[INFO] cloning repository https://github.com/brandur/middleware-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/brandur/middleware-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrandur%2Fmiddleware-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrandur%2Fmiddleware-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 14706c69f8c99369ed85d1105df8ebc42c85fa8b
[INFO] checking brandur/middleware-rust against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrandur%2Fmiddleware-rust" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/brandur/middleware-rust 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/brandur/middleware-rust
[INFO] finished tweaking git repo https://github.com/brandur/middleware-rust
[INFO] tweaked toml for git repo https://github.com/brandur/middleware-rust written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/brandur/middleware-rust 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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] a26a334aa0e3da82b015f284f483a411b7d3fb726ebd686e80d58938bad28bbe
[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" "a26a334aa0e3da82b015f284f483a411b7d3fb726ebd686e80d58938bad28bbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a26a334aa0e3da82b015f284f483a411b7d3fb726ebd686e80d58938bad28bbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a26a334aa0e3da82b015f284f483a411b7d3fb726ebd686e80d58938bad28bbe", kill_on_drop: false }`
[INFO] [stdout] a26a334aa0e3da82b015f284f483a411b7d3fb726ebd686e80d58938bad28bbe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] c51f7cff1ba413b75f26e639ebd3552935cb23a1d8d85da436e8afaa699b29a8
[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" "c51f7cff1ba413b75f26e639ebd3552935cb23a1d8d85da436e8afaa699b29a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v0.1.2
[INFO] [stderr]    Compiling serde v1.0.27
[INFO] [stderr]    Compiling rustc-demangle v0.1.7
[INFO] [stderr]    Compiling num-traits v0.2.1
[INFO] [stderr]    Compiling pulldown-cmark v0.1.2
[INFO] [stderr]    Compiling dtoa v0.4.2
[INFO] [stderr]    Compiling same-file v0.1.3
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]    Compiling bytecount v0.2.0
[INFO] [stderr]    Compiling lazy_static v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.4.2
[INFO] [stderr]     Checking smallvec v0.6.0
[INFO] [stderr]     Checking slog v2.1.1
[INFO] [stderr]     Checking quick-error v1.2.1
[INFO] [stderr]     Checking crossbeam v0.3.0
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking ordermap v0.2.13
[INFO] [stderr]     Checking string v0.1.0
[INFO] [stderr]     Checking sha1 v0.4.0
[INFO] [stderr]     Checking take_mut v0.2.0
[INFO] [stderr]     Checking http-range v0.1.1
[INFO] [stderr]     Checking termcolor v0.3.5
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]    Compiling miniz-sys v0.1.10
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]    Compiling actix_derive v0.1.1
[INFO] [stderr]     Checking atty v0.2.6
[INFO] [stderr]     Checking isatty v0.1.6
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling walkdir v1.0.7
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking num-iter v0.1.35
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking tokio-io v0.1.5
[INFO] [stderr]     Checking http v0.1.5
[INFO] [stderr]     Checking url v1.7.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.0
[INFO] [stderr]     Checking uuid v0.5.1
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking mio-uds v0.6.4
[INFO] [stderr]    Compiling remove_dir_all v0.3.0
[INFO] [stderr]     Checking slog-async v2.2.0
[INFO] [stderr]     Checking chrono v0.4.0
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]    Compiling tempdir v0.3.6
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]     Checking regex v0.2.6
[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] [stderr]     Checking tokio-core v0.1.12
[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" "c51f7cff1ba413b75f26e639ebd3552935cb23a1d8d85da436e8afaa699b29a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c51f7cff1ba413b75f26e639ebd3552935cb23a1d8d85da436e8afaa699b29a8", kill_on_drop: false }`
[INFO] [stdout] c51f7cff1ba413b75f26e639ebd3552935cb23a1d8d85da436e8afaa699b29a8