[INFO] updating cached repository JFKingsley/Dot
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/JFKingsley/Dot
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/JFKingsley/Dot" "work/ex/beta-1.37-6/sources/1.36.0/gh/JFKingsley/Dot"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/JFKingsley/Dot'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/JFKingsley/Dot" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/JFKingsley/Dot"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/JFKingsley/Dot'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bf9ba58c67196acdd065ec6e60a53fe6797c53a9
[INFO] sha for GitHub repo JFKingsley/Dot: bf9ba58c67196acdd065ec6e60a53fe6797c53a9
[INFO] validating manifest of JFKingsley/Dot on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of JFKingsley/Dot on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing JFKingsley/Dot
[INFO] finished frobbing JFKingsley/Dot
[INFO] frobbed toml for JFKingsley/Dot written to work/ex/beta-1.37-6/sources/1.36.0/gh/JFKingsley/Dot/Cargo.toml
[INFO] started frobbing JFKingsley/Dot
[INFO] finished frobbing JFKingsley/Dot
[INFO] frobbed toml for JFKingsley/Dot written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/JFKingsley/Dot/Cargo.toml
[INFO] crate JFKingsley/Dot already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing JFKingsley/Dot against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/JFKingsley/Dot:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 5186db8915c59d1eeb265afc62259679f2e1329c7c20f4897b01a12a6c4ac356
[INFO] running `"docker" "start" "-a" "5186db8915c59d1eeb265afc62259679f2e1329c7c20f4897b01a12a6c4ac356"`
[INFO] [stderr]    Compiling libc v0.2.18
[INFO] [stderr]    Compiling vec_map v0.6.0
[INFO] [stderr]    Compiling rustc-serialize v0.3.22
[INFO] [stderr]    Compiling strsim v0.5.2
[INFO] [stderr]    Compiling unicode-width v0.1.3
[INFO] [stderr]    Compiling unicode-segmentation v0.1.3
[INFO] [stderr]    Compiling ansi_term v0.9.0
[INFO] [stderr]    Compiling term_size v0.2.1
[INFO] [stderr]    Compiling clap v2.19.2
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling dot v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `load_config`
[INFO] [stderr]  --> src/utils/config.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | fn load_config(path: &str) {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.48s
[INFO] running `"docker" "inspect" "5186db8915c59d1eeb265afc62259679f2e1329c7c20f4897b01a12a6c4ac356"`
[INFO] running `"docker" "rm" "-f" "5186db8915c59d1eeb265afc62259679f2e1329c7c20f4897b01a12a6c4ac356"`
[INFO] [stdout] 5186db8915c59d1eeb265afc62259679f2e1329c7c20f4897b01a12a6c4ac356
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/JFKingsley/Dot:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] f4caa1a7d54fba783741dfc6ad664168614c227f4040e38651a4d1138e37ea76
[INFO] running `"docker" "start" "-a" "f4caa1a7d54fba783741dfc6ad664168614c227f4040e38651a4d1138e37ea76"`
[INFO] [stderr]    Compiling dot v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `load_config`
[INFO] [stderr]  --> src/utils/config.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | fn load_config(path: &str) {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `"docker" "inspect" "f4caa1a7d54fba783741dfc6ad664168614c227f4040e38651a4d1138e37ea76"`
[INFO] running `"docker" "rm" "-f" "f4caa1a7d54fba783741dfc6ad664168614c227f4040e38651a4d1138e37ea76"`
[INFO] [stdout] f4caa1a7d54fba783741dfc6ad664168614c227f4040e38651a4d1138e37ea76
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/JFKingsley/Dot:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 277b2c11736b88e49ea66e1b5234d06a4da39b4f26363756cefd6e996d76c72b
[INFO] running `"docker" "start" "-a" "277b2c11736b88e49ea66e1b5234d06a4da39b4f26363756cefd6e996d76c72b"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/dot-54e5691a662c07b1
[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" "277b2c11736b88e49ea66e1b5234d06a4da39b4f26363756cefd6e996d76c72b"`
[INFO] running `"docker" "rm" "-f" "277b2c11736b88e49ea66e1b5234d06a4da39b4f26363756cefd6e996d76c72b"`
[INFO] [stdout] 277b2c11736b88e49ea66e1b5234d06a4da39b4f26363756cefd6e996d76c72b