[INFO] cloning repository https://github.com/july2993/zergling
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/july2993/zergling" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuly2993%2Fzergling", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuly2993%2Fzergling'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f20431365e31932f00734be0ba71e7d890675a59
[INFO] testing july2993/zergling against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuly2993%2Fzergling" "/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/july2993/zergling on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/july2993/zergling
[INFO] finished tweaking git repo https://github.com/july2993/zergling
[INFO] tweaked toml for git repo https://github.com/july2993/zergling written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/july2993/zergling already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quine-mc_cluskey v0.2.4
[INFO] [stderr]   Downloaded cargo_metadata v0.2.3
[INFO] [stderr]   Downloaded if_chain v0.1.2
[INFO] [stderr]   Downloaded crc v1.6.0
[INFO] [stderr]   Downloaded quick-error v0.2.2
[INFO] [stderr]   Downloaded pulldown-cmark v0.0.15
[INFO] [stderr]   Downloaded httpbis v0.4.1
[INFO] [stderr]   Downloaded multipart v0.13.3
[INFO] [stderr]   Downloaded grpc v0.2.1
[INFO] [stderr]   Downloaded memchr v2.0.0
[INFO] [stderr]   Downloaded signal v0.4.1
[INFO] [stderr]   Downloaded libflate v0.1.12
[INFO] [stderr]   Downloaded procinfo v0.3.1
[INFO] [stderr]   Downloaded tls-api v0.1.11
[INFO] [stderr]   Downloaded lru v0.1.4
[INFO] [stderr]   Downloaded tls-api-stub v0.1.11
[INFO] [stderr]   Downloaded prometheus v0.3.3
[INFO] [stderr]   Downloaded tokio-tls-api v0.1.11
[INFO] [stderr]   Downloaded clippy v0.0.174
[INFO] [stderr]   Downloaded clippy_lints v0.0.174
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] 987564dcfc8b95820efacab92faa968bcafdbbe9b6cf1b28452d645c139755de
[INFO] running `Command { std: "docker" "start" "-a" "987564dcfc8b95820efacab92faa968bcafdbbe9b6cf1b28452d645c139755de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "987564dcfc8b95820efacab92faa968bcafdbbe9b6cf1b28452d645c139755de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "987564dcfc8b95820efacab92faa968bcafdbbe9b6cf1b28452d645c139755de", kill_on_drop: false }`
[INFO] [stdout] 987564dcfc8b95820efacab92faa968bcafdbbe9b6cf1b28452d645c139755de
[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=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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", 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] f67cfd52a7c6cc628b9aa162f5f9fdf6a35387c474941be0c9281ffa1d0ad6e8
[INFO] running `Command { std: "docker" "start" "-a" "f67cfd52a7c6cc628b9aa162f5f9fdf6a35387c474941be0c9281ffa1d0ad6e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.33
[INFO] [stderr]    Compiling futures v0.1.17
[INFO] [stderr]    Compiling slab v0.4.0
[INFO] [stderr]    Compiling scoped-tls v0.1.0
[INFO] [stderr]    Compiling cc v1.0.3
[INFO] [stderr]    Compiling build_const v0.2.0
[INFO] [stderr]    Compiling nom v1.2.4
[INFO] [stderr]    Compiling smallvec v0.2.1
[INFO] [stderr]    Compiling take v0.1.0
[INFO] [stderr]    Compiling serde v1.0.21
[INFO] [stderr]    Compiling route-recognizer v0.1.12
[INFO] [stderr]    Compiling strsim v0.6.0
[INFO] [stderr]    Compiling vec_map v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.9.0
[INFO] [stderr]    Compiling quick-error v0.2.2
[INFO] [stderr]    Compiling lru v0.1.4
[INFO] [stderr]    Compiling unicase v2.1.0
[INFO] [stderr]    Compiling tls-api v0.1.11
[INFO] [stderr]    Compiling hpack v0.2.0
[INFO] [stderr]    Compiling base64 v0.8.0
[INFO] [stderr]    Compiling serde_json v0.8.6
[INFO] [stderr]    Compiling procinfo v0.3.1
[INFO] [stderr]    Compiling thread_local v0.3.4
[INFO] [stderr]    Compiling url v1.6.0
[INFO] [stderr]    Compiling tls-api-stub v0.1.11
[INFO] [stderr]    Compiling crc v1.6.0
[INFO] [stderr]    Compiling serde_derive_internals v0.17.0
[INFO] [stderr]    Compiling time v0.1.38
[INFO] [stderr]    Compiling num_cpus v1.7.0
[INFO] [stderr]    Compiling rand v0.3.18
[INFO] [stderr]    Compiling iovec v0.1.1
[INFO] [stderr]    Compiling net2 v0.2.31
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling memchr v2.0.0
[INFO] [stderr]    Compiling atty v0.2.3
[INFO] [stderr]    Compiling nix v0.9.0
[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` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f67cfd52a7c6cc628b9aa162f5f9fdf6a35387c474941be0c9281ffa1d0ad6e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f67cfd52a7c6cc628b9aa162f5f9fdf6a35387c474941be0c9281ffa1d0ad6e8", kill_on_drop: false }`
[INFO] [stdout] f67cfd52a7c6cc628b9aa162f5f9fdf6a35387c474941be0c9281ffa1d0ad6e8