[INFO] updating cached repository soyuka/read-metadata [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/soyuka/read-metadata [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/soyuka/read-metadata" "work/ex/beta-1.38-1/sources/1.37.0/gh/soyuka/read-metadata"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/soyuka/read-metadata'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/soyuka/read-metadata" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/soyuka/read-metadata"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/soyuka/read-metadata'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 081328bab25b0a195b1905b28c8ea6ea342ddc0d [INFO] sha for GitHub repo soyuka/read-metadata: 081328bab25b0a195b1905b28c8ea6ea342ddc0d [INFO] validating manifest of soyuka/read-metadata 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 soyuka/read-metadata 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 soyuka/read-metadata [INFO] finished frobbing soyuka/read-metadata [INFO] frobbed toml for soyuka/read-metadata written to work/ex/beta-1.38-1/sources/1.37.0/gh/soyuka/read-metadata/Cargo.toml [INFO] started frobbing soyuka/read-metadata [INFO] finished frobbing soyuka/read-metadata [INFO] frobbed toml for soyuka/read-metadata written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/soyuka/read-metadata/Cargo.toml [INFO] crate soyuka/read-metadata 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] [stderr] Blocking waiting for file lock on package cache [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing soyuka/read-metadata 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-0/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/soyuka/read-metadata:/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] 6997adf9e9dd3d585fb12e869fe2f91a367b823c8749ab5441889a21ad78104d [INFO] running `"docker" "start" "-a" "6997adf9e9dd3d585fb12e869fe2f91a367b823c8749ab5441889a21ad78104d"` [INFO] [stderr] Compiling nodrop v0.1.12 [INFO] [stderr] Compiling ego-tree v0.5.0 [INFO] [stderr] Compiling openssl-sys v0.9.33 [INFO] [stderr] Compiling dtoa-short v0.3.2 [INFO] [stderr] Compiling mio v0.6.14 [INFO] [stderr] Compiling log v0.3.9 [INFO] [stderr] Compiling want v0.0.4 [INFO] [stderr] Compiling uuid v0.6.5 [INFO] [stderr] Compiling new_debug_unreachable v1.0.1 [INFO] [stderr] Compiling tokio-io v0.1.7 [INFO] [stderr] Compiling arrayvec v0.4.7 [INFO] [stderr] Compiling servo_arc v0.1.1 [INFO] [stderr] Compiling syn v0.13.11 [INFO] [stderr] Compiling futf v0.1.4 [INFO] [stderr] Compiling url v1.7.0 [INFO] [stderr] Compiling regex v1.0.0 [INFO] [stderr] Compiling crossbeam-epoch v0.4.3 [INFO] [stderr] Compiling libflate v0.1.15 [INFO] [stderr] Compiling tendril v0.4.0 [INFO] [stderr] Compiling tokio-codec v0.1.0 [INFO] [stderr] Compiling string_cache_codegen v0.4.1 [INFO] [stderr] warning[E0713]: borrow may still be in use when destructor runs [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/url-1.7.0/src/form_urlencoded.rs:261:40 [INFO] [stderr] | [INFO] [stderr] 259 | impl<'a> Target for ::UrlQuery<'a> { [INFO] [stderr] | -- lifetime `'a` defined here [INFO] [stderr] 260 | fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization } [INFO] [stderr] 261 | fn finish(self) -> &'a mut ::Url { self.url } [INFO] [stderr] | ^^^^^^^^ - here, drop of `self` needs exclusive access to `*self.url`, because the type `UrlQuery<'_>` implements the `Drop` trait [INFO] [stderr] | | [INFO] [stderr] | returning this value requires that `*self.url` is borrowed for `'a` [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 crossbeam-deque v0.3.1 [INFO] [stderr] Compiling tokio-reactor v0.1.2 [INFO] [stderr] Compiling mime_guess v2.0.0-alpha.4 [INFO] [stderr] Compiling selectors v0.19.0 [INFO] [stderr] Compiling serde_urlencoded v0.5.2 [INFO] [stderr] Compiling openssl v0.9.24 [INFO] [stderr] Compiling tokio-threadpool v0.1.4 [INFO] [stderr] Compiling tokio-udp v0.1.1 [INFO] [stderr] Compiling tokio-tcp v0.1.0 [INFO] [stderr] Compiling env_logger v0.5.10 [INFO] [stderr] Compiling string_cache v0.7.3 [INFO] [stderr] Compiling markup5ever v0.7.2 [INFO] [stderr] Compiling tokio-fs v0.1.1 [INFO] [stderr] Compiling tokio v0.1.7 [INFO] [stderr] Compiling native-tls v0.1.5 [INFO] [stderr] Compiling tokio-core v0.1.17 [INFO] [stderr] Compiling tokio-proto v0.1.1 [INFO] [stderr] Compiling tokio-tls v0.1.4 [INFO] [stderr] Compiling cssparser v0.23.10 [INFO] [stderr] Compiling html5ever v0.22.3 [INFO] [stderr] Compiling cssparser-macros v0.3.3 [INFO] [stderr] Compiling hyper v0.11.27 [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-0.23.10/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] Compiling hyper-tls v0.1.3 [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" "6997adf9e9dd3d585fb12e869fe2f91a367b823c8749ab5441889a21ad78104d"` [INFO] running `"docker" "rm" "-f" "6997adf9e9dd3d585fb12e869fe2f91a367b823c8749ab5441889a21ad78104d"` [INFO] [stdout] 6997adf9e9dd3d585fb12e869fe2f91a367b823c8749ab5441889a21ad78104d