[INFO] cloning repository https://github.com/MSleepyPanda/explain-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MSleepyPanda/explain-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMSleepyPanda%2Fexplain-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMSleepyPanda%2Fexplain-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 10522cf5c80910dfa6a0c1db49360ecef247cf89
[INFO] testing MSleepyPanda/explain-rs against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMSleepyPanda%2Fexplain-rs" "/workspace/builds/worker-41/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-41/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MSleepyPanda/explain-rs on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MSleepyPanda/explain-rs
[INFO] finished tweaking git repo https://github.com/MSleepyPanda/explain-rs
[INFO] tweaked toml for git repo https://github.com/MSleepyPanda/explain-rs written to /workspace/builds/worker-41/source/Cargo.toml
[INFO] crate git repo https://github.com/MSleepyPanda/explain-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--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/shepmaster/fuzzy-pickles`
[INFO] [stderr]     Updating git repository `https://github.com/servo/rust-url`
[INFO] [stderr]     Updating git repository `https://github.com/shepmaster/peresil`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.24
[INFO] [stderr]   Downloaded serde_derive_internals v0.18.0
[INFO] [stderr]   Downloaded sha1 v0.3.0
[INFO] [stderr]   Downloaded stdweb v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cb050407fb1db7fe29de41352bfa302c491ffeae96272fc03276fa02243d591b
[INFO] running `Command { std: "docker" "start" "-a" "cb050407fb1db7fe29de41352bfa302c491ffeae96272fc03276fa02243d591b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb050407fb1db7fe29de41352bfa302c491ffeae96272fc03276fa02243d591b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb050407fb1db7fe29de41352bfa302c491ffeae96272fc03276fa02243d591b", kill_on_drop: false }`
[INFO] [stdout] cb050407fb1db7fe29de41352bfa302c491ffeae96272fc03276fa02243d591b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 630e7c1a322efbcb27e2c2b19a17c165182a758d50c0c43809ddec0c4f2e8138
[INFO] running `Command { std: "docker" "start" "-a" "630e7c1a322efbcb27e2c2b19a17c165182a758d50c0c43809ddec0c4f2e8138", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling matches v0.1.6
[INFO] [stderr]    Compiling serde v1.0.24
[INFO] [stderr]    Compiling unicode-normalization v0.1.5
[INFO] [stderr]    Compiling dtoa v0.4.2
[INFO] [stderr]    Compiling num-traits v0.1.41
[INFO] [stderr]    Compiling itoa v0.3.4
[INFO] [stderr]    Compiling peresil v0.3.0 (https://github.com/shepmaster/peresil#6e4f794b)
[INFO] [stderr]    Compiling percent-encoding v1.0.1 (https://github.com/servo/rust-url#027450de)
[INFO] [stderr]    Compiling either v1.4.0
[INFO] [stderr]    Compiling lazy_static v1.0.0
[INFO] [stderr]    Compiling sha1 v0.3.0
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling idna v0.1.4 (https://github.com/servo/rust-url#027450de)
[INFO] [stderr]    Compiling itertools v0.7.5
[INFO] [stderr]    Compiling serde_derive_internals v0.18.0
[INFO] [stderr]    Compiling fuzzy-pickles-derive v0.1.0 (https://github.com/shepmaster/fuzzy-pickles#abf5ae5b)
[INFO] [stderr]    Compiling url v1.6.1 (https://github.com/servo/rust-url#027450de)
[INFO] [stdout] error[E0713]: borrow may still be in use when destructor runs
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/rust-url-3ddac0958e207dae/027450d/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] [stderr] error: could not compile `url` due to 2 previous errors
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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" "630e7c1a322efbcb27e2c2b19a17c165182a758d50c0c43809ddec0c4f2e8138", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "630e7c1a322efbcb27e2c2b19a17c165182a758d50c0c43809ddec0c4f2e8138", kill_on_drop: false }`
[INFO] [stdout] 630e7c1a322efbcb27e2c2b19a17c165182a758d50c0c43809ddec0c4f2e8138