[INFO] updating cached repository ELD/Advent-Of-Code-2015
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ELD/Advent-Of-Code-2015
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ELD/Advent-Of-Code-2015" "work/ex/beta-1.38-1/sources/1.37.0/gh/ELD/Advent-Of-Code-2015"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/ELD/Advent-Of-Code-2015'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ELD/Advent-Of-Code-2015" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ELD/Advent-Of-Code-2015"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ELD/Advent-Of-Code-2015'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ee9222711c9413a3342baeb0e59cba5028660b41
[INFO] sha for GitHub repo ELD/Advent-Of-Code-2015: ee9222711c9413a3342baeb0e59cba5028660b41
[INFO] validating manifest of ELD/Advent-Of-Code-2015 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ELD/Advent-Of-Code-2015 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ELD/Advent-Of-Code-2015
[INFO] finished frobbing ELD/Advent-Of-Code-2015
[INFO] frobbed toml for ELD/Advent-Of-Code-2015 written to work/ex/beta-1.38-1/sources/1.37.0/gh/ELD/Advent-Of-Code-2015/Cargo.toml
[INFO] started frobbing ELD/Advent-Of-Code-2015
[INFO] finished frobbing ELD/Advent-Of-Code-2015
[INFO] frobbed toml for ELD/Advent-Of-Code-2015 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ELD/Advent-Of-Code-2015/Cargo.toml
[INFO] crate ELD/Advent-Of-Code-2015 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ELD/Advent-Of-Code-2015/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing ELD/Advent-Of-Code-2015 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ELD/Advent-Of-Code-2015:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 452df7df7b5256d782524bea3b71722aa9861d1dba4ecf8df6d11bf67ae1c744
[INFO] running `"docker" "start" "-a" "452df7df7b5256d782524bea3b71722aa9861d1dba4ecf8df6d11bf67ae1c744"`
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling advent_of_code v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/day1.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     file.read_to_string(&mut buffer);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.18s
[INFO] running `"docker" "inspect" "452df7df7b5256d782524bea3b71722aa9861d1dba4ecf8df6d11bf67ae1c744"`
[INFO] running `"docker" "rm" "-f" "452df7df7b5256d782524bea3b71722aa9861d1dba4ecf8df6d11bf67ae1c744"`
[INFO] [stdout] 452df7df7b5256d782524bea3b71722aa9861d1dba4ecf8df6d11bf67ae1c744
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ELD/Advent-Of-Code-2015:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 5d0cb100ddeac5809214f655155fb8103c46922b485b2fd64b65ebffbe48ad14
[INFO] running `"docker" "start" "-a" "5d0cb100ddeac5809214f655155fb8103c46922b485b2fd64b65ebffbe48ad14"`
[INFO] [stderr]    Compiling advent_of_code v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/day1.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     file.read_to_string(&mut buffer);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `"docker" "inspect" "5d0cb100ddeac5809214f655155fb8103c46922b485b2fd64b65ebffbe48ad14"`
[INFO] running `"docker" "rm" "-f" "5d0cb100ddeac5809214f655155fb8103c46922b485b2fd64b65ebffbe48ad14"`
[INFO] [stdout] 5d0cb100ddeac5809214f655155fb8103c46922b485b2fd64b65ebffbe48ad14
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ELD/Advent-Of-Code-2015:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] c7253e91a0842cee110f9c06ceaf5c3a73e0bf737349759deccc74ac21603f37
[INFO] running `"docker" "start" "-a" "c7253e91a0842cee110f9c06ceaf5c3a73e0bf737349759deccc74ac21603f37"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/advent_of_code-67d3b8885ca9b221
[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/advent_of_code-151d91e79ad30823
[INFO] [stderr]    Doc-tests advent_of_code
[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] [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" "c7253e91a0842cee110f9c06ceaf5c3a73e0bf737349759deccc74ac21603f37"`
[INFO] running `"docker" "rm" "-f" "c7253e91a0842cee110f9c06ceaf5c3a73e0bf737349759deccc74ac21603f37"`
[INFO] [stdout] c7253e91a0842cee110f9c06ceaf5c3a73e0bf737349759deccc74ac21603f37