[INFO] updating cached repository brayniac/smolping
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/brayniac/smolping
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/brayniac/smolping" "work/ex/beta-1.38-1/sources/1.37.0/gh/brayniac/smolping"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/brayniac/smolping'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/brayniac/smolping" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/brayniac/smolping"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/brayniac/smolping'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0629c6509614c37b1318042ccd98795da8890ef1
[INFO] sha for GitHub repo brayniac/smolping: 0629c6509614c37b1318042ccd98795da8890ef1
[INFO] validating manifest of brayniac/smolping 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 brayniac/smolping 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 brayniac/smolping
[INFO] finished frobbing brayniac/smolping
[INFO] frobbed toml for brayniac/smolping written to work/ex/beta-1.38-1/sources/1.37.0/gh/brayniac/smolping/Cargo.toml
[INFO] started frobbing brayniac/smolping
[INFO] finished frobbing brayniac/smolping
[INFO] frobbed toml for brayniac/smolping written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/brayniac/smolping/Cargo.toml
[INFO] crate brayniac/smolping 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing brayniac/smolping 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-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/brayniac/smolping:/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] a41e0467b2cb4243e6092215166bd423e3a7ac184f12a0bb773925d431489f65
[INFO] running `"docker" "start" "-a" "a41e0467b2cb4243e6092215166bd423e3a7ac184f12a0bb773925d431489f65"`
[INFO] [stderr]    Compiling managed v0.3.0
[INFO] [stderr]    Compiling byteorder v1.0.0
[INFO] [stderr]    Compiling log-panics v1.1.0
[INFO] [stderr]    Compiling smoltcp v0.3.0
[INFO] [stderr]    Compiling smolping v0.0.1-pre (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:89:71
[INFO] [stderr]    |
[INFO] [stderr] 89 |                                            Box::new(arp_cache) as Box<ArpCache>,
[INFO] [stderr]    |                                                                       ^^^^^^^^ help: use `dyn`: `dyn ArpCache`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.83s
[INFO] running `"docker" "inspect" "a41e0467b2cb4243e6092215166bd423e3a7ac184f12a0bb773925d431489f65"`
[INFO] running `"docker" "rm" "-f" "a41e0467b2cb4243e6092215166bd423e3a7ac184f12a0bb773925d431489f65"`
[INFO] [stdout] a41e0467b2cb4243e6092215166bd423e3a7ac184f12a0bb773925d431489f65
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/brayniac/smolping:/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] 98d2dd5d198d2363e065c30fcd620602208f53509f04ffc047f9f5db8900e5d0
[INFO] running `"docker" "start" "-a" "98d2dd5d198d2363e065c30fcd620602208f53509f04ffc047f9f5db8900e5d0"`
[INFO] [stderr]    Compiling smolping v0.0.1-pre (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:89:71
[INFO] [stderr]    |
[INFO] [stderr] 89 |                                            Box::new(arp_cache) as Box<ArpCache>,
[INFO] [stderr]    |                                                                       ^^^^^^^^ help: use `dyn`: `dyn ArpCache`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `"docker" "inspect" "98d2dd5d198d2363e065c30fcd620602208f53509f04ffc047f9f5db8900e5d0"`
[INFO] running `"docker" "rm" "-f" "98d2dd5d198d2363e065c30fcd620602208f53509f04ffc047f9f5db8900e5d0"`
[INFO] [stdout] 98d2dd5d198d2363e065c30fcd620602208f53509f04ffc047f9f5db8900e5d0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/brayniac/smolping:/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] c31265c915a873a2d20233117563f78fc193a0a43bb8346e2d28858d04abfe2b
[INFO] running `"docker" "start" "-a" "c31265c915a873a2d20233117563f78fc193a0a43bb8346e2d28858d04abfe2b"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/smolping-22ffd7c6a74c459d
[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" "c31265c915a873a2d20233117563f78fc193a0a43bb8346e2d28858d04abfe2b"`
[INFO] running `"docker" "rm" "-f" "c31265c915a873a2d20233117563f78fc193a0a43bb8346e2d28858d04abfe2b"`
[INFO] [stdout] c31265c915a873a2d20233117563f78fc193a0a43bb8346e2d28858d04abfe2b