[INFO] crate wc-cli 0.1.0 is already in cache
[INFO] extracting crate wc-cli 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/wc-cli/0.1.0
[INFO] extracting crate wc-cli 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/wc-cli/0.1.0
[INFO] validating manifest of wc-cli-0.1.0 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 wc-cli-0.1.0 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 wc-cli-0.1.0
[INFO] finished frobbing wc-cli-0.1.0
[INFO] frobbed toml for wc-cli-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/wc-cli/0.1.0/Cargo.toml
[INFO] started frobbing wc-cli-0.1.0
[INFO] finished frobbing wc-cli-0.1.0
[INFO] frobbed toml for wc-cli-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/wc-cli/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 wc-cli-0.1.0 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-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/wc-cli/0.1.0:/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] adb466e8c38914194b08d5acd2f27b8270f3b229633e682c0c7a46aac4e67182
[INFO] running `"docker" "start" "-a" "adb466e8c38914194b08d5acd2f27b8270f3b229633e682c0c7a46aac4e67182"`
[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 1.06s
[INFO] running `"docker" "inspect" "adb466e8c38914194b08d5acd2f27b8270f3b229633e682c0c7a46aac4e67182"`
[INFO] running `"docker" "rm" "-f" "adb466e8c38914194b08d5acd2f27b8270f3b229633e682c0c7a46aac4e67182"`
[INFO] [stdout] adb466e8c38914194b08d5acd2f27b8270f3b229633e682c0c7a46aac4e67182
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/wc-cli/0.1.0:/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] e64ce81e3b8a1a39e142ac644a6155b12122377be21970dc49eee51caeb2d708
[INFO] running `"docker" "start" "-a" "e64ce81e3b8a1a39e142ac644a6155b12122377be21970dc49eee51caeb2d708"`
[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 0.63s
[INFO] running `"docker" "inspect" "e64ce81e3b8a1a39e142ac644a6155b12122377be21970dc49eee51caeb2d708"`
[INFO] running `"docker" "rm" "-f" "e64ce81e3b8a1a39e142ac644a6155b12122377be21970dc49eee51caeb2d708"`
[INFO] [stdout] e64ce81e3b8a1a39e142ac644a6155b12122377be21970dc49eee51caeb2d708
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/wc-cli/0.1.0:/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] cfd8ba506b3ec8e4b6ae4f6a289083f490330e9bf555fc99f5cb27436e92deeb
[INFO] running `"docker" "start" "-a" "cfd8ba506b3ec8e4b6ae4f6a289083f490330e9bf555fc99f5cb27436e92deeb"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/wc_cli-ee33b98b6fa5091b
[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" "cfd8ba506b3ec8e4b6ae4f6a289083f490330e9bf555fc99f5cb27436e92deeb"`
[INFO] running `"docker" "rm" "-f" "cfd8ba506b3ec8e4b6ae4f6a289083f490330e9bf555fc99f5cb27436e92deeb"`
[INFO] [stdout] cfd8ba506b3ec8e4b6ae4f6a289083f490330e9bf555fc99f5cb27436e92deeb