[INFO] cloning repository https://github.com/maltz/agon_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/maltz/agon_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaltz%2Fagon_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaltz%2Fagon_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ad6447d91f51d126c47656e3314c488b9501a225
[INFO] testing maltz/agon_rust against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaltz%2Fagon_rust" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/maltz/agon_rust on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/maltz/agon_rust
[INFO] finished tweaking git repo https://github.com/maltz/agon_rust
[INFO] tweaked toml for git repo https://github.com/maltz/agon_rust written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/maltz/agon_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded trust-dns-resolver v0.8.2
[INFO] [stderr]   Downloaded cargo_metadata v0.5.6
[INFO] [stderr]   Downloaded skeptic v0.13.3
[INFO] [stderr]   Downloaded socket2 v0.3.6
[INFO] [stderr]   Downloaded crossbeam-channel v0.1.3
[INFO] [stderr]   Downloaded trust-dns-proto v0.3.3
[INFO] [stderr]   Downloaded protobuf v1.7.3
[INFO] [stderr]   Downloaded actix-web v0.6.14
[INFO] [stderr]   Downloaded cmake v0.1.31
[INFO] [stderr]   Downloaded bytecount v0.3.1
[INFO] [stderr]   Downloaded actix v0.5.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5bccfa6fd0ef16853f2b5ab7301ff6708a457bf8c97a158dba914e08ed4434bd
[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" "5bccfa6fd0ef16853f2b5ab7301ff6708a457bf8c97a158dba914e08ed4434bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5bccfa6fd0ef16853f2b5ab7301ff6708a457bf8c97a158dba914e08ed4434bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bccfa6fd0ef16853f2b5ab7301ff6708a457bf8c97a158dba914e08ed4434bd", kill_on_drop: false }`
[INFO] [stdout] 5bccfa6fd0ef16853f2b5ab7301ff6708a457bf8c97a158dba914e08ed4434bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] a1adcca1b3a702b742515a33c35495eaeb84511827a2afd560551f5eb7200bb8
[INFO] running `Command { std: "docker" "start" "-a" "a1adcca1b3a702b742515a33c35495eaeb84511827a2afd560551f5eb7200bb8", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures v0.1.21
[INFO] [stderr]    Compiling pulldown-cmark v0.1.2
[INFO] [stderr]    Compiling same-file v1.0.2
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]    Compiling bytecount v0.3.1
[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 linked-hash-map v0.4.2
[INFO] [stderr]    Compiling untrusted v0.5.1
[INFO] [stderr]    Compiling httparse v1.3.1
[INFO] [stderr]    Compiling protobuf v1.7.3
[INFO] [stderr]    Compiling string v0.1.0
[INFO] [stderr]    Compiling http-range v0.1.1
[INFO] [stderr]    Compiling json v0.11.13
[INFO] [stderr]    Compiling hostname v0.1.5
[INFO] [stderr]    Compiling log v0.4.2
[INFO] [stderr]    Compiling crossbeam-utils v0.3.2
[INFO] [stderr]    Compiling net2 v0.2.32
[INFO] [stderr]    Compiling unicase v2.1.0
[INFO] [stderr]    Compiling actix_derive v0.2.0
[INFO] [stderr]    Compiling miniz-sys v0.1.10
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]    Compiling cmake v0.1.31
[INFO] [stderr]    Compiling actix-web v0.6.14
[INFO] [stderr]    Compiling regex-syntax v0.6.1
[INFO] [stderr]    Compiling base64 v0.6.0
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]    Compiling uuid v0.6.5
[INFO] [stderr]    Compiling owning_ref v0.3.3
[INFO] [stderr]    Compiling resolv-conf v0.6.1
[INFO] [stderr]    Compiling walkdir v2.1.4
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling lru-cache v0.1.1
[INFO] [stderr]    Compiling parking_lot_core v0.2.14
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling crossbeam-epoch v0.4.3
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stderr]    Compiling mio v0.6.14
[INFO] [stderr]    Compiling http v0.1.7
[INFO] [stderr]    Compiling serde_json v1.0.22
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling url v1.7.0
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]    Compiling grpcio-sys v0.1.2
[INFO] [stderr]    Compiling parking_lot v0.5.5
[INFO] [stderr]    Compiling backtrace v0.2.3
[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`
[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" "a1adcca1b3a702b742515a33c35495eaeb84511827a2afd560551f5eb7200bb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1adcca1b3a702b742515a33c35495eaeb84511827a2afd560551f5eb7200bb8", kill_on_drop: false }`
[INFO] [stdout] a1adcca1b3a702b742515a33c35495eaeb84511827a2afd560551f5eb7200bb8