[INFO] updating cached repository JackMordaunt/nativefier
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/JackMordaunt/nativefier
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/JackMordaunt/nativefier" "work/ex/beta-1.38-1/sources/1.37.0/gh/JackMordaunt/nativefier"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/JackMordaunt/nativefier'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/JackMordaunt/nativefier" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JackMordaunt/nativefier"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JackMordaunt/nativefier'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a79db7a6d02effaa825ac40e395bdfe87f125ff1
[INFO] sha for GitHub repo JackMordaunt/nativefier: a79db7a6d02effaa825ac40e395bdfe87f125ff1
[INFO] validating manifest of JackMordaunt/nativefier on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of JackMordaunt/nativefier on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing JackMordaunt/nativefier
[INFO] finished frobbing JackMordaunt/nativefier
[INFO] frobbed toml for JackMordaunt/nativefier written to work/ex/beta-1.38-1/sources/1.37.0/gh/JackMordaunt/nativefier/Cargo.toml
[INFO] started frobbing JackMordaunt/nativefier
[INFO] finished frobbing JackMordaunt/nativefier
[INFO] frobbed toml for JackMordaunt/nativefier written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JackMordaunt/nativefier/Cargo.toml
[INFO] crate JackMordaunt/nativefier already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing JackMordaunt/nativefier against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JackMordaunt/nativefier:/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 0f9e1fb60e8f6dddf0d24f9aa723957efadbb2ec45463bd8d7ba1535dc1f04ad
[INFO] running `"docker" "start" "-a" "0f9e1fb60e8f6dddf0d24f9aa723957efadbb2ec45463bd8d7ba1535dc1f04ad"`
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling thin-slice v0.1.1
[INFO] [stderr]    Compiling boxfnonce v0.1.0
[INFO] [stderr]    Compiling ego-tree v0.6.0
[INFO] [stderr]    Compiling webview-sys v0.1.1
[INFO] [stderr]    Compiling dtoa-short v0.3.2
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]    Compiling serde_json v1.0.34
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling syn v0.15.23
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling tendril v0.4.1
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling servo_arc v0.1.1
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling serde_urlencoded v0.5.4
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling png v0.13.2 (https://github.com/JackMordaunt/image-png.git?branch=deflate/specify-compression#4d436e20)
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling string_cache_codegen v0.4.2
[INFO] [stderr]    Compiling h2 v0.1.14
[INFO] [stderr]    Compiling winres v0.1.8
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling selectors v0.20.0
[INFO] [stderr]    Compiling web-view v0.4.0
[INFO] [stderr]    Compiling tokio-threadpool v0.1.9
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling tokio-fs v0.1.4
[INFO] [stderr]    Compiling env_logger v0.6.0
[INFO] [stderr]    Compiling tokio v0.1.13
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]    Compiling pretty_env_logger v0.3.0
[INFO] [stderr]    Compiling hyper v0.12.19
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling hyper-tls v0.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.84
[INFO] [stderr]    Compiling num-derive v0.2.3
[INFO] [stderr]    Compiling cssparser-macros v0.3.5
[INFO] [stderr]    Compiling html5ever v0.22.5
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling cssparser v0.24.1
[INFO] [stderr]    Compiling reqwest v0.9.5
[INFO] [stderr]    Compiling handlebars v1.1.0
[INFO] [stderr]    Compiling tiff v0.2.1
[INFO] [stderr]    Compiling image v0.20.1
[INFO] [stderr] error[E0506]: cannot assign to `self.input.cached_token` because it is borrowed
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/cssparser-0.24.1/src/parser.rs:572:17
[INFO] [stderr]     |
[INFO] [stderr] 547 |     pub fn next_including_whitespace_and_comments(&mut self) -> Result<&Token<'i>, BasicParseError<'i>> {
[INFO] [stderr]     |                                                   - let's call the lifetime of this reference `'1`
[INFO] [stderr] ...
[INFO] [stderr] 560 |             Some(ref cached_token)
[INFO] [stderr]     |                  ---------------- borrow of `self.input.cached_token` occurs here
[INFO] [stderr] ...
[INFO] [stderr] 572 |                 self.input.cached_token = Some(CachedToken {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^ assignment to borrowed `self.input.cached_token` occurs here
[INFO] [stderr] ...
[INFO] [stderr] 584 |         Ok(token)
[INFO] [stderr]     |         --------- returning this value requires that `self.input.cached_token.0` is borrowed for `'1`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0506`.
[INFO] [stderr] error: Could not compile `cssparser`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "0f9e1fb60e8f6dddf0d24f9aa723957efadbb2ec45463bd8d7ba1535dc1f04ad"`
[INFO] running `"docker" "rm" "-f" "0f9e1fb60e8f6dddf0d24f9aa723957efadbb2ec45463bd8d7ba1535dc1f04ad"`
[INFO] [stdout] 0f9e1fb60e8f6dddf0d24f9aa723957efadbb2ec45463bd8d7ba1535dc1f04ad