[INFO] updating cached repository sirkibsirkib/zork
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/sirkibsirkib/zork
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/sirkibsirkib/zork" "work/ex/beta-1.37-6/sources/1.36.0/gh/sirkibsirkib/zork"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/sirkibsirkib/zork'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/sirkibsirkib/zork" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/sirkibsirkib/zork"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/sirkibsirkib/zork'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 46b51d031e607c350fc634426670f43e92542b50
[INFO] sha for GitHub repo sirkibsirkib/zork: 46b51d031e607c350fc634426670f43e92542b50
[INFO] validating manifest of sirkibsirkib/zork 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 sirkibsirkib/zork 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 sirkibsirkib/zork
[INFO] finished frobbing sirkibsirkib/zork
[INFO] frobbed toml for sirkibsirkib/zork written to work/ex/beta-1.37-6/sources/1.36.0/gh/sirkibsirkib/zork/Cargo.toml
[INFO] started frobbing sirkibsirkib/zork
[INFO] finished frobbing sirkibsirkib/zork
[INFO] frobbed toml for sirkibsirkib/zork written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/sirkibsirkib/zork/Cargo.toml
[INFO] crate sirkibsirkib/zork 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 sirkibsirkib/zork 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-5/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/sirkibsirkib/zork:/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] 8002108300b30e09505d3ec25c768e744cd3ee4a226aa643dfcf3014dd3c6f97
[INFO] running `"docker" "start" "-a" "8002108300b30e09505d3ec25c768e744cd3ee4a226aa643dfcf3014dd3c6f97"`
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]    Compiling derive-new v0.5.6
[INFO] [stderr]    Compiling zork v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: struct is never constructed: `Person`
[INFO] [stderr]    --> src/main.rs:188:1
[INFO] [stderr]     |
[INFO] [stderr] 188 | struct Person {
[INFO] [stderr]     | ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.95s
[INFO] running `"docker" "inspect" "8002108300b30e09505d3ec25c768e744cd3ee4a226aa643dfcf3014dd3c6f97"`
[INFO] running `"docker" "rm" "-f" "8002108300b30e09505d3ec25c768e744cd3ee4a226aa643dfcf3014dd3c6f97"`
[INFO] [stdout] 8002108300b30e09505d3ec25c768e744cd3ee4a226aa643dfcf3014dd3c6f97
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/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/sirkibsirkib/zork:/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] 2090bcd1c104f7b71b828cc064b59c06a7736b8820df97d364897a83a724de22
[INFO] running `"docker" "start" "-a" "2090bcd1c104f7b71b828cc064b59c06a7736b8820df97d364897a83a724de22"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling zork v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: struct is never constructed: `Person`
[INFO] [stderr]    --> src/main.rs:188:1
[INFO] [stderr]     |
[INFO] [stderr] 188 | struct Person {
[INFO] [stderr]     | ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `"docker" "inspect" "2090bcd1c104f7b71b828cc064b59c06a7736b8820df97d364897a83a724de22"`
[INFO] running `"docker" "rm" "-f" "2090bcd1c104f7b71b828cc064b59c06a7736b8820df97d364897a83a724de22"`
[INFO] [stdout] 2090bcd1c104f7b71b828cc064b59c06a7736b8820df97d364897a83a724de22
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/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/sirkibsirkib/zork:/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] 215405a1eb81545269e6a3086d9aeb7f84fa50905046281f1d489b90b1120553
[INFO] running `"docker" "start" "-a" "215405a1eb81545269e6a3086d9aeb7f84fa50905046281f1d489b90b1120553"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/zork-2580f2d4bf31f70f
[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" "215405a1eb81545269e6a3086d9aeb7f84fa50905046281f1d489b90b1120553"`
[INFO] running `"docker" "rm" "-f" "215405a1eb81545269e6a3086d9aeb7f84fa50905046281f1d489b90b1120553"`
[INFO] [stdout] 215405a1eb81545269e6a3086d9aeb7f84fa50905046281f1d489b90b1120553