[INFO] cloning repository https://github.com/ubnt-intrepid/react-iron-boilerplate
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ubnt-intrepid/react-iron-boilerplate" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fubnt-intrepid%2Freact-iron-boilerplate", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fubnt-intrepid%2Freact-iron-boilerplate'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ac36c05b617a9d2c3d4e0f3d76bc9e6212a07854
[INFO] checking ubnt-intrepid/react-iron-boilerplate against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fubnt-intrepid%2Freact-iron-boilerplate" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ubnt-intrepid/react-iron-boilerplate on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ubnt-intrepid/react-iron-boilerplate
[INFO] finished tweaking git repo https://github.com/ubnt-intrepid/react-iron-boilerplate
[INFO] tweaked toml for git repo https://github.com/ubnt-intrepid/react-iron-boilerplate written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/ubnt-intrepid/react-iron-boilerplate already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8f5f838eda75b04db1f854f9a4146d2b3555fa8c3e48eb12261b1ab9209009a2
[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" "8f5f838eda75b04db1f854f9a4146d2b3555fa8c3e48eb12261b1ab9209009a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f5f838eda75b04db1f854f9a4146d2b3555fa8c3e48eb12261b1ab9209009a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f5f838eda75b04db1f854f9a4146d2b3555fa8c3e48eb12261b1ab9209009a2", kill_on_drop: false }`
[INFO] [stdout] 8f5f838eda75b04db1f854f9a4146d2b3555fa8c3e48eb12261b1ab9209009a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "RUSTFLAGS=--cap-lints=forbid" "-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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 120c8039e12a37880c0696707df6c6bb0bcc0f5ac191d8571c48ed6cc30b68ba
[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" "120c8039e12a37880c0696707df6c6bb0bcc0f5ac191d8571c48ed6cc30b68ba", kill_on_drop: false }`
[INFO] [stderr]     Checking log v0.3.7
[INFO] [stderr]     Checking byteorder v1.0.0
[INFO] [stderr]    Compiling gcc v0.3.46
[INFO] [stderr]     Checking num-traits v0.1.37
[INFO] [stderr]     Checking httparse v1.2.2
[INFO] [stderr]     Checking lazy_static v0.2.8
[INFO] [stderr]     Checking modifier v0.1.0
[INFO] [stderr]     Checking rustc-demangle v0.1.4
[INFO] [stderr]     Checking serde v1.0.4
[INFO] [stderr]     Checking route-recognizer v0.1.12
[INFO] [stderr]     Checking sequence_trie v0.2.1
[INFO] [stderr]     Checking humansize v1.0.1
[INFO] [stderr]     Checking pest v0.4.1
[INFO] [stderr]    Compiling libsqlite3-sys v0.7.1
[INFO] [stderr]     Checking time v0.1.37
[INFO] [stderr]     Checking unsafe-any v0.4.1
[INFO] [stderr]     Checking num_cpus v1.4.0
[INFO] [stderr]     Checking error v0.1.9
[INFO] [stderr]     Checking thread-id v3.1.0
[INFO] [stderr]     Checking memchr v1.0.1
[INFO] [stderr]     Checking unicode-bidi v0.2.5
[INFO] [stderr]     Checking conduit-mime-types v0.7.3
[INFO] [stderr]     Checking slug v0.1.2
[INFO] [stderr]     Checking scheduled-thread-pool v0.1.0
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking mime v0.2.4
[INFO] [stderr]    Compiling hyper v0.10.10
[INFO] [stderr]     Checking base64 v0.5.2
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]     Checking thread_local v0.3.3
[INFO] [stderr]    Compiling unicase v1.4.0
[INFO] [stderr]    Compiling backtrace v0.3.0
[INFO] [stderr]     Checking aho-corasick v0.6.3
[INFO] [stderr]     Checking r2d2 v0.7.2
[INFO] [stderr]     Checking plugin v0.2.6
[INFO] [stderr]     Checking idna v0.1.1
[INFO] [stderr]     Checking num-integer v0.1.34
[INFO] [stderr]     Checking regex v0.2.1
[INFO] [stderr]     Checking diesel v0.12.1
[INFO] [stderr]     Checking num-iter v0.1.33
[INFO] [stderr]    Compiling backtrace-sys v0.1.10
[INFO] [stderr]     Checking num v0.1.37
[INFO] [stderr]     Checking chrono v0.3.1
[INFO] [stderr]     Checking url v1.4.0
[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-1.4.0/src/form_urlencoded.rs:246:40
[INFO] [stdout]     |
[INFO] [stdout] 244 | impl<'a> Target for ::UrlQuery<'a> {
[INFO] [stdout]     |      -- lifetime `'a` defined here
[INFO] [stdout] 245 |     fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization }
[INFO] [stdout] 246 |     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" "120c8039e12a37880c0696707df6c6bb0bcc0f5ac191d8571c48ed6cc30b68ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "120c8039e12a37880c0696707df6c6bb0bcc0f5ac191d8571c48ed6cc30b68ba", kill_on_drop: false }`
[INFO] [stdout] 120c8039e12a37880c0696707df6c6bb0bcc0f5ac191d8571c48ed6cc30b68ba