[INFO] cloning repository https://github.com/Giels/topic
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Giels/topic" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGiels%2Ftopic", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGiels%2Ftopic'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 403ff1f88beb708f74965f40fd4cbc9184081bbc
[INFO] testing Giels/topic 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%2FGiels%2Ftopic" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Giels/topic 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/Giels/topic
[INFO] finished tweaking git repo https://github.com/Giels/topic
[INFO] tweaked toml for git repo https://github.com/Giels/topic written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/Giels/topic 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/sfackler/rust-postgres-array`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded route-recognizer v0.1.12
[INFO] [stderr]   Downloaded httparse v1.2.4
[INFO] [stderr]   Downloaded serde v1.0.27
[INFO] [stderr]   Downloaded byteorder v1.2.1
[INFO] [stderr]   Downloaded postgres-shared v0.4.1
[INFO] [stderr]   Downloaded postgres-protocol v0.3.2
[INFO] [stderr]   Downloaded mio v0.6.13
[INFO] [stderr]   Downloaded smallvec v0.2.1
[INFO] [stderr]   Downloaded bitflags v0.5.0
[INFO] [stderr]   Downloaded hoedown v6.0.0
[INFO] [stderr]   Downloaded base64 v0.9.0
[INFO] [stderr]   Downloaded tokio-core v0.1.12
[INFO] [stderr]   Downloaded bytes v0.4.6
[INFO] [stderr]   Downloaded hex v0.2.0
[INFO] [stderr]   Downloaded num-complex v0.1.42
[INFO] [stderr]   Downloaded num-bigint v0.1.43
[INFO] [stderr]   Downloaded itoa v0.3.4
[INFO] [stderr]   Downloaded slab v0.4.0
[INFO] [stderr]   Downloaded tokio-service v0.1.0
[INFO] [stderr]   Downloaded crypto-mac v0.5.2
[INFO] [stderr]   Downloaded hmac v0.5.0
[INFO] [stderr]   Downloaded sha2 v0.7.0
[INFO] [stderr]   Downloaded remove_dir_all v0.3.0
[INFO] [stderr]   Downloaded tempdir v0.3.6
[INFO] [stderr]   Downloaded serde_json v1.0.9
[INFO] [stderr]   Downloaded urlencoded v0.6.0
[INFO] [stderr]   Downloaded num-traits v0.2.0
[INFO] [stderr]   Downloaded fallible-iterator v0.1.4
[INFO] [stderr]   Downloaded serde_derive v1.0.27
[INFO] [stderr]   Downloaded mime v0.3.5
[INFO] [stderr]   Downloaded digest v0.7.2
[INFO] [stderr]   Downloaded toml v0.4.5
[INFO] [stderr]   Downloaded relay v0.1.1
[INFO] [stderr]   Downloaded take v0.1.0
[INFO] [stderr]   Downloaded futures v0.1.18
[INFO] [stderr]   Downloaded md5 v0.3.7
[INFO] [stderr]   Downloaded tokio-io v0.1.5
[INFO] [stderr]   Downloaded tokio-proto v0.1.1
[INFO] [stderr]   Downloaded r2d2 v0.8.2
[INFO] [stderr]   Downloaded regex v0.2.6
[INFO] [stderr]   Downloaded scheduled-thread-pool v0.2.0
[INFO] [stderr]   Downloaded serde_derive_internals v0.19.0
[INFO] [stderr]   Downloaded iron v0.6.0
[INFO] [stderr]   Downloaded r2d2_postgres v0.14.0
[INFO] [stderr]   Downloaded persistent v0.4.0
[INFO] [stderr]   Downloaded mime_guess v1.8.3
[INFO] [stderr]   Downloaded router v0.6.0
[INFO] [stderr]   Downloaded unicase v2.1.0
[INFO] [stderr]   Downloaded params v0.8.0
[INFO] [stderr]   Downloaded bodyparser v0.8.0
[INFO] [stderr]   Downloaded twoway v0.1.7
[INFO] [stderr]   Downloaded hyper v0.11.18
[INFO] [stderr]   Downloaded socket2 v0.3.1
[INFO] [stderr]   Downloaded postgres v0.15.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 59cc42d6b6cd6edd521d207276754f8a1fb473acf0de91e6cc9b92234c3a72fc
[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" "59cc42d6b6cd6edd521d207276754f8a1fb473acf0de91e6cc9b92234c3a72fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "59cc42d6b6cd6edd521d207276754f8a1fb473acf0de91e6cc9b92234c3a72fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59cc42d6b6cd6edd521d207276754f8a1fb473acf0de91e6cc9b92234c3a72fc", kill_on_drop: false }`
[INFO] [stdout] 59cc42d6b6cd6edd521d207276754f8a1fb473acf0de91e6cc9b92234c3a72fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 0026fff4aabad1f376e5bca201364fc2a7f24df9f6b7f8316848b8fb7e51aa33
[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" "0026fff4aabad1f376e5bca201364fc2a7f24df9f6b7f8316848b8fb7e51aa33", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.36
[INFO] [stderr]    Compiling num-traits v0.2.0
[INFO] [stderr]    Compiling serde v1.0.27
[INFO] [stderr]    Compiling constant_time_eq v0.1.3
[INFO] [stderr]    Compiling modifier v0.1.0
[INFO] [stderr]    Compiling fallible-iterator v0.1.4
[INFO] [stderr]    Compiling md5 v0.3.7
[INFO] [stderr]    Compiling scoped-tls v0.1.0
[INFO] [stderr]    Compiling route-recognizer v0.1.12
[INFO] [stderr]    Compiling base64 v0.6.0
[INFO] [stderr]    Compiling hoedown v6.0.0
[INFO] [stderr]    Compiling scheduled-thread-pool v0.2.0
[INFO] [stderr]    Compiling typenum v1.9.0
[INFO] [stderr]    Compiling stringprep v0.1.2
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stderr]    Compiling url v1.6.0
[INFO] [stderr]    Compiling plugin v0.2.6
[INFO] [stderr]    Compiling serde_derive_internals v0.19.0
[INFO] [stderr]    Compiling remove_dir_all v0.3.0
[INFO] [stderr]    Compiling r2d2 v0.8.2
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling time v0.1.39
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling net2 v0.2.31
[INFO] [stderr]    Compiling socket2 v0.3.1
[INFO] [stderr]    Compiling buf_redux v0.6.3
[INFO] [stderr]    Compiling num-integer v0.1.36
[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-1.6.0/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" "0026fff4aabad1f376e5bca201364fc2a7f24df9f6b7f8316848b8fb7e51aa33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0026fff4aabad1f376e5bca201364fc2a7f24df9f6b7f8316848b8fb7e51aa33", kill_on_drop: false }`
[INFO] [stdout] 0026fff4aabad1f376e5bca201364fc2a7f24df9f6b7f8316848b8fb7e51aa33