[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 1.55.0 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmglawica%2Fwark" "/workspace/builds/worker-32/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-32/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mglawica/wark 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/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-32/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" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded filetime v0.1.15
[INFO] [stderr]   Downloaded argparse v0.2.1
[INFO] [stderr]   Downloaded structopt v0.2.5
[INFO] [stderr]   Downloaded crc v1.7.0
[INFO] [stderr]   Downloaded cmake v0.1.29
[INFO] [stderr]   Downloaded cc v1.0.8
[INFO] [stderr]   Downloaded xattr v0.1.11
[INFO] [stderr]   Downloaded tar v0.4.14
[INFO] [stderr]   Downloaded git2 v0.7.0
[INFO] [stderr]   Downloaded libflate v0.1.14
[INFO] [stderr]   Downloaded combine v2.5.2
[INFO] [stderr]   Downloaded netbuf v0.4.0
[INFO] [stderr]   Downloaded humannum v0.1.0
[INFO] [stderr]   Downloaded structopt-derive v0.2.5
[INFO] [stderr]   Downloaded tokio-executor v0.1.0
[INFO] [stderr]   Downloaded sha1 v0.4.0
[INFO] [stderr]   Downloaded tokio-threadpool v0.1.0
[INFO] [stderr]   Downloaded tokio v0.1.3
[INFO] [stderr]   Downloaded libgit2-sys v0.7.1
[INFO] [stderr]   Downloaded termcolor v0.3.5
[INFO] [stderr]   Downloaded ns-std-threaded v0.3.0
[INFO] [stderr]   Downloaded trimmer_derive v0.1.0
[INFO] [stderr]   Downloaded abstract-ns v0.4.3
[INFO] [stderr]   Downloaded tokio-core v0.1.15
[INFO] [stderr]   Downloaded tk-easyloop v0.1.1
[INFO] [stderr]   Downloaded futures v0.1.19
[INFO] [stderr]   Downloaded capturing-glob v0.1.1
[INFO] [stderr]   Downloaded tk-bufstream v0.3.0
[INFO] [stderr]   Downloaded itoa v0.4.0
[INFO] [stderr]   Downloaded tk-http v0.3.8
[INFO] [stderr]   Downloaded serde_derive v1.0.33
[INFO] [stderr]   Downloaded quire v0.3.1
[INFO] [stderr]   Downloaded trimmer v0.3.6
[INFO] [stderr]   Downloaded ns-env-config v0.1.0
[INFO] [stderr]   Downloaded ipnetwork v0.12.8
[INFO] [stderr]   Downloaded build_const v0.2.0
[INFO] [stderr]   Downloaded async-slot v0.1.0
[INFO] [stderr]   Downloaded ns-router v0.1.6
[INFO] [stderr]   Downloaded serde_derive_internals v0.21.0
[INFO] [stderr]   Downloaded tokio-reactor v0.1.0
[INFO] [stderr]   Downloaded serde_str v0.1.0
[INFO] [stderr]   Downloaded serde v1.0.33
[INFO] [stderr]   Downloaded ascii v0.7.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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] d33af0c6442c0dd4b031833b2cdfe50244d75355f41dba0f80ff940b86d0b486
[INFO] running `Command { std: "docker" "start" "-a" "d33af0c6442c0dd4b031833b2cdfe50244d75355f41dba0f80ff940b86d0b486", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d33af0c6442c0dd4b031833b2cdfe50244d75355f41dba0f80ff940b86d0b486", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d33af0c6442c0dd4b031833b2cdfe50244d75355f41dba0f80ff940b86d0b486", kill_on_drop: false }`
[INFO] [stdout] d33af0c6442c0dd4b031833b2cdfe50244d75355f41dba0f80ff940b86d0b486
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f268f5852a79c54b958ca50934adf78ba0204e19d65818cda3a9d1e368df2d62
[INFO] running `Command { std: "docker" "start" "-a" "f268f5852a79c54b958ca50934adf78ba0204e19d65818cda3a9d1e368df2d62", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.39
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]    Compiling cc v1.0.8
[INFO] [stderr]     Checking byteorder v1.2.1
[INFO] [stderr]     Checking futures v0.1.19
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]     Checking quick-error v1.2.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]     Checking num-traits v0.2.2
[INFO] [stderr]     Checking serde v1.0.33
[INFO] [stderr]    Compiling regex v0.2.10
[INFO] [stderr]     Checking scoped-tls v0.1.1
[INFO] [stderr]     Checking rustc-demangle v0.1.7
[INFO] [stderr]     Checking stable_deref_trait v1.0.0
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking itoa v0.4.0
[INFO] [stderr]    Compiling build_const v0.2.0
[INFO] [stderr]     Checking argparse v0.2.1
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking ipnetwork v0.12.8
[INFO] [stderr]     Checking netbuf v0.4.0
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking adler32 v1.0.2
[INFO] [stderr]     Checking httparse v1.2.4
[INFO] [stderr]     Checking termcolor v0.3.5
[INFO] [stderr]     Checking sha1 v0.4.0
[INFO] [stderr]     Checking capturing-glob v0.1.1
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]     Checking regex-syntax v0.5.3
[INFO] [stderr]     Checking url v1.7.0
[INFO] [stderr]    Compiling trimmer_derive v0.1.0
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking crossbeam-utils v0.3.2
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling crc v1.7.0
[INFO] [stderr]     Checking combine v2.5.2
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking humannum v0.1.0
[INFO] [stderr]    Compiling cmake v0.1.29
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking net2 v0.2.32
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking atty v0.2.8
[INFO] [stderr]     Checking xattr v0.1.11
[INFO] [stderr]     Checking filetime v0.1.15
[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" "f268f5852a79c54b958ca50934adf78ba0204e19d65818cda3a9d1e368df2d62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f268f5852a79c54b958ca50934adf78ba0204e19d65818cda3a9d1e368df2d62", kill_on_drop: false }`
[INFO] [stdout] f268f5852a79c54b958ca50934adf78ba0204e19d65818cda3a9d1e368df2d62
