[INFO] updating cached repository aphreet/rpm_srv
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/aphreet/rpm_srv
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/aphreet/rpm_srv" "work/ex/beta-1.38-1/sources/1.37.0/gh/aphreet/rpm_srv"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/aphreet/rpm_srv'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/aphreet/rpm_srv" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aphreet/rpm_srv"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aphreet/rpm_srv'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 88f051c5e2db21285d54568340302c560983dae1
[INFO] sha for GitHub repo aphreet/rpm_srv: 88f051c5e2db21285d54568340302c560983dae1
[INFO] validating manifest of aphreet/rpm_srv 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 aphreet/rpm_srv 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 aphreet/rpm_srv
[INFO] finished frobbing aphreet/rpm_srv
[INFO] frobbed toml for aphreet/rpm_srv written to work/ex/beta-1.38-1/sources/1.37.0/gh/aphreet/rpm_srv/Cargo.toml
[INFO] started frobbing aphreet/rpm_srv
[INFO] finished frobbing aphreet/rpm_srv
[INFO] frobbed toml for aphreet/rpm_srv written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aphreet/rpm_srv/Cargo.toml
[INFO] crate aphreet/rpm_srv 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]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing aphreet/rpm_srv against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aphreet/rpm_srv:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 4eee96f7c98379099a3eef750e76be97322863cdaf519c6864f4dd08e4bd5062
[INFO] running `"docker" "start" "-a" "4eee96f7c98379099a3eef750e76be97322863cdaf519c6864f4dd08e4bd5062"`
[INFO] [stderr]    Compiling rpm_srv v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `cache_arg`
[INFO] [stderr]    --> src/main.rs:139:13
[INFO] [stderr]     |
[INFO] [stderr] 139 |         let cache_arg = cache_arg(&self.file_root);
[INFO] [stderr]     |             ^^^^^^^^^ help: consider prefixing with an underscore: `_cache_arg`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.89s
[INFO] running `"docker" "inspect" "4eee96f7c98379099a3eef750e76be97322863cdaf519c6864f4dd08e4bd5062"`
[INFO] running `"docker" "rm" "-f" "4eee96f7c98379099a3eef750e76be97322863cdaf519c6864f4dd08e4bd5062"`
[INFO] [stdout] 4eee96f7c98379099a3eef750e76be97322863cdaf519c6864f4dd08e4bd5062
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aphreet/rpm_srv:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] b6f0b71d265fc444da6b36042712b667e1769aed062932c7068998f5f76b1356
[INFO] running `"docker" "start" "-a" "b6f0b71d265fc444da6b36042712b667e1769aed062932c7068998f5f76b1356"`
[INFO] [stderr]    Compiling rpm_srv v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `cache_arg`
[INFO] [stderr]    --> src/main.rs:139:13
[INFO] [stderr]     |
[INFO] [stderr] 139 |         let cache_arg = cache_arg(&self.file_root);
[INFO] [stderr]     |             ^^^^^^^^^ help: consider prefixing with an underscore: `_cache_arg`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.24s
[INFO] running `"docker" "inspect" "b6f0b71d265fc444da6b36042712b667e1769aed062932c7068998f5f76b1356"`
[INFO] running `"docker" "rm" "-f" "b6f0b71d265fc444da6b36042712b667e1769aed062932c7068998f5f76b1356"`
[INFO] [stdout] b6f0b71d265fc444da6b36042712b667e1769aed062932c7068998f5f76b1356
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aphreet/rpm_srv:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 4c6e87dd5e6b003a59447c1977784bc1ac4e2974e49acec7fd88c5b891ea3c4a
[INFO] running `"docker" "start" "-a" "4c6e87dd5e6b003a59447c1977784bc1ac4e2974e49acec7fd88c5b891ea3c4a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rpm_srv-06397702c2510c39
[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" "4c6e87dd5e6b003a59447c1977784bc1ac4e2974e49acec7fd88c5b891ea3c4a"`
[INFO] running `"docker" "rm" "-f" "4c6e87dd5e6b003a59447c1977784bc1ac4e2974e49acec7fd88c5b891ea3c4a"`
[INFO] [stdout] 4c6e87dd5e6b003a59447c1977784bc1ac4e2974e49acec7fd88c5b891ea3c4a