[INFO] updating cached repository gumballhead/fizzbuzz.rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/gumballhead/fizzbuzz.rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/gumballhead/fizzbuzz.rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/gumballhead/fizzbuzz.rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/gumballhead/fizzbuzz.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gumballhead/fizzbuzz.rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gumballhead/fizzbuzz.rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gumballhead/fizzbuzz.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2bd13ac4b666c08f62767963034a7df62948f44d
[INFO] sha for GitHub repo gumballhead/fizzbuzz.rs: 2bd13ac4b666c08f62767963034a7df62948f44d
[INFO] validating manifest of gumballhead/fizzbuzz.rs 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 gumballhead/fizzbuzz.rs 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 gumballhead/fizzbuzz.rs
[INFO] finished frobbing gumballhead/fizzbuzz.rs
[INFO] frobbed toml for gumballhead/fizzbuzz.rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/gumballhead/fizzbuzz.rs/Cargo.toml
[INFO] started frobbing gumballhead/fizzbuzz.rs
[INFO] finished frobbing gumballhead/fizzbuzz.rs
[INFO] frobbed toml for gumballhead/fizzbuzz.rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gumballhead/fizzbuzz.rs/Cargo.toml
[INFO] crate gumballhead/fizzbuzz.rs 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 gumballhead/fizzbuzz.rs against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gumballhead/fizzbuzz.rs:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 1d06c2e611c05f8ef269162a4b67ddc4322e975b2150bff9b915f37e86aee9fe
[INFO] running `"docker" "start" "-a" "1d06c2e611c05f8ef269162a4b67ddc4322e975b2150bff9b915f37e86aee9fe"`
[INFO] [stderr]    Compiling fizzbuzz v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.53s
[INFO] running `"docker" "inspect" "1d06c2e611c05f8ef269162a4b67ddc4322e975b2150bff9b915f37e86aee9fe"`
[INFO] running `"docker" "rm" "-f" "1d06c2e611c05f8ef269162a4b67ddc4322e975b2150bff9b915f37e86aee9fe"`
[INFO] [stdout] 1d06c2e611c05f8ef269162a4b67ddc4322e975b2150bff9b915f37e86aee9fe
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gumballhead/fizzbuzz.rs:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 12b6442563fdb7fa212803618681ac2656924fe94a1f34795d012f871f8b0038
[INFO] running `"docker" "start" "-a" "12b6442563fdb7fa212803618681ac2656924fe94a1f34795d012f871f8b0038"`
[INFO] [stderr]    Compiling fizzbuzz v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.58s
[INFO] running `"docker" "inspect" "12b6442563fdb7fa212803618681ac2656924fe94a1f34795d012f871f8b0038"`
[INFO] running `"docker" "rm" "-f" "12b6442563fdb7fa212803618681ac2656924fe94a1f34795d012f871f8b0038"`
[INFO] [stdout] 12b6442563fdb7fa212803618681ac2656924fe94a1f34795d012f871f8b0038
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gumballhead/fizzbuzz.rs:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] b9eef5dcc222ad3ee96630e6ec2883062cd8325fff1ae4dd785c75a5ab3d42a3
[INFO] running `"docker" "start" "-a" "b9eef5dcc222ad3ee96630e6ec2883062cd8325fff1ae4dd785c75a5ab3d42a3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/fizzbuzz-225e5b1399d6118e
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test::test_buzz ... ok
[INFO] [stdout] test test::test_fizz ... ok
[INFO] [stdout] test test::test_not_buzz ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/fizzbuzz-ab53c051ea7ae32a
[INFO] [stdout] test test::test_not_fizz ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test lib::test::test_not_fizz ... ok
[INFO] [stdout] test lib::test::test_not_buzz ... ok
[INFO] [stdout] test lib::test::test_fizz ... ok
[INFO] [stdout] test lib::test::test_buzz ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/fizzbuzz-3245f8dcd31ccbbb
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test test_three_is_fizz ... ok
[INFO] [stdout] test test_one_is_one ... ok
[INFO] [stdout] test test_fizzes ... ok
[INFO] [stdout] test test_fizzbuzzes ... ok
[INFO] [stdout] test test_fifteen_is_fizz_buzz ... ok
[INFO] [stdout] test test_five_is_buzz ... ok
[INFO] [stdout] test test_two_is_two ... ok
[INFO] [stdout] test test_buzzes ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fizzbuzz
[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" "b9eef5dcc222ad3ee96630e6ec2883062cd8325fff1ae4dd785c75a5ab3d42a3"`
[INFO] running `"docker" "rm" "-f" "b9eef5dcc222ad3ee96630e6ec2883062cd8325fff1ae4dd785c75a5ab3d42a3"`
[INFO] [stdout] b9eef5dcc222ad3ee96630e6ec2883062cd8325fff1ae4dd785c75a5ab3d42a3