[INFO] crate metaheuristics 1.0.15 is already in cache
[INFO] checking metaheuristics-1.0.15 against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66504-1
[INFO] extracting crate metaheuristics 1.0.15 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate metaheuristics 1.0.15 on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate metaheuristics 1.0.15
[INFO] finished tweaking crates.io crate metaheuristics 1.0.15
[INFO] tweaked toml for crates.io crate metaheuristics 1.0.15 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d5765f2f0089fd03696c5d0ce9df2b6be724a00082c841caebb3ab6c3ca207bf
[INFO] running `"docker" "start" "-a" "d5765f2f0089fd03696c5d0ce9df2b6be724a00082c841caebb3ab6c3ca207bf"`
[INFO] [stderr]     Checking metaheuristics v1.0.15 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/hill_climbing/random_restarts/mod.rs:44:31
[INFO] [stderr]    |
[INFO] [stderr] 44 | pub fn solve<T>(problem: &mut Metaheuristics<T>, runtime: Duration, probability: f64) -> T {
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Metaheuristics<T>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/hill_climbing/mod.rs:39:31
[INFO] [stderr]    |
[INFO] [stderr] 39 | pub fn solve<T>(problem: &mut Metaheuristics<T>, runtime: Duration) -> T {
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Metaheuristics<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/random_search/mod.rs:30:31
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub fn solve<T>(problem: &mut Metaheuristics<T>, runtime: Duration) -> T {
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Metaheuristics<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/simulated_annealing/mod.rs:64:31
[INFO] [stderr]    |
[INFO] [stderr] 64 | pub fn solve<T>(problem: &mut Metaheuristics<T>, runtime: Duration) -> T {
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Metaheuristics<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/hill_climbing/random_restarts/mod.rs:44:31
[INFO] [stderr]    |
[INFO] [stderr] 44 | pub fn solve<T>(problem: &mut Metaheuristics<T>, runtime: Duration, probability: f64) -> T {
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Metaheuristics<T>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/hill_climbing/mod.rs:39:31
[INFO] [stderr]    |
[INFO] [stderr] 39 | pub fn solve<T>(problem: &mut Metaheuristics<T>, runtime: Duration) -> T {
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Metaheuristics<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/random_search/mod.rs:30:31
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub fn solve<T>(problem: &mut Metaheuristics<T>, runtime: Duration) -> T {
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Metaheuristics<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/simulated_annealing/mod.rs:64:31
[INFO] [stderr]    |
[INFO] [stderr] 64 | pub fn solve<T>(problem: &mut Metaheuristics<T>, runtime: Duration) -> T {
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Metaheuristics<T>`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `"docker" "inspect" "d5765f2f0089fd03696c5d0ce9df2b6be724a00082c841caebb3ab6c3ca207bf"`
[INFO] running `"docker" "rm" "-f" "d5765f2f0089fd03696c5d0ce9df2b6be724a00082c841caebb3ab6c3ca207bf"`
[INFO] [stdout] d5765f2f0089fd03696c5d0ce9df2b6be724a00082c841caebb3ab6c3ca207bf