[INFO] cloning repository https://github.com/nalbech87/rust-ark-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nalbech87/rust-ark-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnalbech87%2Frust-ark-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnalbech87%2Frust-ark-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a02d9ee8b5054a0443a871b618cbf6ba3af91fe2
[INFO] testing nalbech87/rust-ark-example against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnalbech87%2Frust-ark-example" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nalbech87/rust-ark-example on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nalbech87/rust-ark-example
[INFO] finished tweaking git repo https://github.com/nalbech87/rust-ark-example
[INFO] tweaked toml for git repo https://github.com/nalbech87/rust-ark-example written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/nalbech87/rust-ark-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aae546038c9e4a0f3f5a516d3e1c834902e897da2238a4b2b771611bf846ea55
[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" "aae546038c9e4a0f3f5a516d3e1c834902e897da2238a4b2b771611bf846ea55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aae546038c9e4a0f3f5a516d3e1c834902e897da2238a4b2b771611bf846ea55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aae546038c9e4a0f3f5a516d3e1c834902e897da2238a4b2b771611bf846ea55", kill_on_drop: false }`
[INFO] [stdout] aae546038c9e4a0f3f5a516d3e1c834902e897da2238a4b2b771611bf846ea55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0300be4df92e10950892d60041df9e22e24a723dbbcef6ad8ab4790c0e8a15ae
[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" "0300be4df92e10950892d60041df9e22e24a723dbbcef6ad8ab4790c0e8a15ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures v0.1.16
[INFO] [stderr]    Compiling log v0.3.8
[INFO] [stderr]    Compiling siphasher v0.2.2
[INFO] [stderr]    Compiling openssl v0.9.19
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling dtoa v0.4.2
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling adler32 v1.0.2
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling rand v0.3.17
[INFO] [stderr]    Compiling iovec v0.1.1
[INFO] [stderr]    Compiling num_cpus v1.7.0
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling openssl-sys v0.9.19
[INFO] [stderr]    Compiling net2 v0.2.31
[INFO] [stderr]    Compiling base64 v0.6.0
[INFO] [stderr]    Compiling unicase v2.0.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling bytes v0.4.5
[INFO] [stderr]    Compiling libflate v0.1.11
[INFO] [stderr]    Compiling serde_json v1.0.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.14
[INFO] [stderr]    Compiling url v1.5.1
[INFO] [stderr]    Compiling mio v0.6.10
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling backtrace v0.3.3
[INFO] [stderr]    Compiling term-painter v0.2.4
[INFO] [stderr]    Compiling phf_shared v0.7.21
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling mime v0.3.4
[INFO] [stderr]    Compiling phf v0.7.21
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]    Compiling uuid v0.5.1
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[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`
[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" "0300be4df92e10950892d60041df9e22e24a723dbbcef6ad8ab4790c0e8a15ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0300be4df92e10950892d60041df9e22e24a723dbbcef6ad8ab4790c0e8a15ae", kill_on_drop: false }`
[INFO] [stdout] 0300be4df92e10950892d60041df9e22e24a723dbbcef6ad8ab4790c0e8a15ae