[INFO] crate rs-graph 0.17.1 is already in cache
[INFO] extracting crate rs-graph 0.17.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/rs-graph/0.17.1
[INFO] extracting crate rs-graph 0.17.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rs-graph/0.17.1
[INFO] validating manifest of rs-graph-0.17.1 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 rs-graph-0.17.1 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 rs-graph-0.17.1
[INFO] removed 3 missing examples
[INFO] finished frobbing rs-graph-0.17.1
[INFO] frobbed toml for rs-graph-0.17.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/rs-graph/0.17.1/Cargo.toml
[INFO] started frobbing rs-graph-0.17.1
[INFO] removed 3 missing examples
[INFO] finished frobbing rs-graph-0.17.1
[INFO] frobbed toml for rs-graph-0.17.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rs-graph/0.17.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 rs-graph-0.17.1 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/rs-graph/0.17.1:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] e93ad2ed6f9c25d7dfadbcfbaf466ebcf12cfca6d05cad06891809f872c0e581
[INFO] running `"docker" "start" "-a" "e93ad2ed6f9c25d7dfadbcfbaf466ebcf12cfca6d05cad06891809f872c0e581"`
[INFO] [stderr]    Compiling rs-graph v0.17.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.61s
[INFO] running `"docker" "inspect" "e93ad2ed6f9c25d7dfadbcfbaf466ebcf12cfca6d05cad06891809f872c0e581"`
[INFO] running `"docker" "rm" "-f" "e93ad2ed6f9c25d7dfadbcfbaf466ebcf12cfca6d05cad06891809f872c0e581"`
[INFO] [stdout] e93ad2ed6f9c25d7dfadbcfbaf466ebcf12cfca6d05cad06891809f872c0e581
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/rs-graph/0.17.1:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 20660b616771616a3ffd11067214e3c5111be9d286f9d70e5a3d3e4f625b1889
[INFO] running `"docker" "start" "-a" "20660b616771616a3ffd11067214e3c5111be9d286f9d70e5a3d3e4f625b1889"`
[INFO] [stderr]    Compiling rustop v1.0.4
[INFO] [stderr]    Compiling rs-graph v0.17.1 (/opt/crater/workdir)
[INFO] [stderr] error[E0433]: failed to resolve: could not find `dimacs` in `rs_graph`
[INFO] [stderr]   --> examples/dinic.rs:23:15
[INFO] [stderr]    |
[INFO] [stderr] 23 | use rs_graph::dimacs::maxflow::Instance;
[INFO] [stderr]    |               ^^^^^^ could not find `dimacs` in `rs_graph`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `Instance`
[INFO] [stderr]   --> examples/dinic.rs:56:20
[INFO] [stderr]    |
[INFO] [stderr] 56 |     let instance = Instance::<_, i32, _>::read(&args.file).unwrap();
[INFO] [stderr]    |                    ^^^^^^^^ use of undeclared type or module `Instance`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rs_graph::dimacs::maxflow::Instance`
[INFO] [stderr]   --> examples/dinic.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 | use rs_graph::dimacs::maxflow::Instance;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0433`.
[INFO] [stderr] error[E0433]: failed to resolve: could not find `dimacs` in `rs_graph`
[INFO] [stderr]   --> examples/edmondskarp.rs:23:15
[INFO] [stderr]    |
[INFO] [stderr] 23 | use rs_graph::dimacs::maxflow::Instance;
[INFO] [stderr]    |               ^^^^^^ could not find `dimacs` in `rs_graph`
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `rs-graph`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `Instance`
[INFO] [stderr]   --> examples/edmondskarp.rs:56:20
[INFO] [stderr]    |
[INFO] [stderr] 56 |     let instance = Instance::<_, i32, _>::read(&args.file).unwrap();
[INFO] [stderr]    |                    ^^^^^^^^ use of undeclared type or module `Instance`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rs_graph::dimacs::maxflow::Instance`
[INFO] [stderr]   --> examples/edmondskarp.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 | use rs_graph::dimacs::maxflow::Instance;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `dimacs` in `rs_graph`
[INFO] [stderr]   --> examples/pushrelabel.rs:22:15
[INFO] [stderr]    |
[INFO] [stderr] 22 | use rs_graph::dimacs::maxflow::Instance;
[INFO] [stderr]    |               ^^^^^^ could not find `dimacs` in `rs_graph`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `Instance`
[INFO] [stderr]   --> examples/pushrelabel.rs:54:20
[INFO] [stderr]    |
[INFO] [stderr] 54 |     let instance = Instance::<_, F, _>::read(filename).unwrap();
[INFO] [stderr]    |                    ^^^^^^^^ use of undeclared type or module `Instance`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rs_graph::dimacs::maxflow::Instance`
[INFO] [stderr]   --> examples/pushrelabel.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | use rs_graph::dimacs::maxflow::Instance;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0433`.
[INFO] [stderr] error: Could not compile `rs-graph`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0433`.
[INFO] [stderr] error: Could not compile `rs-graph`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "20660b616771616a3ffd11067214e3c5111be9d286f9d70e5a3d3e4f625b1889"`
[INFO] running `"docker" "rm" "-f" "20660b616771616a3ffd11067214e3c5111be9d286f9d70e5a3d3e4f625b1889"`
[INFO] [stdout] 20660b616771616a3ffd11067214e3c5111be9d286f9d70e5a3d3e4f625b1889