[INFO] updating cached repository pczora/rusty_douglas
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/pczora/rusty_douglas
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/pczora/rusty_douglas" "work/ex/beta-1.38-1/sources/1.37.0/gh/pczora/rusty_douglas"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/pczora/rusty_douglas'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/pczora/rusty_douglas" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/pczora/rusty_douglas"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/pczora/rusty_douglas'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] eb5aade06334c6821cac23938f31d1490ae537a6
[INFO] sha for GitHub repo pczora/rusty_douglas: eb5aade06334c6821cac23938f31d1490ae537a6
[INFO] validating manifest of pczora/rusty_douglas 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 pczora/rusty_douglas 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 pczora/rusty_douglas
[INFO] finished frobbing pczora/rusty_douglas
[INFO] frobbed toml for pczora/rusty_douglas written to work/ex/beta-1.38-1/sources/1.37.0/gh/pczora/rusty_douglas/Cargo.toml
[INFO] started frobbing pczora/rusty_douglas
[INFO] finished frobbing pczora/rusty_douglas
[INFO] frobbed toml for pczora/rusty_douglas written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/pczora/rusty_douglas/Cargo.toml
[INFO] crate pczora/rusty_douglas 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 pczora/rusty_douglas 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/pczora/rusty_douglas:/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] 7c5debe960a15c6ff1e4e6bab7195cf565fdc3480d123db531b64ad12517029d
[INFO] running `"docker" "start" "-a" "7c5debe960a15c6ff1e4e6bab7195cf565fdc3480d123db531b64ad12517029d"`
[INFO] [stderr]    Compiling douglas_peucker v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `d` is never read
[INFO] [stderr]   --> src/main.rs:24:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |     let mut d = 0.0;
[INFO] [stderr]    |             ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `"docker" "inspect" "7c5debe960a15c6ff1e4e6bab7195cf565fdc3480d123db531b64ad12517029d"`
[INFO] running `"docker" "rm" "-f" "7c5debe960a15c6ff1e4e6bab7195cf565fdc3480d123db531b64ad12517029d"`
[INFO] [stdout] 7c5debe960a15c6ff1e4e6bab7195cf565fdc3480d123db531b64ad12517029d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/pczora/rusty_douglas:/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] 038097e703206d8037c557a5ee623eb8f572b903e6bdc634f9745455b6ff8c02
[INFO] running `"docker" "start" "-a" "038097e703206d8037c557a5ee623eb8f572b903e6bdc634f9745455b6ff8c02"`
[INFO] [stderr]    Compiling douglas_peucker v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `d` is never read
[INFO] [stderr]   --> src/main.rs:24:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |     let mut d = 0.0;
[INFO] [stderr]    |             ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `"docker" "inspect" "038097e703206d8037c557a5ee623eb8f572b903e6bdc634f9745455b6ff8c02"`
[INFO] running `"docker" "rm" "-f" "038097e703206d8037c557a5ee623eb8f572b903e6bdc634f9745455b6ff8c02"`
[INFO] [stdout] 038097e703206d8037c557a5ee623eb8f572b903e6bdc634f9745455b6ff8c02
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/pczora/rusty_douglas:/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] cda5e4a899eec9e7d5e7fb6fcd813f8c44eaab97a32c2d7688c376a298b88444
[INFO] running `"docker" "start" "-a" "cda5e4a899eec9e7d5e7fb6fcd813f8c44eaab97a32c2d7688c376a298b88444"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/douglas_peucker-70c0ca2b1fb1657a
[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" "cda5e4a899eec9e7d5e7fb6fcd813f8c44eaab97a32c2d7688c376a298b88444"`
[INFO] running `"docker" "rm" "-f" "cda5e4a899eec9e7d5e7fb6fcd813f8c44eaab97a32c2d7688c376a298b88444"`
[INFO] [stdout] cda5e4a899eec9e7d5e7fb6fcd813f8c44eaab97a32c2d7688c376a298b88444