[INFO] updating cached repository https://github.com/howeih/Day-21-k-means
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 20d6de0552e26663c9dc9f83d4d5c4dd469a1793
[INFO] testing howeih/Day-21-k-means against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhoweih%2FDay-21-k-means" "work/builds/worker-2/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/howeih/Day-21-k-means on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/howeih/Day-21-k-means
[INFO] finished tweaking git repo https://github.com/howeih/Day-21-k-means
[INFO] tweaked toml for git repo https://github.com/howeih/Day-21-k-means written to work/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/howeih/Day-21-k-means already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] a3e6aaa1126663c18b3a3124990f2b9ba5c667a0ded8100b690c68ca95556c10
[INFO] running `"docker" "start" "-a" "a3e6aaa1126663c18b3a3124990f2b9ba5c667a0ded8100b690c68ca95556c10"`
[INFO] [stderr]    Compiling gnuplot v0.0.25
[INFO] [stderr]    Compiling rand v0.5.1
[INFO] [stderr]    Compiling k-means v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.69s
[INFO] running `"docker" "inspect" "a3e6aaa1126663c18b3a3124990f2b9ba5c667a0ded8100b690c68ca95556c10"`
[INFO] running `"docker" "rm" "-f" "a3e6aaa1126663c18b3a3124990f2b9ba5c667a0ded8100b690c68ca95556c10"`
[INFO] [stdout] a3e6aaa1126663c18b3a3124990f2b9ba5c667a0ded8100b690c68ca95556c10
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 5e94ba3deccb813c8cae24ba9f1fb9af1a5418d052d6070230578b36bf093e03
[INFO] running `"docker" "start" "-a" "5e94ba3deccb813c8cae24ba9f1fb9af1a5418d052d6070230578b36bf093e03"`
[INFO] [stderr]    Compiling k-means v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `"docker" "inspect" "5e94ba3deccb813c8cae24ba9f1fb9af1a5418d052d6070230578b36bf093e03"`
[INFO] running `"docker" "rm" "-f" "5e94ba3deccb813c8cae24ba9f1fb9af1a5418d052d6070230578b36bf093e03"`
[INFO] [stdout] 5e94ba3deccb813c8cae24ba9f1fb9af1a5418d052d6070230578b36bf093e03
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 8370f7114e09a32a26d9d06b7d87e2cd02ace99ca113ca6e4c017555300cb64b
[INFO] running `"docker" "start" "-a" "8370f7114e09a32a26d9d06b7d87e2cd02ace99ca113ca6e4c017555300cb64b"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/k_means-ef137e3fed321f5a
[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" "8370f7114e09a32a26d9d06b7d87e2cd02ace99ca113ca6e4c017555300cb64b"`
[INFO] running `"docker" "rm" "-f" "8370f7114e09a32a26d9d06b7d87e2cd02ace99ca113ca6e4c017555300cb64b"`
[INFO] [stdout] 8370f7114e09a32a26d9d06b7d87e2cd02ace99ca113ca6e4c017555300cb64b