[INFO] updating cached repository phreaknik/polo-scraper
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/phreaknik/polo-scraper
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/phreaknik/polo-scraper" "work/ex/beta-1.37-6/sources/1.36.0/gh/phreaknik/polo-scraper"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/phreaknik/polo-scraper'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/phreaknik/polo-scraper" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/phreaknik/polo-scraper"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/phreaknik/polo-scraper'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d62a092f0563aaf8156411807dc8d46b2601a86c
[INFO] sha for GitHub repo phreaknik/polo-scraper: d62a092f0563aaf8156411807dc8d46b2601a86c
[INFO] validating manifest of phreaknik/polo-scraper 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 phreaknik/polo-scraper 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 phreaknik/polo-scraper
[INFO] finished frobbing phreaknik/polo-scraper
[INFO] frobbed toml for phreaknik/polo-scraper written to work/ex/beta-1.37-6/sources/1.36.0/gh/phreaknik/polo-scraper/Cargo.toml
[INFO] started frobbing phreaknik/polo-scraper
[INFO] finished frobbing phreaknik/polo-scraper
[INFO] frobbed toml for phreaknik/polo-scraper written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/phreaknik/polo-scraper/Cargo.toml
[INFO] crate phreaknik/polo-scraper already has a lockfile, it will not be regenerated
[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 phreaknik/polo-scraper 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-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/phreaknik/polo-scraper:/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] 3aea8e50c54f47453b6037a5f7d3505a880c9c92ad5278e7cd68c97d7cb2bf66
[INFO] running `"docker" "start" "-a" "3aea8e50c54f47453b6037a5f7d3505a880c9c92ad5278e7cd68c97d7cb2bf66"`
[INFO] [stderr]    Compiling untrusted v0.3.2
[INFO] [stderr]    Compiling vec_map v0.7.0
[INFO] [stderr]    Compiling bitflags v0.8.2
[INFO] [stderr]    Compiling serde v0.9.12
[INFO] [stderr]    Compiling deque v0.3.1
[INFO] [stderr]    Compiling hyper v0.10.5
[INFO] [stderr]    Compiling idna v0.1.0
[INFO] [stderr]    Compiling rayon v0.6.0
[INFO] [stderr]    Compiling clap v2.22.2
[INFO] [stderr]    Compiling url v1.4.0
[INFO] [stderr]    Compiling ring v0.7.3
[INFO] [stderr] warning[E0713]: borrow may still be in use when destructor runs
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/url-1.4.0/src/form_urlencoded.rs:246:40
[INFO] [stderr]     |
[INFO] [stderr] 244 | impl<'a> Target for ::UrlQuery<'a> {
[INFO] [stderr]     |      -- lifetime `'a` defined here
[INFO] [stderr] 245 |     fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization }
[INFO] [stderr] 246 |     fn finish(self) -> &'a mut ::Url { self.url }
[INFO] [stderr]     |                                        ^^^^^^^^ - here, drop of `self` needs exclusive access to `*self.url`, because the type `UrlQuery<'_>` implements the `Drop` trait
[INFO] [stderr]     |                                        |
[INFO] [stderr]     |                                        returning this value requires that `*self.url` is borrowed for `'a`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]     = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr]     = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr]    Compiling serde_json v0.9.9
[INFO] [stderr]    Compiling webpki v0.10.0
[INFO] [stderr]    Compiling webpki-roots v0.7.0
[INFO] [stderr]    Compiling rustls v0.5.8
[INFO] [stderr]    Compiling hyper-rustls v0.3.2
[INFO] [stderr]    Compiling polo-scraper v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 15s
[INFO] running `"docker" "inspect" "3aea8e50c54f47453b6037a5f7d3505a880c9c92ad5278e7cd68c97d7cb2bf66"`
[INFO] running `"docker" "rm" "-f" "3aea8e50c54f47453b6037a5f7d3505a880c9c92ad5278e7cd68c97d7cb2bf66"`
[INFO] [stdout] 3aea8e50c54f47453b6037a5f7d3505a880c9c92ad5278e7cd68c97d7cb2bf66
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/phreaknik/polo-scraper:/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] 190b56926ffbec346ad2b2479d71318fdfa15048bd8ab2972e7d30ac01327f55
[INFO] running `"docker" "start" "-a" "190b56926ffbec346ad2b2479d71318fdfa15048bd8ab2972e7d30ac01327f55"`
[INFO] [stderr]    Compiling polo-scraper v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `"docker" "inspect" "190b56926ffbec346ad2b2479d71318fdfa15048bd8ab2972e7d30ac01327f55"`
[INFO] running `"docker" "rm" "-f" "190b56926ffbec346ad2b2479d71318fdfa15048bd8ab2972e7d30ac01327f55"`
[INFO] [stdout] 190b56926ffbec346ad2b2479d71318fdfa15048bd8ab2972e7d30ac01327f55
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/phreaknik/polo-scraper:/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] 86f598230e12972d05b3b6e45b0d1dbf8450d038f1c349280c6c568ebef3e537
[INFO] running `"docker" "start" "-a" "86f598230e12972d05b3b6e45b0d1dbf8450d038f1c349280c6c568ebef3e537"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/polo_scraper-cadf07bd65f7ec96
[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" "86f598230e12972d05b3b6e45b0d1dbf8450d038f1c349280c6c568ebef3e537"`
[INFO] running `"docker" "rm" "-f" "86f598230e12972d05b3b6e45b0d1dbf8450d038f1c349280c6c568ebef3e537"`
[INFO] [stdout] 86f598230e12972d05b3b6e45b0d1dbf8450d038f1c349280c6c568ebef3e537