[INFO] cloning repository https://github.com/mockersf/gateway
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mockersf/gateway" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmockersf%2Fgateway", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmockersf%2Fgateway'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 86c3004cba149cc9f991f833147f9cb43dad4c3d
[INFO] testing mockersf/gateway against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmockersf%2Fgateway" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mockersf/gateway 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/mockersf/gateway
[INFO] finished tweaking git repo https://github.com/mockersf/gateway
[INFO] tweaked toml for git repo https://github.com/mockersf/gateway written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/mockersf/gateway 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded net2 v0.2.29
[INFO] [stderr]   Downloaded num_cpus v1.4.0
[INFO] [stderr]   Downloaded libloading v0.4.0
[INFO] [stderr]   Downloaded base64 v0.5.2
[INFO] [stderr]   Downloaded iovec v0.1.0
[INFO] [stderr]   Downloaded tokio-io v0.1.1
[INFO] [stderr]   Downloaded unicode-bidi v0.2.6
[INFO] [stderr]   Downloaded mime v0.2.4
[INFO] [stderr]   Downloaded bytes v0.4.3
[INFO] [stderr]   Downloaded futures v0.1.13
[INFO] [stderr]   Downloaded tokio-core v0.1.7
[INFO] [stderr]   Downloaded httparse v1.2.2
[INFO] [stderr]   Downloaded idna v0.1.1
[INFO] [stderr]   Downloaded mio v0.6.7
[INFO] [stderr]   Downloaded unicase v2.0.0
[INFO] [stderr]   Downloaded log v0.3.7
[INFO] [stderr]   Downloaded futures-cpupool v0.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stdout] 072fa32ad03e47176c4607a345a35d0f8558c8f44c6c5f363ae64a56cdd82038
[INFO] running `Command { std: "docker" "start" "-a" "072fa32ad03e47176c4607a345a35d0f8558c8f44c6c5f363ae64a56cdd82038", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "072fa32ad03e47176c4607a345a35d0f8558c8f44c6c5f363ae64a56cdd82038", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "072fa32ad03e47176c4607a345a35d0f8558c8f44c6c5f363ae64a56cdd82038", kill_on_drop: false }`
[INFO] [stdout] 072fa32ad03e47176c4607a345a35d0f8558c8f44c6c5f363ae64a56cdd82038
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stdout] 7abbca56bf96970ae609994dd4011fd873ab60d7f6e716a3624bc02b44f3650f
[INFO] running `Command { std: "docker" "start" "-a" "7abbca56bf96970ae609994dd4011fd873ab60d7f6e716a3624bc02b44f3650f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.23
[INFO] [stderr]    Compiling log v0.3.7
[INFO] [stderr]    Compiling futures v0.1.13
[INFO] [stderr]    Compiling byteorder v1.0.0
[INFO] [stderr]    Compiling cfg-if v0.1.0
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling slab v0.3.0
[INFO] [stderr]    Compiling lazycell v0.4.0
[INFO] [stderr]    Compiling matches v0.1.4
[INFO] [stderr]    Compiling scoped-tls v0.1.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.4
[INFO] [stderr]    Compiling take v0.1.0
[INFO] [stderr]    Compiling smallvec v0.2.1
[INFO] [stderr]    Compiling httparse v1.2.2
[INFO] [stderr]    Compiling libloading v0.4.0
[INFO] [stderr]    Compiling language-tags v0.2.2
[INFO] [stderr]    Compiling lazy_static v0.2.8
[INFO] [stderr]    Compiling unicode-bidi v0.2.6
[INFO] [stderr]    Compiling base64 v0.5.2
[INFO] [stderr]    Compiling mime v0.2.4
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling iovec v0.1.0
[INFO] [stderr]    Compiling net2 v0.2.29
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling num_cpus v1.4.0
[INFO] [stderr]    Compiling time v0.1.37
[INFO] [stderr]    Compiling unicase v2.0.0
[INFO] [stderr]    Compiling bytes v0.4.3
[INFO] [stderr]    Compiling idna v0.1.1
[INFO] [stderr]    Compiling mio v0.6.7
[INFO] [stderr]    Compiling tokio-io v0.1.1
[INFO] [stderr]    Compiling tokio-service v0.1.0
[INFO] [stderr]    Compiling futures-cpupool v0.1.5
[INFO] [stderr]    Compiling url v1.4.0
[INFO] [stderr]    Compiling tokio-core v0.1.7
[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` 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" "7abbca56bf96970ae609994dd4011fd873ab60d7f6e716a3624bc02b44f3650f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7abbca56bf96970ae609994dd4011fd873ab60d7f6e716a3624bc02b44f3650f", kill_on_drop: false }`
[INFO] [stdout] 7abbca56bf96970ae609994dd4011fd873ab60d7f6e716a3624bc02b44f3650f