[INFO] cloning repository https://github.com/Phrohdoh/rocket-query-params-example-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Phrohdoh/rocket-query-params-example-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPhrohdoh%2Frocket-query-params-example-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPhrohdoh%2Frocket-query-params-example-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 546ec8e108bf3fe3790f7265af7b2a2cb34c8147
[INFO] documenting Phrohdoh/rocket-query-params-example-rs 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%2FPhrohdoh%2Frocket-query-params-example-rs" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Phrohdoh/rocket-query-params-example-rs 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/Phrohdoh/rocket-query-params-example-rs
[INFO] finished tweaking git repo https://github.com/Phrohdoh/rocket-query-params-example-rs
[INFO] tweaked toml for git repo https://github.com/Phrohdoh/rocket-query-params-example-rs written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/Phrohdoh/rocket-query-params-example-rs 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]  Downloading crates ...
[INFO] [stderr]   Downloaded log v0.3.8
[INFO] [stderr]   Downloaded httparse v1.2.3
[INFO] [stderr]   Downloaded unicase v1.4.2
[INFO] [stderr]   Downloaded url v1.5.1
[INFO] [stderr]   Downloaded typeable v0.1.2
[INFO] [stderr]   Downloaded percent-encoding v1.0.0
[INFO] [stderr]   Downloaded cookie v0.6.2
[INFO] [stderr]   Downloaded term v0.4.6
[INFO] [stderr]   Downloaded num_cpus v1.6.2
[INFO] [stderr]   Downloaded base64 v0.5.2
[INFO] [stderr]   Downloaded mime v0.2.6
[INFO] [stderr]   Downloaded hyper v0.10.12
[INFO] [stderr]   Downloaded libc v0.2.24
[INFO] [stderr]   Downloaded unicode-bidi v0.3.3
[INFO] [stderr]   Downloaded traitobject v0.1.0
[INFO] [stderr]   Downloaded idna v0.1.2
[INFO] [stderr]   Downloaded redox_syscall v0.1.18
[INFO] [stderr]   Downloaded toml v0.2.1
[INFO] [stderr]   Downloaded matches v0.1.6
[INFO] [stderr]   Downloaded unicode-normalization v0.1.5
[INFO] [stderr]   Downloaded version_check v0.1.2
[INFO] [stderr]   Downloaded term-painter v0.2.3
[INFO] [stderr]   Downloaded memchr v1.0.1
[INFO] [stderr]   Downloaded state v0.2.2
[INFO] [stderr]   Downloaded time v0.1.37
[INFO] [stderr]   Downloaded rocket_codegen v0.2.8
[INFO] [stderr]   Downloaded rocket v0.2.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] b56bba2dee1b33bcb8c938ec1e00cc2321a1c480ac904f93d5d567ef05e68cf5
[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" "b56bba2dee1b33bcb8c938ec1e00cc2321a1c480ac904f93d5d567ef05e68cf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b56bba2dee1b33bcb8c938ec1e00cc2321a1c480ac904f93d5d567ef05e68cf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b56bba2dee1b33bcb8c938ec1e00cc2321a1c480ac904f93d5d567ef05e68cf5", kill_on_drop: false }`
[INFO] [stdout] b56bba2dee1b33bcb8c938ec1e00cc2321a1c480ac904f93d5d567ef05e68cf5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 682eff146a794eaed992ffd74d62e3a432dd9a2ada8bc9ee99157722354969d4
[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" "682eff146a794eaed992ffd74d62e3a432dd9a2ada8bc9ee99157722354969d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.24
[INFO] [stderr]    Compiling ansi_term v0.9.0
[INFO] [stderr]    Compiling log v0.3.8
[INFO] [stderr]    Compiling httparse v1.2.3
[INFO] [stderr]    Compiling state v0.2.2
[INFO] [stderr]     Checking toml v0.2.1
[INFO] [stderr]    Compiling unicode-bidi v0.3.3
[INFO] [stderr]     Checking num_cpus v1.6.2
[INFO] [stderr]    Compiling base64 v0.5.2
[INFO] [stderr]     Checking term-painter v0.2.3
[INFO] [stderr]     Checking url v1.5.1
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/state-0.2.2/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_fn)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/state-0.2.2/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_fn)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[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 E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `state`.
[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] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[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-1.5.1/src/form_urlencoded.rs:251:40
[INFO] [stdout]     |
[INFO] [stdout] 249 | impl<'a> Target for ::UrlQuery<'a> {
[INFO] [stdout]     |      -- lifetime `'a` defined here
[INFO] [stdout] 250 |     fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization }
[INFO] [stdout] 251 |     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: build failed
[INFO] running `Command { std: "docker" "inspect" "682eff146a794eaed992ffd74d62e3a432dd9a2ada8bc9ee99157722354969d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "682eff146a794eaed992ffd74d62e3a432dd9a2ada8bc9ee99157722354969d4", kill_on_drop: false }`
[INFO] [stdout] 682eff146a794eaed992ffd74d62e3a432dd9a2ada8bc9ee99157722354969d4