[INFO] cloning repository https://github.com/OssFate/AdventOfCode18
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/OssFate/AdventOfCode18" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOssFate%2FAdventOfCode18"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOssFate%2FAdventOfCode18'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 27660b3ebeaafde19bfcd2496c4cef3ee86577c7
[INFO] checking OssFate/AdventOfCode18 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOssFate%2FAdventOfCode18" "/workspace/builds/worker-11/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/OssFate/AdventOfCode18 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/OssFate/AdventOfCode18
[INFO] finished tweaking git repo https://github.com/OssFate/AdventOfCode18
[INFO] tweaked toml for git repo https://github.com/OssFate/AdventOfCode18 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/OssFate/AdventOfCode18 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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] f2a3f81412c82088f24e763a506b4838e3ae63aa562d007b81a553c1f4530f5c
[INFO] running `"docker" "start" "-a" "f2a3f81412c82088f24e763a506b4838e3ae63aa562d007b81a553c1f4530f5c"`
[INFO] [stderr]     Checking oss_advent_code_18 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:30:58
[INFO] [stderr]    |
[INFO] [stderr] 30 | fn read_file(path: String) -> Result<Option<String>, Box<Error + 'static>> {
[INFO] [stderr]    |                                                          ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + 'static`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `file`
[INFO] [stderr]   --> src/day/mod.rs:21:22
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn first_problem(file: &String) {
[INFO] [stderr]    |                      ^^^^ help: consider prefixing with an underscore: `_file`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `file`
[INFO] [stderr]   --> src/day/mod.rs:24:23
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn second_problem(file: &String) {
[INFO] [stderr]    |                       ^^^^ help: consider prefixing with an underscore: `_file`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:30:58
[INFO] [stderr]    |
[INFO] [stderr] 30 | fn read_file(path: String) -> Result<Option<String>, Box<Error + 'static>> {
[INFO] [stderr]    |                                                          ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + 'static`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `file`
[INFO] [stderr]   --> src/day/mod.rs:21:22
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn first_problem(file: &String) {
[INFO] [stderr]    |                      ^^^^ help: consider prefixing with an underscore: `_file`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `file`
[INFO] [stderr]   --> src/day/mod.rs:24:23
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn second_problem(file: &String) {
[INFO] [stderr]    |                       ^^^^ help: consider prefixing with an underscore: `_file`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.16s
[INFO] running `"docker" "inspect" "f2a3f81412c82088f24e763a506b4838e3ae63aa562d007b81a553c1f4530f5c"`
[INFO] running `"docker" "rm" "-f" "f2a3f81412c82088f24e763a506b4838e3ae63aa562d007b81a553c1f4530f5c"`
[INFO] [stdout] f2a3f81412c82088f24e763a506b4838e3ae63aa562d007b81a553c1f4530f5c