[INFO] cloning repository https://github.com/eagletmt/fastladder-bookwalker
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/eagletmt/fastladder-bookwalker" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feagletmt%2Ffastladder-bookwalker", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feagletmt%2Ffastladder-bookwalker'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 58f705ec21c44513aac905830b09a7d4627af0ae
[INFO] testing eagletmt/fastladder-bookwalker against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feagletmt%2Ffastladder-bookwalker" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/eagletmt/fastladder-bookwalker on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/eagletmt/fastladder-bookwalker
[INFO] finished tweaking git repo https://github.com/eagletmt/fastladder-bookwalker
[INFO] tweaked toml for git repo https://github.com/eagletmt/fastladder-bookwalker written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/eagletmt/fastladder-bookwalker already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hyper-rustls v0.6.0
[INFO] [stderr]   Downloaded webpki v0.12.1
[INFO] [stderr]   Downloaded rustls v0.8.0
[INFO] [stderr]   Downloaded bit-vec v0.4.3
[INFO] [stderr]   Downloaded select v0.4.0
[INFO] [stderr]   Downloaded serde v1.0.5
[INFO] [stderr]   Downloaded webpki-roots v0.10.0
[INFO] [stderr]   Downloaded html5ever v0.14.1
[INFO] [stderr]   Downloaded ring v0.9.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b6811b253d8c38a81708707316b68fe3a56d1df218942a5b2867f4da0b9b57ff
[INFO] running `Command { std: "docker" "start" "-a" "b6811b253d8c38a81708707316b68fe3a56d1df218942a5b2867f4da0b9b57ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b6811b253d8c38a81708707316b68fe3a56d1df218942a5b2867f4da0b9b57ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6811b253d8c38a81708707316b68fe3a56d1df218942a5b2867f4da0b9b57ff", kill_on_drop: false }`
[INFO] [stdout] b6811b253d8c38a81708707316b68fe3a56d1df218942a5b2867f4da0b9b57ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] af0b7cf4cb8c00bb4ece71c19708fb851e96f242562a575a55a6e25fddeb23b6
[INFO] running `Command { std: "docker" "start" "-a" "af0b7cf4cb8c00bb4ece71c19708fb851e96f242562a575a55a6e25fddeb23b6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.22
[INFO] [stderr]    Compiling siphasher v0.2.2
[INFO] [stderr]    Compiling rayon-core v1.0.0
[INFO] [stderr]    Compiling matches v0.1.4
[INFO] [stderr]    Compiling deque v0.3.2
[INFO] [stderr]    Compiling gcc v0.3.46
[INFO] [stderr]    Compiling untrusted v0.5.0
[INFO] [stderr]    Compiling serde v0.9.15
[INFO] [stderr]    Compiling unicode-normalization v0.1.4
[INFO] [stderr]    Compiling byteorder v1.0.0
[INFO] [stderr]    Compiling httparse v1.2.2
[INFO] [stderr]    Compiling bit-vec v0.4.3
[INFO] [stderr]    Compiling ansi_term v0.9.0
[INFO] [stderr]    Compiling itoa v0.3.1
[INFO] [stderr]    Compiling dtoa v0.4.1
[INFO] [stderr]    Compiling unicode-segmentation v1.1.0
[INFO] [stderr]    Compiling serde v1.0.5
[INFO] [stderr]    Compiling strsim v0.6.0
[INFO] [stderr]    Compiling unreachable v0.1.1
[INFO] [stderr]    Compiling mime v0.2.4
[INFO] [stderr]    Compiling unicode-bidi v0.2.5
[INFO] [stderr]    Compiling utf-8 v0.6.0
[INFO] [stderr]    Compiling unicase v1.4.0
[INFO] [stderr]    Compiling hyper v0.10.10
[INFO] [stderr]    Compiling phf_shared v0.7.21
[INFO] [stderr]    Compiling base64 v0.5.2
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling bit-set v0.4.0
[INFO] [stderr]    Compiling debug_unreachable v0.1.1
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling num_cpus v1.4.0
[INFO] [stderr]    Compiling time v0.1.37
[INFO] [stderr]    Compiling atty v0.2.2
[INFO] [stderr]    Compiling term_size v0.3.0
[INFO] [stderr]    Compiling phf v0.7.21
[INFO] [stderr]    Compiling futf v0.1.3
[INFO] [stderr]    Compiling clap v2.24.2
[INFO] [stderr]    Compiling idna v0.1.1
[INFO] [stderr]    Compiling tendril v0.2.4
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]    Compiling string_cache_codegen v0.3.1
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]    Compiling rayon v0.7.0
[INFO] [stderr]    Compiling url v1.4.0
[INFO] [stderr]    Compiling string_cache v0.4.0
[INFO] [stderr]    Compiling html5ever-atoms v0.2.2
[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-1.4.0/src/form_urlencoded.rs:246:40
[INFO] [stdout]     |
[INFO] [stdout] 244 | impl<'a> Target for ::UrlQuery<'a> {
[INFO] [stdout]     |      -- lifetime `'a` defined here
[INFO] [stdout] 245 |     fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization }
[INFO] [stdout] 246 |     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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "af0b7cf4cb8c00bb4ece71c19708fb851e96f242562a575a55a6e25fddeb23b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af0b7cf4cb8c00bb4ece71c19708fb851e96f242562a575a55a6e25fddeb23b6", kill_on_drop: false }`
[INFO] [stdout] af0b7cf4cb8c00bb4ece71c19708fb851e96f242562a575a55a6e25fddeb23b6