[INFO] cloning repository https://github.com/sleepy771/ttl_test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sleepy771/ttl_test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsleepy771%2Fttl_test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsleepy771%2Fttl_test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6bbb2baedc1798d401e995357d33e246b7865cb6
[INFO] documenting sleepy771/ttl_test against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsleepy771%2Fttl_test" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sleepy771/ttl_test on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sleepy771/ttl_test
[INFO] finished tweaking git repo https://github.com/sleepy771/ttl_test
[INFO] tweaked toml for git repo https://github.com/sleepy771/ttl_test written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/sleepy771/ttl_test already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 96ad4e94474239fde44e2f25c6558f0715462b1ec346e2fc2f544dd7b21b6023
[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" "96ad4e94474239fde44e2f25c6558f0715462b1ec346e2fc2f544dd7b21b6023", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "96ad4e94474239fde44e2f25c6558f0715462b1ec346e2fc2f544dd7b21b6023", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96ad4e94474239fde44e2f25c6558f0715462b1ec346e2fc2f544dd7b21b6023", kill_on_drop: false }`
[INFO] [stdout] 96ad4e94474239fde44e2f25c6558f0715462b1ec346e2fc2f544dd7b21b6023
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca509785eac171329ae25326473acc1d75fde94da38c13fc8f23850d130f4076
[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" "ca509785eac171329ae25326473acc1d75fde94da38c13fc8f23850d130f4076", kill_on_drop: false }`
[INFO] [stderr]     Checking pnet_base v0.20.0
[INFO] [stderr]     Checking ipnetwork v0.12.7
[INFO] [stderr]    Compiling pnet v0.20.0
[INFO] [stderr]     Checking serde v1.0.23
[INFO] [stderr]     Checking num_cpus v1.7.0
[INFO] [stderr]     Checking pnet_sys v0.20.0
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling openssl-sys v0.9.23
[INFO] [stderr]    Compiling syntex_errors v0.42.0
[INFO] [stderr]    Compiling thread_local v0.3.4
[INFO] [stderr]     Checking url v1.6.0
[INFO] [stderr]    Compiling serde_derive v1.0.23
[INFO] [stderr]     Checking regex v0.2.3
[INFO] [stderr]     Checking pnet_macros_support v0.20.0
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[INFO] [stderr]     Checking pnet_datalink v0.20.0
[INFO] [stderr]    Compiling syntex_syntax v0.42.0
[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-1.6.0/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" "ca509785eac171329ae25326473acc1d75fde94da38c13fc8f23850d130f4076", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca509785eac171329ae25326473acc1d75fde94da38c13fc8f23850d130f4076", kill_on_drop: false }`
[INFO] [stdout] ca509785eac171329ae25326473acc1d75fde94da38c13fc8f23850d130f4076
