[INFO] updating cached repository https://github.com/frnsys/rust-sim [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] fe1c4fea93a0cffd0d3d1b721314953097a99b4f [INFO] checking frnsys/rust-sim against try#00e4530a79c42b21a6ca2ac1edb597c90d21f89f for pr-64672 [INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrnsys%2Frust-sim" "work/builds/worker-4/source"` [INFO] [stderr] Cloning into 'work/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/frnsys/rust-sim on toolchain 00e4530a79c42b21a6ca2ac1edb597c90d21f89f [INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+00e4530a79c42b21a6ca2ac1edb597c90d21f89f" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/frnsys/rust-sim [INFO] finished tweaking git repo https://github.com/frnsys/rust-sim [INFO] tweaked toml for git repo https://github.com/frnsys/rust-sim written to work/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/frnsys/rust-sim already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+00e4530a79c42b21a6ca2ac1edb597c90d21f89f" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/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=forbid" "-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" "+00e4530a79c42b21a6ca2ac1edb597c90d21f89f" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] c360dd00e38328c14c26d8e8b34c6b9c6c3c1a93a1523251d9b6ec2e5ba76f74 [INFO] running `"docker" "start" "-a" "c360dd00e38328c14c26d8e8b34c6b9c6c3c1a93a1523251d9b6ec2e5ba76f74"` [INFO] [stderr] Checking matches v0.1.4 [INFO] [stderr] Checking unicode-normalization v0.1.3 [INFO] [stderr] Checking log v0.3.6 [INFO] [stderr] Checking crossbeam v0.2.10 [INFO] [stderr] Checking rustc-serialize v0.3.22 [INFO] [stderr] Checking num_cpus v1.2.0 [INFO] [stderr] Checking rmp v0.7.5 [INFO] [stderr] Checking rand v0.3.15 [INFO] [stderr] Checking unicode-bidi v0.2.4 [INFO] [stderr] Checking time v0.1.35 [INFO] [stderr] Checking futures v0.1.7 [INFO] [stderr] Checking idna v0.1.0 [INFO] [stderr] Checking futures-cpupool v0.1.2 [INFO] [stderr] Checking url v1.2.4 [INFO] [stderr] Checking rmp-serialize v0.7.0 [INFO] [stderr] Checking uuid v0.2.3 [INFO] [stderr] warning[E0713]: borrow may still be in use when destructor runs [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/url-1.2.4/src/form_urlencoded.rs:246:40 [INFO] [stderr] | [INFO] [stderr] 244 | impl<'a> Target for ::UrlQuery<'a> { [INFO] [stderr] | -- lifetime `'a` defined here [INFO] [stderr] 245 | fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization } [INFO] [stderr] 246 | fn finish(self) -> &'a mut ::Url { self.url } [INFO] [stderr] | ^^^^^^^^ - here, drop of `self` needs exclusive access to `*self.url`, because the type `UrlQuery<'_>` implements the `Drop` trait [INFO] [stderr] | | [INFO] [stderr] | returning this value requires that `*self.url` is borrowed for `'a` [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] = note: for more information, try `rustc --explain E0729` [INFO] [stderr] [INFO] [stderr] Checking redis v0.8.0 [INFO] [stderr] Checking sim v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused variable: `agent` [INFO] [stderr] --> examples/culture.rs:33:21 [INFO] [stderr] | [INFO] [stderr] 33 | fn setup(&self, agent: Agent, population: &Population) -> () {} [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_agent` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `population` [INFO] [stderr] --> examples/culture.rs:33:48 [INFO] [stderr] | [INFO] [stderr] 33 | fn setup(&self, agent: Agent, population: &Population) -> () {} [INFO] [stderr] | ^^^^^^^^^^ help: consider prefixing with an underscore: `_population` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `world` [INFO] [stderr] --> examples/culture.rs:37:15 [INFO] [stderr] | [INFO] [stderr] 37 | world: Self::World, [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_world` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `world` [INFO] [stderr] --> examples/basic.rs:38:15 [INFO] [stderr] | [INFO] [stderr] 38 | world: Self::World, [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_world` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 11.87s [INFO] running `"docker" "inspect" "c360dd00e38328c14c26d8e8b34c6b9c6c3c1a93a1523251d9b6ec2e5ba76f74"` [INFO] running `"docker" "rm" "-f" "c360dd00e38328c14c26d8e8b34c6b9c6c3c1a93a1523251d9b6ec2e5ba76f74"` [INFO] [stdout] c360dd00e38328c14c26d8e8b34c6b9c6c3c1a93a1523251d9b6ec2e5ba76f74