[INFO] updating cached repository https://github.com/brollb/rosetta-code-scraper
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e0e7eae19d40e3f870ab7f94a2f7afd1b5b21d6c
[INFO] testing brollb/rosetta-code-scraper against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrollb%2Frosetta-code-scraper" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/brollb/rosetta-code-scraper on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/brollb/rosetta-code-scraper
[INFO] finished tweaking git repo https://github.com/brollb/rosetta-code-scraper
[INFO] tweaked toml for git repo https://github.com/brollb/rosetta-code-scraper written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/brollb/rosetta-code-scraper already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stdout] ee87d68ac14971066f22e1e3d395eabcf4441f598f522662bebf6e5d1d145e86
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "ee87d68ac14971066f22e1e3d395eabcf4441f598f522662bebf6e5d1d145e86"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling nodrop v0.1.12
[INFO] [stderr]    Compiling serde v1.0.37
[INFO] [stderr]    Compiling cc v1.0.9
[INFO] [stderr]    Compiling num-traits v0.2.2
[INFO] [stderr]    Compiling scoped-tls v0.1.1
[INFO] [stderr]    Compiling build_const v0.2.0
[INFO] [stderr]    Compiling utf-8 v0.7.2
[INFO] [stderr]    Compiling procedural-masquerade v0.1.5
[INFO] [stderr]    Compiling stable_deref_trait v1.0.0
[INFO] [stderr]    Compiling smallvec v0.6.0
[INFO] [stderr]    Compiling adler32 v1.0.2
[INFO] [stderr]    Compiling ego-tree v0.3.0
[INFO] [stderr]    Compiling dtoa-short v0.3.2
[INFO] [stderr]    Compiling proc-macro2 v0.3.5
[INFO] [stderr]    Compiling net2 v0.2.32
[INFO] [stderr]    Compiling crossbeam-utils v0.3.2
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling encoding_rs v0.7.2
[INFO] [stderr]    Compiling base64 v0.9.0
[INFO] [stderr]    Compiling bytes v0.4.6
[INFO] [stderr]    Compiling tokio-timer v0.2.1
[INFO] [stderr]    Compiling debug_unreachable v0.1.1
[INFO] [stderr]    Compiling arrayvec v0.4.7
[INFO] [stderr]    Compiling servo_arc v0.1.1
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling uuid v0.5.1
[INFO] [stderr]    Compiling url v1.7.0
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]    Compiling futf v0.1.3
[INFO] [stderr]    Compiling phf_shared v0.7.21
[INFO] [stderr]    Compiling crc v1.7.0
[INFO] [stderr]    Compiling mio v0.6.14
[INFO] [stderr]    Compiling tendril v0.4.0
[INFO] [stderr]    Compiling quote v0.5.1
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]    Compiling phf v0.7.21
[INFO] [stderr]    Compiling tokio-io v0.1.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.4.1
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]    Compiling string_cache_codegen v0.4.0
[INFO] [stderr]    Compiling syn v0.13.1
[INFO] [stderr]    Compiling libflate v0.1.14
[INFO] [stderr]    Compiling selectors v0.19.0
[INFO] [stderr] error[E0713]: borrow may still be in use when destructor runs
[INFO] [stderr]    --> /opt/rustwide/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]    Compiling mime_guess v2.0.0-alpha.4
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0713`.
[INFO] [stderr] error: could not compile `url`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "ee87d68ac14971066f22e1e3d395eabcf4441f598f522662bebf6e5d1d145e86"`
[INFO] running `"docker" "rm" "-f" "ee87d68ac14971066f22e1e3d395eabcf4441f598f522662bebf6e5d1d145e86"`
[INFO] [stdout] ee87d68ac14971066f22e1e3d395eabcf4441f598f522662bebf6e5d1d145e86