[INFO] cloning repository https://github.com/chriserin/artbot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chriserin/artbot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchriserin%2Fartbot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchriserin%2Fartbot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 83be63573eb0fcc5a152fa23f093035b0f467ef5
[INFO] checking chriserin/artbot against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchriserin%2Fartbot" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chriserin/artbot on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/chriserin/artbot
[INFO] finished tweaking git repo https://github.com/chriserin/artbot
[INFO] tweaked toml for git repo https://github.com/chriserin/artbot written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/chriserin/artbot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4413fa449e317e3e4c902a812aa4253ea9fd7fdf65ce3f24448cd30f91ceb703
[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" "4413fa449e317e3e4c902a812aa4253ea9fd7fdf65ce3f24448cd30f91ceb703", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4413fa449e317e3e4c902a812aa4253ea9fd7fdf65ce3f24448cd30f91ceb703", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4413fa449e317e3e4c902a812aa4253ea9fd7fdf65ce3f24448cd30f91ceb703", kill_on_drop: false }`
[INFO] [stdout] 4413fa449e317e3e4c902a812aa4253ea9fd7fdf65ce3f24448cd30f91ceb703
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 232774ab3eada2a9bc751eba022cf35620c5492d33d4cbfe56a978d68cf5172d
[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" "232774ab3eada2a9bc751eba022cf35620c5492d33d4cbfe56a978d68cf5172d", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.23
[INFO] [stderr]     Checking num-traits v0.1.39
[INFO] [stderr]     Checking lazy_static v0.2.8
[INFO] [stderr]    Compiling version_check v0.1.2
[INFO] [stderr]    Compiling rayon-core v1.0.2
[INFO] [stderr]     Checking unicode-normalization v0.1.4
[INFO] [stderr]     Checking deque v0.3.2
[INFO] [stderr]     Checking percent-encoding v1.0.0
[INFO] [stderr]     Checking adler32 v1.0.0
[INFO] [stderr]     Checking inflate v0.2.0
[INFO] [stderr]     Checking color_quant v1.0.0
[INFO] [stderr]     Checking route-recognizer v0.1.12
[INFO] [stderr]     Checking scoped_threadpool v0.1.7
[INFO] [stderr]     Checking unicode-bidi v0.3.3
[INFO] [stderr]     Checking base64 v0.5.2
[INFO] [stderr]     Checking conduit-mime-types v0.7.3
[INFO] [stderr]     Checking error v0.1.9
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking deflate v0.7.11
[INFO] [stderr]     Checking gif v0.9.1
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking num_cpus v1.5.1
[INFO] [stderr]     Checking time v0.1.37
[INFO] [stderr]     Checking num-integer v0.1.34
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking num-complex v0.1.38
[INFO] [stderr]     Checking num-iter v0.1.33
[INFO] [stderr]     Checking idna v0.1.2
[INFO] [stderr]     Checking png v0.7.0
[INFO] [stderr]     Checking num-bigint v0.1.39
[INFO] [stderr]     Checking rayon v0.7.1
[INFO] [stderr]     Checking num-rational v0.1.38
[INFO] [stderr]     Checking num v0.1.39
[INFO] [stderr]     Checking url v1.5.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.12
[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-1.5.0/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] 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" "232774ab3eada2a9bc751eba022cf35620c5492d33d4cbfe56a978d68cf5172d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "232774ab3eada2a9bc751eba022cf35620c5492d33d4cbfe56a978d68cf5172d", kill_on_drop: false }`
[INFO] [stdout] 232774ab3eada2a9bc751eba022cf35620c5492d33d4cbfe56a978d68cf5172d