[INFO] updating cached repository jpeach/ss
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jpeach/ss
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jpeach/ss" "work/ex/beta-1.38-1/sources/1.37.0/gh/jpeach/ss"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/jpeach/ss'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jpeach/ss" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jpeach/ss"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jpeach/ss'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 49fa2dd42403ddaa75859e3b41f3f2c32fe94710
[INFO] sha for GitHub repo jpeach/ss: 49fa2dd42403ddaa75859e3b41f3f2c32fe94710
[INFO] validating manifest of jpeach/ss 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 jpeach/ss 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 jpeach/ss
[INFO] finished frobbing jpeach/ss
[INFO] frobbed toml for jpeach/ss written to work/ex/beta-1.38-1/sources/1.37.0/gh/jpeach/ss/Cargo.toml
[INFO] started frobbing jpeach/ss
[INFO] finished frobbing jpeach/ss
[INFO] frobbed toml for jpeach/ss written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jpeach/ss/Cargo.toml
[INFO] crate jpeach/ss 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] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jpeach/ss/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 jpeach/ss 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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jpeach/ss:/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] f70de918e947cc29f7bb22e846dcf094e0e57c7eebca17ad469897f4102e87db
[INFO] running `"docker" "start" "-a" "f70de918e947cc29f7bb22e846dcf094e0e57c7eebca17ad469897f4102e87db"`
[INFO] [stderr]    Compiling nix v0.5.1
[INFO] [stderr]    Compiling ss v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/netlink.rs:255:9
[INFO] [stderr]     |
[INFO] [stderr] 255 |         socket::sendmsg(self.fd, &iov, &[], socket::MsgFlags::empty(), Some(&dst));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: denote infinite loops with `loop { ... }`
[INFO] [stderr]    --> src/netlink.rs:257:9
[INFO] [stderr]     |
[INFO] [stderr] 257 |         while true {
[INFO] [stderr]     |         ^^^^^^^^^^ help: use `loop`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(while_true)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.22s
[INFO] running `"docker" "inspect" "f70de918e947cc29f7bb22e846dcf094e0e57c7eebca17ad469897f4102e87db"`
[INFO] running `"docker" "rm" "-f" "f70de918e947cc29f7bb22e846dcf094e0e57c7eebca17ad469897f4102e87db"`
[INFO] [stdout] f70de918e947cc29f7bb22e846dcf094e0e57c7eebca17ad469897f4102e87db
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jpeach/ss:/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] 4ef81ad51a6db3e247bb6bc924ddd91828b23ac28675eb986d908fec2d5a90d9
[INFO] running `"docker" "start" "-a" "4ef81ad51a6db3e247bb6bc924ddd91828b23ac28675eb986d908fec2d5a90d9"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling ss v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/netlink.rs:255:9
[INFO] [stderr]     |
[INFO] [stderr] 255 |         socket::sendmsg(self.fd, &iov, &[], socket::MsgFlags::empty(), Some(&dst));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: denote infinite loops with `loop { ... }`
[INFO] [stderr]    --> src/netlink.rs:257:9
[INFO] [stderr]     |
[INFO] [stderr] 257 |         while true {
[INFO] [stderr]     |         ^^^^^^^^^^ help: use `loop`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(while_true)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `"docker" "inspect" "4ef81ad51a6db3e247bb6bc924ddd91828b23ac28675eb986d908fec2d5a90d9"`
[INFO] running `"docker" "rm" "-f" "4ef81ad51a6db3e247bb6bc924ddd91828b23ac28675eb986d908fec2d5a90d9"`
[INFO] [stdout] 4ef81ad51a6db3e247bb6bc924ddd91828b23ac28675eb986d908fec2d5a90d9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jpeach/ss:/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] c92d70eccec2dea81f85d5242901a71fb8ec4d5f6b2bdc862984460743afd312
[INFO] running `"docker" "start" "-a" "c92d70eccec2dea81f85d5242901a71fb8ec4d5f6b2bdc862984460743afd312"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/ss-dcdb2c2418914e26
[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] [stderr]      Running /opt/crater/target/debug/deps/ss-2d7306c0b4d45c95
[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] [stderr]    Doc-tests ss
[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" "c92d70eccec2dea81f85d5242901a71fb8ec4d5f6b2bdc862984460743afd312"`
[INFO] running `"docker" "rm" "-f" "c92d70eccec2dea81f85d5242901a71fb8ec4d5f6b2bdc862984460743afd312"`
[INFO] [stdout] c92d70eccec2dea81f85d5242901a71fb8ec4d5f6b2bdc862984460743afd312