[INFO] updating cached repository OssFate/AdventOfCode18
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/OssFate/AdventOfCode18
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/OssFate/AdventOfCode18" "work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/OssFate/AdventOfCode18"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/OssFate/AdventOfCode18'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/OssFate/AdventOfCode18" "work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/OssFate/AdventOfCode18"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/OssFate/AdventOfCode18'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 27660b3ebeaafde19bfcd2496c4cef3ee86577c7
[INFO] sha for GitHub repo OssFate/AdventOfCode18: 27660b3ebeaafde19bfcd2496c4cef3ee86577c7
[INFO] validating manifest of OssFate/AdventOfCode18 on toolchain master#6ea4036cd20a4b1ab1d56e555108c21735ff6946
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of OssFate/AdventOfCode18 on toolchain try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing OssFate/AdventOfCode18
[INFO] finished frobbing OssFate/AdventOfCode18
[INFO] frobbed toml for OssFate/AdventOfCode18 written to work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/OssFate/AdventOfCode18/Cargo.toml
[INFO] started frobbing OssFate/AdventOfCode18
[INFO] finished frobbing OssFate/AdventOfCode18
[INFO] frobbed toml for OssFate/AdventOfCode18 written to work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/OssFate/AdventOfCode18/Cargo.toml
[INFO] crate OssFate/AdventOfCode18 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking OssFate/AdventOfCode18 against try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc for pr-62181
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62181/worker-2/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/OssFate/AdventOfCode18:/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" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 871914ba2c9acd63cbd218279d22e91fd808e9b4a2db38df49ea338db7fb224e
[INFO] running `"docker" "start" "-a" "871914ba2c9acd63cbd218279d22e91fd808e9b4a2db38df49ea338db7fb224e"`
[INFO] [stderr]     Checking oss_advent_code_18 v0.1.0 (/opt/crater/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: 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: 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 2.37s
[INFO] running `"docker" "inspect" "871914ba2c9acd63cbd218279d22e91fd808e9b4a2db38df49ea338db7fb224e"`
[INFO] running `"docker" "rm" "-f" "871914ba2c9acd63cbd218279d22e91fd808e9b4a2db38df49ea338db7fb224e"`
[INFO] [stdout] 871914ba2c9acd63cbd218279d22e91fd808e9b4a2db38df49ea338db7fb224e