[INFO] cloning repository https://github.com/tmandry/rustbot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tmandry/rustbot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftmandry%2Frustbot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftmandry%2Frustbot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 87cf26bfbda4bf3494a72e0b893627ecd60b70d0
[INFO] checking tmandry/rustbot against try#894d32a5432c6a6461bb2aac7c3d5f2e87dce83f for pr-77015
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftmandry%2Frustbot" "/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/tmandry/rustbot on toolchain 894d32a5432c6a6461bb2aac7c3d5f2e87dce83f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tmandry/rustbot
[INFO] finished tweaking git repo https://github.com/tmandry/rustbot
[INFO] tweaked toml for git repo https://github.com/tmandry/rustbot written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/tmandry/rustbot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6044e66e467188e8109835d042f919053fb74e6ba88fc7af2bf4264a187e87d6
[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" "6044e66e467188e8109835d042f919053fb74e6ba88fc7af2bf4264a187e87d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6044e66e467188e8109835d042f919053fb74e6ba88fc7af2bf4264a187e87d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6044e66e467188e8109835d042f919053fb74e6ba88fc7af2bf4264a187e87d6", kill_on_drop: false }`
[INFO] [stdout] 6044e66e467188e8109835d042f919053fb74e6ba88fc7af2bf4264a187e87d6
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 02d88d75aade294aa4f01cc32b8e3f4fe6c0ebef2c7b0bfe4641f14800a3c97c
[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" "02d88d75aade294aa4f01cc32b8e3f4fe6c0ebef2c7b0bfe4641f14800a3c97c", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.15
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[INFO] [stderr]     Checking tokio-io v0.1.6
[INFO] [stderr]     Checking http v0.1.13
[INFO] [stderr]     Checking crossbeam-deque v0.6.1
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[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling openssl-sys v0.9.36
[INFO] [stderr]    Compiling libz-sys v1.0.18
[INFO] [stderr]    Compiling curl-sys v0.4.5
[INFO] [stderr]    Compiling miniz-sys v0.1.10
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]     Checking uuid v0.7.1
[INFO] [stderr]    Compiling syn v0.13.7
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]     Checking parking_lot v0.5.5
[INFO] [stderr]     Checking url v1.7.0
[INFO] [stderr]     Checking tokio-threadpool v0.1.7
[INFO] [stderr]     Checking mime v0.3.7
[INFO] [stderr]     Checking mio-uds v0.6.6
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]     Checking tokio-reactor v0.1.1
[INFO] [stderr]    Compiling phf_generator v0.7.22
[INFO] [stderr]     Checking phf v0.7.22
[INFO] [stderr]     Checking libflate v0.1.18
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]     Checking crossbeam-channel v0.1.3
[INFO] [stderr]    Compiling syn v0.15.8
[INFO] [stderr]    Compiling phf_codegen v0.7.22
[INFO] [stderr]     Checking tokio-udp v0.1.0
[INFO] [stderr]     Checking tokio-tcp v0.1.0
[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" "02d88d75aade294aa4f01cc32b8e3f4fe6c0ebef2c7b0bfe4641f14800a3c97c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02d88d75aade294aa4f01cc32b8e3f4fe6c0ebef2c7b0bfe4641f14800a3c97c", kill_on_drop: false }`
[INFO] [stdout] 02d88d75aade294aa4f01cc32b8e3f4fe6c0ebef2c7b0bfe4641f14800a3c97c