[INFO] cloning repository https://github.com/jpoles1/monitorblank
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jpoles1/monitorblank" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjpoles1%2Fmonitorblank", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjpoles1%2Fmonitorblank'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4b30a5d7555099f237d2fdfc8f2504cfe812fbfa
[INFO] checking jpoles1/monitorblank against try#1c5262aa6c045a581fb974488793f09ed51fc498 for pr-78376
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjpoles1%2Fmonitorblank" "/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/jpoles1/monitorblank on toolchain 1c5262aa6c045a581fb974488793f09ed51fc498
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1c5262aa6c045a581fb974488793f09ed51fc498" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jpoles1/monitorblank
[INFO] finished tweaking git repo https://github.com/jpoles1/monitorblank
[INFO] tweaked toml for git repo https://github.com/jpoles1/monitorblank written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/jpoles1/monitorblank already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1c5262aa6c045a581fb974488793f09ed51fc498" "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" "+1c5262aa6c045a581fb974488793f09ed51fc498" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 156868348b2d328ba8ef36a30f8748f61e539a684d98225790b46c86f25bd97c
[INFO] running `Command { std: "docker" "start" "-a" "156868348b2d328ba8ef36a30f8748f61e539a684d98225790b46c86f25bd97c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "156868348b2d328ba8ef36a30f8748f61e539a684d98225790b46c86f25bd97c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "156868348b2d328ba8ef36a30f8748f61e539a684d98225790b46c86f25bd97c", kill_on_drop: false }`
[INFO] [stdout] 156868348b2d328ba8ef36a30f8748f61e539a684d98225790b46c86f25bd97c
[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" "+1c5262aa6c045a581fb974488793f09ed51fc498" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb1ccc02cc72b12e2c2da201cc5b695b6554bd4760c8b05aac1808b4c0a3af02
[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" "bb1ccc02cc72b12e2c2da201cc5b695b6554bd4760c8b05aac1808b4c0a3af02", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.19
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking lazy_static v0.1.16
[INFO] [stderr]     Checking hpack v0.2.0
[INFO] [stderr]     Checking conduit-mime-types v0.7.3
[INFO] [stderr]    Compiling unicase v1.4.0
[INFO] [stderr]     Checking idna v0.1.0
[INFO] [stderr]     Checking error v0.1.9
[INFO] [stderr]     Checking solicit v0.4.4
[INFO] [stderr]     Checking time v0.1.35
[INFO] [stderr]     Checking num_cpus v1.2.1
[INFO] [stderr]     Checking num_cpus v0.2.13
[INFO] [stderr]     Checking url v1.2.4
[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-1.2.4/src/form_urlencoded.rs:246:40
[INFO] [stdout]     |
[INFO] [stdout] 244 | impl<'a> Target for ::UrlQuery<'a> {
[INFO] [stdout]     |      -- lifetime `'a` defined here
[INFO] [stdout] 245 |     fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization }
[INFO] [stdout] 246 |     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] running `Command { std: "docker" "inspect" "bb1ccc02cc72b12e2c2da201cc5b695b6554bd4760c8b05aac1808b4c0a3af02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb1ccc02cc72b12e2c2da201cc5b695b6554bd4760c8b05aac1808b4c0a3af02", kill_on_drop: false }`
[INFO] [stdout] bb1ccc02cc72b12e2c2da201cc5b695b6554bd4760c8b05aac1808b4c0a3af02