[INFO] updating cached repository nrstepanek/advent-of-code-2018-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nrstepanek/advent-of-code-2018-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nrstepanek/advent-of-code-2018-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/nrstepanek/advent-of-code-2018-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/nrstepanek/advent-of-code-2018-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nrstepanek/advent-of-code-2018-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nrstepanek/advent-of-code-2018-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nrstepanek/advent-of-code-2018-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4fde8f4cbfbbe1113ef597dafa8387ff82eb9b8b
[INFO] sha for GitHub repo nrstepanek/advent-of-code-2018-rust: 4fde8f4cbfbbe1113ef597dafa8387ff82eb9b8b
[INFO] validating manifest of nrstepanek/advent-of-code-2018-rust 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 nrstepanek/advent-of-code-2018-rust 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 nrstepanek/advent-of-code-2018-rust
[INFO] finished frobbing nrstepanek/advent-of-code-2018-rust
[INFO] frobbed toml for nrstepanek/advent-of-code-2018-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/nrstepanek/advent-of-code-2018-rust/Cargo.toml
[INFO] started frobbing nrstepanek/advent-of-code-2018-rust
[INFO] finished frobbing nrstepanek/advent-of-code-2018-rust
[INFO] frobbed toml for nrstepanek/advent-of-code-2018-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nrstepanek/advent-of-code-2018-rust/Cargo.toml
[INFO] crate nrstepanek/advent-of-code-2018-rust 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing nrstepanek/advent-of-code-2018-rust against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/nrstepanek/advent-of-code-2018-rust:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] f377a52825d898e4dc0404c9b6b22e872020d86b2aeb5344dee1112ffaf29a8a
[INFO] running `"docker" "start" "-a" "f377a52825d898e4dc0404c9b6b22e872020d86b2aeb5344dee1112ffaf29a8a"`
[INFO] [stderr]    Compiling advent-of-code-2018 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `calculate_frequency`
[INFO] [stderr]  --> src/frequency.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | fn calculate_frequency(input: &String) -> i32 {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_duplicate_frequency`
[INFO] [stderr]   --> src/frequency.rs:24:1
[INFO] [stderr]    |
[INFO] [stderr] 24 | fn find_duplicate_frequency(input: &String) -> Option<i32> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `main`
[INFO] [stderr]   --> src/frequency.rs:55:1
[INFO] [stderr]    |
[INFO] [stderr] 55 | pub fn main() {
[INFO] [stderr]    | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_boxids_checksum`
[INFO] [stderr]  --> src/boxids.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | fn get_boxids_checksum(input: &String) -> i32 {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_common_chars`
[INFO] [stderr]   --> src/boxids.rs:36:1
[INFO] [stderr]    |
[INFO] [stderr] 36 | fn find_common_chars(input: &String) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `main`
[INFO] [stderr]   --> src/boxids.rs:71:1
[INFO] [stderr]    |
[INFO] [stderr] 71 | pub fn main() {
[INFO] [stderr]    | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `differentChars` should have a snake case name
[INFO] [stderr]   --> src/boxids.rs:48:21
[INFO] [stderr]    |
[INFO] [stderr] 48 |             let mut differentChars: i32 = 0;
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `different_chars`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.32s
[INFO] running `"docker" "inspect" "f377a52825d898e4dc0404c9b6b22e872020d86b2aeb5344dee1112ffaf29a8a"`
[INFO] running `"docker" "rm" "-f" "f377a52825d898e4dc0404c9b6b22e872020d86b2aeb5344dee1112ffaf29a8a"`
[INFO] [stdout] f377a52825d898e4dc0404c9b6b22e872020d86b2aeb5344dee1112ffaf29a8a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/nrstepanek/advent-of-code-2018-rust:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 092263d5b02364f45c0078fbc26c3addda60bb43cd3453b06b68c38a76499536
[INFO] running `"docker" "start" "-a" "092263d5b02364f45c0078fbc26c3addda60bb43cd3453b06b68c38a76499536"`
[INFO] [stderr]    Compiling advent-of-code-2018 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `main`
[INFO] [stderr]   --> src/frequency.rs:55:1
[INFO] [stderr]    |
[INFO] [stderr] 55 | pub fn main() {
[INFO] [stderr]    | ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `main`
[INFO] [stderr]   --> src/boxids.rs:71:1
[INFO] [stderr]    |
[INFO] [stderr] 71 | pub fn main() {
[INFO] [stderr]    | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `differentChars` should have a snake case name
[INFO] [stderr]   --> src/boxids.rs:48:21
[INFO] [stderr]    |
[INFO] [stderr] 48 |             let mut differentChars: i32 = 0;
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `different_chars`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.46s
[INFO] running `"docker" "inspect" "092263d5b02364f45c0078fbc26c3addda60bb43cd3453b06b68c38a76499536"`
[INFO] running `"docker" "rm" "-f" "092263d5b02364f45c0078fbc26c3addda60bb43cd3453b06b68c38a76499536"`
[INFO] [stdout] 092263d5b02364f45c0078fbc26c3addda60bb43cd3453b06b68c38a76499536
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/nrstepanek/advent-of-code-2018-rust:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 8658c53fad19f0fa71dfd37f3280e019d85df85258f092ae04f7b7e7c593de50
[INFO] running `"docker" "start" "-a" "8658c53fad19f0fa71dfd37f3280e019d85df85258f092ae04f7b7e7c593de50"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/advent_of_code_2018-d0a2fbf39a61990a
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test boxids::tests::get_boxids_checksum_test ... ok
[INFO] [stdout] test boxids::tests::find_common_chars_test ... ok
[INFO] [stdout] test frequency::tests::calculate_frequency_test ... ok
[INFO] [stdout] test frequency::tests::find_duplicate_frequency_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "8658c53fad19f0fa71dfd37f3280e019d85df85258f092ae04f7b7e7c593de50"`
[INFO] running `"docker" "rm" "-f" "8658c53fad19f0fa71dfd37f3280e019d85df85258f092ae04f7b7e7c593de50"`
[INFO] [stdout] 8658c53fad19f0fa71dfd37f3280e019d85df85258f092ae04f7b7e7c593de50