[INFO] updating cached repository sector-f/xtraceroute
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/sector-f/xtraceroute
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/sector-f/xtraceroute" "work/ex/beta-1.37-6/sources/1.36.0/gh/sector-f/xtraceroute"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/sector-f/xtraceroute'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/sector-f/xtraceroute" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/sector-f/xtraceroute"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/sector-f/xtraceroute'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ca2a6b3278a3a668a00f9ee314ea6574e125db0f
[INFO] sha for GitHub repo sector-f/xtraceroute: ca2a6b3278a3a668a00f9ee314ea6574e125db0f
[INFO] validating manifest of sector-f/xtraceroute 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 sector-f/xtraceroute 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 sector-f/xtraceroute
[INFO] finished frobbing sector-f/xtraceroute
[INFO] frobbed toml for sector-f/xtraceroute written to work/ex/beta-1.37-6/sources/1.36.0/gh/sector-f/xtraceroute/Cargo.toml
[INFO] started frobbing sector-f/xtraceroute
[INFO] finished frobbing sector-f/xtraceroute
[INFO] frobbed toml for sector-f/xtraceroute written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/sector-f/xtraceroute/Cargo.toml
[INFO] crate sector-f/xtraceroute 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 sector-f/xtraceroute against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/sector-f/xtraceroute:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 54c0101219c52e773e142473bebb89ef58a09e77e70431a5e876571d1a98b1a6
[INFO] running `"docker" "start" "-a" "54c0101219c52e773e142473bebb89ef58a09e77e70431a5e876571d1a98b1a6"`
[INFO] [stderr]    Compiling socket2 v0.3.8
[INFO] [stderr]    Compiling socket v0.0.7
[INFO] [stderr]    Compiling traceroute v0.1.1
[INFO] [stderr]    Compiling dns-lookup v0.9.1
[INFO] [stderr]    Compiling xtraceroute v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::net::IpAddr`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::net::IpAddr;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `addr`
[INFO] [stderr]   --> src/main.rs:31:18
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn validate_addr(addr: String) -> Result<(), String> {
[INFO] [stderr]    |                  ^^^^ help: consider prefixing with an underscore: `_addr`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.45s
[INFO] running `"docker" "inspect" "54c0101219c52e773e142473bebb89ef58a09e77e70431a5e876571d1a98b1a6"`
[INFO] running `"docker" "rm" "-f" "54c0101219c52e773e142473bebb89ef58a09e77e70431a5e876571d1a98b1a6"`
[INFO] [stdout] 54c0101219c52e773e142473bebb89ef58a09e77e70431a5e876571d1a98b1a6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/sector-f/xtraceroute:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] c8c9385da551bf1c0f242dcc58133566f0916d92e81f7f9bb4413b72492c1109
[INFO] running `"docker" "start" "-a" "c8c9385da551bf1c0f242dcc58133566f0916d92e81f7f9bb4413b72492c1109"`
[INFO] [stderr]    Compiling xtraceroute v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::net::IpAddr`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::net::IpAddr;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `addr`
[INFO] [stderr]   --> src/main.rs:31:18
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn validate_addr(addr: String) -> Result<(), String> {
[INFO] [stderr]    |                  ^^^^ help: consider prefixing with an underscore: `_addr`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.35s
[INFO] running `"docker" "inspect" "c8c9385da551bf1c0f242dcc58133566f0916d92e81f7f9bb4413b72492c1109"`
[INFO] running `"docker" "rm" "-f" "c8c9385da551bf1c0f242dcc58133566f0916d92e81f7f9bb4413b72492c1109"`
[INFO] [stdout] c8c9385da551bf1c0f242dcc58133566f0916d92e81f7f9bb4413b72492c1109
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/sector-f/xtraceroute:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 272e7bc0c3d6001387826d53d1a60f6cf6f1aa18d5beb807edd389efa37fc368
[INFO] running `"docker" "start" "-a" "272e7bc0c3d6001387826d53d1a60f6cf6f1aa18d5beb807edd389efa37fc368"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/xtraceroute-07f061ac0b8e4f9b
[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" "272e7bc0c3d6001387826d53d1a60f6cf6f1aa18d5beb807edd389efa37fc368"`
[INFO] running `"docker" "rm" "-f" "272e7bc0c3d6001387826d53d1a60f6cf6f1aa18d5beb807edd389efa37fc368"`
[INFO] [stdout] 272e7bc0c3d6001387826d53d1a60f6cf6f1aa18d5beb807edd389efa37fc368