[INFO] cloning repository https://github.com/jakobdalsgaard/simple-tower-mysql-service
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jakobdalsgaard/simple-tower-mysql-service" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakobdalsgaard%2Fsimple-tower-mysql-service", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakobdalsgaard%2Fsimple-tower-mysql-service'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6c40b35f4bf966023a49532b50d9f22e6949baf5
[INFO] documenting jakobdalsgaard/simple-tower-mysql-service against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakobdalsgaard%2Fsimple-tower-mysql-service" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jakobdalsgaard/simple-tower-mysql-service on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jakobdalsgaard/simple-tower-mysql-service
[INFO] finished tweaking git repo https://github.com/jakobdalsgaard/simple-tower-mysql-service
[INFO] tweaked toml for git repo https://github.com/jakobdalsgaard/simple-tower-mysql-service written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/jakobdalsgaard/simple-tower-mysql-service already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/tower-rs/tower-h2`
[INFO] [stderr]     Updating git repository `https://github.com/tower-rs/tower`
[INFO] [stderr]     Updating git repository `https://github.com/carllerche/tokio-connect`
[INFO] [stderr]     Updating git repository `https://github.com/carllerche/codegen`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mysql_common v0.5.0
[INFO] [stderr]   Downloaded chrono v0.4.3
[INFO] [stderr]   Downloaded petgraph v0.4.12
[INFO] [stderr]   Downloaded prost-derive v0.3.2
[INFO] [stderr]   Downloaded prost v0.3.2
[INFO] [stderr]   Downloaded prost-types v0.3.2
[INFO] [stderr]   Downloaded mysql_async v0.14.2
[INFO] [stderr]   Downloaded prost-build v0.3.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 39d91c4b7615a6b5979966e62466ed9c25864899de840c82446a9f0124894029
[INFO] running `Command { std: "docker" "start" "-a" "39d91c4b7615a6b5979966e62466ed9c25864899de840c82446a9f0124894029", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "39d91c4b7615a6b5979966e62466ed9c25864899de840c82446a9f0124894029", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39d91c4b7615a6b5979966e62466ed9c25864899de840c82446a9f0124894029", kill_on_drop: false }`
[INFO] [stdout] 39d91c4b7615a6b5979966e62466ed9c25864899de840c82446a9f0124894029
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c901ce3600ccc20b82278a5f7bf12fb5d5f4b158aeffd52f315ea53c36b04c04
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c901ce3600ccc20b82278a5f7bf12fb5d5f4b158aeffd52f315ea53c36b04c04", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.17
[INFO] [stderr]     Checking lazy_static v1.0.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.8
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling num-traits v0.2.4
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling remove_dir_all v0.5.1
[INFO] [stderr]    Compiling num-integer v0.1.38
[INFO] [stderr]    Compiling termcolor v0.3.6
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling serde v1.0.66
[INFO] [stderr]    Compiling prost-build v0.3.2
[INFO] [stderr]    Compiling indexmap v1.0.1
[INFO] [stderr]    Compiling multimap v0.4.0
[INFO] [stderr]     Checking smallvec v0.4.4
[INFO] [stderr]     Checking uuid v0.5.1
[INFO] [stderr]     Checking sha1 v0.2.0
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking atty v0.2.10
[INFO] [stderr]     Checking log v0.4.2
[INFO] [stderr]     Checking tokio-executor v0.1.2
[INFO] [stderr]     Checking net2 v0.2.32
[INFO] [stderr]     Checking tower-service v0.1.0 (https://github.com/tower-rs/tower#20fb04e3)
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]    Compiling itertools v0.7.8
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]    Compiling petgraph v0.4.12
[INFO] [stderr]     Checking bytes v0.4.8
[INFO] [stderr]     Checking crossbeam-epoch v0.4.1
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking tokio-timer v0.2.4
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]    Compiling codegen v0.1.0 (https://github.com/carllerche/codegen#9b2f8185)
[INFO] [stderr]     Checking mio v0.6.14
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]     Checking url v1.7.0
[INFO] [stderr]    Compiling env_logger v0.5.10
[INFO] [stderr]     Checking crossbeam-deque v0.3.1
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking tokio-io v0.1.6
[INFO] [stderr]     Checking http v0.1.5
[INFO] [stderr]     Checking prost v0.3.2
[INFO] [stderr]     Checking tokio-threadpool v0.1.4
[INFO] [stdout] error[E0713]: borrow may still be in use when destructor runs
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/url-1.7.0/src/form_urlencoded.rs:261:40
[INFO] [stdout]     |
[INFO] [stdout] 259 | impl<'a> Target for ::UrlQuery<'a> {
[INFO] [stdout]     |      -- lifetime `'a` defined here
[INFO] [stdout] 260 |     fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization }
[INFO] [stdout] 261 |     fn finish(self) -> &'a mut ::Url { self.url }
[INFO] [stdout]     |                                        ^^^^^^^^ - here, drop of `self` needs exclusive access to `*self.url`, because the type `UrlQuery<'_>` implements the `Drop` trait
[INFO] [stdout]     |                                        |
[INFO] [stdout]     |                                        returning this value requires that `*self.url` is borrowed for `'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0713`.
[INFO] [stdout] 
[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 `Command { std: "docker" "inspect" "c901ce3600ccc20b82278a5f7bf12fb5d5f4b158aeffd52f315ea53c36b04c04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c901ce3600ccc20b82278a5f7bf12fb5d5f4b158aeffd52f315ea53c36b04c04", kill_on_drop: false }`
[INFO] [stdout] c901ce3600ccc20b82278a5f7bf12fb5d5f4b158aeffd52f315ea53c36b04c04