [stderr]     Checking pulldown-cmark v0.5.3
[INFO] [stderr]    Compiling serde_derive v1.0.98
[INFO] [stderr]    Compiling darling_core v0.8.6
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking sha-1 v0.8.1
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking getrandom v0.1.8
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking backtrace-sys v0.1.31
[INFO] [stderr]     Checking bzip2-sys v0.1.7
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking filetime v0.2.5
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking backtrace v0.3.34
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking hyper v0.10.16
[INFO] [stderr]     Checking chrono v0.4.7
[INFO] [stderr]     Checking msdos_time v0.1.6
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking inotify v0.6.1
[INFO] [stderr]     Checking flate2 v1.0.9
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking error-chain v0.12.1
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking handlebars v2.0.1
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking mio-extras v2.0.5
[INFO] [stderr]     Checking zip v0.5.2
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking zip v0.4.2
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling string_cache_codegen v0.4.2
[INFO] [stderr]     Checking ws v0.8.1
[INFO] [stderr]     Checking notify v4.0.12
[INFO] [stderr]     Checking epub v1.2.0
[INFO] [stderr]     Checking epub-builder v0.4.4
[INFO] [stderr]    Compiling mime_guess v1.8.7
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling darling_macro v0.8.6
[INFO] [stderr] warning[E0382]: assign to part of moved value: `node`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/epub-1.2.0/src/xmlutils.rs:68:29
[INFO] [stderr]    |
[INFO] [stderr] 53 |                     let mut node = XMLNode {
[INFO] [stderr]    |                         -------- move occurs because `node` has type `xmlutils::XMLNode`, which does not implement the `Copy` trait
[INFO] [stderr] ...
[INFO] [stderr] 62 |                     let arnode = Rc::new(RefCell::new(node));
[INFO] [stderr]    |                                                       ---- value moved here
[INFO] [stderr] ...
[INFO] [stderr] 68 |                             node.parent = Some(Rc::downgrade(&c));
[INFO] [stderr]    |                             ^^^^^^^^^^^ value partially assigned here after move
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]    = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr]    = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]    Compiling darling v0.8.6
[INFO] [stderr]    Compiling toml-query_derive v0.9.0
[INFO] [stderr]    Compiling markup5ever v0.8.1
[INFO] [stderr]     Checking elasticlunr-rs v2.3.6
[INFO] [stderr]     Checking iron v0.6.0
[INFO] [stderr]     Checking toml-query v0.9.2
[INFO] [stderr]     Checking mount v0.4.0
[INFO] [stderr]     Checking staticfile v0.5.0
[INFO] [stderr]     Checking html5ever v0.23.0
[INFO] [stderr]     Checking ammonia v2.1.2
[INFO] [stderr]     Checking mdbook v0.3.1
[INFO] [stderr]     Checking mdbook-epub v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 37s
[INFO] running `"docker" "inspect" "a1f71976504ca744b374ebee194cbb03932fd995caa038777b8759885b4bf0db"`
[INFO] running `"docker" "rm" "-f" "a1f71976504ca744b374ebee194cbb03932fd995caa038777b8759885b4bf0db"`
[INFO] [stdout] a1f71976504ca744b374ebee194cbb03932fd995caa038777b8759885b4bf0db