[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-1.38-1/sources/1.37.0/gh/christian-blades-cb/google-banner-palette"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/gh/christian-blades-cb/google-banner-palette"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/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 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of christian-blades-cb/google-banner-palette 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 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-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/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" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing christian-blades-cb/google-banner-palette against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 5d1a60c87cc094c58539b7b66734b6389d9acf19de22cf9249db5880c4cfe99f
[INFO] running `"docker" "start" "-a" "5d1a60c87cc094c58539b7b66734b6389d9acf19de22cf9249db5880c4cfe99f"`
[INFO] [stderr]    Compiling exoquant v0.2.0
[INFO] [stderr]    Compiling phf_shared v0.7.22
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling termion v1.5.1
[INFO] [stderr]    Compiling ring v0.13.0-alpha5
[INFO] [stderr]    Compiling crossbeam-epoch v0.4.3
[INFO] [stderr]    Compiling want v0.0.5
[INFO] [stderr]    Compiling syn v0.14.2
[INFO] [stderr]    Compiling phf_generator v0.7.22
[INFO] [stderr]    Compiling phf v0.7.22
[INFO] [stderr]    Compiling h2 v0.1.10
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling string_cache_codegen v0.4.1
[INFO] [stderr]    Compiling phf_codegen v0.7.22
[INFO] [stderr]    Compiling png v0.12.0
[INFO] [stderr]    Compiling crossbeam-deque v0.3.1
[INFO] [stderr]    Compiling selectors v0.19.0
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling tokio-threadpool v0.1.4
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]    Compiling rayon v1.0.1
[INFO] [stderr]    Compiling tokio-fs v0.1.1
[INFO] [stderr]    Compiling tokio v0.1.7
[INFO] [stderr]    Compiling sct v0.3.0
[INFO] [stderr]    Compiling webpki v0.18.0-alpha4
[INFO] [stderr]    Compiling ct-logs v0.3.0
[INFO] [stderr]    Compiling tokio-core v0.1.17
[INFO] [stderr]    Compiling hyper v0.12.5
[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 serde_derive v1.0.69
[INFO] [stderr]    Compiling cssparser-macros v0.3.4
[INFO] [stderr]    Compiling num-derive v0.2.2
[INFO] [stderr]    Compiling image v0.19.0
[INFO] [stderr]    Compiling cssparser v0.23.10
[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 tokio-rustls v0.6.0
[INFO] [stderr]    Compiling hyper-rustls v0.13.0
[INFO] [stderr]    Compiling markup5ever v0.7.2
[INFO] [stderr]    Compiling html5ever v0.22.3
[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 48s
[INFO] running `"docker" "inspect" "5d1a60c87cc094c58539b7b66734b6389d9acf19de22cf9249db5880c4cfe99f"`
[INFO] running `"docker" "rm" "-f" "5d1a60c87cc094c58539b7b66734b6389d9acf19de22cf9249db5880c4cfe99f"`
[INFO] [stdout] 5d1a60c87cc094c58539b7b66734b6389d9acf19de22cf9249db5880c4cfe99f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 8fdbc0ad6164e8ad4904933a0a119e59de0b6d54713d5a0ff51a6b85c5f28b63
[INFO] running `"docker" "start" "-a" "8fdbc0ad6164e8ad4904933a0a119e59de0b6d54713d5a0ff51a6b85c5f28b63"`
[INFO] [stderr]    Compiling google-banner-palette v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.46s
[INFO] running `"docker" "inspect" "8fdbc0ad6164e8ad4904933a0a119e59de0b6d54713d5a0ff51a6b85c5f28b63"`
[INFO] running `"docker" "rm" "-f" "8fdbc0ad6164e8ad4904933a0a119e59de0b6d54713d5a0ff51a6b85c5f28b63"`
[INFO] [stdout] 8fdbc0ad6164e8ad4904933a0a119e59de0b6d54713d5a0ff51a6b85c5f28b63
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] f2ced4dab4077af1a70f635aee2955a5674ecb7f622ac9af693721d5baa71a74
[INFO] running `"docker" "start" "-a" "f2ced4dab4077af1a70f635aee2955a5674ecb7f622ac9af693721d5baa71a74"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/google_banner_palette-30537441b7bf7342
[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" "f2ced4dab4077af1a70f635aee2955a5674ecb7f622ac9af693721d5baa71a74"`
[INFO] running `"docker" "rm" "-f" "f2ced4dab4077af1a70f635aee2955a5674ecb7f622ac9af693721d5baa71a74"`
[INFO] [stdout] f2ced4dab4077af1a70f635aee2955a5674ecb7f622ac9af693721d5baa71a74