[INFO] cloning repository https://github.com/Evanjs/grkcheck
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Evanjs/grkcheck" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEvanjs%2Fgrkcheck", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEvanjs%2Fgrkcheck'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1b747c72dfc65110780a2aa9e7d32ef4779db8e3
[INFO] testing Evanjs/grkcheck against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEvanjs%2Fgrkcheck" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Evanjs/grkcheck 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/Evanjs/grkcheck
[INFO] finished tweaking git repo https://github.com/Evanjs/grkcheck
[INFO] tweaked toml for git repo https://github.com/Evanjs/grkcheck written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Evanjs/grkcheck 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] f044f2d5d904b37aef835492339b182cefb183642a9e8101203fee52f5957bfc
[INFO] running `Command { std: "docker" "start" "-a" "f044f2d5d904b37aef835492339b182cefb183642a9e8101203fee52f5957bfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f044f2d5d904b37aef835492339b182cefb183642a9e8101203fee52f5957bfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f044f2d5d904b37aef835492339b182cefb183642a9e8101203fee52f5957bfc", kill_on_drop: false }`
[INFO] [stdout] f044f2d5d904b37aef835492339b182cefb183642a9e8101203fee52f5957bfc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 055da864309faec4be80759198fdd61fdf75a46f515cb88a98fd71a6af1be7e1
[INFO] running `Command { std: "docker" "start" "-a" "055da864309faec4be80759198fdd61fdf75a46f515cb88a98fd71a6af1be7e1", 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]    Compiling libc v0.2.38
[INFO] [stderr]    Compiling version_check v0.1.3
[INFO] [stderr]    Compiling siphasher v0.2.2
[INFO] [stderr]    Compiling cfg-if v0.1.2
[INFO] [stderr]    Compiling dtoa v0.4.2
[INFO] [stderr]    Compiling byteorder v1.2.1
[INFO] [stderr]    Compiling itoa v0.3.4
[INFO] [stderr]    Compiling futures v0.1.18
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]    Compiling lazy_static v1.0.0
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling serde v1.0.27
[INFO] [stderr]    Compiling cc v1.0.5
[INFO] [stderr]    Compiling num-traits v0.2.1
[INFO] [stderr]    Compiling slab v0.3.0
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling lazycell v0.6.0
[INFO] [stderr]    Compiling slab v0.4.0
[INFO] [stderr]    Compiling scoped-tls v0.1.1
[INFO] [stderr]    Compiling openssl v0.9.24
[INFO] [stderr]    Compiling bitflags v0.9.1
[INFO] [stderr]    Compiling mac v0.1.1
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling build_const v0.2.0
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling procedural-masquerade v0.1.5
[INFO] [stderr]    Compiling take v0.1.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.5
[INFO] [stderr]    Compiling utf-8 v0.7.2
[INFO] [stderr]    Compiling regex-syntax v0.3.9
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stderr]    Compiling smallvec v0.2.1
[INFO] [stderr]    Compiling stable_deref_trait v1.0.0
[INFO] [stderr]    Compiling httparse v1.2.4
[INFO] [stderr]    Compiling smallvec v0.6.0
[INFO] [stderr]    Compiling bitflags v1.0.1
[INFO] [stderr]    Compiling nodrop v0.1.12
[INFO] [stderr]    Compiling bitflags v0.4.0
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]    Compiling adler32 v1.0.2
[INFO] [stderr]    Compiling unreachable v0.1.1
[INFO] [stderr]    Compiling log v0.4.1
[INFO] [stderr]    Compiling encoding_rs v0.7.2
[INFO] [stderr]    Compiling dtoa-short v0.3.1
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling crc v1.7.0
[INFO] [stderr]    Compiling debug_unreachable v0.1.1
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling base64 v0.9.0
[INFO] [stderr]    Compiling futf v0.1.3
[INFO] [stderr]    Compiling servo_arc v0.1.1
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling unicase v2.1.0
[INFO] [stderr]    Compiling idna v0.1.4
[INFO] [stderr]    Compiling nix v0.7.0
[INFO] [stderr]    Compiling tendril v0.4.0
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling net2 v0.2.32
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling time v0.1.39
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling bytes v0.4.6
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling libflate v0.1.14
[INFO] [stderr]    Compiling mio v0.6.13
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling openssl-sys v0.9.27
[INFO] [stderr]    Compiling phf_shared v0.7.21
[INFO] [stderr]    Compiling phf v0.7.21
[INFO] [stderr]    Compiling url v1.7.0
[INFO] [stderr]    Compiling mime v0.3.5
[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" "055da864309faec4be80759198fdd61fdf75a46f515cb88a98fd71a6af1be7e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "055da864309faec4be80759198fdd61fdf75a46f515cb88a98fd71a6af1be7e1", kill_on_drop: false }`
[INFO] [stdout] 055da864309faec4be80759198fdd61fdf75a46f515cb88a98fd71a6af1be7e1