Dec 19 21:33:52.959 INFO checking TrueDoughnut/ProjectEuler against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 21:33:52.960 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/TrueDoughnut/ProjectEuler:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 21:33:53.488 INFO [stdout] 084a69d8cd81c9008a246234dab264d4e433dfe01c7281b3863421a4d1867cdb
Dec 19 21:33:53.490 INFO running `"docker" "start" "-a" "084a69d8cd81c9008a246234dab264d4e433dfe01c7281b3863421a4d1867cdb"`
Dec 19 21:33:56.495 INFO [stderr]     Checking num-bigint v0.2.1
Dec 19 21:33:58.849 INFO [stderr]     Checking ProjectEuler v0.1.0 (/opt/crater/workdir)
Dec 19 21:33:59.281 INFO [stderr] error[E0106]: missing lifetime specifier
Dec 19 21:33:59.282 INFO [stderr]   --> src/harder_problems/mod.rs:20:40
Dec 19 21:33:59.282 INFO [stderr]    |
Dec 19 21:33:59.282 INFO [stderr] 20 | fn positive_integers(n: BigInt) -> Vec<&BigInt> {
Dec 19 21:33:59.282 INFO [stderr]    |                                        ^ help: consider giving it an explicit bounded or 'static lifetime: `&'static`
Dec 19 21:33:59.283 INFO [stderr]    |
Dec 19 21:33:59.283 INFO [stderr]    = help: this function's return type contains a borrowed value with an elided lifetime, but the lifetime cannot be derived from the arguments
Dec 19 21:33:59.283 INFO [stderr] 
Dec 19 21:33:59.288 INFO [stderr] error: aborting due to previous error
Dec 19 21:33:59.288 INFO [stderr] 
Dec 19 21:33:59.289 INFO [stderr] For more information about this error, try `rustc --explain E0106`.
Dec 19 21:33:59.296 INFO [stderr] error[E0106]: missing lifetime specifier
Dec 19 21:33:59.297 INFO [stderr]   --> src/harder_problems/mod.rs:20:40
Dec 19 21:33:59.297 INFO [stderr]    |
Dec 19 21:33:59.297 INFO [stderr] 20 | fn positive_integers(n: BigInt) -> Vec<&BigInt> {
Dec 19 21:33:59.297 INFO [stderr]    |                                        ^ help: consider giving it an explicit bounded or 'static lifetime: `&'static`
Dec 19 21:33:59.298 INFO [stderr]    |
Dec 19 21:33:59.298 INFO [stderr]    = help: this function's return type contains a borrowed value with an elided lifetime, but the lifetime cannot be derived from the arguments
Dec 19 21:33:59.298 INFO [stderr] 
Dec 19 21:33:59.298 INFO [stderr] error: aborting due to previous error
Dec 19 21:33:59.298 INFO [stderr] 
Dec 19 21:33:59.298 INFO [stderr] For more information about this error, try `rustc --explain E0106`.
Dec 19 21:33:59.299 INFO [stderr] error: Could not compile `ProjectEuler`.
Dec 19 21:33:59.299 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 19 21:33:59.309 INFO [stderr] error: Could not compile `ProjectEuler`.
Dec 19 21:33:59.309 INFO [stderr] 
Dec 19 21:33:59.309 INFO [stderr] To learn more, run the command again with --verbose.
Dec 19 21:34:00.911 INFO running `"docker" "inspect" "084a69d8cd81c9008a246234dab264d4e433dfe01c7281b3863421a4d1867cdb"`
Dec 19 21:34:01.194 INFO running `"docker" "rm" "-f" "084a69d8cd81c9008a246234dab264d4e433dfe01c7281b3863421a4d1867cdb"`
Dec 19 21:34:01.620 INFO [stdout] 084a69d8cd81c9008a246234dab264d4e433dfe01c7281b3863421a4d1867cdb