[INFO] cloning repository https://github.com/ZelphirKaltstahl/rust-rocket-tutorial
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ZelphirKaltstahl/rust-rocket-tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZelphirKaltstahl%2Frust-rocket-tutorial", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZelphirKaltstahl%2Frust-rocket-tutorial'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 56c5901c5da8747513e35a4fd761a54da6d68b2e
[INFO] checking ZelphirKaltstahl/rust-rocket-tutorial against try#575650af7d7ca88602df28e39d27bf3e456c306e for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZelphirKaltstahl%2Frust-rocket-tutorial" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ZelphirKaltstahl/rust-rocket-tutorial on toolchain 575650af7d7ca88602df28e39d27bf3e456c306e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ZelphirKaltstahl/rust-rocket-tutorial
[INFO] finished tweaking git repo https://github.com/ZelphirKaltstahl/rust-rocket-tutorial
[INFO] tweaked toml for git repo https://github.com/ZelphirKaltstahl/rust-rocket-tutorial written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/ZelphirKaltstahl/rust-rocket-tutorial already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.8
[INFO] [stderr]   Downloaded num_cpus v1.5.1
[INFO] [stderr]   Downloaded cookie v0.6.2
[INFO] [stderr]   Downloaded url v1.5.0
[INFO] [stderr]   Downloaded rocket v0.2.8
[INFO] [stderr]   Downloaded rocket_codegen v0.2.8
[INFO] [stderr]   Downloaded serde v1.0.8
[INFO] [stderr]   Downloaded redox_syscall v0.1.18
[INFO] [stderr]   Downloaded state v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e11fa07b3955743503ee3b883b535facbfa6d56b88cdc9b3bea15ac0c8b2564d
[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" "e11fa07b3955743503ee3b883b535facbfa6d56b88cdc9b3bea15ac0c8b2564d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e11fa07b3955743503ee3b883b535facbfa6d56b88cdc9b3bea15ac0c8b2564d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e11fa07b3955743503ee3b883b535facbfa6d56b88cdc9b3bea15ac0c8b2564d", kill_on_drop: false }`
[INFO] [stdout] e11fa07b3955743503ee3b883b535facbfa6d56b88cdc9b3bea15ac0c8b2564d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c2b27cf1a9d24fca19f9e3389702c4ca5b44287f3f20f9d78dab1a77557355a
[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" "0c2b27cf1a9d24fca19f9e3389702c4ca5b44287f3f20f9d78dab1a77557355a", kill_on_drop: false }`
[INFO] [stderr]    Compiling matches v0.1.6
[INFO] [stderr]    Compiling unicode-normalization v0.1.5
[INFO] [stderr]    Compiling percent-encoding v1.0.0
[INFO] [stderr]    Compiling log v0.3.8
[INFO] [stderr]    Compiling term v0.4.5
[INFO] [stderr]    Compiling httparse v1.2.3
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking serde v1.0.8
[INFO] [stderr]    Compiling num_cpus v1.5.1
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking base64 v0.5.2
[INFO] [stderr]    Compiling serde_derive v1.0.8
[INFO] [stderr]    Compiling unicode-bidi v0.3.3
[INFO] [stderr]    Compiling term-painter v0.2.3
[INFO] [stderr]    Compiling idna v0.1.2
[INFO] [stderr]    Compiling url v1.5.0
[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-1.5.0/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] 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] 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] [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: build failed
[INFO] running `Command { std: "docker" "inspect" "0c2b27cf1a9d24fca19f9e3389702c4ca5b44287f3f20f9d78dab1a77557355a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c2b27cf1a9d24fca19f9e3389702c4ca5b44287f3f20f9d78dab1a77557355a", kill_on_drop: false }`
[INFO] [stdout] 0c2b27cf1a9d24fca19f9e3389702c4ca5b44287f3f20f9d78dab1a77557355a