[INFO] updating cached repository https://github.com/D-Raiser/adventOfCode2019
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5f9bb63482a2e31729aee7d95a6183dfadf6f937
[INFO] checking D-Raiser/adventOfCode2019 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FD-Raiser%2FadventOfCode2019" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/D-Raiser/adventOfCode2019 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/D-Raiser/adventOfCode2019
[INFO] finished tweaking git repo https://github.com/D-Raiser/adventOfCode2019
[INFO] tweaked toml for git repo https://github.com/D-Raiser/adventOfCode2019 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/D-Raiser/adventOfCode2019 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5ab052d148390de75848180f22911faf2ed0635aa9aa9a8ecab66e481ac43c13
[INFO] running `"docker" "start" "-a" "5ab052d148390de75848180f22911faf2ed0635aa9aa9a8ecab66e481ac43c13"`
[INFO] [stderr]     Checking adventOfCode2019 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::fs`
[INFO] [stderr]  --> src/day01_1/mod.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fs;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs`
[INFO] [stderr]  --> src/day01_1/mod.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fs;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0515]: cannot return value referencing local variable `file`
[INFO] [stderr]   --> src/main.rs:13:12
[INFO] [stderr]    |
[INFO] [stderr] 13 |     return file.as_str();
[INFO] [stderr]    |            ----^^^^^^^^^
[INFO] [stderr]    |            |
[INFO] [stderr]    |            returns a value referencing data owned by the current function
[INFO] [stderr]    |            `file` is borrowed here
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0515`.
[INFO] [stderr] error[E0515]: cannot return value referencing local variable `file`
[INFO] [stderr]   --> src/main.rs:13:12
[INFO] [stderr]    |
[INFO] [stderr] 13 |     return file.as_str();
[INFO] [stderr]    |            ----^^^^^^^^^
[INFO] [stderr]    |            |
[INFO] [stderr]    |            returns a value referencing data owned by the current function
[INFO] [stderr]    |            `file` is borrowed here
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0515`.
[INFO] [stderr] error: could not compile `adventOfCode2019`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `adventOfCode2019`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "5ab052d148390de75848180f22911faf2ed0635aa9aa9a8ecab66e481ac43c13"`
[INFO] running `"docker" "rm" "-f" "5ab052d148390de75848180f22911faf2ed0635aa9aa9a8ecab66e481ac43c13"`
[INFO] [stdout] 5ab052d148390de75848180f22911faf2ed0635aa9aa9a8ecab66e481ac43c13