[INFO] crate rusty_xkcd 0.1.2 is already in cache
[INFO] extracting crate rusty_xkcd 0.1.2 into work/ex/beta-1.37-6/sources/1.36.0/reg/rusty_xkcd/0.1.2
[INFO] extracting crate rusty_xkcd 0.1.2 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/rusty_xkcd/0.1.2
[INFO] validating manifest of rusty_xkcd-0.1.2 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rusty_xkcd-0.1.2 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rusty_xkcd-0.1.2
[INFO] finished frobbing rusty_xkcd-0.1.2
[INFO] frobbed toml for rusty_xkcd-0.1.2 written to work/ex/beta-1.37-6/sources/1.36.0/reg/rusty_xkcd/0.1.2/Cargo.toml
[INFO] started frobbing rusty_xkcd-0.1.2
[INFO] finished frobbing rusty_xkcd-0.1.2
[INFO] frobbed toml for rusty_xkcd-0.1.2 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/rusty_xkcd/0.1.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing rusty_xkcd-0.1.2 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/rusty_xkcd/0.1.2:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 52fcea36ca6756bbfa9f42a178b92fd180d77315b2d67b24fdf064b30f43276d
[INFO] running `"docker" "start" "-a" "52fcea36ca6756bbfa9f42a178b92fd180d77315b2d67b24fdf064b30f43276d"`
[INFO] [stderr]    Compiling ego-tree v0.6.0
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling html5ever v0.22.5
[INFO] [stderr]    Compiling cssparser-macros v0.3.5
[INFO] [stderr]    Compiling selectors v0.20.0
[INFO] [stderr]    Compiling markup5ever v0.7.5
[INFO] [stderr]    Compiling tokio-threadpool v0.1.15
[INFO] [stderr]    Compiling cookie_store v0.7.0
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling hyper v0.12.33
[INFO] [stderr]    Compiling cssparser v0.24.1
[INFO] [stderr]    Compiling hyper-tls v0.3.2
[INFO] [stderr]    Compiling reqwest v0.9.19
[INFO] [stderr] warning[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]     = 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] 
[INFO] [stderr]    Compiling scraper v0.9.2
[INFO] [stderr]    Compiling rusty_xkcd v0.1.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 06s
[INFO] running `"docker" "inspect" "52fcea36ca6756bbfa9f42a178b92fd180d77315b2d67b24fdf064b30f43276d"`
[INFO] running `"docker" "rm" "-f" "52fcea36ca6756bbfa9f42a178b92fd180d77315b2d67b24fdf064b30f43276d"`
[INFO] [stdout] 52fcea36ca6756bbfa9f42a178b92fd180d77315b2d67b24fdf064b30f43276d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/rusty_xkcd/0.1.2:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 81e22e3fa51404279077dedf1f47477fa6b00eeb8ba06fdde6ff7f49fe35e53b
[INFO] running `"docker" "start" "-a" "81e22e3fa51404279077dedf1f47477fa6b00eeb8ba06fdde6ff7f49fe35e53b"`
[INFO] [stderr]    Compiling rusty_xkcd v0.1.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.73s
[INFO] running `"docker" "inspect" "81e22e3fa51404279077dedf1f47477fa6b00eeb8ba06fdde6ff7f49fe35e53b"`
[INFO] running `"docker" "rm" "-f" "81e22e3fa51404279077dedf1f47477fa6b00eeb8ba06fdde6ff7f49fe35e53b"`
[INFO] [stdout] 81e22e3fa51404279077dedf1f47477fa6b00eeb8ba06fdde6ff7f49fe35e53b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/rusty_xkcd/0.1.2:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 76eb6ace3a69acec6054ed58b095ff79f375e9795a3a7574ee49f7a48367dc97
[INFO] running `"docker" "start" "-a" "76eb6ace3a69acec6054ed58b095ff79f375e9795a3a7574ee49f7a48367dc97"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rusty_xkcd-73c8fe631cabf05c
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rusty_xkcd
[INFO] [stdout] 
[INFO] [stdout] running 19 tests
[INFO] [stderr] error: process didn't exit successfully: `rustdoc --edition=2018 --test /opt/crater/workdir/src/lib.rs --crate-name rusty_xkcd -L dependency=/opt/crater/target/debug/deps -L native=/opt/crater/target/debug/build/backtrace-sys-46319fa5dea5f4c2/out -L dependency=/opt/crater/target/debug/deps --extern chrono=/opt/crater/target/debug/deps/libchrono-25f2df48a3b188cf.rlib --extern quick_error=/opt/crater/target/debug/deps/libquick_error-7b5d38789b0fbff0.rlib --extern rand=/opt/crater/target/debug/deps/librand-90f16bd48677b73c.rlib --extern reqwest=/opt/crater/target/debug/deps/libreqwest-0fe9d3abfbb432c6.rlib --extern rusty_xkcd=/opt/crater/target/debug/deps/librusty_xkcd-db6b840f252af8be.rlib --extern scraper=/opt/crater/target/debug/deps/libscraper-6fcb4c522703c350.rlib --extern serde_json=/opt/crater/target/debug/deps/libserde_json-2daade39ee632f9d.rlib` (signal: 9, SIGKILL: kill)
[INFO] running `"docker" "inspect" "76eb6ace3a69acec6054ed58b095ff79f375e9795a3a7574ee49f7a48367dc97"`
[INFO] running `"docker" "rm" "-f" "76eb6ace3a69acec6054ed58b095ff79f375e9795a3a7574ee49f7a48367dc97"`
[INFO] [stdout] 76eb6ace3a69acec6054ed58b095ff79f375e9795a3a7574ee49f7a48367dc97