[INFO] cloning repository https://github.com/viperscape/capsule
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/viperscape/capsule" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fviperscape%2Fcapsule", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fviperscape%2Fcapsule'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 653bf02377bce36371a1b0c2b54e8fce91653a17
[INFO] checking viperscape/capsule against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fviperscape%2Fcapsule" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/viperscape/capsule on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/viperscape/capsule
[INFO] finished tweaking git repo https://github.com/viperscape/capsule
[INFO] tweaked toml for git repo https://github.com/viperscape/capsule written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/viperscape/capsule already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e7eafa34aca2831189103d98cfdf2825815a36af19da3641796e55945a5230a4
[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" "e7eafa34aca2831189103d98cfdf2825815a36af19da3641796e55945a5230a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7eafa34aca2831189103d98cfdf2825815a36af19da3641796e55945a5230a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7eafa34aca2831189103d98cfdf2825815a36af19da3641796e55945a5230a4", kill_on_drop: false }`
[INFO] [stdout] e7eafa34aca2831189103d98cfdf2825815a36af19da3641796e55945a5230a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4427b42f25b27875af871634e4a610bbf6b1ca46a4b7e83339788a7caea915fc
[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" "4427b42f25b27875af871634e4a610bbf6b1ca46a4b7e83339788a7caea915fc", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.29
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]    Compiling gcc v0.3.51
[INFO] [stderr]     Checking futures v0.1.14
[INFO] [stderr]    Compiling openssl v0.9.15
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking nom v2.2.1
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking serde v1.0.11
[INFO] [stderr]     Checking groupable v0.2.0
[INFO] [stderr]     Checking modifier v0.1.0
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking thread_local v0.3.4
[INFO] [stderr]     Checking url v1.5.1
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking plugin v0.2.6
[INFO] [stderr]     Checking iovec v0.1.0
[INFO] [stderr]     Checking net2 v0.2.30
[INFO] [stderr]     Checking rand v0.3.16
[INFO] [stderr]     Checking time v0.1.38
[INFO] [stderr]     Checking memchr v1.0.1
[INFO] [stderr]     Checking num_cpus v1.6.2
[INFO] [stderr]     Checking aho-corasick v0.6.3
[INFO] [stderr]     Checking bytes v0.4.4
[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]    Compiling openssl-sys v0.9.15
[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" "4427b42f25b27875af871634e4a610bbf6b1ca46a4b7e83339788a7caea915fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4427b42f25b27875af871634e4a610bbf6b1ca46a4b7e83339788a7caea915fc", kill_on_drop: false }`
[INFO] [stdout] 4427b42f25b27875af871634e4a610bbf6b1ca46a4b7e83339788a7caea915fc