[INFO] updating cached repository LukasKalbertodt/grakawa
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/LukasKalbertodt/grakawa
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/LukasKalbertodt/grakawa" "work/ex/beta-1.37-6/sources/1.36.0/gh/LukasKalbertodt/grakawa"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/LukasKalbertodt/grakawa'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/LukasKalbertodt/grakawa" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/LukasKalbertodt/grakawa"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/LukasKalbertodt/grakawa'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4e458c5c537e23310fd52923ae64f7c9d23dee2b
[INFO] sha for GitHub repo LukasKalbertodt/grakawa: 4e458c5c537e23310fd52923ae64f7c9d23dee2b
[INFO] validating manifest of LukasKalbertodt/grakawa 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 LukasKalbertodt/grakawa 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 LukasKalbertodt/grakawa
[INFO] finished frobbing LukasKalbertodt/grakawa
[INFO] frobbed toml for LukasKalbertodt/grakawa written to work/ex/beta-1.37-6/sources/1.36.0/gh/LukasKalbertodt/grakawa/Cargo.toml
[INFO] started frobbing LukasKalbertodt/grakawa
[INFO] finished frobbing LukasKalbertodt/grakawa
[INFO] frobbed toml for LukasKalbertodt/grakawa written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/LukasKalbertodt/grakawa/Cargo.toml
[INFO] crate LukasKalbertodt/grakawa already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing LukasKalbertodt/grakawa 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-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/LukasKalbertodt/grakawa:/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] 4692979de0962d9e72512bec66adf4d09269a43116757fc65d97bb0b29b50808
[INFO] running `"docker" "start" "-a" "4692979de0962d9e72512bec66adf4d09269a43116757fc65d97bb0b29b50808"`
[INFO] [stderr]    Compiling ego-tree v0.3.0
[INFO] [stderr]    Compiling arrayvec v0.4.7
[INFO] [stderr]    Compiling openssl-sys v0.9.28
[INFO] [stderr]    Compiling dtoa-short v0.3.2
[INFO] [stderr]    Compiling servo_arc v0.1.1
[INFO] [stderr]    Compiling chrono v0.4.2
[INFO] [stderr]    Compiling clap v2.31.2
[INFO] [stderr]    Compiling tokio-io v0.1.6
[INFO] [stderr]    Compiling syn v0.13.1
[INFO] [stderr]    Compiling env_logger v0.5.6
[INFO] [stderr]    Compiling libflate v0.1.14
[INFO] [stderr]    Compiling serde_urlencoded v0.5.1
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]    Compiling crossbeam-epoch v0.4.1
[INFO] [stderr]    Compiling tokio-reactor v0.1.1
[INFO] [stderr]    Compiling failure v0.1.1
[INFO] [stderr]    Compiling string_cache_codegen v0.4.1
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]    Compiling openssl v0.9.24
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.4
[INFO] [stderr]    Compiling selectors v0.19.0
[INFO] [stderr]    Compiling crossbeam-deque v0.3.0
[INFO] [stderr]    Compiling tokio-udp v0.1.0
[INFO] [stderr]    Compiling tokio-tcp v0.1.0
[INFO] [stderr]    Compiling tokio-threadpool v0.1.2
[INFO] [stderr]    Compiling string_cache v0.7.2
[INFO] [stderr]    Compiling tokio v0.1.5
[INFO] [stderr]    Compiling tokio-core v0.1.17
[INFO] [stderr]    Compiling native-tls v0.1.5
[INFO] [stderr]    Compiling tokio-proto v0.1.1
[INFO] [stderr]    Compiling tokio-tls v0.1.4
[INFO] [stderr]    Compiling serde_derive_internals v0.23.0
[INFO] [stderr]    Compiling cssparser v0.23.5
[INFO] [stderr]    Compiling html5ever v0.22.2
[INFO] [stderr]    Compiling cssparser-macros v0.3.3
[INFO] [stderr]    Compiling structopt-derive v0.2.7
[INFO] [stderr]    Compiling hyper v0.11.25
[INFO] [stderr]    Compiling structopt v0.2.7
[INFO] [stderr]    Compiling serde_derive v1.0.37
[INFO] [stderr]    Compiling hyper-tls v0.1.3
[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-0.23.5/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 reqwest v0.8.5
[INFO] [stderr]    Compiling markup5ever v0.7.2
[INFO] [stderr]    Compiling scraper v0.6.0
[INFO] [stderr]    Compiling grakawa v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/main.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 31s
[INFO] running `"docker" "inspect" "4692979de0962d9e72512bec66adf4d09269a43116757fc65d97bb0b29b50808"`
[INFO] running `"docker" "rm" "-f" "4692979de0962d9e72512bec66adf4d09269a43116757fc65d97bb0b29b50808"`
[INFO] [stdout] 4692979de0962d9e72512bec66adf4d09269a43116757fc65d97bb0b29b50808
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/LukasKalbertodt/grakawa:/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] 2a5847414e774ba7f8dc6e33e9a34a1701bfad53339c28f45311ec81c87f894e
[INFO] running `"docker" "start" "-a" "2a5847414e774ba7f8dc6e33e9a34a1701bfad53339c28f45311ec81c87f894e"`
[INFO] [stderr]    Compiling grakawa v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/main.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.01s
[INFO] running `"docker" "inspect" "2a5847414e774ba7f8dc6e33e9a34a1701bfad53339c28f45311ec81c87f894e"`
[INFO] running `"docker" "rm" "-f" "2a5847414e774ba7f8dc6e33e9a34a1701bfad53339c28f45311ec81c87f894e"`
[INFO] [stdout] 2a5847414e774ba7f8dc6e33e9a34a1701bfad53339c28f45311ec81c87f894e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/LukasKalbertodt/grakawa:/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] 4a9a0bbae1b524796b175e975aca9faee7c515e0121ef60e2afd303c91a9810b
[INFO] running `"docker" "start" "-a" "4a9a0bbae1b524796b175e975aca9faee7c515e0121ef60e2afd303c91a9810b"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/grakawa-1b122ed54203a8ad
[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] running `"docker" "inspect" "4a9a0bbae1b524796b175e975aca9faee7c515e0121ef60e2afd303c91a9810b"`
[INFO] running `"docker" "rm" "-f" "4a9a0bbae1b524796b175e975aca9faee7c515e0121ef60e2afd303c91a9810b"`
[INFO] [stdout] 4a9a0bbae1b524796b175e975aca9faee7c515e0121ef60e2afd303c91a9810b