[INFO] updating cached repository lempiy/Weiler-Atherton-Clipping
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/lempiy/Weiler-Atherton-Clipping
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/lempiy/Weiler-Atherton-Clipping" "work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/lempiy/Weiler-Atherton-Clipping"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/lempiy/Weiler-Atherton-Clipping'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/lempiy/Weiler-Atherton-Clipping" "work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/lempiy/Weiler-Atherton-Clipping"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/lempiy/Weiler-Atherton-Clipping'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c8de3a0ab14e59b2c636540c4d6ca1217038aa72
[INFO] sha for GitHub repo lempiy/Weiler-Atherton-Clipping: c8de3a0ab14e59b2c636540c4d6ca1217038aa72
[INFO] validating manifest of lempiy/Weiler-Atherton-Clipping on toolchain master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of lempiy/Weiler-Atherton-Clipping on toolchain try#58b21121d0b447ceb3f1a655155d802191acf044
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing lempiy/Weiler-Atherton-Clipping
[INFO] finished frobbing lempiy/Weiler-Atherton-Clipping
[INFO] frobbed toml for lempiy/Weiler-Atherton-Clipping written to work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/lempiy/Weiler-Atherton-Clipping/Cargo.toml
[INFO] started frobbing lempiy/Weiler-Atherton-Clipping
[INFO] finished frobbing lempiy/Weiler-Atherton-Clipping
[INFO] frobbed toml for lempiy/Weiler-Atherton-Clipping written to work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/lempiy/Weiler-Atherton-Clipping/Cargo.toml
[INFO] crate lempiy/Weiler-Atherton-Clipping already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking lempiy/Weiler-Atherton-Clipping against try#58b21121d0b447ceb3f1a655155d802191acf044 for pr-61100
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-61100/worker-0/try#58b21121d0b447ceb3f1a655155d802191acf044:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/lempiy/Weiler-Atherton-Clipping:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 6ee572cb5044c975a731734ad845c8225cf730ffa1f0dfc1dabbb614688dbea2
[INFO] running `"docker" "start" "-a" "6ee572cb5044c975a731734ad845c8225cf730ffa1f0dfc1dabbb614688dbea2"`
[INFO] [stderr]     Checking poly v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/clip.rs:138:17
[INFO] [stderr]     |
[INFO] [stderr] 138 |             let mut j = if i != self.points.len() - 1 { i + 1 } else { 0 };
[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/clip.rs:153:38
[INFO] [stderr]     |
[INFO] [stderr] 153 |                 PolyListOption::List(mut clip_list) => {
[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/clip.rs:138:17
[INFO] [stderr]     |
[INFO] [stderr] 138 |             let mut j = if i != self.points.len() - 1 { i + 1 } else { 0 };
[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/clip.rs:153:38
[INFO] [stderr]     |
[INFO] [stderr] 153 |                 PolyListOption::List(mut clip_list) => {
[INFO] [stderr]     |                                      ----^^^^^^^^^
[INFO] [stderr]     |                                      |
[INFO] [stderr]     |                                      help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `"docker" "inspect" "6ee572cb5044c975a731734ad845c8225cf730ffa1f0dfc1dabbb614688dbea2"`
[INFO] running `"docker" "rm" "-f" "6ee572cb5044c975a731734ad845c8225cf730ffa1f0dfc1dabbb614688dbea2"`
[INFO] [stdout] 6ee572cb5044c975a731734ad845c8225cf730ffa1f0dfc1dabbb614688dbea2