[INFO] updating cached repository https://github.com/lelandbatey/rust_buddhabrot
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/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] 47fb80df605a84fd11565cf7bf2c75f0ea47994f
[INFO] checking lelandbatey/rust_buddhabrot against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flelandbatey%2Frust_buddhabrot" "/workspace/builds/worker-13/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lelandbatey/rust_buddhabrot on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/lelandbatey/rust_buddhabrot
[INFO] finished tweaking git repo https://github.com/lelandbatey/rust_buddhabrot
[INFO] tweaked toml for git repo https://github.com/lelandbatey/rust_buddhabrot written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/lelandbatey/rust_buddhabrot already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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] a18ee6b9bb18cd0cfec6eeea327a66050a7813cf33b0dae1807014da42d19f81
[INFO] running `"docker" "start" "-a" "a18ee6b9bb18cd0cfec6eeea327a66050a7813cf33b0dae1807014da42d19f81"`
[INFO] [stderr]     Checking serde v1.0.8
[INFO] [stderr]     Checking argparse v0.2.1
[INFO] [stderr]     Checking thread-id v3.1.0
[INFO] [stderr]     Checking time v0.1.37
[INFO] [stderr]     Checking num-complex v0.1.37
[INFO] [stderr]     Checking num-bigint v0.1.37
[INFO] [stderr]     Checking png v0.7.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.12
[INFO] [stderr]    Compiling serde_derive v1.0.8
[INFO] [stderr]     Checking thread_local v0.3.3
[INFO] [stderr]     Checking regex v0.2.2
[INFO] [stderr]     Checking num-rational v0.1.36
[INFO] [stderr]     Checking num v0.1.37
[INFO] [stderr]     Checking image v0.13.0
[INFO] [stderr]     Checking serde_json v1.0.2
[INFO] [stderr]     Checking buddhabrot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ppm.rs:203:43
[INFO] [stderr]     |
[INFO] [stderr] 203 |     let mut scaling_funcs: Vec<(&str, Box<Fn(f64, f64) -> f64>)> = Vec::new();
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64, f64) -> f64`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/buddha.rs:168:34
[INFO] [stderr]     |
[INFO] [stderr] 168 |     let max_thread_traj = max(1, (max_trajectories / c.thread_count));
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/buddha.rs:169:53
[INFO] [stderr]     |
[INFO] [stderr] 169 |     let to_recieve: usize = min(c.trajectory_count, (max_thread_traj * c.thread_count));
[INFO] [stderr]     |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/buddha.rs:283:32
[INFO] [stderr]     |
[INFO] [stderr] 283 |                 if (traj % max((max_trajectories / 100), 1)) == 0 {
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ppm.rs:203:43
[INFO] [stderr]     |
[INFO] [stderr] 203 |     let mut scaling_funcs: Vec<(&str, Box<Fn(f64, f64) -> f64>)> = Vec::new();
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64, f64) -> f64`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/buddha.rs:168:34
[INFO] [stderr]     |
[INFO] [stderr] 168 |     let max_thread_traj = max(1, (max_trajectories / c.thread_count));
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/buddha.rs:169:53
[INFO] [stderr]     |
[INFO] [stderr] 169 |     let to_recieve: usize = min(c.trajectory_count, (max_thread_traj * c.thread_count));
[INFO] [stderr]     |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/buddha.rs:283:32
[INFO] [stderr]     |
[INFO] [stderr] 283 |                 if (traj % max((max_trajectories / 100), 1)) == 0 {
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.01s
[INFO] running `"docker" "inspect" "a18ee6b9bb18cd0cfec6eeea327a66050a7813cf33b0dae1807014da42d19f81"`
[INFO] running `"docker" "rm" "-f" "a18ee6b9bb18cd0cfec6eeea327a66050a7813cf33b0dae1807014da42d19f81"`
[INFO] [stdout] a18ee6b9bb18cd0cfec6eeea327a66050a7813cf33b0dae1807014da42d19f81