[INFO] fetching crate socket-collection 0.4.0...
[INFO] checking socket-collection-0.4.0 against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] extracting crate socket-collection 0.4.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate socket-collection 0.4.0 on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate socket-collection 0.4.0
[INFO] finished tweaking crates.io crate socket-collection 0.4.0
[INFO] tweaked toml for crates.io crate socket-collection 0.4.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ddec3769ba1728837486e5f257217595658e21a99e740b9a6361951eb7477aa
[INFO] running `Command { std: "docker" "start" "-a" "2ddec3769ba1728837486e5f257217595658e21a99e740b9a6361951eb7477aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ddec3769ba1728837486e5f257217595658e21a99e740b9a6361951eb7477aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ddec3769ba1728837486e5f257217595658e21a99e740b9a6361951eb7477aa", kill_on_drop: false }`
[INFO] [stdout] 2ddec3769ba1728837486e5f257217595658e21a99e740b9a6361951eb7477aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f43fc850d68b3d78f306f75e9101ee746a7562d07c0988649b6955da8b537aa
[INFO] running `Command { std: "docker" "start" "-a" "0f43fc850d68b3d78f306f75e9101ee746a7562d07c0988649b6955da8b537aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling openssl v0.10.35
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling arrayref v0.3.6
[INFO] [stderr]    Compiling openssl-probe v0.1.4
[INFO] [stderr]    Compiling byte-tools v0.2.0
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]     Checking unwrap v1.2.1
[INFO] [stderr]    Compiling podio v0.1.7
[INFO] [stderr]     Checking ucd-util v0.1.8
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking crossbeam v0.2.12
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking log-mdc v0.1.0
[INFO] [stderr]     Checking antidote v1.0.0
[INFO] [stderr]     Checking utf8-ranges v1.0.4
[INFO] [stderr]     Checking sha1 v0.2.0
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking slab v0.3.0
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking generic-array v0.9.1
[INFO] [stderr]    Compiling block-buffer v0.3.3
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking tiny-keccak v1.4.4
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]     Checking url v1.5.1
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]     Checking digest v0.7.6
[INFO] [stderr]     Checking crypto-mac v0.6.2
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking pbkdf2 v0.2.3
[INFO] [stderr]     Checking hmac v0.6.3
[INFO] [stderr]     Checking sha2 v0.7.1
[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" "0f43fc850d68b3d78f306f75e9101ee746a7562d07c0988649b6955da8b537aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f43fc850d68b3d78f306f75e9101ee746a7562d07c0988649b6955da8b537aa", kill_on_drop: false }`
[INFO] [stdout] 0f43fc850d68b3d78f306f75e9101ee746a7562d07c0988649b6955da8b537aa