[INFO] crate polylabel-mini 0.1.0 is already in cache
[INFO] extracting crate polylabel-mini 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/polylabel-mini/0.1.0
[INFO] extracting crate polylabel-mini 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/polylabel-mini/0.1.0
[INFO] validating manifest of polylabel-mini-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 polylabel-mini-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 polylabel-mini-0.1.0
[INFO] finished frobbing polylabel-mini-0.1.0
[INFO] frobbed toml for polylabel-mini-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/polylabel-mini/0.1.0/Cargo.toml
[INFO] started frobbing polylabel-mini-0.1.0
[INFO] finished frobbing polylabel-mini-0.1.0
[INFO] frobbed toml for polylabel-mini-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/polylabel-mini/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] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing polylabel-mini-0.1.0 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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/polylabel-mini/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 92fe0a1a3854a59b749c8851b3dd4a3ff0335eb9210e65dd3b5d4cb012c7a0d1
[INFO] running `"docker" "start" "-a" "92fe0a1a3854a59b749c8851b3dd4a3ff0335eb9210e65dd3b5d4cb012c7a0d1"`
[INFO] [stderr]    Compiling polylabel-mini v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:418:13
[INFO] [stderr]     |
[INFO] [stderr] 418 |         let mut new_dist = signed_distance(combo.0, combo.1, polygon);
[INFO] [stderr]     |             ----^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `"docker" "inspect" "92fe0a1a3854a59b749c8851b3dd4a3ff0335eb9210e65dd3b5d4cb012c7a0d1"`
[INFO] running `"docker" "rm" "-f" "92fe0a1a3854a59b749c8851b3dd4a3ff0335eb9210e65dd3b5d4cb012c7a0d1"`
[INFO] [stdout] 92fe0a1a3854a59b749c8851b3dd4a3ff0335eb9210e65dd3b5d4cb012c7a0d1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/polylabel-mini/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] c75b1856907575f02c23353ad6e1d633f7da07d1c49c730f8f6876c821d7de51
[INFO] running `"docker" "start" "-a" "c75b1856907575f02c23353ad6e1d633f7da07d1c49c730f8f6876c821d7de51"`
[INFO] [stderr]    Compiling polylabel-mini v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:418:13
[INFO] [stderr]     |
[INFO] [stderr] 418 |         let mut new_dist = signed_distance(combo.0, combo.1, polygon);
[INFO] [stderr]     |             ----^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `"docker" "inspect" "c75b1856907575f02c23353ad6e1d633f7da07d1c49c730f8f6876c821d7de51"`
[INFO] running `"docker" "rm" "-f" "c75b1856907575f02c23353ad6e1d633f7da07d1c49c730f8f6876c821d7de51"`
[INFO] [stdout] c75b1856907575f02c23353ad6e1d633f7da07d1c49c730f8f6876c821d7de51
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/polylabel-mini/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 24cfe2c4628241d52e1198cef0b7556f16082484941b3bd2d6abbe8ad745ff65
[INFO] running `"docker" "start" "-a" "24cfe2c4628241d52e1198cef0b7556f16082484941b3bd2d6abbe8ad745ff65"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/polylabel_mini-e9f2239d53697c04
[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] [stderr]    Doc-tests polylabel-mini
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - polylabel (line 435) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - polylabel (line 435) stdout ----
[INFO] [stdout] error[E0463]: can't find crate for `geo`
[INFO] [stdout]  --> src/lib.rs:437:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | extern crate geo;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - polylabel (line 435)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `"docker" "inspect" "24cfe2c4628241d52e1198cef0b7556f16082484941b3bd2d6abbe8ad745ff65"`
[INFO] running `"docker" "rm" "-f" "24cfe2c4628241d52e1198cef0b7556f16082484941b3bd2d6abbe8ad745ff65"`
[INFO] [stdout] 24cfe2c4628241d52e1198cef0b7556f16082484941b3bd2d6abbe8ad745ff65