[INFO] updating cached repository https://github.com/contradictioned/bronkerbosch-rust
[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] 667dff76595f3c56028e262c63680ab6f3100da2
[INFO] checking contradictioned/bronkerbosch-rust against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcontradictioned%2Fbronkerbosch-rust" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/contradictioned/bronkerbosch-rust on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/contradictioned/bronkerbosch-rust
[INFO] finished tweaking git repo https://github.com/contradictioned/bronkerbosch-rust
[INFO] tweaked toml for git repo https://github.com/contradictioned/bronkerbosch-rust written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/contradictioned/bronkerbosch-rust already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-3/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5c6a60637920060767f75d51627d393b196ea80de17e035e4524a8f5f2166e75
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "5c6a60637920060767f75d51627d393b196ea80de17e035e4524a8f5f2166e75"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking petgraph v0.1.18
[INFO] [stderr] error[E0034]: multiple applicable items in scope
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/petgraph-0.1.18/src/graph.rs:404:21
[INFO] [stderr]     |
[INFO] [stderr] 404 |         assert!(Ix::max().index() == !0 || NodeIndex::end() != node_idx);
[INFO] [stderr]     |                     ^^^ multiple `max` found
[INFO] [stderr]     |
[INFO] [stderr] note: candidate #1 is defined in the trait `graph::IndexType`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/petgraph-0.1.18/src/graph.rs:28:5
[INFO] [stderr]     |
[INFO] [stderr] 28  |     fn max() -> Self;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] note: candidate #2 is defined in the trait `std::cmp::Ord`
[INFO] [stderr] help: disambiguate the method call for candidate #1
[INFO] [stderr]     |
[INFO] [stderr] 404 |         assert!(graph::IndexType::max().index() == !0 || NodeIndex::end() != node_idx);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: disambiguate the method call for candidate #2
[INFO] [stderr]     |
[INFO] [stderr] 404 |         assert!(std::cmp::Ord::max().index() == !0 || NodeIndex::end() != node_idx);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0034]: multiple applicable items in scope
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/petgraph-0.1.18/src/graph.rs:438:21
[INFO] [stderr]     |
[INFO] [stderr] 438 |         assert!(Ix::max().index() == !0 || EdgeIndex::end() != edge_idx);
[INFO] [stderr]     |                     ^^^ multiple `max` found
[INFO] [stderr]     |
[INFO] [stderr] note: candidate #1 is defined in the trait `graph::IndexType`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/petgraph-0.1.18/src/graph.rs:28:5
[INFO] [stderr]     |
[INFO] [stderr] 28  |     fn max() -> Self;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] note: candidate #2 is defined in the trait `std::cmp::Ord`
[INFO] [stderr] help: disambiguate the method call for candidate #1
[INFO] [stderr]     |
[INFO] [stderr] 438 |         assert!(graph::IndexType::max().index() == !0 || EdgeIndex::end() != edge_idx);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] help: disambiguate the method call for candidate #2
[INFO] [stderr]     |
[INFO] [stderr] 438 |         assert!(std::cmp::Ord::max().index() == !0 || EdgeIndex::end() != edge_idx);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0034`.
[INFO] [stderr] error: could not compile `petgraph`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "5c6a60637920060767f75d51627d393b196ea80de17e035e4524a8f5f2166e75"`
[INFO] running `"docker" "rm" "-f" "5c6a60637920060767f75d51627d393b196ea80de17e035e4524a8f5f2166e75"`
[INFO] [stdout] 5c6a60637920060767f75d51627d393b196ea80de17e035e4524a8f5f2166e75
