[INFO] crate gfx-backend-empty 0.1.1 is already in cache
[INFO] extracting crate gfx-backend-empty 0.1.1 into work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/reg/gfx-backend-empty/0.1.1
[INFO] extracting crate gfx-backend-empty 0.1.1 into work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/reg/gfx-backend-empty/0.1.1
[INFO] validating manifest of gfx-backend-empty-0.1.1 on toolchain master#1891bfa80364eead426517c68de6947b7692e2de
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of gfx-backend-empty-0.1.1 on toolchain try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing gfx-backend-empty-0.1.1
[INFO] finished frobbing gfx-backend-empty-0.1.1
[INFO] frobbed toml for gfx-backend-empty-0.1.1 written to work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/reg/gfx-backend-empty/0.1.1/Cargo.toml
[INFO] started frobbing gfx-backend-empty-0.1.1
[INFO] finished frobbing gfx-backend-empty-0.1.1
[INFO] frobbed toml for gfx-backend-empty-0.1.1 written to work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/reg/gfx-backend-empty/0.1.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking gfx-backend-empty-0.1.1 against try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a for pr-60261
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60261/worker-2/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/reg/gfx-backend-empty/0.1.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ef3761afce9a52d1240c1ecf0480c0e2619b44b3c44296dab6245b0841c6cd7c
[INFO] running `"docker" "start" "-a" "ef3761afce9a52d1240c1ecf0480c0e2619b44b3c44296dab6245b0841c6cd7c"`
[INFO] [stderr]     Checking gfx-hal v0.1.0
[INFO] [stderr] warning[E0713]: borrow may still be in use when destructor runs
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gfx-hal-0.1.0/src/command/render_pass.rs:232:36
[INFO] [stderr]     |
[INFO] [stderr] 189 | impl<'a, B: Backend> RenderPassInlineEncoder<'a, B> {
[INFO] [stderr]     |      -- lifetime `'a` defined here
[INFO] [stderr] ...
[INFO] [stderr] 232 |         RenderPassSecondaryEncoder(self.0.cmb)
[INFO] [stderr]     |         ---------------------------^^^^^^^^^^- returning this value requires that `*self.0.cmb` is borrowed for `'a`
[INFO] [stderr] 233 |     }
[INFO] [stderr]     |     - here, drop of `self` needs exclusive access to `*self.0.cmb`, because the type `command::render_pass::RenderPassInlineEncoder<'_, B>` implements the `Drop` trait
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]     = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr] 
[INFO] [stderr] warning[E0713]: borrow may still be in use when destructor runs
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gfx-hal-0.1.0/src/command/render_pass.rs:308:62
[INFO] [stderr]     |
[INFO] [stderr] 262 | impl<'a, B: Backend> RenderPassSecondaryEncoder<'a, B> {
[INFO] [stderr]     |      -- lifetime `'a` defined here
[INFO] [stderr] ...
[INFO] [stderr] 308 |             RenderPassInlineEncoder(RenderSubpassCommon::new(self.0))
[INFO] [stderr]     |             -------------------------------------------------^^^^^^-- returning this value requires that `*self.0` is borrowed for `'a`
[INFO] [stderr] 309 |         }
[INFO] [stderr] 310 |     }
[INFO] [stderr]     |     - here, drop of `self` needs exclusive access to `*self.0`, because the type `command::render_pass::RenderPassSecondaryEncoder<'_, B>` implements the `Drop` trait
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]     = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr] 
[INFO] [stderr]     Checking gfx-backend-empty v0.1.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.08s
[INFO] running `"docker" "inspect" "ef3761afce9a52d1240c1ecf0480c0e2619b44b3c44296dab6245b0841c6cd7c"`
[INFO] running `"docker" "rm" "-f" "ef3761afce9a52d1240c1ecf0480c0e2619b44b3c44296dab6245b0841c6cd7c"`
[INFO] [stdout] ef3761afce9a52d1240c1ecf0480c0e2619b44b3c44296dab6245b0841c6cd7c