[INFO] cloning repository https://github.com/khodzha/percephash
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/khodzha/percephash" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkhodzha%2Fpercephash", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkhodzha%2Fpercephash'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fe49e9e0e8fc595aebc4fa0542c4ddf4ae1239c2
[INFO] documenting khodzha/percephash against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkhodzha%2Fpercephash" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/khodzha/percephash on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/khodzha/percephash
[INFO] finished tweaking git repo https://github.com/khodzha/percephash
[INFO] tweaked toml for git repo https://github.com/khodzha/percephash written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/khodzha/percephash already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.46.0" "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] 3467f0894a9141ae8483406eedf5beaf767e9267f162f408172448dfedc0a9f6
[INFO] running `Command { std: "docker" "start" "-a" "3467f0894a9141ae8483406eedf5beaf767e9267f162f408172448dfedc0a9f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3467f0894a9141ae8483406eedf5beaf767e9267f162f408172448dfedc0a9f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3467f0894a9141ae8483406eedf5beaf767e9267f162f408172448dfedc0a9f6", kill_on_drop: false }`
[INFO] [stdout] 3467f0894a9141ae8483406eedf5beaf767e9267f162f408172448dfedc0a9f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d84f61f35b13b2ca9a7fd11da9122bf51a7fcdbb51802bcdd480463beec53ca
[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" "4d84f61f35b13b2ca9a7fd11da9122bf51a7fcdbb51802bcdd480463beec53ca", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.23
[INFO] [stderr]    Compiling version_check v0.1.3
[INFO] [stderr]    Compiling siphasher v0.2.2
[INFO] [stderr]    Compiling rayon-core v1.0.2
[INFO] [stderr]     Checking deque v0.3.2
[INFO] [stderr]     Checking adler32 v1.0.0
[INFO] [stderr]     Checking httparse v1.2.3
[INFO] [stderr]    Compiling gcc v0.3.50
[INFO] [stderr]     Checking color_quant v1.0.0
[INFO] [stderr]     Checking safemem v0.1.1
[INFO] [stderr]     Checking scoped_threadpool v0.1.7
[INFO] [stderr]     Checking chunked_transfer v0.3.1
[INFO] [stderr]     Checking ascii v0.7.1
[INFO] [stderr]     Checking bit-vec v0.4.4
[INFO] [stderr]     Checking serde v1.0.8
[INFO] [stderr]     Checking conduit-mime-types v0.7.3
[INFO] [stderr]     Checking num-integer v0.1.34
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking base64 v0.6.0
[INFO] [stderr]     Checking error v0.1.9
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking deflate v0.7.11
[INFO] [stderr]     Checking idna v0.1.4
[INFO] [stderr]     Checking gif v0.9.1
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]     Checking num-iter v0.1.33
[INFO] [stderr]     Checking num-rational v0.1.36
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]     Checking num_cpus v1.5.1
[INFO] [stderr]     Checking time v0.1.37
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking memchr v2.0.0
[INFO] [stderr]     Checking num v0.1.37
[INFO] [stderr]     Checking buf_redux v0.6.1
[INFO] [stderr]     Checking twoway v0.1.7
[INFO] [stderr]     Checking url v1.6.0
[INFO] [stderr]     Checking png v0.7.0
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling phf_shared v0.7.21
[INFO] [stderr]     Checking chrono v0.2.25
[INFO] [stderr]     Checking uuid v0.1.18
[INFO] [stderr]     Checking tempdir v0.3.5
[INFO] [stderr]     Checking phf v0.7.21
[INFO] [stderr]     Checking url v0.2.38
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]     Checking rayon v0.7.1
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]    Compiling mime_guess v1.8.2
[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]     Checking tiny_http v0.5.8
[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" "4d84f61f35b13b2ca9a7fd11da9122bf51a7fcdbb51802bcdd480463beec53ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d84f61f35b13b2ca9a7fd11da9122bf51a7fcdbb51802bcdd480463beec53ca", kill_on_drop: false }`
[INFO] [stdout] 4d84f61f35b13b2ca9a7fd11da9122bf51a7fcdbb51802bcdd480463beec53ca