[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 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-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] bdb3d68380b668497dfd5460c2b2ce4a6fb8b59a70b81c65210eeed58728ca94
[INFO] running `"docker" "start" "-a" "bdb3d68380b668497dfd5460c2b2ce4a6fb8b59a70b81c65210eeed58728ca94"`
[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 1.02s
[INFO] running `"docker" "inspect" "bdb3d68380b668497dfd5460c2b2ce4a6fb8b59a70b81c65210eeed58728ca94"`
[INFO] running `"docker" "rm" "-f" "bdb3d68380b668497dfd5460c2b2ce4a6fb8b59a70b81c65210eeed58728ca94"`
[INFO] [stdout] bdb3d68380b668497dfd5460c2b2ce4a6fb8b59a70b81c65210eeed58728ca94
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 32ee391808b2aaebab31b1fa233d8b984955d852074a7965f297d5715024177a
[INFO] running `"docker" "start" "-a" "32ee391808b2aaebab31b1fa233d8b984955d852074a7965f297d5715024177a"`
[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 0.68s
[INFO] running `"docker" "inspect" "32ee391808b2aaebab31b1fa233d8b984955d852074a7965f297d5715024177a"`
[INFO] running `"docker" "rm" "-f" "32ee391808b2aaebab31b1fa233d8b984955d852074a7965f297d5715024177a"`
[INFO] [stdout] 32ee391808b2aaebab31b1fa233d8b984955d852074a7965f297d5715024177a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] b37423052c16a8f99687105db0a4ade4114fd5ca23c458fe56661fc8f4038903
[INFO] running `"docker" "start" "-a" "b37423052c16a8f99687105db0a4ade4114fd5ca23c458fe56661fc8f4038903"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/douglas_peucker-a80c8f7b97dffa9e
[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" "b37423052c16a8f99687105db0a4ade4114fd5ca23c458fe56661fc8f4038903"`
[INFO] running `"docker" "rm" "-f" "b37423052c16a8f99687105db0a4ade4114fd5ca23c458fe56661fc8f4038903"`
[INFO] [stdout] b37423052c16a8f99687105db0a4ade4114fd5ca23c458fe56661fc8f4038903