[INFO] crate petgraph 0.4.13 is already in cache
[INFO] extracting crate petgraph 0.4.13 into work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/reg/petgraph/0.4.13
[INFO] extracting crate petgraph 0.4.13 into work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/reg/petgraph/0.4.13
[INFO] validating manifest of petgraph-0.4.13 on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of petgraph-0.4.13 on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing petgraph-0.4.13
[INFO] finished frobbing petgraph-0.4.13
[INFO] frobbed toml for petgraph-0.4.13 written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/reg/petgraph/0.4.13/Cargo.toml
[INFO] started frobbing petgraph-0.4.13
[INFO] finished frobbing petgraph-0.4.13
[INFO] frobbed toml for petgraph-0.4.13 written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/reg/petgraph/0.4.13/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking petgraph-0.4.13 against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-4/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/reg/petgraph/0.4.13:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d6e1b590f21270559fe9cbb98184a321a505a876f6caa85f8a71055962eac8ea
[INFO] running `"docker" "start" "-a" "d6e1b590f21270559fe9cbb98184a321a505a876f6caa85f8a71055962eac8ea"`
[INFO] [stderr]     Checking odds v0.2.26
[INFO] [stderr]     Checking petgraph v0.4.13 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `gr`
[INFO] [stderr]    --> benches/stable_graph.rs:198:35
[INFO] [stderr]     |
[INFO] [stderr] 198 |     bench.iter(|| a.retain_nodes(|gr, i| (i.index() + 1) % 3700 != 0));
[INFO] [stderr]     |                                   ^^ help: consider prefixing with an underscore: `_gr`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `gr`
[INFO] [stderr]    --> benches/stable_graph.rs:205:35
[INFO] [stderr]     |
[INFO] [stderr] 205 |     bench.iter(|| a.retain_edges(|gr, i| (i.index() + 1) % 3700 != 0));
[INFO] [stderr]     |                                   ^^ help: consider prefixing with an underscore: `_gr`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.44s
[INFO] running `"docker" "inspect" "d6e1b590f21270559fe9cbb98184a321a505a876f6caa85f8a71055962eac8ea"`
[INFO] running `"docker" "rm" "-f" "d6e1b590f21270559fe9cbb98184a321a505a876f6caa85f8a71055962eac8ea"`
[INFO] [stdout] d6e1b590f21270559fe9cbb98184a321a505a876f6caa85f8a71055962eac8ea