[INFO] updating cached repository christian-blades-cb/google-banner-palette
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/christian-blades-cb/google-banner-palette
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/christian-blades-cb/google-banner-palette" "work/ex/beta-1.37-6/sources/1.36.0/gh/christian-blades-cb/google-banner-palette"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/christian-blades-cb/google-banner-palette'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/christian-blades-cb/google-banner-palette" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/christian-blades-cb/google-banner-palette"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/christian-blades-cb/google-banner-palette'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d3455aaa721c4746ed614543d27a67d69a45cd73
[INFO] sha for GitHub repo christian-blades-cb/google-banner-palette: d3455aaa721c4746ed614543d27a67d69a45cd73
[INFO] validating manifest of christian-blades-cb/google-banner-palette 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 christian-blades-cb/google-banner-palette 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 christian-blades-cb/google-banner-palette
[INFO] finished frobbing christian-blades-cb/google-banner-palette
[INFO] frobbed toml for christian-blades-cb/google-banner-palette written to work/ex/beta-1.37-6/sources/1.36.0/gh/christian-blades-cb/google-banner-palette/Cargo.toml
[INFO] started frobbing christian-blades-cb/google-banner-palette
[INFO] finished frobbing christian-blades-cb/google-banner-palette
[INFO] frobbed toml for christian-blades-cb/google-banner-palette written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/christian-blades-cb/google-banner-palette/Cargo.toml
[INFO] crate christian-blades-cb/google-banner-palette 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] [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] testing christian-blades-cb/google-banner-palette against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/christian-blades-cb/google-banner-palette:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] c96a924b5136bbf3281cd5fae468a2847ad16e2d7ea7d25232ebf2b17a085f2e
[INFO] running `"docker" "start" "-a" "c96a924b5136bbf3281cd5fae468a2847ad16e2d7ea7d25232ebf2b17a085f2e"`
[INFO] [stderr]    Compiling nodrop v0.1.12
[INFO] [stderr]    Compiling utf-8 v0.7.2
[INFO] [stderr]    Compiling string v0.1.0
[INFO] [stderr]    Compiling exoquant v0.2.0
[INFO] [stderr]    Compiling ring v0.13.0-alpha5
[INFO] [stderr]    Compiling dtoa-short v0.3.2
[INFO] [stderr]    Compiling mio v0.6.14
[INFO] [stderr]    Compiling want v0.0.5
[INFO] [stderr]    Compiling http v0.1.7
[INFO] [stderr]    Compiling syn v0.14.2
[INFO] [stderr]    Compiling string_cache_codegen v0.4.1
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stderr]    Compiling serde_json v1.0.22
[INFO] [stderr]    Compiling selectors v0.19.0
[INFO] [stderr]    Compiling arrayvec v0.4.7
[INFO] [stderr]    Compiling servo_arc v0.1.1
[INFO] [stderr]    Compiling tendril v0.4.0
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]    Compiling tokio-reactor v0.1.2
[INFO] [stderr]    Compiling png v0.12.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.4.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling tokio-udp v0.1.1
[INFO] [stderr]    Compiling tokio-tcp v0.1.0
[INFO] [stderr]    Compiling crossbeam-deque v0.3.1
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling h2 v0.1.10
[INFO] [stderr]    Compiling tokio-threadpool v0.1.4
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]    Compiling rayon v1.0.1
[INFO] [stderr]    Compiling sct v0.3.0
[INFO] [stderr]    Compiling webpki v0.18.0-alpha4
[INFO] [stderr]    Compiling tokio-fs v0.1.1
[INFO] [stderr]    Compiling ct-logs v0.3.0
[INFO] [stderr]    Compiling tokio v0.1.7
[INFO] [stderr]    Compiling rustls v0.12.0
[INFO] [stderr]    Compiling webpki-roots v0.14.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling tokio-core v0.1.17
[INFO] [stderr]    Compiling serde_derive v1.0.69
[INFO] [stderr]    Compiling cssparser-macros v0.3.4
[INFO] [stderr]    Compiling num-derive v0.2.2
[INFO] [stderr]    Compiling hyper v0.12.5
[INFO] [stderr]    Compiling image v0.19.0
[INFO] [stderr]    Compiling cssparser v0.23.10
[INFO] [stderr]    Compiling html5ever v0.22.3
[INFO] [stderr]    Compiling tokio-rustls v0.6.0
[INFO] [stderr]    Compiling hyper-rustls v0.13.0
[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-0.23.10/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]     = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr]    Compiling markup5ever v0.7.2
[INFO] [stderr]    Compiling kuchiki v0.7.0
[INFO] [stderr]    Compiling google-banner-palette v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 54s
[INFO] running `"docker" "inspect" "c96a924b5136bbf3281cd5fae468a2847ad16e2d7ea7d25232ebf2b17a085f2e"`
[INFO] running `"docker" "rm" "-f" "c96a924b5136bbf3281cd5fae468a2847ad16e2d7ea7d25232ebf2b17a085f2e"`
[INFO] [stdout] c96a924b5136bbf3281cd5fae468a2847ad16e2d7ea7d25232ebf2b17a085f2e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/christian-blades-cb/google-banner-palette:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] a4be0f983da4d627d17f7c67d5c9568d7bd8a005f656ea73b6bba682059ade3b
[INFO] running `"docker" "start" "-a" "a4be0f983da4d627d17f7c67d5c9568d7bd8a005f656ea73b6bba682059ade3b"`
[INFO] [stderr]    Compiling google-banner-palette v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.38s
[INFO] running `"docker" "inspect" "a4be0f983da4d627d17f7c67d5c9568d7bd8a005f656ea73b6bba682059ade3b"`
[INFO] running `"docker" "rm" "-f" "a4be0f983da4d627d17f7c67d5c9568d7bd8a005f656ea73b6bba682059ade3b"`
[INFO] [stdout] a4be0f983da4d627d17f7c67d5c9568d7bd8a005f656ea73b6bba682059ade3b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/christian-blades-cb/google-banner-palette:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] fd418e23bae5016c23531be87d46202779843df1ba6fb9808aa25f0555845917
[INFO] running `"docker" "start" "-a" "fd418e23bae5016c23531be87d46202779843df1ba6fb9808aa25f0555845917"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/google_banner_palette-db873c216dc25c5a
[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" "fd418e23bae5016c23531be87d46202779843df1ba6fb9808aa25f0555845917"`
[INFO] running `"docker" "rm" "-f" "fd418e23bae5016c23531be87d46202779843df1ba6fb9808aa25f0555845917"`
[INFO] [stdout] fd418e23bae5016c23531be87d46202779843df1ba6fb9808aa25f0555845917