[INFO] updating cached repository kwebi/wc-cli
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kwebi/wc-cli
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kwebi/wc-cli" "work/ex/beta-1.38-1/sources/1.37.0/gh/kwebi/wc-cli"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/kwebi/wc-cli'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kwebi/wc-cli" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kwebi/wc-cli"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kwebi/wc-cli'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4e99c038bc2ffebf686b8a14600cddc0ff6a0f62
[INFO] sha for GitHub repo kwebi/wc-cli: 4e99c038bc2ffebf686b8a14600cddc0ff6a0f62
[INFO] validating manifest of kwebi/wc-cli 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 kwebi/wc-cli 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 kwebi/wc-cli
[INFO] finished frobbing kwebi/wc-cli
[INFO] frobbed toml for kwebi/wc-cli written to work/ex/beta-1.38-1/sources/1.37.0/gh/kwebi/wc-cli/Cargo.toml
[INFO] started frobbing kwebi/wc-cli
[INFO] finished frobbing kwebi/wc-cli
[INFO] frobbed toml for kwebi/wc-cli written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kwebi/wc-cli/Cargo.toml
[INFO] crate kwebi/wc-cli 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 kwebi/wc-cli 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/kwebi/wc-cli:/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] 25786238f4b66794f35bdd62ada0dba093952193d52d919bf001f5af8b388257
[INFO] running `"docker" "start" "-a" "25786238f4b66794f35bdd62ada0dba093952193d52d919bf001f5af8b388257"`
[INFO] [stderr]    Compiling wc-cli v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: field is never used: `path`
[INFO] [stderr]   --> src/main.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     path: Option<PathBuf>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `"docker" "inspect" "25786238f4b66794f35bdd62ada0dba093952193d52d919bf001f5af8b388257"`
[INFO] running `"docker" "rm" "-f" "25786238f4b66794f35bdd62ada0dba093952193d52d919bf001f5af8b388257"`
[INFO] [stdout] 25786238f4b66794f35bdd62ada0dba093952193d52d919bf001f5af8b388257
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/kwebi/wc-cli:/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] 432369850b1fa6e6864ceac2e8d4c1f6b375b836b56bde0276f4df0e24002a28
[INFO] running `"docker" "start" "-a" "432369850b1fa6e6864ceac2e8d4c1f6b375b836b56bde0276f4df0e24002a28"`
[INFO] [stderr]    Compiling wc-cli v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: field is never used: `path`
[INFO] [stderr]   --> src/main.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     path: Option<PathBuf>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `"docker" "inspect" "432369850b1fa6e6864ceac2e8d4c1f6b375b836b56bde0276f4df0e24002a28"`
[INFO] running `"docker" "rm" "-f" "432369850b1fa6e6864ceac2e8d4c1f6b375b836b56bde0276f4df0e24002a28"`
[INFO] [stdout] 432369850b1fa6e6864ceac2e8d4c1f6b375b836b56bde0276f4df0e24002a28
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/kwebi/wc-cli:/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] 049b825ad41fc2f42e1ecaf0e0affc2e909fc396baaa4cf143dda4f4faecbd94
[INFO] running `"docker" "start" "-a" "049b825ad41fc2f42e1ecaf0e0affc2e909fc396baaa4cf143dda4f4faecbd94"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/wc_cli-76952dc2bd4bac76
[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" "049b825ad41fc2f42e1ecaf0e0affc2e909fc396baaa4cf143dda4f4faecbd94"`
[INFO] running `"docker" "rm" "-f" "049b825ad41fc2f42e1ecaf0e0affc2e909fc396baaa4cf143dda4f4faecbd94"`
[INFO] [stdout] 049b825ad41fc2f42e1ecaf0e0affc2e909fc396baaa4cf143dda4f4faecbd94