[INFO] crate furnace-iui 0.3.0 is already in cache
[INFO] testing furnace-iui-0.3.0 against 1.38.0 for beta-1.39-1
[INFO] extracting crate furnace-iui 0.3.0 into work/builds/worker-7/source
[INFO] validating manifest of crates.io crate furnace-iui 0.3.0 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate furnace-iui 0.3.0
[INFO] finished tweaking crates.io crate furnace-iui 0.3.0
[INFO] tweaked toml for crates.io crate furnace-iui 0.3.0 written to work/builds/worker-7/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 3f7e7d66c36938fedcb91d58f1e2829f1441a46ee721011c5a0d674c5c8edf9b
[INFO] running `"docker" "start" "-a" "3f7e7d66c36938fedcb91d58f1e2829f1441a46ee721011c5a0d674c5c8edf9b"`
[INFO] [stderr]    Compiling ui-sys v0.1.3
[INFO] [stderr]    Compiling furnace v0.3.0
[INFO] [stderr]    Compiling iui v0.3.0
[INFO] [stderr]    Compiling furnace-iui v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0495]: cannot infer an appropriate lifetime due to conflicting requirements
[INFO] [stderr]   --> src/lib.rs:28:38
[INFO] [stderr]    |
[INFO] [stderr] 28 |         event_loop.on_tick(&self.ui, || f(&*self));
[INFO] [stderr]    |                                      ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: first, the lifetime cannot outlive the lifetime 'a as defined on the method body at 26:18...
[INFO] [stderr]   --> src/lib.rs:26:18
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn main_loop<'a>(&'a mut self, mut f: impl FnMut(&Self) -> () + 'a) {
[INFO] [stderr]    |                  ^^
[INFO] [stderr]    = note: ...so that the types are compatible:
[INFO] [stderr]            expected &&mut UiContext
[INFO] [stderr]               found &&'a mut UiContext
[INFO] [stderr]    = note: but, the lifetime must be valid for the static lifetime...
[INFO] [stderr] note: ...so that the type `[closure@src/lib.rs:28:38: 28:50 f:&mut impl FnMut(&Self) -> () + 'a, self:&&mut UiContext]` will meet its required lifetime bounds
[INFO] [stderr]   --> src/lib.rs:28:20
[INFO] [stderr]    |
[INFO] [stderr] 28 |         event_loop.on_tick(&self.ui, || f(&*self));
[INFO] [stderr]    |                    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `furnace-iui`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "3f7e7d66c36938fedcb91d58f1e2829f1441a46ee721011c5a0d674c5c8edf9b"`
[INFO] running `"docker" "rm" "-f" "3f7e7d66c36938fedcb91d58f1e2829f1441a46ee721011c5a0d674c5c8edf9b"`
[INFO] [stdout] 3f7e7d66c36938fedcb91d58f1e2829f1441a46ee721011c5a0d674c5c8edf9b