[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-1.38-1/sources/1.37.0/gh/sector-f/xtraceroute"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/sector-f/xtraceroute'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/sector-f/xtraceroute" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sector-f/xtraceroute"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/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 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of sector-f/xtraceroute 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 sector-f/xtraceroute
[INFO] finished frobbing sector-f/xtraceroute
[INFO] frobbed toml for sector-f/xtraceroute written to work/ex/beta-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/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" "+1.37.0" "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 sector-f/xtraceroute 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/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] a58c9164a36e7e326b91f5a2f260dd473721a5d08553eb4fe0d2add523d540ce
[INFO] running `"docker" "start" "-a" "a58c9164a36e7e326b91f5a2f260dd473721a5d08553eb4fe0d2add523d540ce"`
[INFO] [stderr]    Compiling num-bigint v0.2.0
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling num-complex v0.2.0
[INFO] [stderr]    Compiling socket2 v0.3.8
[INFO] [stderr]    Compiling serde_json v1.0.28
[INFO] [stderr]    Compiling dns-lookup v0.9.1
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling num v0.2.0
[INFO] [stderr]    Compiling socket v0.0.7
[INFO] [stderr]    Compiling traceroute v0.1.1
[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 20.79s
[INFO] running `"docker" "inspect" "a58c9164a36e7e326b91f5a2f260dd473721a5d08553eb4fe0d2add523d540ce"`
[INFO] running `"docker" "rm" "-f" "a58c9164a36e7e326b91f5a2f260dd473721a5d08553eb4fe0d2add523d540ce"`
[INFO] [stdout] a58c9164a36e7e326b91f5a2f260dd473721a5d08553eb4fe0d2add523d540ce
[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/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 0a284433c93ab08eee5c036d0656b9d4b36d818aafb2c29e855b5ebdac34cd7f
[INFO] running `"docker" "start" "-a" "0a284433c93ab08eee5c036d0656b9d4b36d818aafb2c29e855b5ebdac34cd7f"`
[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 1.33s
[INFO] running `"docker" "inspect" "0a284433c93ab08eee5c036d0656b9d4b36d818aafb2c29e855b5ebdac34cd7f"`
[INFO] running `"docker" "rm" "-f" "0a284433c93ab08eee5c036d0656b9d4b36d818aafb2c29e855b5ebdac34cd7f"`
[INFO] [stdout] 0a284433c93ab08eee5c036d0656b9d4b36d818aafb2c29e855b5ebdac34cd7f
[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/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] acbaa9cef10509c053b792fad7e1c392ddbbe129dc8400e146bd06262eebe389
[INFO] running `"docker" "start" "-a" "acbaa9cef10509c053b792fad7e1c392ddbbe129dc8400e146bd06262eebe389"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/xtraceroute-2c26196b3aa26184
[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" "acbaa9cef10509c053b792fad7e1c392ddbbe129dc8400e146bd06262eebe389"`
[INFO] running `"docker" "rm" "-f" "acbaa9cef10509c053b792fad7e1c392ddbbe129dc8400e146bd06262eebe389"`
[INFO] [stdout] acbaa9cef10509c053b792fad7e1c392ddbbe129dc8400e146bd06262eebe389