[INFO] fetching crate imgui-gfx-hal 0.1.2...
[INFO] testing imgui-gfx-hal-0.1.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate imgui-gfx-hal 0.1.2 into /workspace/builds/worker-18/source
[INFO] validating manifest of crates.io crate imgui-gfx-hal 0.1.2 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate imgui-gfx-hal 0.1.2
[INFO] finished tweaking crates.io crate imgui-gfx-hal 0.1.2
[INFO] tweaked toml for crates.io crate imgui-gfx-hal 0.1.2 written to /workspace/builds/worker-18/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gfx-hal v0.1.0
[INFO] [stderr]   Downloaded ash v0.24.4
[INFO] [stderr]   Downloaded gfx-backend-vulkan v0.1.0
[INFO] [stderr]   Downloaded imgui v0.0.23
[INFO] [stderr]   Downloaded imgui-sys v0.0.23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7641322db9fd05b724c6a673214eab7b5e7cb3570f0271e19b51ae0bcb6a2633
[INFO] running `Command { std: "docker" "start" "-a" "7641322db9fd05b724c6a673214eab7b5e7cb3570f0271e19b51ae0bcb6a2633", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7641322db9fd05b724c6a673214eab7b5e7cb3570f0271e19b51ae0bcb6a2633", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7641322db9fd05b724c6a673214eab7b5e7cb3570f0271e19b51ae0bcb6a2633", kill_on_drop: false }`
[INFO] [stdout] 7641322db9fd05b724c6a673214eab7b5e7cb3570f0271e19b51ae0bcb6a2633
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 223fa9075b7f0ccddeff1e23b8cd85baba609a522bbebe284652d1bd95d66883
[INFO] running `Command { std: "docker" "start" "-a" "223fa9075b7f0ccddeff1e23b8cd85baba609a522bbebe284652d1bd95d66883", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling memoffset v0.2.1
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling imgui-sys v0.0.23
[INFO] [stderr]    Compiling addr2line v0.16.0
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling object v0.26.2
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling gfx-hal v0.1.0
[INFO] [stderr]    Compiling imgui v0.0.23
[INFO] [stdout] error[E0713]: borrow may still be in use when destructor runs
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/gfx-hal-0.1.0/src/command/render_pass.rs:232:36
[INFO] [stdout]     |
[INFO] [stdout] 189 | impl<'a, B: Backend> RenderPassInlineEncoder<'a, B> {
[INFO] [stdout]     |      -- lifetime `'a` defined here
[INFO] [stdout] ...
[INFO] [stdout] 232 |         RenderPassSecondaryEncoder(self.0.cmb)
[INFO] [stdout]     |         ---------------------------^^^^^^^^^^- returning this value requires that `*self.0.cmb` is borrowed for `'a`
[INFO] [stdout] 233 |     }
[INFO] [stdout]     |     - here, drop of `self` needs exclusive access to `*self.0.cmb`, because the type `render_pass::RenderPassInlineEncoder<'_, B>` implements the `Drop` trait
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0713]: borrow may still be in use when destructor runs
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/gfx-hal-0.1.0/src/command/render_pass.rs:308:62
[INFO] [stdout]     |
[INFO] [stdout] 262 | impl<'a, B: Backend> RenderPassSecondaryEncoder<'a, B> {
[INFO] [stdout]     |      -- lifetime `'a` defined here
[INFO] [stdout] ...
[INFO] [stdout] 308 |             RenderPassInlineEncoder(RenderSubpassCommon::new(self.0))
[INFO] [stdout]     |             -------------------------------------------------^^^^^^-- returning this value requires that `*self.0` is borrowed for `'a`
[INFO] [stdout] 309 |         }
[INFO] [stdout] 310 |     }
[INFO] [stdout]     |     - here, drop of `self` needs exclusive access to `*self.0`, because the type `render_pass::RenderPassSecondaryEncoder<'_, B>` implements the `Drop` trait
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0713`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gfx-hal` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "223fa9075b7f0ccddeff1e23b8cd85baba609a522bbebe284652d1bd95d66883", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "223fa9075b7f0ccddeff1e23b8cd85baba609a522bbebe284652d1bd95d66883", kill_on_drop: false }`
[INFO] [stdout] 223fa9075b7f0ccddeff1e23b8cd85baba609a522bbebe284652d1bd95d66883