[INFO] cloning repository https://github.com/too-r/discordbot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/too-r/discordbot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftoo-r%2Fdiscordbot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftoo-r%2Fdiscordbot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1e08e9b78ff0e1c6c55e4b2c4e9607283d6f773c
[INFO] checking too-r/discordbot against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftoo-r%2Fdiscordbot" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/too-r/discordbot on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/too-r/discordbot
[INFO] finished tweaking git repo https://github.com/too-r/discordbot
[INFO] tweaked toml for git repo https://github.com/too-r/discordbot written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/too-r/discordbot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serenity v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 80fe46fdc455a971418108ca37139f3a93f0f25e1f168fa7f00bb925a6e794e4
[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" "80fe46fdc455a971418108ca37139f3a93f0f25e1f168fa7f00bb925a6e794e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "80fe46fdc455a971418108ca37139f3a93f0f25e1f168fa7f00bb925a6e794e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80fe46fdc455a971418108ca37139f3a93f0f25e1f168fa7f00bb925a6e794e4", kill_on_drop: false }`
[INFO] [stdout] 80fe46fdc455a971418108ca37139f3a93f0f25e1f168fa7f00bb925a6e794e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3c85eea6b4261e81cd312c5671b698a257de51274b2d7bb6e0d196c9944e2e3
[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" "d3c85eea6b4261e81cd312c5671b698a257de51274b2d7bb6e0d196c9944e2e3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.32
[INFO] [stderr]    Compiling cc v1.0.0
[INFO] [stderr]     Checking log v0.3.8
[INFO] [stderr]     Checking byteorder v1.1.0
[INFO] [stderr]    Compiling openssl v0.9.19
[INFO] [stderr]     Checking num-traits v0.1.40
[INFO] [stderr]     Checking percent-encoding v1.0.0
[INFO] [stderr]     Checking safemem v0.2.0
[INFO] [stderr]     Checking foreign-types v0.2.0
[INFO] [stderr]     Checking httparse v1.2.3
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking serde v1.0.15
[INFO] [stderr]     Checking smallvec v0.4.4
[INFO] [stderr]     Checking sha1 v0.2.0
[INFO] [stderr]     Checking bitflags v1.0.0
[INFO] [stderr]     Checking vec_shift v0.1.0
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]     Checking url v1.5.1
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]    Compiling phf_shared v0.7.21
[INFO] [stderr]     Checking base64 v0.6.0
[INFO] [stderr]     Checking phf v0.7.21
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]     Checking rand v0.3.17
[INFO] [stderr]     Checking time v0.1.38
[INFO] [stderr]     Checking num_cpus v1.7.0
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]     Checking num-integer v0.1.35
[INFO] [stderr]    Compiling mime_guess v1.8.2
[INFO] [stderr]     Checking num-iter v0.1.34
[INFO] [stderr]    Compiling openssl-sys v0.9.19
[INFO] [stderr]    Compiling miniz-sys v0.1.10
[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-1.5.1/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] 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" "d3c85eea6b4261e81cd312c5671b698a257de51274b2d7bb6e0d196c9944e2e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3c85eea6b4261e81cd312c5671b698a257de51274b2d7bb6e0d196c9944e2e3", kill_on_drop: false }`
[INFO] [stdout] d3c85eea6b4261e81cd312c5671b698a257de51274b2d7bb6e0d196c9944e2e3