[INFO] updating cached repository SamSmith7/aoc2018
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/SamSmith7/aoc2018
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/SamSmith7/aoc2018" "work/ex/beta-1.37-6/sources/1.36.0/gh/SamSmith7/aoc2018"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/SamSmith7/aoc2018'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/SamSmith7/aoc2018" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/SamSmith7/aoc2018"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/SamSmith7/aoc2018'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f79752af8949a41b7e1c6a77d7ee871e9391dc30
[INFO] sha for GitHub repo SamSmith7/aoc2018: f79752af8949a41b7e1c6a77d7ee871e9391dc30
[INFO] validating manifest of SamSmith7/aoc2018 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of SamSmith7/aoc2018 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing SamSmith7/aoc2018
[INFO] finished frobbing SamSmith7/aoc2018
[INFO] frobbed toml for SamSmith7/aoc2018 written to work/ex/beta-1.37-6/sources/1.36.0/gh/SamSmith7/aoc2018/Cargo.toml
[INFO] started frobbing SamSmith7/aoc2018
[INFO] finished frobbing SamSmith7/aoc2018
[INFO] frobbed toml for SamSmith7/aoc2018 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/SamSmith7/aoc2018/Cargo.toml
[INFO] crate SamSmith7/aoc2018 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing SamSmith7/aoc2018 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/SamSmith7/aoc2018:/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=warn" "-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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] d40fef16db42874cef509b54365050956519efaad160d4affafb4bd7e4f313f0
[INFO] running `"docker" "start" "-a" "d40fef16db42874cef509b54365050956519efaad160d4affafb4bd7e4f313f0"`
[INFO] [stderr]    Compiling aoc2018 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/day1/mod.rs:23:21
[INFO] [stderr]    |
[INFO] [stderr] 23 |                 Err(e) => 0
[INFO] [stderr]    |                     ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/day2/mod.rs:42:18
[INFO] [stderr]    |
[INFO] [stderr] 42 |             for (key, val) in letters.iter() {
[INFO] [stderr]    |                  ^^^ help: consider prefixing with an underscore: `_key`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.74s
[INFO] running `"docker" "inspect" "d40fef16db42874cef509b54365050956519efaad160d4affafb4bd7e4f313f0"`
[INFO] running `"docker" "rm" "-f" "d40fef16db42874cef509b54365050956519efaad160d4affafb4bd7e4f313f0"`
[INFO] [stdout] d40fef16db42874cef509b54365050956519efaad160d4affafb4bd7e4f313f0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/SamSmith7/aoc2018:/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 3257b9bde4095a58165ba601e822c9445f52d8a2031c6490bdd6bfeaaff87814
[INFO] running `"docker" "start" "-a" "3257b9bde4095a58165ba601e822c9445f52d8a2031c6490bdd6bfeaaff87814"`
[INFO] [stderr]    Compiling aoc2018 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/day1/mod.rs:23:21
[INFO] [stderr]    |
[INFO] [stderr] 23 |                 Err(e) => 0
[INFO] [stderr]    |                     ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/day2/mod.rs:42:18
[INFO] [stderr]    |
[INFO] [stderr] 42 |             for (key, val) in letters.iter() {
[INFO] [stderr]    |                  ^^^ help: consider prefixing with an underscore: `_key`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.67s
[INFO] running `"docker" "inspect" "3257b9bde4095a58165ba601e822c9445f52d8a2031c6490bdd6bfeaaff87814"`
[INFO] running `"docker" "rm" "-f" "3257b9bde4095a58165ba601e822c9445f52d8a2031c6490bdd6bfeaaff87814"`
[INFO] [stdout] 3257b9bde4095a58165ba601e822c9445f52d8a2031c6490bdd6bfeaaff87814
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/SamSmith7/aoc2018:/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 0b31bddca2e8d737fbf651f3784c0eb3284c082e3ed807e61fc01dd1b63cd15f
[INFO] running `"docker" "start" "-a" "0b31bddca2e8d737fbf651f3784c0eb3284c082e3ed807e61fc01dd1b63cd15f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/aoc2018-d2a031088721bd6f
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/main-db0e987083069471
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests aoc2018
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "0b31bddca2e8d737fbf651f3784c0eb3284c082e3ed807e61fc01dd1b63cd15f"`
[INFO] running `"docker" "rm" "-f" "0b31bddca2e8d737fbf651f3784c0eb3284c082e3ed807e61fc01dd1b63cd15f"`
[INFO] [stdout] 0b31bddca2e8d737fbf651f3784c0eb3284c082e3ed807e61fc01dd1b63cd15f