[INFO] cloning repository https://github.com/mrthankyou/rust-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mrthankyou/rust-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrthankyou%2Frust-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrthankyou%2Frust-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d6c5dba8407b9487db6805ee9e14b6b49fefbccb
[INFO] testing mrthankyou/rust-example against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrthankyou%2Frust-example" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mrthankyou/rust-example on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mrthankyou/rust-example
[INFO] finished tweaking git repo https://github.com/mrthankyou/rust-example
[INFO] tweaked toml for git repo https://github.com/mrthankyou/rust-example written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/mrthankyou/rust-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/steffengy/tiberius`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hex v0.2.0
[INFO] [stderr]   Downloaded libc v0.2.23
[INFO] [stderr]   Downloaded chrono v0.3.0
[INFO] [stderr]   Downloaded winutil v0.1.0
[INFO] [stderr]   Downloaded semver v0.6.0
[INFO] [stderr]   Downloaded base64 v0.5.2
[INFO] [stderr]   Downloaded cfg-if v0.1.0
[INFO] [stderr]   Downloaded futures-state-stream v0.1.0
[INFO] [stderr]   Downloaded num-iter v0.1.33
[INFO] [stderr]   Downloaded hostname v0.1.3
[INFO] [stderr]   Downloaded cookie v0.8.1
[INFO] [stderr]   Downloaded serde_derive_internals v0.15.0
[INFO] [stderr]   Downloaded matches v0.1.4
[INFO] [stderr]   Downloaded hyper v0.10.10
[INFO] [stderr]   Downloaded dotenv v0.10.1
[INFO] [stderr]   Downloaded derive-error-chain v0.10.1
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[INFO] [stderr]   Downloaded byteorder v1.0.0
[INFO] [stderr]   Downloaded thread_local v0.3.3
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[INFO] [stderr]   Downloaded httparse v1.2.2
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[INFO] [stderr]   Downloaded jwt v0.4.0
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[INFO] [stderr]   Downloaded serde_derive v1.0.7
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[INFO] [stderr]   Downloaded serde_json v1.0.2
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[INFO] [stderr]   Downloaded num-integer v0.1.34
[INFO] [stderr]   Downloaded num v0.1.37
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[INFO] [stderr]   Downloaded foreign-types v0.2.0
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[INFO] [stderr]   Downloaded futures v0.1.13
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[INFO] [stderr]   Downloaded serde v1.0.7
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9c91e8fbacbdc9178c6d6dc7c175917ceb81b4a919a506a5d87b8fbb75e73329
[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" "9c91e8fbacbdc9178c6d6dc7c175917ceb81b4a919a506a5d87b8fbb75e73329", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c91e8fbacbdc9178c6d6dc7c175917ceb81b4a919a506a5d87b8fbb75e73329", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c91e8fbacbdc9178c6d6dc7c175917ceb81b4a919a506a5d87b8fbb75e73329", kill_on_drop: false }`
[INFO] [stdout] 9c91e8fbacbdc9178c6d6dc7c175917ceb81b4a919a506a5d87b8fbb75e73329
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 11f67558f6f934641cd45769ef245e28468864c5a606247ddcc4911f029c729c
[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" "11f67558f6f934641cd45769ef245e28468864c5a606247ddcc4911f029c729c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.23
[INFO] [stderr]    Compiling num-traits v0.1.37
[INFO] [stderr]    Compiling serde v1.0.7
[INFO] [stderr]    Compiling cc v1.0.1
[INFO] [stderr]    Compiling log v0.3.7
[INFO] [stderr]    Compiling gcc v0.3.46
[INFO] [stderr]    Compiling pq-sys v0.4.4
[INFO] [stderr]    Compiling futures v0.1.13
[INFO] [stderr]    Compiling httparse v1.2.2
[INFO] [stderr]    Compiling hex v0.2.0
[INFO] [stderr]    Compiling iis v0.1.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.1
[INFO] [stderr]    Compiling base64 v0.5.2
[INFO] [stderr]    Compiling slug v0.1.2
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling hyper v0.10.10
[INFO] [stderr]    Compiling mime v0.2.4
[INFO] [stderr]    Compiling idna v0.1.2
[INFO] [stderr]    Compiling time v0.1.37
[INFO] [stderr]    Compiling memchr v1.0.1
[INFO] [stderr]    Compiling thread-id v3.1.0
[INFO] [stderr]    Compiling iovec v0.1.0
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling net2 v0.2.29
[INFO] [stderr]    Compiling num_cpus v1.4.0
[INFO] [stderr]    Compiling hostname v0.1.3
[INFO] [stderr]    Compiling num-integer v0.1.34
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling aho-corasick v0.6.3
[INFO] [stderr]    Compiling thread_local v0.3.3
[INFO] [stderr]    Compiling bytes v0.4.3
[INFO] [stderr]    Compiling futures-state-stream v0.1.0
[INFO] [stderr]    Compiling num-iter v0.1.33
[INFO] [stderr]    Compiling cookie v0.8.1
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling mio v0.6.7
[INFO] [stderr]    Compiling num v0.1.37
[INFO] [stderr]    Compiling regex v0.2.2
[INFO] [stderr]    Compiling tokio-io v0.1.1
[INFO] [stderr]    Compiling chrono v0.3.0
[INFO] [stderr]    Compiling url v1.4.0
[INFO] [stderr]    Compiling tokio-core v0.1.7
[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-1.4.0/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] [stderr] error: could not compile `url`
[INFO] [stdout] For more information about this error, try `rustc --explain E0713`.
[INFO] [stdout] 
[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" "11f67558f6f934641cd45769ef245e28468864c5a606247ddcc4911f029c729c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11f67558f6f934641cd45769ef245e28468864c5a606247ddcc4911f029c729c", kill_on_drop: false }`
[INFO] [stdout] 11f67558f6f934641cd45769ef245e28468864c5a606247ddcc4911f029c729c