[INFO] crate sloc 0.0.1 is already in cache
[INFO] extracting crate sloc 0.0.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/sloc/0.0.1
[INFO] extracting crate sloc 0.0.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/sloc/0.0.1
[INFO] validating manifest of sloc-0.0.1 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 sloc-0.0.1 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 sloc-0.0.1
[INFO] finished frobbing sloc-0.0.1
[INFO] frobbed toml for sloc-0.0.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/sloc/0.0.1/Cargo.toml
[INFO] started frobbing sloc-0.0.1
[INFO] finished frobbing sloc-0.0.1
[INFO] frobbed toml for sloc-0.0.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/sloc/0.0.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 sloc-0.0.1 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-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/sloc/0.0.1:/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] 3fcee75e0391ce2c1fa25e7287523cc5835fabaee11cdf98a8fc2e02efb57dcc
[INFO] running `"docker" "start" "-a" "3fcee75e0391ce2c1fa25e7287523cc5835fabaee11cdf98a8fc2e02efb57dcc"`
[INFO] [stderr]    Compiling sloc v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `matches`
[INFO] [stderr]   --> src/main.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |     let matches = App::new("Source lines of code")
[INFO] [stderr]    |         ^^^^^^^ help: consider prefixing with an underscore: `_matches`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `"docker" "inspect" "3fcee75e0391ce2c1fa25e7287523cc5835fabaee11cdf98a8fc2e02efb57dcc"`
[INFO] running `"docker" "rm" "-f" "3fcee75e0391ce2c1fa25e7287523cc5835fabaee11cdf98a8fc2e02efb57dcc"`
[INFO] [stdout] 3fcee75e0391ce2c1fa25e7287523cc5835fabaee11cdf98a8fc2e02efb57dcc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/sloc/0.0.1:/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] 8a2097a67f6e3df99343fc5736392ecffdbec91b52916532eeee510814453491
[INFO] running `"docker" "start" "-a" "8a2097a67f6e3df99343fc5736392ecffdbec91b52916532eeee510814453491"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling sloc v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `matches`
[INFO] [stderr]   --> src/main.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |     let matches = App::new("Source lines of code")
[INFO] [stderr]    |         ^^^^^^^ help: consider prefixing with an underscore: `_matches`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.69s
[INFO] running `"docker" "inspect" "8a2097a67f6e3df99343fc5736392ecffdbec91b52916532eeee510814453491"`
[INFO] running `"docker" "rm" "-f" "8a2097a67f6e3df99343fc5736392ecffdbec91b52916532eeee510814453491"`
[INFO] [stdout] 8a2097a67f6e3df99343fc5736392ecffdbec91b52916532eeee510814453491
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/sloc/0.0.1:/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] 7a3fa1014f37df2a38dceda4990b00b54bc2277734b82bb3f73cb7c1141bb100
[INFO] running `"docker" "start" "-a" "7a3fa1014f37df2a38dceda4990b00b54bc2277734b82bb3f73cb7c1141bb100"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/sloc-0fae3717d84f8f2a
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test get_counters_test ... ok
[INFO] [stdout] test get_files_test ... ok
[INFO] [stdout] test get_stats_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "7a3fa1014f37df2a38dceda4990b00b54bc2277734b82bb3f73cb7c1141bb100"`
[INFO] running `"docker" "rm" "-f" "7a3fa1014f37df2a38dceda4990b00b54bc2277734b82bb3f73cb7c1141bb100"`
[INFO] [stdout] 7a3fa1014f37df2a38dceda4990b00b54bc2277734b82bb3f73cb7c1141bb100