[INFO] cloning repository https://github.com/mrkline/libgit-rust-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mrkline/libgit-rust-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrkline%2Flibgit-rust-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrkline%2Flibgit-rust-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 585ab0c18523a6f1d44fb89d5a2ab5a9486a078e
[INFO] testing mrkline/libgit-rust-playground against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrkline%2Flibgit-rust-playground" "/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/mrkline/libgit-rust-playground on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mrkline/libgit-rust-playground
[INFO] finished tweaking git repo https://github.com/mrkline/libgit-rust-playground
[INFO] tweaked toml for git repo https://github.com/mrkline/libgit-rust-playground written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/mrkline/libgit-rust-playground already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libz-sys v1.0.4
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9645907e5662679f8e4d319a686065e581450afa4eed1c6a019cf38a09eacee6
[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" "9645907e5662679f8e4d319a686065e581450afa4eed1c6a019cf38a09eacee6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9645907e5662679f8e4d319a686065e581450afa4eed1c6a019cf38a09eacee6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9645907e5662679f8e4d319a686065e581450afa4eed1c6a019cf38a09eacee6", kill_on_drop: false }`
[INFO] [stdout] 9645907e5662679f8e4d319a686065e581450afa4eed1c6a019cf38a09eacee6
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", 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] 7a3775aee26de12c2f748d260c754e823c4b8e0f01657a17442ec75965a036a6
[INFO] running `Command { std: "docker" "start" "-a" "7a3775aee26de12c2f748d260c754e823c4b8e0f01657a17442ec75965a036a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling gcc v0.3.28
[INFO] [stderr]    Compiling libc v0.2.12
[INFO] [stderr]    Compiling matches v0.1.2
[INFO] [stderr]    Compiling unicode-normalization v0.1.2
[INFO] [stderr]    Compiling bitflags v0.1.1
[INFO] [stderr]    Compiling openssl-sys v0.7.13
[INFO] [stderr]    Compiling unicode-bidi v0.2.3
[INFO] [stderr]    Compiling cmake v0.1.17
[INFO] [stderr]    Compiling libz-sys v1.0.4
[INFO] [stderr]    Compiling libssh2-sys v0.1.37
[INFO] [stderr]    Compiling libgit2-sys v0.4.3
[INFO] [stderr]    Compiling idna v0.1.0
[INFO] [stderr]    Compiling url v1.1.1
[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-1.1.1/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` 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" "7a3775aee26de12c2f748d260c754e823c4b8e0f01657a17442ec75965a036a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a3775aee26de12c2f748d260c754e823c4b8e0f01657a17442ec75965a036a6", kill_on_drop: false }`
[INFO] [stdout] 7a3775aee26de12c2f748d260c754e823c4b8e0f01657a17442ec75965a036a6