[INFO] cloning repository https://github.com/aslamplr/scrabber
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aslamplr/scrabber" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faslamplr%2Fscrabber", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faslamplr%2Fscrabber'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 906a11f42572b3f4e8908cab258320aa072211b3
[INFO] testing aslamplr/scrabber against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faslamplr%2Fscrabber" "/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/aslamplr/scrabber 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/aslamplr/scrabber
[INFO] finished tweaking git repo https://github.com/aslamplr/scrabber
[INFO] tweaked toml for git repo https://github.com/aslamplr/scrabber written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/aslamplr/scrabber 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] 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] [stdout] 6ca768dc32ea2db9eb7399bf49e3a9a2c904d810e304ec2434676dae8d7975a6
[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" "6ca768dc32ea2db9eb7399bf49e3a9a2c904d810e304ec2434676dae8d7975a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ca768dc32ea2db9eb7399bf49e3a9a2c904d810e304ec2434676dae8d7975a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ca768dc32ea2db9eb7399bf49e3a9a2c904d810e304ec2434676dae8d7975a6", kill_on_drop: false }`
[INFO] [stdout] 6ca768dc32ea2db9eb7399bf49e3a9a2c904d810e304ec2434676dae8d7975a6
[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] [stdout] 29df65e86721b0cfd2b5eda1a8c04ff915602a88610bbe9f2b382b20aa039666
[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" "29df65e86721b0cfd2b5eda1a8c04ff915602a88610bbe9f2b382b20aa039666", kill_on_drop: false }`
[INFO] [stderr]    Compiling nodrop v0.1.12
[INFO] [stderr]    Compiling procedural-masquerade v0.1.6
[INFO] [stderr]    Compiling stable_deref_trait v1.1.0
[INFO] [stderr]    Compiling smallvec v0.6.2
[INFO] [stderr]    Compiling regex v1.0.1
[INFO] [stderr]    Compiling ego-tree v0.5.0
[INFO] [stderr]    Compiling atty v0.2.10
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling log v0.4.2
[INFO] [stderr]    Compiling dtoa-short v0.3.2
[INFO] [stderr]    Compiling openssl-sys v0.9.33
[INFO] [stderr]    Compiling base64 v0.9.2
[INFO] [stderr]    Compiling textwrap v0.9.0
[INFO] [stderr]    Compiling regex-syntax v0.6.1
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[INFO] [stderr]    Compiling uuid v0.6.5
[INFO] [stderr]    Compiling tokio-timer v0.2.4
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stderr]    Compiling arrayvec v0.4.7
[INFO] [stderr]    Compiling servo_arc v0.1.1
[INFO] [stderr]    Compiling csv v0.15.0
[INFO] [stderr]    Compiling serde_json v1.0.21
[INFO] [stderr]    Compiling futf v0.1.4
[INFO] [stderr]    Compiling url v1.7.0
[INFO] [stderr]    Compiling phf_shared v0.7.22
[INFO] [stderr]    Compiling tokio-io v0.1.7
[INFO] [stderr]    Compiling mio v0.6.14
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling want v0.0.4
[INFO] [stderr]    Compiling clap v2.31.2
[INFO] [stderr]    Compiling serde_derive v1.0.66
[INFO] [stderr]    Compiling libflate v0.1.15
[INFO] [stderr]    Compiling chrono v0.4.3
[INFO] [stderr]    Compiling tendril v0.4.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.4.3
[INFO] [stderr]    Compiling phf_generator v0.7.22
[INFO] [stderr]    Compiling phf v0.7.22
[INFO] [stderr]    Compiling prettytable-rs v0.6.7
[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-1.7.0/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] [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" "29df65e86721b0cfd2b5eda1a8c04ff915602a88610bbe9f2b382b20aa039666", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29df65e86721b0cfd2b5eda1a8c04ff915602a88610bbe9f2b382b20aa039666", kill_on_drop: false }`
[INFO] [stdout] 29df65e86721b0cfd2b5eda1a8c04ff915602a88610bbe9f2b382b20aa039666