[INFO] updating cached repository https://github.com/alanpoon/rs-polygon2
[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] 05cebf533edf9e1de95bb6208d2c0f72aa190caa
[INFO] checking alanpoon/rs-polygon2 against master#b61e69433951e31f7bd746e22f516a48ad41623b for prs-64470-and-65389
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falanpoon%2Frs-polygon2" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alanpoon/rs-polygon2 on toolchain b61e69433951e31f7bd746e22f516a48ad41623b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/alanpoon/rs-polygon2
[INFO] finished tweaking git repo https://github.com/alanpoon/rs-polygon2
[INFO] tweaked toml for git repo https://github.com/alanpoon/rs-polygon2 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/alanpoon/rs-polygon2 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+b61e69433951e31f7bd746e22f516a48ad41623b" "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] fd9ef6c0b6f44f13273516f259a8936e81c8a6112d68a67d06c922c4ddac61c8
[INFO] running `"docker" "start" "-a" "fd9ef6c0b6f44f13273516f259a8936e81c8a6112d68a67d06c922c4ddac61c8"`
[INFO] [stderr]     Checking cast_trait v0.1.2
[INFO] [stderr]     Checking vec3 v0.2.0
[INFO] [stderr]     Checking vec2 v0.2.0
[INFO] [stderr]     Checking polygon2 v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/clipping/greiner_hormann/polygon.rs:203:41
[INFO] [stderr]     |
[INFO] [stderr] 203 | ...                   let mut is =
[INFO] [stderr]     |                           ----^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/clipping/greiner_hormann/polygon.rs:205:41
[INFO] [stderr]     |
[INFO] [stderr] 205 | ...                   let mut ic = Vertex::new(i, alpha_c, true, false, false);
[INFO] [stderr]     |                           ----^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/clipping/greiner_hormann/polygon.rs:203:41
[INFO] [stderr]     |
[INFO] [stderr] 203 | ...                   let mut is =
[INFO] [stderr]     |                           ----^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/clipping/greiner_hormann/polygon.rs:205:41
[INFO] [stderr]     |
[INFO] [stderr] 205 | ...                   let mut ic = Vertex::new(i, alpha_c, true, false, false);
[INFO] [stderr]     |                           ----^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.14s
[INFO] running `"docker" "inspect" "fd9ef6c0b6f44f13273516f259a8936e81c8a6112d68a67d06c922c4ddac61c8"`
[INFO] running `"docker" "rm" "-f" "fd9ef6c0b6f44f13273516f259a8936e81c8a6112d68a67d06c922c4ddac61c8"`
[INFO] [stdout] fd9ef6c0b6f44f13273516f259a8936e81c8a6112d68a67d06c922c4ddac61c8