[INFO] updating cached repository https://github.com/dkudernatsch/rust8
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/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] 93975209691fc59f633a5df3288d3b3709f20e43
[INFO] testing dkudernatsch/rust8 against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdkudernatsch%2Frust8" "work/builds/worker-5/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dkudernatsch/rust8 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/dkudernatsch/rust8
[INFO] finished tweaking git repo https://github.com/dkudernatsch/rust8
[INFO] tweaked toml for git repo https://github.com/dkudernatsch/rust8 written to work/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/dkudernatsch/rust8 already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 72061dec1e73ccc1a3bdd2b8e912c14915b567eef4088f3e0a52a98039a14bb3
[INFO] running `"docker" "start" "-a" "72061dec1e73ccc1a3bdd2b8e912c14915b567eef4088f3e0a52a98039a14bb3"`
[INFO] [stderr]    Compiling piston-texture v0.5.0
[INFO] [stderr]    Compiling fixedbitset v0.1.5
[INFO] [stderr]    Compiling bit-vec v0.4.3
[INFO] [stderr]    Compiling x11-dl v2.12.0
[INFO] [stderr]    Compiling shared_library v0.1.5
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling vecmath v0.3.0
[INFO] [stderr]    Compiling num-complex v0.1.35
[INFO] [stderr]    Compiling deflate v0.7.4
[INFO] [stderr]    Compiling wayland-scanner v0.7.7
[INFO] [stderr]    Compiling tempfile v2.1.5
[INFO] [stderr]    Compiling deque v0.3.1
[INFO] [stderr]    Compiling num-bigint v0.1.35
[INFO] [stderr]    Compiling pistoncore-input v0.17.1
[INFO] [stderr]    Compiling gfx_core v0.6.0
[INFO] [stderr]    Compiling glutin v0.7.4
[INFO] [stderr]    Compiling gfx_gl v0.3.1
[INFO] [stderr]    Compiling gl v0.6.1
[INFO] [stderr]    Compiling fs2 v0.2.5
[INFO] [stderr]    Compiling rayon v0.6.0
[INFO] [stderr]    Compiling petgraph v0.2.9
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling piston2d-graphics v0.21.1
[INFO] [stderr]    Compiling dlib v0.3.1
[INFO] [stderr]    Compiling memmap v0.4.0
[INFO] [stderr]    Compiling num-rational v0.1.35
[INFO] [stderr] error[E0034]: multiple applicable items in scope
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/petgraph-0.2.9/src/graph.rs:421:17
[INFO] [stderr]     |
[INFO] [stderr] 421 |         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-0.2.9/src/graph.rs:31:5
[INFO] [stderr]     |
[INFO] [stderr] 31  |     fn max() -> Self;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: to disambiguate the method call, write `graph::IndexType::max(...)` instead
[INFO] [stderr] note: candidate #2 is defined in the trait `std::cmp::Ord`
[INFO] [stderr]     = help: to disambiguate the method call, write `std::cmp::Ord::max(...)` instead
[INFO] [stderr] 
[INFO] [stderr]    Compiling png v0.6.2
[INFO] [stderr] error[E0034]: multiple applicable items in scope
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/petgraph-0.2.9/src/graph.rs:458:17
[INFO] [stderr]     |
[INFO] [stderr] 458 |         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-0.2.9/src/graph.rs:31:5
[INFO] [stderr]     |
[INFO] [stderr] 31  |     fn max() -> Self;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: to disambiguate the method call, write `graph::IndexType::max(...)` instead
[INFO] [stderr] note: candidate #2 is defined in the trait `std::cmp::Ord`
[INFO] [stderr]     = help: to disambiguate the method call, write `std::cmp::Ord::max(...)` instead
[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] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "72061dec1e73ccc1a3bdd2b8e912c14915b567eef4088f3e0a52a98039a14bb3"`
[INFO] running `"docker" "rm" "-f" "72061dec1e73ccc1a3bdd2b8e912c14915b567eef4088f3e0a52a98039a14bb3"`
[INFO] [stdout] 72061dec1e73ccc1a3bdd2b8e912c14915b567eef4088f3e0a52a98039a14bb3