Dec 18 05:06:55.675 INFO checking TrueDoughnut/ProjectEuler against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 05:06:55.675 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-1/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 05:06:56.096 INFO [stdout] 4501876e436b022cb82b65318426ac34c8b80f44d3ef1728f67874db3d3dfd76
Dec 18 05:06:56.098 INFO running `"docker" "start" "-a" "4501876e436b022cb82b65318426ac34c8b80f44d3ef1728f67874db3d3dfd76"`
Dec 18 05:06:58.912 INFO [stderr]     Checking ProjectEuler v0.1.0 (/opt/crater/workdir)
Dec 18 05:06:59.456 INFO [stderr] error[E0106]: missing lifetime specifier
Dec 18 05:06:59.456 INFO [stderr]   --> src/harder_problems/mod.rs:20:40
Dec 18 05:06:59.456 INFO [stderr]    |
Dec 18 05:06:59.456 INFO [stderr] 20 | fn positive_integers(n: BigInt) -> Vec<&BigInt> {
Dec 18 05:06:59.456 INFO [stderr]    |                                        ^ help: consider giving it an explicit bounded or 'static lifetime: `&'static`
Dec 18 05:06:59.456 INFO [stderr]    |
Dec 18 05:06:59.456 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 18 05:06:59.456 INFO [stderr] 
Dec 18 05:06:59.476 INFO [stderr] error[E0106]: missing lifetime specifier
Dec 18 05:06:59.476 INFO [stderr]   --> src/harder_problems/mod.rs:20:40
Dec 18 05:06:59.476 INFO [stderr]    |
Dec 18 05:06:59.476 INFO [stderr] 20 | fn positive_integers(n: BigInt) -> Vec<&BigInt> {
Dec 18 05:06:59.476 INFO [stderr]    |                                        ^ help: consider giving it an explicit bounded or 'static lifetime: `&'static`
Dec 18 05:06:59.476 INFO [stderr]    |
Dec 18 05:06:59.476 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 18 05:06:59.476 INFO [stderr] 
Dec 18 05:06:59.476 INFO [stderr] error: aborting due to previous error
Dec 18 05:06:59.476 INFO [stderr] 
Dec 18 05:06:59.476 INFO [stderr] For more information about this error, try `rustc --explain E0106`.
Dec 18 05:06:59.476 INFO [stderr] error: Could not compile `ProjectEuler`.
Dec 18 05:06:59.477 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 18 05:06:59.480 INFO [stderr] error: aborting due to previous error
Dec 18 05:06:59.480 INFO [stderr] 
Dec 18 05:06:59.480 INFO [stderr] For more information about this error, try `rustc --explain E0106`.
Dec 18 05:06:59.488 INFO [stderr] error: Could not compile `ProjectEuler`.
Dec 18 05:06:59.488 INFO [stderr] 
Dec 18 05:06:59.488 INFO [stderr] To learn more, run the command again with --verbose.
Dec 18 05:07:00.440 INFO running `"docker" "inspect" "4501876e436b022cb82b65318426ac34c8b80f44d3ef1728f67874db3d3dfd76"`
Dec 18 05:07:00.764 INFO running `"docker" "rm" "-f" "4501876e436b022cb82b65318426ac34c8b80f44d3ef1728f67874db3d3dfd76"`
Dec 18 05:07:01.124 INFO [stdout] 4501876e436b022cb82b65318426ac34c8b80f44d3ef1728f67874db3d3dfd76