[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-1.38-1/sources/1.37.0/gh/sirkibsirkib/zork"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/sirkibsirkib/zork'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/sirkibsirkib/zork" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sirkibsirkib/zork"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/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 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of sirkibsirkib/zork 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 sirkibsirkib/zork
[INFO] finished frobbing sirkibsirkib/zork
[INFO] frobbed toml for sirkibsirkib/zork written to work/ex/beta-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/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" "+1.37.0" "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 sirkibsirkib/zork 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] a54d283183cc6aa59904f0e8788d183061cca2e363c48343daf0b2bd7382fdea
[INFO] running `"docker" "start" "-a" "a54d283183cc6aa59904f0e8788d183061cca2e363c48343daf0b2bd7382fdea"`
[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 5.67s
[INFO] running `"docker" "inspect" "a54d283183cc6aa59904f0e8788d183061cca2e363c48343daf0b2bd7382fdea"`
[INFO] running `"docker" "rm" "-f" "a54d283183cc6aa59904f0e8788d183061cca2e363c48343daf0b2bd7382fdea"`
[INFO] [stdout] a54d283183cc6aa59904f0e8788d183061cca2e363c48343daf0b2bd7382fdea
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 1bee6ddf24fb297974fbe3c1b71e462d9db24687c7baaf605854e71ad9693f7a
[INFO] running `"docker" "start" "-a" "1bee6ddf24fb297974fbe3c1b71e462d9db24687c7baaf605854e71ad9693f7a"`
[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 1.01s
[INFO] running `"docker" "inspect" "1bee6ddf24fb297974fbe3c1b71e462d9db24687c7baaf605854e71ad9693f7a"`
[INFO] running `"docker" "rm" "-f" "1bee6ddf24fb297974fbe3c1b71e462d9db24687c7baaf605854e71ad9693f7a"`
[INFO] [stdout] 1bee6ddf24fb297974fbe3c1b71e462d9db24687c7baaf605854e71ad9693f7a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] ef7b6cc8350a608b53ff41fe583717f4a568e670f180e2dd345bd04a82f7809f
[INFO] running `"docker" "start" "-a" "ef7b6cc8350a608b53ff41fe583717f4a568e670f180e2dd345bd04a82f7809f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/zork-ae9d487f624e6423
[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" "ef7b6cc8350a608b53ff41fe583717f4a568e670f180e2dd345bd04a82f7809f"`
[INFO] running `"docker" "rm" "-f" "ef7b6cc8350a608b53ff41fe583717f4a568e670f180e2dd345bd04a82f7809f"`
[INFO] [stdout] ef7b6cc8350a608b53ff41fe583717f4a568e670f180e2dd345bd04a82f7809f