[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-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/brimatteng/Learn-Rust---Hacker-News-Scraper"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/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-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/brimatteng/Learn-Rust---Hacker-News-Scraper"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/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#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of brimatteng/Learn-Rust---Hacker-News-Scraper on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-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-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/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-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/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/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking brimatteng/Learn-Rust---Hacker-News-Scraper against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-2/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/brimatteng/Learn-Rust---Hacker-News-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=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" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ba2d2096c1016e74cf803d9745675b68f7769b663a3bcd993a57cf105f065ac8
[INFO] running `"docker" "start" "-a" "ba2d2096c1016e74cf803d9745675b68f7769b663a3bcd993a57cf105f065ac8"`
[INFO] [stderr]     Checking utf-8 v0.6.0
[INFO] [stderr]     Checking colored v1.5.1
[INFO] [stderr]    Compiling string_cache_codegen v0.3.1
[INFO] [stderr]    Compiling html5ever v0.14.1
[INFO] [stderr]     Checking hyper v0.10.12
[INFO] [stderr]     Checking tendril v0.2.4
[INFO] [stderr]    Compiling string_cache v0.4.0
[INFO] [stderr]    Compiling html5ever-atoms v0.2.2
[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 21.82s
[INFO] running `"docker" "inspect" "ba2d2096c1016e74cf803d9745675b68f7769b663a3bcd993a57cf105f065ac8"`
[INFO] running `"docker" "rm" "-f" "ba2d2096c1016e74cf803d9745675b68f7769b663a3bcd993a57cf105f065ac8"`
[INFO] [stdout] ba2d2096c1016e74cf803d9745675b68f7769b663a3bcd993a57cf105f065ac8