[INFO] cloning repository https://github.com/boustrophedon/rss-downloader
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/boustrophedon/rss-downloader" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fboustrophedon%2Frss-downloader", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fboustrophedon%2Frss-downloader'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] be1c8bf176ef2d3530914803634e44160573999b
[INFO] checking boustrophedon/rss-downloader against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fboustrophedon%2Frss-downloader" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/boustrophedon/rss-downloader on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/boustrophedon/rss-downloader
[INFO] finished tweaking git repo https://github.com/boustrophedon/rss-downloader
[INFO] tweaked toml for git repo https://github.com/boustrophedon/rss-downloader written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/boustrophedon/rss-downloader already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 171a41574c233e706e7ecf2f1425c1f82f6764f81e88ec2933019abeb9fb3098
[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" "171a41574c233e706e7ecf2f1425c1f82f6764f81e88ec2933019abeb9fb3098", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "171a41574c233e706e7ecf2f1425c1f82f6764f81e88ec2933019abeb9fb3098", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "171a41574c233e706e7ecf2f1425c1f82f6764f81e88ec2933019abeb9fb3098", kill_on_drop: false }`
[INFO] [stdout] 171a41574c233e706e7ecf2f1425c1f82f6764f81e88ec2933019abeb9fb3098
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 55ef40e3c674c563b065ac8bbf4c237d5924281c4112d448b5dfc4e0c20645ea
[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" "55ef40e3c674c563b065ac8bbf4c237d5924281c4112d448b5dfc4e0c20645ea", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.39
[INFO] [stderr]    Compiling cc v1.0.8
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]    Compiling openssl v0.9.24
[INFO] [stderr]     Checking scoped-tls v0.1.1
[INFO] [stderr]     Checking serde v1.0.33
[INFO] [stderr]    Compiling build_const v0.2.0
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]    Compiling derive_builder v0.5.1
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking adler32 v1.0.2
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking tokio-executor v0.1.0
[INFO] [stderr]     Checking tokio-service v0.1.0
[INFO] [stderr]     Checking relay v0.1.1
[INFO] [stderr]     Checking encoding_rs v0.7.2
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]     Checking base64 v0.9.0
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]     Checking fern v0.5.4
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking url v1.7.0
[INFO] [stderr]    Compiling crc v1.7.0
[INFO] [stderr]     Checking crossbeam-epoch v0.4.0
[INFO] [stderr]    Compiling quote v0.4.2
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking net2 v0.2.32
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking atty v0.2.8
[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`
[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" "55ef40e3c674c563b065ac8bbf4c237d5924281c4112d448b5dfc4e0c20645ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55ef40e3c674c563b065ac8bbf4c237d5924281c4112d448b5dfc4e0c20645ea", kill_on_drop: false }`
[INFO] [stdout] 55ef40e3c674c563b065ac8bbf4c237d5924281c4112d448b5dfc4e0c20645ea