[INFO] cloning repository https://github.com/mre/lqip
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mre/lqip" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmre%2Flqip", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmre%2Flqip'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] be0cffd5b5f211edd7d5898f014e46e8e1c4bac4
[INFO] testing mre/lqip against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmre%2Flqip" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mre/lqip on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mre/lqip
[INFO] finished tweaking git repo https://github.com/mre/lqip
[INFO] tweaked toml for git repo https://github.com/mre/lqip written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/mre/lqip already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fuchsia-zircon-sys v0.3.2
[INFO] [stderr]   Downloaded bit-set v0.4.0
[INFO] [stderr]   Downloaded duct v0.9.2
[INFO] [stderr]   Downloaded string_cache_codegen v0.4.0
[INFO] [stderr]   Downloaded select v0.4.2
[INFO] [stderr]   Downloaded redox_syscall v0.1.34
[INFO] [stderr]   Downloaded futf v0.1.3
[INFO] [stderr]   Downloaded utf-8 v0.7.1
[INFO] [stderr]   Downloaded tendril v0.3.1
[INFO] [stderr]   Downloaded rand v0.3.19
[INFO] [stderr]   Downloaded string_cache v0.6.2
[INFO] [stderr]   Downloaded os_pipe v0.6.0
[INFO] [stderr]   Downloaded html5ever v0.18.0
[INFO] [stderr]   Downloaded clap v2.29.0
[INFO] [stderr]   Downloaded winapi v0.3.3
[INFO] [stderr]   Downloaded shared_child v0.3.2
[INFO] [stderr]   Downloaded bit-vec v0.4.4
[INFO] [stderr]   Downloaded markup5ever v0.3.2
[INFO] [stderr]   Downloaded regex v0.2.5
[INFO] [stderr]   Downloaded libc v0.2.35
[INFO] [stderr]   Downloaded winapi-i686-pc-windows-gnu v0.3.2
[INFO] [stderr]   Downloaded fuchsia-zircon v0.3.2
[INFO] [stderr]   Downloaded winapi-x86_64-pc-windows-gnu v0.3.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 83b04ed2d2d11e38f2a1ee8c26a7432911190005c427999393019c0912c304df
[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" "83b04ed2d2d11e38f2a1ee8c26a7432911190005c427999393019c0912c304df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "83b04ed2d2d11e38f2a1ee8c26a7432911190005c427999393019c0912c304df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83b04ed2d2d11e38f2a1ee8c26a7432911190005c427999393019c0912c304df", kill_on_drop: false }`
[INFO] [stdout] 83b04ed2d2d11e38f2a1ee8c26a7432911190005c427999393019c0912c304df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] 2e719b11ea3f1f9192be038de3e419dcf570997d0c7bafbea1429b506fa6ab5d
[INFO] running `Command { std: "docker" "start" "-a" "2e719b11ea3f1f9192be038de3e419dcf570997d0c7bafbea1429b506fa6ab5d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.35
[INFO] [stderr]    Compiling ansi_term v0.10.2
[INFO] [stderr]    Compiling phf_shared v0.7.21
[INFO] [stderr]    Compiling unreachable v0.1.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling num-integer v0.1.35
[INFO] [stderr]    Compiling utf-8 v0.7.1
[INFO] [stderr]    Compiling slug v0.1.2
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stderr]    Compiling url v1.6.0
[INFO] [stderr]    Compiling debug_unreachable v0.1.1
[INFO] [stderr]    Compiling phf v0.7.21
[INFO] [stderr]    Compiling num-iter v0.1.34
[INFO] [stderr]    Compiling futf v0.1.3
[INFO] [stderr]    Compiling num v0.1.41
[INFO] [stderr]    Compiling rand v0.3.19
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling time v0.1.39
[INFO] [stderr]    Compiling nix v0.9.0
[INFO] [stderr]    Compiling atty v0.2.6
[INFO] [stderr]    Compiling shared_child v0.3.2
[INFO] [stderr]    Compiling tendril v0.3.1
[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-1.6.0/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] [stderr]    Compiling clap v2.29.0
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[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" "2e719b11ea3f1f9192be038de3e419dcf570997d0c7bafbea1429b506fa6ab5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e719b11ea3f1f9192be038de3e419dcf570997d0c7bafbea1429b506fa6ab5d", kill_on_drop: false }`
[INFO] [stdout] 2e719b11ea3f1f9192be038de3e419dcf570997d0c7bafbea1429b506fa6ab5d