[INFO] updating cached repository Chabare/Sonos
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Chabare/Sonos
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Chabare/Sonos" "work/ex/beta-1.37-6/sources/1.36.0/gh/Chabare/Sonos"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/Chabare/Sonos'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Chabare/Sonos" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Chabare/Sonos"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Chabare/Sonos'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5839e7f4300d6db6d0dc8c74578c5d7d83752334
[INFO] sha for GitHub repo Chabare/Sonos: 5839e7f4300d6db6d0dc8c74578c5d7d83752334
[INFO] validating manifest of Chabare/Sonos 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 Chabare/Sonos 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 Chabare/Sonos
[INFO] finished frobbing Chabare/Sonos
[INFO] frobbed toml for Chabare/Sonos written to work/ex/beta-1.37-6/sources/1.36.0/gh/Chabare/Sonos/Cargo.toml
[INFO] started frobbing Chabare/Sonos
[INFO] finished frobbing Chabare/Sonos
[INFO] frobbed toml for Chabare/Sonos written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Chabare/Sonos/Cargo.toml
[INFO] crate Chabare/Sonos 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Chabare/Sonos 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/Chabare/Sonos:/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] 0241c209207568806b2db1cfd5781a395cbdfc163aec80c176cabb5ecf24504c
[INFO] running `"docker" "start" "-a" "0241c209207568806b2db1cfd5781a395cbdfc163aec80c176cabb5ecf24504c"`
[INFO] [stderr]    Compiling futures v0.1.15
[INFO] [stderr]    Compiling fern v0.4.2
[INFO] [stderr]    Compiling num-bigint v0.1.40
[INFO] [stderr]    Compiling num-rational v0.1.39
[INFO] [stderr]    Compiling num v0.1.40
[INFO] [stderr]    Compiling socket v0.0.7
[INFO] [stderr]    Compiling sonos_discovery v0.0.1
[INFO] [stderr]    Compiling sonos v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `empty`
[INFO] [stderr]  --> src/zone/info.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pub fn empty() -> Self {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.49s
[INFO] running `"docker" "inspect" "0241c209207568806b2db1cfd5781a395cbdfc163aec80c176cabb5ecf24504c"`
[INFO] running `"docker" "rm" "-f" "0241c209207568806b2db1cfd5781a395cbdfc163aec80c176cabb5ecf24504c"`
[INFO] [stdout] 0241c209207568806b2db1cfd5781a395cbdfc163aec80c176cabb5ecf24504c
[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/Chabare/Sonos:/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] 3eb3d12a998fc757a2c22f366f71f9e358d620c75a0097bb8559216e427d29a4
[INFO] running `"docker" "start" "-a" "3eb3d12a998fc757a2c22f366f71f9e358d620c75a0097bb8559216e427d29a4"`
[INFO] [stderr]    Compiling sonos v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `empty`
[INFO] [stderr]  --> src/zone/info.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pub fn empty() -> Self {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.77s
[INFO] running `"docker" "inspect" "3eb3d12a998fc757a2c22f366f71f9e358d620c75a0097bb8559216e427d29a4"`
[INFO] running `"docker" "rm" "-f" "3eb3d12a998fc757a2c22f366f71f9e358d620c75a0097bb8559216e427d29a4"`
[INFO] [stdout] 3eb3d12a998fc757a2c22f366f71f9e358d620c75a0097bb8559216e427d29a4
[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/Chabare/Sonos:/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] 5fa15434375144ea955bf67d3759e9be8d26d9d12aa22631c2feb521d5546351
[INFO] running `"docker" "start" "-a" "5fa15434375144ea955bf67d3759e9be8d26d9d12aa22631c2feb521d5546351"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/sonos-b107eba6816f1d88
[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/sonos-b8c00b6a9bdfcc4c
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::setup ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sonos
[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" "5fa15434375144ea955bf67d3759e9be8d26d9d12aa22631c2feb521d5546351"`
[INFO] running `"docker" "rm" "-f" "5fa15434375144ea955bf67d3759e9be8d26d9d12aa22631c2feb521d5546351"`
[INFO] [stdout] 5fa15434375144ea955bf67d3759e9be8d26d9d12aa22631c2feb521d5546351