[INFO] cloning repository https://github.com/HowNetWorks/ama
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/HowNetWorks/ama" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHowNetWorks%2Fama", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHowNetWorks%2Fama'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 46ad7c8e76e2344c35434be0a2514bc22b887f32
[INFO] checking HowNetWorks/ama against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHowNetWorks%2Fama" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/HowNetWorks/ama on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/HowNetWorks/ama
[INFO] finished tweaking git repo https://github.com/HowNetWorks/ama
[INFO] tweaked toml for git repo https://github.com/HowNetWorks/ama written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/HowNetWorks/ama already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded error v0.1.9
[INFO] [stderr]   Downloaded magenta-sys v0.1.1
[INFO] [stderr]   Downloaded router v0.5.1
[INFO] [stderr]   Downloaded num-traits v0.1.40
[INFO] [stderr]   Downloaded percent-encoding v1.0.0
[INFO] [stderr]   Downloaded conduit-mime-types v0.7.3
[INFO] [stderr]   Downloaded num v0.1.40
[INFO] [stderr]   Downloaded magenta v0.1.1
[INFO] [stderr]   Downloaded lazy_static v0.2.8
[INFO] [stderr]   Downloaded rand v0.3.16
[INFO] [stderr]   Downloaded resolve v0.1.2
[INFO] [stderr]   Downloaded num_cpus v1.6.2
[INFO] [stderr]   Downloaded redox_syscall v0.1.31
[INFO] [stderr]   Downloaded time v0.1.38
[INFO] [stderr]   Downloaded iron v0.5.1
[INFO] [stderr]   Downloaded libc v0.2.30
[INFO] [stderr]   Downloaded url v1.5.1
[INFO] [stderr]   Downloaded byteorder v1.1.0
[INFO] [stderr]   Downloaded cymrust v0.3.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7c29f24f0133a2948ae9562e63770387fe2f04516927205cad61166e3bd565d5
[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" "7c29f24f0133a2948ae9562e63770387fe2f04516927205cad61166e3bd565d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c29f24f0133a2948ae9562e63770387fe2f04516927205cad61166e3bd565d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c29f24f0133a2948ae9562e63770387fe2f04516927205cad61166e3bd565d5", kill_on_drop: false }`
[INFO] [stdout] 7c29f24f0133a2948ae9562e63770387fe2f04516927205cad61166e3bd565d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--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] 615663ce3ffd16230e3de66834d610c5e135aaee9a6c365dd5e544c2fbfa9baa
[INFO] running `Command { std: "docker" "start" "-a" "615663ce3ffd16230e3de66834d610c5e135aaee9a6c365dd5e544c2fbfa9baa", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.30
[INFO] [stderr]     Checking matches v0.1.6
[INFO] [stderr]     Checking unicode-normalization v0.1.5
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]     Checking log v0.3.8
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking percent-encoding v1.0.0
[INFO] [stderr]     Checking httparse v1.2.3
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]     Checking base64 v0.6.0
[INFO] [stderr]     Checking num v0.1.40
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]     Checking error v0.1.9
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]     Checking plugin v0.2.6
[INFO] [stderr]     Checking time v0.1.38
[INFO] [stderr]     Checking num_cpus v1.6.2
[INFO] [stderr]     Checking rand v0.3.16
[INFO] [stderr]     Checking idna v0.1.4
[INFO] [stderr]     Checking chrono v0.4.0
[INFO] [stderr]     Checking url v1.5.1
[INFO] [stderr]     Checking resolve v0.1.2
[INFO] [stderr]     Checking cymrust v0.3.4
[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: 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" "615663ce3ffd16230e3de66834d610c5e135aaee9a6c365dd5e544c2fbfa9baa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "615663ce3ffd16230e3de66834d610c5e135aaee9a6c365dd5e544c2fbfa9baa", kill_on_drop: false }`
[INFO] [stdout] 615663ce3ffd16230e3de66834d610c5e135aaee9a6c365dd5e544c2fbfa9baa