[INFO] updating cached repository saulshanabrook/graph-computation-play
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/saulshanabrook/graph-computation-play
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/saulshanabrook/graph-computation-play" "work/ex/beta-1.38-1/sources/1.37.0/gh/saulshanabrook/graph-computation-play"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/saulshanabrook/graph-computation-play'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/saulshanabrook/graph-computation-play" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/saulshanabrook/graph-computation-play"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/saulshanabrook/graph-computation-play'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b6a782a5be49bfaa372b226ceb59a68e26b6ea61
[INFO] sha for GitHub repo saulshanabrook/graph-computation-play: b6a782a5be49bfaa372b226ceb59a68e26b6ea61
[INFO] validating manifest of saulshanabrook/graph-computation-play 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 saulshanabrook/graph-computation-play 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 saulshanabrook/graph-computation-play
[INFO] finished frobbing saulshanabrook/graph-computation-play
[INFO] frobbed toml for saulshanabrook/graph-computation-play written to work/ex/beta-1.38-1/sources/1.37.0/gh/saulshanabrook/graph-computation-play/Cargo.toml
[INFO] started frobbing saulshanabrook/graph-computation-play
[INFO] finished frobbing saulshanabrook/graph-computation-play
[INFO] frobbed toml for saulshanabrook/graph-computation-play written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/saulshanabrook/graph-computation-play/Cargo.toml
[INFO] crate saulshanabrook/graph-computation-play 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 saulshanabrook/graph-computation-play 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/gh/saulshanabrook/graph-computation-play:/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] b9dc532686651f78a83844a07fec54d34c3de4f6ea62319cf14e398ff871937a
[INFO] running `"docker" "start" "-a" "b9dc532686651f78a83844a07fec54d34c3de4f6ea62319cf14e398ff871937a"`
[INFO] [stderr]    Compiling graph-computation-play v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: constant item is never used: `POP_SIZE`
[INFO] [stderr]   --> main.rs:51:1
[INFO] [stderr]    |
[INFO] [stderr] 51 | const POP_SIZE: usize = 100;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Genomes`
[INFO] [stderr]   --> main.rs:52:1
[INFO] [stderr]    |
[INFO] [stderr] 52 | type Genomes = [Genome; POP_SIZE];
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Errors`
[INFO] [stderr]   --> main.rs:53:1
[INFO] [stderr]    |
[INFO] [stderr] 53 | type Errors = [Error; POP_SIZE];
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `errors_from_genomes`
[INFO] [stderr]   --> main.rs:55:1
[INFO] [stderr]    |
[INFO] [stderr] 55 | fn errors_from_genomes(genomes: Genomes) -> Errors {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Population`
[INFO] [stderr]   --> main.rs:62:1
[INFO] [stderr]    |
[INFO] [stderr] 62 | struct Population {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `population_from_genomes`
[INFO] [stderr]   --> main.rs:67:1
[INFO] [stderr]    |
[INFO] [stderr] 67 | fn population_from_genomes(genomes: Genomes) -> Population {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `initial_population`
[INFO] [stderr]   --> main.rs:74:1
[INFO] [stderr]    |
[INFO] [stderr] 74 | fn initial_population<R: Rng>(random_gene: &Range<Gene>, rng: &mut R) -> Population {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `"docker" "inspect" "b9dc532686651f78a83844a07fec54d34c3de4f6ea62319cf14e398ff871937a"`
[INFO] running `"docker" "rm" "-f" "b9dc532686651f78a83844a07fec54d34c3de4f6ea62319cf14e398ff871937a"`
[INFO] [stdout] b9dc532686651f78a83844a07fec54d34c3de4f6ea62319cf14e398ff871937a
[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/gh/saulshanabrook/graph-computation-play:/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] 0e2eb578a526dcb016fc3d69d5c3d8768a6fd0c0dc4e2253e391af6272a00569
[INFO] running `"docker" "start" "-a" "0e2eb578a526dcb016fc3d69d5c3d8768a6fd0c0dc4e2253e391af6272a00569"`
[INFO] [stderr]    Compiling graph-computation-play v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: constant item is never used: `POP_SIZE`
[INFO] [stderr]   --> main.rs:51:1
[INFO] [stderr]    |
[INFO] [stderr] 51 | const POP_SIZE: usize = 100;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Genomes`
[INFO] [stderr]   --> main.rs:52:1
[INFO] [stderr]    |
[INFO] [stderr] 52 | type Genomes = [Genome; POP_SIZE];
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Errors`
[INFO] [stderr]   --> main.rs:53:1
[INFO] [stderr]    |
[INFO] [stderr] 53 | type Errors = [Error; POP_SIZE];
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `errors_from_genomes`
[INFO] [stderr]   --> main.rs:55:1
[INFO] [stderr]    |
[INFO] [stderr] 55 | fn errors_from_genomes(genomes: Genomes) -> Errors {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Population`
[INFO] [stderr]   --> main.rs:62:1
[INFO] [stderr]    |
[INFO] [stderr] 62 | struct Population {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `population_from_genomes`
[INFO] [stderr]   --> main.rs:67:1
[INFO] [stderr]    |
[INFO] [stderr] 67 | fn population_from_genomes(genomes: Genomes) -> Population {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `initial_population`
[INFO] [stderr]   --> main.rs:74:1
[INFO] [stderr]    |
[INFO] [stderr] 74 | fn initial_population<R: Rng>(random_gene: &Range<Gene>, rng: &mut R) -> Population {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `"docker" "inspect" "0e2eb578a526dcb016fc3d69d5c3d8768a6fd0c0dc4e2253e391af6272a00569"`
[INFO] running `"docker" "rm" "-f" "0e2eb578a526dcb016fc3d69d5c3d8768a6fd0c0dc4e2253e391af6272a00569"`
[INFO] [stdout] 0e2eb578a526dcb016fc3d69d5c3d8768a6fd0c0dc4e2253e391af6272a00569
[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/gh/saulshanabrook/graph-computation-play:/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"`
[INFO] [stdout] bd148a020ec0995149695defc7ad4d3024e5eb965780d5dcdd9d1f8cb68f5a40
[INFO] running `"docker" "start" "-a" "bd148a020ec0995149695defc7ad4d3024e5eb965780d5dcdd9d1f8cb68f5a40"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/graph_computation_play-6aff0314c4ef37ae
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "bd148a020ec0995149695defc7ad4d3024e5eb965780d5dcdd9d1f8cb68f5a40"`
[INFO] running `"docker" "rm" "-f" "bd148a020ec0995149695defc7ad4d3024e5eb965780d5dcdd9d1f8cb68f5a40"`
[INFO] [stdout] bd148a020ec0995149695defc7ad4d3024e5eb965780d5dcdd9d1f8cb68f5a40