[INFO] cloning repository https://github.com/divinites/rust-network
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/divinites/rust-network" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdivinites%2Frust-network", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdivinites%2Frust-network'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0f74f42c0619c622efaa2cf56016f26d681a431c
[INFO] checking divinites/rust-network against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdivinites%2Frust-network" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/divinites/rust-network on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/divinites/rust-network
[INFO] finished tweaking git repo https://github.com/divinites/rust-network
[INFO] tweaked toml for git repo https://github.com/divinites/rust-network written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/divinites/rust-network already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fixedbitset v0.1.1
[INFO] [stderr]   Downloaded petgraph v0.2.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f81b080a8be2a0135ee13625bd4df7cbbd7d82ff989e6ddbdf0b17734adbf435
[INFO] running `Command { std: "docker" "start" "-a" "f81b080a8be2a0135ee13625bd4df7cbbd7d82ff989e6ddbdf0b17734adbf435", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f81b080a8be2a0135ee13625bd4df7cbbd7d82ff989e6ddbdf0b17734adbf435", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f81b080a8be2a0135ee13625bd4df7cbbd7d82ff989e6ddbdf0b17734adbf435", kill_on_drop: false }`
[INFO] [stdout] f81b080a8be2a0135ee13625bd4df7cbbd7d82ff989e6ddbdf0b17734adbf435
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fd52180f5ef669bc8b7fd99700eff8f61d61d3e4e81b1120590da83b3e808ce3
[INFO] running `Command { std: "docker" "start" "-a" "fd52180f5ef669bc8b7fd99700eff8f61d61d3e4e81b1120590da83b3e808ce3", kill_on_drop: false }`
[INFO] [stderr]     Checking fixedbitset v0.1.1
[INFO] [stderr]     Checking petgraph v0.2.8
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/petgraph-0.2.8/src/graph.rs:421:21
[INFO] [stdout]     |
[INFO] [stdout] 421 |         assert!(Ix::max().index() == !0 || NodeIndex::end() != node_idx);
[INFO] [stdout]     |                     ^^^ multiple `max` found
[INFO] [stdout]     |
[INFO] [stdout] note: candidate #1 is defined in the trait `IndexType`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/petgraph-0.2.8/src/graph.rs:31:5
[INFO] [stdout]     |
[INFO] [stdout] 31  |     fn max() -> Self;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: candidate #2 is defined in the trait `Ord`
[INFO] [stdout]    --> /rustc/af4a5a13a15fa0c60e06321077ef452f769b42fd/library/core/src/cmp.rs:852:5
[INFO] [stdout] help: use fully-qualified syntax to disambiguate
[INFO] [stdout]     |
[INFO] [stdout] 421 |         assert!(<Ix as IndexType>::max().index() == !0 || NodeIndex::end() != node_idx);
[INFO] [stdout]     |                 ~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 421 |         assert!(Ord::max().index() == !0 || NodeIndex::end() != node_idx);
[INFO] [stdout]     |                 ~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/petgraph-0.2.8/src/graph.rs:458:21
[INFO] [stdout]     |
[INFO] [stdout] 458 |         assert!(Ix::max().index() == !0 || EdgeIndex::end() != edge_idx);
[INFO] [stdout]     |                     ^^^ multiple `max` found
[INFO] [stdout]     |
[INFO] [stdout] note: candidate #1 is defined in the trait `IndexType`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/petgraph-0.2.8/src/graph.rs:31:5
[INFO] [stdout]     |
[INFO] [stdout] 31  |     fn max() -> Self;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: candidate #2 is defined in the trait `Ord`
[INFO] [stdout]    --> /rustc/af4a5a13a15fa0c60e06321077ef452f769b42fd/library/core/src/cmp.rs:852:5
[INFO] [stdout] help: use fully-qualified syntax to disambiguate
[INFO] [stdout]     |
[INFO] [stdout] 458 |         assert!(<Ix as IndexType>::max().index() == !0 || EdgeIndex::end() != edge_idx);
[INFO] [stdout]     |                 ~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 458 |         assert!(Ord::max().index() == !0 || EdgeIndex::end() != edge_idx);
[INFO] [stdout]     |                 ~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0034`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `petgraph` (lib) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "fd52180f5ef669bc8b7fd99700eff8f61d61d3e4e81b1120590da83b3e808ce3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd52180f5ef669bc8b7fd99700eff8f61d61d3e4e81b1120590da83b3e808ce3", kill_on_drop: false }`
[INFO] [stdout] fd52180f5ef669bc8b7fd99700eff8f61d61d3e4e81b1120590da83b3e808ce3