[INFO] updating cached repository William-Olson/k-means
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/William-Olson/k-means
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/William-Olson/k-means" "work/ex/beta-1.38-1/sources/1.37.0/gh/William-Olson/k-means"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/William-Olson/k-means'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/William-Olson/k-means" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/William-Olson/k-means"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/William-Olson/k-means'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c6e96ff15e81cb3d5b0d44f1d6132213b94c032e
[INFO] sha for GitHub repo William-Olson/k-means: c6e96ff15e81cb3d5b0d44f1d6132213b94c032e
[INFO] validating manifest of William-Olson/k-means 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 William-Olson/k-means 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 William-Olson/k-means
[INFO] finished frobbing William-Olson/k-means
[INFO] frobbed toml for William-Olson/k-means written to work/ex/beta-1.38-1/sources/1.37.0/gh/William-Olson/k-means/Cargo.toml
[INFO] started frobbing William-Olson/k-means
[INFO] finished frobbing William-Olson/k-means
[INFO] frobbed toml for William-Olson/k-means written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/William-Olson/k-means/Cargo.toml
[INFO] crate William-Olson/k-means 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] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/William-Olson/k-means/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing William-Olson/k-means 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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/William-Olson/k-means:/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] f31017c0643f6a2c4ed50283ffac033fd7fca6b87e8573d984e51b860ccbb4e7
[INFO] running `"docker" "start" "-a" "f31017c0643f6a2c4ed50283ffac033fd7fca6b87e8573d984e51b860ccbb4e7"`
[INFO] [stderr]    Compiling k-means v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.51s
[INFO] running `"docker" "inspect" "f31017c0643f6a2c4ed50283ffac033fd7fca6b87e8573d984e51b860ccbb4e7"`
[INFO] running `"docker" "rm" "-f" "f31017c0643f6a2c4ed50283ffac033fd7fca6b87e8573d984e51b860ccbb4e7"`
[INFO] [stdout] f31017c0643f6a2c4ed50283ffac033fd7fca6b87e8573d984e51b860ccbb4e7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/William-Olson/k-means:/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] d2511d0bbee5918b85358f92de2ff29e93c225f15142ee3b7ef3358d222c5ed0
[INFO] running `"docker" "start" "-a" "d2511d0bbee5918b85358f92de2ff29e93c225f15142ee3b7ef3358d222c5ed0"`
[INFO] [stderr]    Compiling k-means v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `"docker" "inspect" "d2511d0bbee5918b85358f92de2ff29e93c225f15142ee3b7ef3358d222c5ed0"`
[INFO] running `"docker" "rm" "-f" "d2511d0bbee5918b85358f92de2ff29e93c225f15142ee3b7ef3358d222c5ed0"`
[INFO] [stdout] d2511d0bbee5918b85358f92de2ff29e93c225f15142ee3b7ef3358d222c5ed0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/William-Olson/k-means:/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] 12426e3b98fd23634489461aca518c1d142f99426759ac9db9376a77bca6ca94
[INFO] running `"docker" "start" "-a" "12426e3b98fd23634489461aca518c1d142f99426759ac9db9376a77bca6ca94"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/k_means-6532d8d92e991664
[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" "12426e3b98fd23634489461aca518c1d142f99426759ac9db9376a77bca6ca94"`
[INFO] running `"docker" "rm" "-f" "12426e3b98fd23634489461aca518c1d142f99426759ac9db9376a77bca6ca94"`
[INFO] [stdout] 12426e3b98fd23634489461aca518c1d142f99426759ac9db9376a77bca6ca94