[INFO] updating cached repository brimatteng/Learn-Rust---Hacker-News-Scraper
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/brimatteng/Learn-Rust---Hacker-News-Scraper
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/brimatteng/Learn-Rust---Hacker-News-Scraper" "work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/brimatteng/Learn-Rust---Hacker-News-Scraper"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/brimatteng/Learn-Rust---Hacker-News-Scraper'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/brimatteng/Learn-Rust---Hacker-News-Scraper" "work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/brimatteng/Learn-Rust---Hacker-News-Scraper"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/brimatteng/Learn-Rust---Hacker-News-Scraper'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fabc7e90997d7f4871ab9c02b4b67ea0e8bf9a2a
[INFO] sha for GitHub repo brimatteng/Learn-Rust---Hacker-News-Scraper: fabc7e90997d7f4871ab9c02b4b67ea0e8bf9a2a
[INFO] validating manifest of brimatteng/Learn-Rust---Hacker-News-Scraper on toolchain master#39401465da4ce27aeeb2c2a26133ac35c63aa515
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of brimatteng/Learn-Rust---Hacker-News-Scraper on toolchain try#f45cc3094ee337acd688771b9234318046b0572d
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing brimatteng/Learn-Rust---Hacker-News-Scraper
[INFO] finished frobbing brimatteng/Learn-Rust---Hacker-News-Scraper
[INFO] frobbed toml for brimatteng/Learn-Rust---Hacker-News-Scraper written to work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/brimatteng/Learn-Rust---Hacker-News-Scraper/Cargo.toml
[INFO] started frobbing brimatteng/Learn-Rust---Hacker-News-Scraper
[INFO] finished frobbing brimatteng/Learn-Rust---Hacker-News-Scraper
[INFO] frobbed toml for brimatteng/Learn-Rust---Hacker-News-Scraper written to work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/brimatteng/Learn-Rust---Hacker-News-Scraper/Cargo.toml
[INFO] crate brimatteng/Learn-Rust---Hacker-News-Scraper already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking brimatteng/Learn-Rust---Hacker-News-Scraper against master#39401465da4ce27aeeb2c2a26133ac35c63aa515 for pr-60914
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60914/worker-5/master#39401465da4ce27aeeb2c2a26133ac35c63aa515:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/brimatteng/Learn-Rust---Hacker-News-Scraper:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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=forbid" "-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" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 0674d65699e5a29558da58d08c0143c98193937124d9bdcdf7c0dc6668678946
[INFO] running `"docker" "start" "-a" "0674d65699e5a29558da58d08c0143c98193937124d9bdcdf7c0dc6668678946"`
[INFO] [stderr]     Checking libflate v0.1.8
[INFO] [stderr]    Compiling string_cache_codegen v0.3.1
[INFO] [stderr]     Checking url v1.5.0
[INFO] [stderr]    Compiling html5ever v0.14.1
[INFO] [stderr]    Compiling string_cache v0.4.0
[INFO] [stderr]    Compiling html5ever-atoms v0.2.2
[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-1.5.0/src/form_urlencoded.rs:251:40
[INFO] [stderr]     |
[INFO] [stderr] 249 | impl<'a> Target for ::UrlQuery<'a> {
[INFO] [stderr]     |      -- lifetime `'a` defined here
[INFO] [stderr] 250 |     fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization }
[INFO] [stderr] 251 |     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] 
[INFO] [stderr]     Checking hyper v0.10.12
[INFO] [stderr]     Checking serde_urlencoded v0.5.1
[INFO] [stderr]     Checking hyper-native-tls v0.2.4
[INFO] [stderr]     Checking reqwest v0.6.2
[INFO] [stderr]     Checking select v0.4.0
[INFO] [stderr]     Checking hacker-news-reader v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     resp.read_to_string(&mut content);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     resp.read_to_string(&mut content);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.43s
[INFO] running `"docker" "inspect" "0674d65699e5a29558da58d08c0143c98193937124d9bdcdf7c0dc6668678946"`
[INFO] running `"docker" "rm" "-f" "0674d65699e5a29558da58d08c0143c98193937124d9bdcdf7c0dc6668678946"`
[INFO] [stdout] 0674d65699e5a29558da58d08c0143c98193937124d9bdcdf7c0dc6668678946