[INFO] updating cached repository pcarleton/dumb-dig
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/pcarleton/dumb-dig
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/pcarleton/dumb-dig" "work/ex/beta-1.37-6/sources/1.36.0/gh/pcarleton/dumb-dig"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/pcarleton/dumb-dig'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/pcarleton/dumb-dig" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/pcarleton/dumb-dig"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/pcarleton/dumb-dig'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f701f0ac10b1eb041aed2fdfc3d244913bb35b04
[INFO] sha for GitHub repo pcarleton/dumb-dig: f701f0ac10b1eb041aed2fdfc3d244913bb35b04
[INFO] validating manifest of pcarleton/dumb-dig 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 pcarleton/dumb-dig 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 pcarleton/dumb-dig
[INFO] finished frobbing pcarleton/dumb-dig
[INFO] frobbed toml for pcarleton/dumb-dig written to work/ex/beta-1.37-6/sources/1.36.0/gh/pcarleton/dumb-dig/Cargo.toml
[INFO] started frobbing pcarleton/dumb-dig
[INFO] finished frobbing pcarleton/dumb-dig
[INFO] frobbed toml for pcarleton/dumb-dig written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/pcarleton/dumb-dig/Cargo.toml
[INFO] crate pcarleton/dumb-dig 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] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing pcarleton/dumb-dig against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/pcarleton/dumb-dig:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] f0ccece5e567cc7fb375570cceb24a9165103d2f8613576720c88966d749bb10
[INFO] running `"docker" "start" "-a" "f0ccece5e567cc7fb375570cceb24a9165103d2f8613576720c88966d749bb10"`
[INFO] [stderr]    Compiling rdns v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `print_bytes`
[INFO] [stderr]    --> src/main.rs:308:1
[INFO] [stderr]     |
[INFO] [stderr] 308 | fn print_bytes(bytes: &[u8]) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `compare_bytes`
[INFO] [stderr]    --> src/main.rs:314:1
[INFO] [stderr]     |
[INFO] [stderr] 314 | fn compare_bytes(a: &[u8], b: &[u8]) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `"docker" "inspect" "f0ccece5e567cc7fb375570cceb24a9165103d2f8613576720c88966d749bb10"`
[INFO] running `"docker" "rm" "-f" "f0ccece5e567cc7fb375570cceb24a9165103d2f8613576720c88966d749bb10"`
[INFO] [stdout] f0ccece5e567cc7fb375570cceb24a9165103d2f8613576720c88966d749bb10
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/pcarleton/dumb-dig:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 11fa725c1d42b7a743af42c880a11d45027d67921ab5d88adb99db3a85380369
[INFO] running `"docker" "start" "-a" "11fa725c1d42b7a743af42c880a11d45027d67921ab5d88adb99db3a85380369"`
[INFO] [stderr]    Compiling rdns v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `print_bytes`
[INFO] [stderr]    --> src/main.rs:308:1
[INFO] [stderr]     |
[INFO] [stderr] 308 | fn print_bytes(bytes: &[u8]) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `compare_bytes`
[INFO] [stderr]    --> src/main.rs:314:1
[INFO] [stderr]     |
[INFO] [stderr] 314 | fn compare_bytes(a: &[u8], b: &[u8]) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `"docker" "inspect" "11fa725c1d42b7a743af42c880a11d45027d67921ab5d88adb99db3a85380369"`
[INFO] running `"docker" "rm" "-f" "11fa725c1d42b7a743af42c880a11d45027d67921ab5d88adb99db3a85380369"`
[INFO] [stdout] 11fa725c1d42b7a743af42c880a11d45027d67921ab5d88adb99db3a85380369
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/pcarleton/dumb-dig:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 313d42b354337da3fdda6faf489b984c8740ddc11e0dc39e18eef813c640ba8d
[INFO] running `"docker" "start" "-a" "313d42b354337da3fdda6faf489b984c8740ddc11e0dc39e18eef813c640ba8d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rdns-72223cb90e2e4d49
[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" "313d42b354337da3fdda6faf489b984c8740ddc11e0dc39e18eef813c640ba8d"`
[INFO] running `"docker" "rm" "-f" "313d42b354337da3fdda6faf489b984c8740ddc11e0dc39e18eef813c640ba8d"`
[INFO] [stdout] 313d42b354337da3fdda6faf489b984c8740ddc11e0dc39e18eef813c640ba8d