[INFO] cloning repository https://github.com/mglawica/wark
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mglawica/wark" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmglawica%2Fwark", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmglawica%2Fwark'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e0cd359664c6489d063b53b36da54757468e30e3
[INFO] checking mglawica/wark against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmglawica%2Fwark" "/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/mglawica/wark on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mglawica/wark
[INFO] finished tweaking git repo https://github.com/mglawica/wark
[INFO] tweaked toml for git repo https://github.com/mglawica/wark written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/mglawica/wark already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures v0.1.19
[INFO] [stderr]   Downloaded sha1 v0.4.0
[INFO] [stderr]   Downloaded tar v0.4.14
[INFO] [stderr]   Downloaded cmake v0.1.29
[INFO] [stderr]   Downloaded tk-bufstream v0.3.0
[INFO] [stderr]   Downloaded netbuf v0.4.0
[INFO] [stderr]   Downloaded ipnetwork v0.12.8
[INFO] [stderr]   Downloaded argparse v0.2.1
[INFO] [stderr]   Downloaded capturing-glob v0.1.1
[INFO] [stderr]   Downloaded structopt-derive v0.2.5
[INFO] [stderr]   Downloaded trimmer_derive v0.1.0
[INFO] [stderr]   Downloaded combine v2.5.2
[INFO] [stderr]   Downloaded tk-http v0.3.8
[INFO] [stderr]   Downloaded tokio-executor v0.1.0
[INFO] [stderr]   Downloaded tokio v0.1.3
[INFO] [stderr]   Downloaded tokio-reactor v0.1.0
[INFO] [stderr]   Downloaded termcolor v0.3.5
[INFO] [stderr]   Downloaded git2 v0.7.0
[INFO] [stderr]   Downloaded tokio-threadpool v0.1.0
[INFO] [stderr]   Downloaded libgit2-sys v0.7.1
[INFO] [stderr]   Downloaded humannum v0.1.0
[INFO] [stderr]   Downloaded itoa v0.4.0
[INFO] [stderr]   Downloaded ns-std-threaded v0.3.0
[INFO] [stderr]   Downloaded serde_str v0.1.0
[INFO] [stderr]   Downloaded async-slot v0.1.0
[INFO] [stderr]   Downloaded ns-env-config v0.1.0
[INFO] [stderr]   Downloaded structopt v0.2.5
[INFO] [stderr]   Downloaded ns-router v0.1.6
[INFO] [stderr]   Downloaded abstract-ns v0.4.3
[INFO] [stderr]   Downloaded xattr v0.1.11
[INFO] [stderr]   Downloaded tokio-core v0.1.15
[INFO] [stderr]   Downloaded trimmer v0.3.6
[INFO] [stderr]   Downloaded quire v0.3.1
[INFO] [stderr]   Downloaded tk-easyloop v0.1.1
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e6e328fc680a36fb222b78b26acdef62a2de67b7c8cfcec48681d296b86c718b
[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" "e6e328fc680a36fb222b78b26acdef62a2de67b7c8cfcec48681d296b86c718b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6e328fc680a36fb222b78b26acdef62a2de67b7c8cfcec48681d296b86c718b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6e328fc680a36fb222b78b26acdef62a2de67b7c8cfcec48681d296b86c718b", kill_on_drop: false }`
[INFO] [stdout] e6e328fc680a36fb222b78b26acdef62a2de67b7c8cfcec48681d296b86c718b
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 073a850717baf82950792e6f925d1f340c0a0c773843872c6e4f0bbe53302f49
[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" "073a850717baf82950792e6f925d1f340c0a0c773843872c6e4f0bbe53302f49", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.8
[INFO] [stderr]     Checking futures v0.1.19
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking slab v0.4.0
[INFO] [stderr]     Checking matches v0.1.6
[INFO] [stderr]     Checking lazycell v0.6.0
[INFO] [stderr]     Checking num-traits v0.2.2
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]     Checking serde v1.0.33
[INFO] [stderr]     Checking itoa v0.4.0
[INFO] [stderr]     Checking ascii v0.7.1
[INFO] [stderr]    Compiling build_const v0.2.0
[INFO] [stderr]     Checking ipnetwork v0.12.8
[INFO] [stderr]     Checking netbuf v0.4.0
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking termcolor v0.3.5
[INFO] [stderr]     Checking httparse v1.2.4
[INFO] [stderr]     Checking capturing-glob v0.1.1
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking xattr v0.1.11
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]     Checking net2 v0.2.32
[INFO] [stderr]     Checking filetime v0.1.15
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking regex-syntax v0.5.3
[INFO] [stderr]     Checking combine v2.5.2
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]    Compiling crc v1.7.0
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]    Compiling trimmer_derive v0.1.0
[INFO] [stderr]     Checking bytes v0.4.6
[INFO] [stderr]     Checking tar v0.4.14
[INFO] [stderr]     Checking idna v0.1.4
[INFO] [stderr]    Compiling quote v0.4.2
[INFO] [stderr]     Checking crossbeam-epoch v0.4.1
[INFO] [stderr]    Compiling cmake v0.1.29
[INFO] [stderr]     Checking mio v0.6.14
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking tokio-executor v0.1.0
[INFO] [stderr]     Checking abstract-ns v0.4.3
[INFO] [stderr]     Checking async-slot v0.1.0
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]    Compiling syn v0.12.14
[INFO] [stderr]     Checking crossbeam-deque v0.3.0
[INFO] [stderr]     Checking tokio-io v0.1.6
[INFO] [stderr]     Checking humannum v0.1.0
[INFO] [stderr]     Checking url v1.7.0
[INFO] [stderr]     Checking ns-std-threaded v0.3.0
[INFO] [stderr]     Checking tokio-threadpool v0.1.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling libz-sys v1.0.18
[INFO] [stderr]    Compiling libgit2-sys v0.7.1
[INFO] [stderr]     Checking libflate v0.1.14
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]     Checking tokio-reactor v0.1.0
[INFO] [stderr]     Checking tk-bufstream v0.3.0
[INFO] [stderr]     Checking serde_json v1.0.13
[INFO] [stderr]     Checking quire v0.3.1
[INFO] [stderr]     Checking serde_str v0.1.0
[INFO] [stderr]     Checking tokio v0.1.3
[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" "073a850717baf82950792e6f925d1f340c0a0c773843872c6e4f0bbe53302f49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "073a850717baf82950792e6f925d1f340c0a0c773843872c6e4f0bbe53302f49", kill_on_drop: false }`
[INFO] [stdout] 073a850717baf82950792e6f925d1f340c0a0c773843872c6e4f0bbe53302f49