[INFO] cloning repository https://github.com/maufl/lbsync
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/maufl/lbsync" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaufl%2Flbsync", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaufl%2Flbsync'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d1f2773c209d5345a81c829658681d36e6f61d12
[INFO] documenting maufl/lbsync 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%2Fmaufl%2Flbsync" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/maufl/lbsync 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/maufl/lbsync
[INFO] finished tweaking git repo https://github.com/maufl/lbsync
[INFO] tweaked toml for git repo https://github.com/maufl/lbsync written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/maufl/lbsync 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-timer v0.2.1
[INFO] [stderr]   Downloaded tokio v0.1.5
[INFO] [stderr]   Downloaded hyper-tls v0.1.3
[INFO] [stderr]   Downloaded tokio-threadpool v0.1.2
[INFO] [stderr]   Downloaded hyper v0.11.25
[INFO] [stderr]   Downloaded ego-tree v0.3.0
[INFO] [stderr]   Downloaded selectors v0.19.0
[INFO] [stderr]   Downloaded proc-macro2 v0.3.6
[INFO] [stderr]   Downloaded procedural-masquerade v0.1.5
[INFO] [stderr]   Downloaded cssparser-macros v0.3.2
[INFO] [stderr]   Downloaded scraper v0.6.0
[INFO] [stderr]   Downloaded cssparser v0.23.4
[INFO] [stderr]   Downloaded openssl-sys v0.9.28
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stdout] 1aa63a4f131ea6e8b309144351dfedbb429348409dcdb88a1f7834acd750688d
[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" "1aa63a4f131ea6e8b309144351dfedbb429348409dcdb88a1f7834acd750688d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1aa63a4f131ea6e8b309144351dfedbb429348409dcdb88a1f7834acd750688d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1aa63a4f131ea6e8b309144351dfedbb429348409dcdb88a1f7834acd750688d", kill_on_drop: false }`
[INFO] [stdout] 1aa63a4f131ea6e8b309144351dfedbb429348409dcdb88a1f7834acd750688d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 8b51688cc71b6d7898dbe80e88a9d984305e64d60a2870a3c037bf15cf598c95
[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" "8b51688cc71b6d7898dbe80e88a9d984305e64d60a2870a3c037bf15cf598c95", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]    Compiling cc v1.0.9
[INFO] [stderr]    Compiling openssl v0.9.24
[INFO] [stderr]     Checking scoped-tls v0.1.1
[INFO] [stderr]    Compiling num-traits v0.2.2
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]     Checking utf-8 v0.7.2
[INFO] [stderr]     Checking string_cache_shared v0.3.0
[INFO] [stderr]    Compiling procedural-masquerade v0.1.5
[INFO] [stderr]     Checking stable_deref_trait v1.0.0
[INFO] [stderr]     Checking ego-tree v0.3.0
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking net2 v0.2.32
[INFO] [stderr]     Checking crossbeam-utils v0.3.2
[INFO] [stderr]    Compiling proc-macro2 v0.3.6
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking encoding_rs v0.7.2
[INFO] [stderr]     Checking dtoa-short v0.3.2
[INFO] [stderr]    Compiling crc v1.7.0
[INFO] [stderr]     Checking serde_json v1.0.13
[INFO] [stderr]     Checking num-integer v0.1.36
[INFO] [stderr]     Checking base64 v0.9.0
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]     Checking tokio-timer v0.2.1
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]     Checking servo_arc v0.1.1
[INFO] [stderr]     Checking debug_unreachable v0.1.1
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking bytes v0.4.6
[INFO] [stderr]     Checking mio v0.6.14
[INFO] [stderr]     Checking chrono v0.4.2
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]     Checking futf v0.1.3
[INFO] [stderr]     Checking url v1.7.0
[INFO] [stderr]    Compiling quote v0.5.1
[INFO] [stderr]     Checking crossbeam-epoch v0.4.1
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]     Checking tendril v0.4.0
[INFO] [stderr]     Checking tokio-io v0.1.6
[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]     Checking uuid v0.6.5
[INFO] [stderr]     Checking libflate v0.1.14
[INFO] [stderr]     Checking crossbeam-deque v0.3.0
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.4
[INFO] [stderr]    Compiling selectors v0.19.0
[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] [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" "8b51688cc71b6d7898dbe80e88a9d984305e64d60a2870a3c037bf15cf598c95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b51688cc71b6d7898dbe80e88a9d984305e64d60a2870a3c037bf15cf598c95", kill_on_drop: false }`
[INFO] [stdout] 8b51688cc71b6d7898dbe80e88a9d984305e64d60a2870a3c037bf15cf598c95