[INFO] updating cached repository pbzweihander/ircbot-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/pbzweihander/ircbot-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/pbzweihander/ircbot-rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/pbzweihander/ircbot-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/pbzweihander/ircbot-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/pbzweihander/ircbot-rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/pbzweihander/ircbot-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/pbzweihander/ircbot-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e34898d2fbd2b8e007b45a288838581d335dc541
[INFO] sha for GitHub repo pbzweihander/ircbot-rs: e34898d2fbd2b8e007b45a288838581d335dc541
[INFO] validating manifest of pbzweihander/ircbot-rs 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 pbzweihander/ircbot-rs 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 pbzweihander/ircbot-rs
[INFO] finished frobbing pbzweihander/ircbot-rs
[INFO] frobbed toml for pbzweihander/ircbot-rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/pbzweihander/ircbot-rs/Cargo.toml
[INFO] started frobbing pbzweihander/ircbot-rs
[INFO] finished frobbing pbzweihander/ircbot-rs
[INFO] frobbed toml for pbzweihander/ircbot-rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/pbzweihander/ircbot-rs/Cargo.toml
[INFO] crate pbzweihander/ircbot-rs 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 pbzweihander/ircbot-rs 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-1/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/pbzweihander/ircbot-rs:/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] 7399c8346305b70757ee33704fd474c316afcbce86c2ba648eb6a0fe006cc67f
[INFO] running `"docker" "start" "-a" "7399c8346305b70757ee33704fd474c316afcbce86c2ba648eb6a0fe006cc67f"`
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]    Compiling cc v1.0.32
[INFO] [stderr]    Compiling mac v0.1.1
[INFO] [stderr]    Compiling utf-8 v0.7.5
[INFO] [stderr]    Compiling procedural-masquerade v0.1.6
[INFO] [stderr]    Compiling thin-slice v0.1.1
[INFO] [stderr]    Compiling ego-tree v0.6.0
[INFO] [stderr]    Compiling servo_arc v0.1.1
[INFO] [stderr]    Compiling dtoa-short v0.3.2
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling futf v0.1.4
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling string_cache_codegen v0.4.2
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling tokio-mockstream v1.1.0
[INFO] [stderr]    Compiling h2 v0.1.17
[INFO] [stderr]    Compiling selectors v0.20.0
[INFO] [stderr]    Compiling tendril v0.4.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.1
[INFO] [stderr]    Compiling tokio-udp v0.1.3
[INFO] [stderr]    Compiling tokio-uds v0.2.5
[INFO] [stderr]    Compiling crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]    Compiling tokio-threadpool v0.1.13
[INFO] [stderr]    Compiling openssl-sys v0.9.43
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling miniz_oxide_c_api v0.2.1
[INFO] [stderr]    Compiling tokio-fs v0.1.6
[INFO] [stderr]    Compiling tokio v0.1.18
[INFO] [stderr]    Compiling flate2 v1.0.7
[INFO] [stderr]    Compiling openssl v0.10.20
[INFO] [stderr]    Compiling native-tls v0.2.2
[INFO] [stderr]    Compiling backtrace v0.3.14
[INFO] [stderr]    Compiling hyper v0.12.25
[INFO] [stderr]    Compiling tokio-core v0.1.17
[INFO] [stderr]    Compiling cssparser v0.24.1
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling tokio-tls v0.2.1
[INFO] [stderr]    Compiling hyper-tls v0.3.2
[INFO] [stderr]    Compiling reqwest v0.9.13
[INFO] [stderr]    Compiling serde_derive v1.0.89
[INFO] [stderr]    Compiling html5ever v0.22.5
[INFO] [stderr]    Compiling cssparser-macros v0.3.5
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling failure v0.1.5
[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" "7399c8346305b70757ee33704fd474c316afcbce86c2ba648eb6a0fe006cc67f"`
[INFO] running `"docker" "rm" "-f" "7399c8346305b70757ee33704fd474c316afcbce86c2ba648eb6a0fe006cc67f"`
[INFO] [stdout] 7399c8346305b70757ee33704fd474c316afcbce86c2ba648eb6a0fe006cc67f