[INFO] updating cached repository ScazLab/baby_linguist
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ScazLab/baby_linguist
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ScazLab/baby_linguist" "work/ex/beta-1.38-1/sources/1.37.0/gh/ScazLab/baby_linguist"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/ScazLab/baby_linguist'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ScazLab/baby_linguist" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ScazLab/baby_linguist"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ScazLab/baby_linguist'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8779cb4100591c30152df146ec369c4a93240780
[INFO] sha for GitHub repo ScazLab/baby_linguist: 8779cb4100591c30152df146ec369c4a93240780
[INFO] validating manifest of ScazLab/baby_linguist on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ScazLab/baby_linguist on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ScazLab/baby_linguist
[INFO] finished frobbing ScazLab/baby_linguist
[INFO] frobbed toml for ScazLab/baby_linguist written to work/ex/beta-1.38-1/sources/1.37.0/gh/ScazLab/baby_linguist/Cargo.toml
[INFO] started frobbing ScazLab/baby_linguist
[INFO] finished frobbing ScazLab/baby_linguist
[INFO] frobbed toml for ScazLab/baby_linguist written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ScazLab/baby_linguist/Cargo.toml
[INFO] crate ScazLab/baby_linguist already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing ScazLab/baby_linguist against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ScazLab/baby_linguist:/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 3864b67270ac209dd22a6b4859dfde8ce22b2fa32e90591391399a37e5c47f59
[INFO] running `"docker" "start" "-a" "3864b67270ac209dd22a6b4859dfde8ce22b2fa32e90591391399a37e5c47f59"`
[INFO] [stderr]    Compiling libc v0.2.23
[INFO] [stderr]    Compiling siphasher v0.2.2
[INFO] [stderr]    Compiling itoa v0.3.1
[INFO] [stderr]    Compiling dtoa v0.4.1
[INFO] [stderr]    Compiling serde v0.9.15
[INFO] [stderr]    Compiling num-traits v0.1.39
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling lazy_static v0.2.8
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]    Compiling khronos_api v1.0.1
[INFO] [stderr]    Compiling log v0.3.8
[INFO] [stderr]    Compiling gcc v0.3.50
[INFO] [stderr]    Compiling byteorder v1.0.0
[INFO] [stderr]    Compiling rayon-core v1.0.2
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling backtrace v0.2.3
[INFO] [stderr]    Compiling deque v0.3.2
[INFO] [stderr]    Compiling odds v0.2.25
[INFO] [stderr]    Compiling adler32 v1.0.0
[INFO] [stderr]    Compiling byteorder v0.4.2
[INFO] [stderr]    Compiling rustc-demangle v0.1.4
[INFO] [stderr]    Compiling cfg-if v0.1.1
[INFO] [stderr]    Compiling piston-float v0.3.0
[INFO] [stderr]    Compiling fixedbitset v0.1.6
[INFO] [stderr]    Compiling lzw v0.10.0
[INFO] [stderr]    Compiling linked-hash-map v0.0.10
[INFO] [stderr]    Compiling smallvec v0.1.8
[INFO] [stderr]    Compiling bitflags v0.9.1
[INFO] [stderr]    Compiling inflate v0.2.0
[INFO] [stderr]    Compiling bitflags v0.8.2
[INFO] [stderr]    Compiling fnv v1.0.5
[INFO] [stderr]    Compiling color_quant v1.0.0
[INFO] [stderr]    Compiling scoped_threadpool v0.1.7
[INFO] [stderr]    Compiling find_folder v0.3.0
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling xml-rs v0.3.6
[INFO] [stderr]    Compiling phf_shared v0.7.21
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling num_cpus v1.5.1
[INFO] [stderr]    Compiling shared_library v0.1.5
[INFO] [stderr]    Compiling rscam v0.5.3
[INFO] [stderr]    Compiling time v0.1.37
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling num-integer v0.1.34
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling deflate v0.7.11
[INFO] [stderr]    Compiling nodrop v0.1.9
[INFO] [stderr]    Compiling stb_truetype v0.2.1
[INFO] [stderr]    Compiling piston-viewport v0.3.0
[INFO] [stderr]    Compiling petgraph v0.2.9
[INFO] [stderr]    Compiling gif v0.9.2
[INFO] [stderr] error[E0034]: multiple applicable items in scope
[INFO] [stderr]    --> /opt/crater/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/crater/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[E0034]: multiple applicable items in scope
[INFO] [stderr]    --> /opt/crater/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/crater/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 x11-dl v2.14.0
[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" "3864b67270ac209dd22a6b4859dfde8ce22b2fa32e90591391399a37e5c47f59"`
[INFO] running `"docker" "rm" "-f" "3864b67270ac209dd22a6b4859dfde8ce22b2fa32e90591391399a37e5c47f59"`
[INFO] [stdout] 3864b67270ac209dd22a6b4859dfde8ce22b2fa32e90591391399a37e5c47f59