[INFO] cloning repository https://github.com/mraof/mudengine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mraof/mudengine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmraof%2Fmudengine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmraof%2Fmudengine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c386a99b36d095dcb71b90ba4e9740eb62536491
[INFO] testing mraof/mudengine against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmraof%2Fmudengine" "/workspace/builds/worker-48/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-48/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mraof/mudengine on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mraof/mudengine
[INFO] finished tweaking git repo https://github.com/mraof/mudengine
[INFO] tweaked toml for git repo https://github.com/mraof/mudengine written to /workspace/builds/worker-48/source/Cargo.toml
[INFO] crate git repo https://github.com/mraof/mudengine already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b1276b8d749a6685d7215d16797e90643060df18c20e3ecd2fa379e2d942b79
[INFO] running `Command { std: "docker" "start" "-a" "4b1276b8d749a6685d7215d16797e90643060df18c20e3ecd2fa379e2d942b79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b1276b8d749a6685d7215d16797e90643060df18c20e3ecd2fa379e2d942b79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b1276b8d749a6685d7215d16797e90643060df18c20e3ecd2fa379e2d942b79", kill_on_drop: false }`
[INFO] [stdout] 4b1276b8d749a6685d7215d16797e90643060df18c20e3ecd2fa379e2d942b79
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8143c9e0921ced3e438ab71da4257ff779e242d867bff8935c7a612e1e7a5c3f
[INFO] running `Command { std: "docker" "start" "-a" "8143c9e0921ced3e438ab71da4257ff779e242d867bff8935c7a612e1e7a5c3f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]    Compiling nodrop v0.1.12
[INFO] [stderr]    Compiling memoffset v0.2.1
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]    Compiling serde v1.0.41
[INFO] [stderr]    Compiling slog v2.2.3
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling smallvec v0.6.2
[INFO] [stderr]    Compiling stable_deref_trait v1.1.0
[INFO] [stderr]    Compiling crossbeam v0.2.12
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling lazycell v0.6.0
[INFO] [stderr]    Compiling slab v0.4.0
[INFO] [stderr]    Compiling atom v0.3.5
[INFO] [stderr]    Compiling dtoa v0.4.2
[INFO] [stderr]    Compiling ansi_term v0.9.0
[INFO] [stderr]    Compiling mopa v0.2.2
[INFO] [stderr]    Compiling itoa v0.4.1
[INFO] [stderr]    Compiling take_mut v0.2.2
[INFO] [stderr]    Compiling trackable v0.2.17
[INFO] [stderr]    Compiling slab v0.3.0
[INFO] [stderr]    Compiling httparse v1.2.4
[INFO] [stderr]    Compiling tuple_utils v0.2.0
[INFO] [stderr]    Compiling crossbeam v0.3.2
[INFO] [stderr]    Compiling sha1 v0.6.0
[INFO] [stderr]    Compiling ordermap v0.4.1
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling term_size v0.3.1
[INFO] [stderr]    Compiling time v0.1.40
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling isatty v0.1.8
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling itertools v0.5.10
[INFO] [stderr]    Compiling net2 v0.2.32
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling syn v0.13.1
[INFO] [stderr]    Compiling url v1.7.0
[INFO] [stderr]    Compiling arrayvec v0.4.7
[INFO] [stderr]    Compiling owning_ref v0.3.3
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.10.8
[INFO] [stderr]    Compiling mio v0.6.14
[INFO] [stderr]    Compiling bytes v0.4.6
[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-1.7.0/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` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "8143c9e0921ced3e438ab71da4257ff779e242d867bff8935c7a612e1e7a5c3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8143c9e0921ced3e438ab71da4257ff779e242d867bff8935c7a612e1e7a5c3f", kill_on_drop: false }`
[INFO] [stdout] 8143c9e0921ced3e438ab71da4257ff779e242d867bff8935c7a612e1e7a5c3f