[INFO] updating cached repository kpcyrd/defcon26-pow [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/kpcyrd/defcon26-pow [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/kpcyrd/defcon26-pow" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/kpcyrd/defcon26-pow"` [INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/kpcyrd/defcon26-pow'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/kpcyrd/defcon26-pow" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/kpcyrd/defcon26-pow"` [INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/kpcyrd/defcon26-pow'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] d17edcaf67cb2a8455e7797f3a373b9c250a3cee [INFO] sha for GitHub repo kpcyrd/defcon26-pow: d17edcaf67cb2a8455e7797f3a373b9c250a3cee [INFO] validating manifest of kpcyrd/defcon26-pow 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 kpcyrd/defcon26-pow 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 kpcyrd/defcon26-pow [INFO] finished frobbing kpcyrd/defcon26-pow [INFO] frobbed toml for kpcyrd/defcon26-pow written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/kpcyrd/defcon26-pow/Cargo.toml [INFO] started frobbing kpcyrd/defcon26-pow [INFO] finished frobbing kpcyrd/defcon26-pow [INFO] frobbed toml for kpcyrd/defcon26-pow written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/kpcyrd/defcon26-pow/Cargo.toml [INFO] crate kpcyrd/defcon26-pow 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 kpcyrd/defcon26-pow against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-0/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/kpcyrd/defcon26-pow:/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] c9b00f3442c68a9111f48b203adbaab748b4573849728133bd199cf9441ab182 [INFO] running `"docker" "start" "-a" "c9b00f3442c68a9111f48b203adbaab748b4573849728133bd199cf9441ab182"` [INFO] [stderr] Checking num-integer v0.1.38 [INFO] [stderr] Checking num-bigint v0.1.43 [INFO] [stderr] Checking defcon26-pow v0.1.1 (/opt/crater/workdir) [INFO] [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used [INFO] [stderr] --> src/main.rs:82:5 [INFO] [stderr] | [INFO] [stderr] 82 | / children.into_iter() [INFO] [stderr] 83 | | .map(|c| c.join().unwrap()) [INFO] [stderr] 84 | | .collect::>(); [INFO] [stderr] | |_____________________________^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used [INFO] [stderr] --> src/main.rs:82:5 [INFO] [stderr] | [INFO] [stderr] 82 | / children.into_iter() [INFO] [stderr] 83 | | .map(|c| c.join().unwrap()) [INFO] [stderr] 84 | | .collect::>(); [INFO] [stderr] | |_____________________________^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.30s [INFO] running `"docker" "inspect" "c9b00f3442c68a9111f48b203adbaab748b4573849728133bd199cf9441ab182"` [INFO] running `"docker" "rm" "-f" "c9b00f3442c68a9111f48b203adbaab748b4573849728133bd199cf9441ab182"` [INFO] [stdout] c9b00f3442c68a9111f48b203adbaab748b4573849728133bd199cf9441ab182