Dec 11 12:31:31.205 INFO checking nrstepanek/advent-of-code-2018-rust against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 12:31:31.205 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-5/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +3a75e80557a103497cffbcab395a2f37061a77ea-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 11 12:31:31.770 INFO [stdout] 9e19f46237a467ec9d9149ef8f6f9ce439ec3349f11b17d4d7573f55fe9f793f
Dec 11 12:31:31.772 INFO running `"docker" "start" "-a" "9e19f46237a467ec9d9149ef8f6f9ce439ec3349f11b17d4d7573f55fe9f793f"`
Dec 11 12:31:33.335 INFO [stderr] usermod: no changes
Dec 11 12:31:33.400 INFO [stderr]     Checking advent-of-code-2018 v0.1.0 (/source)
Dec 11 12:31:33.924 INFO [stderr] warning: function is never used: `main`
Dec 11 12:31:33.924 INFO [stderr]   --> src/frequency.rs:55:1
Dec 11 12:31:33.924 INFO [stderr]    |
Dec 11 12:31:33.924 INFO [stderr] 55 | pub fn main() {
Dec 11 12:31:33.924 INFO [stderr]    | ^^^^^^^^^^^^^
Dec 11 12:31:33.924 INFO [stderr]    |
Dec 11 12:31:33.924 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 12:31:33.924 INFO [stderr] 
Dec 11 12:31:33.924 INFO [stderr] warning: function is never used: `main`
Dec 11 12:31:33.924 INFO [stderr]   --> src/boxids.rs:71:1
Dec 11 12:31:33.924 INFO [stderr]    |
Dec 11 12:31:33.924 INFO [stderr] 71 | pub fn main() {
Dec 11 12:31:33.924 INFO [stderr]    | ^^^^^^^^^^^^^
Dec 11 12:31:33.924 INFO [stderr] 
Dec 11 12:31:33.924 INFO [stderr] warning: variable `differentChars` should have a snake case name such as `different_chars`
Dec 11 12:31:33.924 INFO [stderr]   --> src/boxids.rs:48:17
Dec 11 12:31:33.924 INFO [stderr]    |
Dec 11 12:31:33.924 INFO [stderr] 48 |             let mut differentChars: i32 = 0;
Dec 11 12:31:33.924 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^
Dec 11 12:31:33.924 INFO [stderr]    |
Dec 11 12:31:33.924 INFO [stderr]    = note: #[warn(non_snake_case)] on by default
Dec 11 12:31:33.924 INFO [stderr] 
Dec 11 12:31:34.004 INFO [stderr] warning: function is never used: `calculate_frequency`
Dec 11 12:31:34.004 INFO [stderr]  --> src/frequency.rs:4:1
Dec 11 12:31:34.004 INFO [stderr]   |
Dec 11 12:31:34.004 INFO [stderr] 4 | fn calculate_frequency(input: &String) -> i32 {
Dec 11 12:31:34.004 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 12:31:34.004 INFO [stderr]   |
Dec 11 12:31:34.004 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 12:31:34.004 INFO [stderr] 
Dec 11 12:31:34.004 INFO [stderr] warning: function is never used: `find_duplicate_frequency`
Dec 11 12:31:34.004 INFO [stderr]   --> src/frequency.rs:24:1
Dec 11 12:31:34.004 INFO [stderr]    |
Dec 11 12:31:34.004 INFO [stderr] 24 | fn find_duplicate_frequency(input: &String) -> Option<i32> {
Dec 11 12:31:34.004 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 12:31:34.004 INFO [stderr] 
Dec 11 12:31:34.004 INFO [stderr] warning: function is never used: `main`
Dec 11 12:31:34.004 INFO [stderr]   --> src/frequency.rs:55:1
Dec 11 12:31:34.004 INFO [stderr]    |
Dec 11 12:31:34.004 INFO [stderr] 55 | pub fn main() {
Dec 11 12:31:34.004 INFO [stderr]    | ^^^^^^^^^^^^^
Dec 11 12:31:34.004 INFO [stderr] 
Dec 11 12:31:34.004 INFO [stderr] warning: function is never used: `get_boxids_checksum`
Dec 11 12:31:34.004 INFO [stderr]  --> src/boxids.rs:5:1
Dec 11 12:31:34.004 INFO [stderr]   |
Dec 11 12:31:34.005 INFO [stderr] 5 | fn get_boxids_checksum(input: &String) -> i32 {
Dec 11 12:31:34.005 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 12:31:34.005 INFO [stderr] 
Dec 11 12:31:34.005 INFO [stderr] warning: function is never used: `find_common_chars`
Dec 11 12:31:34.005 INFO [stderr]   --> src/boxids.rs:36:1
Dec 11 12:31:34.005 INFO [stderr]    |
Dec 11 12:31:34.005 INFO [stderr] 36 | fn find_common_chars(input: &String) -> String {
Dec 11 12:31:34.005 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 12:31:34.005 INFO [stderr] 
Dec 11 12:31:34.005 INFO [stderr] warning: function is never used: `main`
Dec 11 12:31:34.005 INFO [stderr]   --> src/boxids.rs:71:1
Dec 11 12:31:34.005 INFO [stderr]    |
Dec 11 12:31:34.005 INFO [stderr] 71 | pub fn main() {
Dec 11 12:31:34.005 INFO [stderr]    | ^^^^^^^^^^^^^
Dec 11 12:31:34.005 INFO [stderr] 
Dec 11 12:31:34.012 INFO [stderr] warning: variable `differentChars` should have a snake case name such as `different_chars`
Dec 11 12:31:34.012 INFO [stderr]   --> src/boxids.rs:48:17
Dec 11 12:31:34.012 INFO [stderr]    |
Dec 11 12:31:34.012 INFO [stderr] 48 |             let mut differentChars: i32 = 0;
Dec 11 12:31:34.012 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^
Dec 11 12:31:34.012 INFO [stderr]    |
Dec 11 12:31:34.012 INFO [stderr]    = note: #[warn(non_snake_case)] on by default
Dec 11 12:31:34.012 INFO [stderr] 
Dec 11 12:31:34.032 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
Dec 11 12:31:34.032 INFO [stderr] su: No module specific data is present
Dec 11 12:31:35.198 INFO running `"docker" "inspect" "9e19f46237a467ec9d9149ef8f6f9ce439ec3349f11b17d4d7573f55fe9f793f"`
Dec 11 12:31:35.492 INFO running `"docker" "rm" "-f" "9e19f46237a467ec9d9149ef8f6f9ce439ec3349f11b17d4d7573f55fe9f793f"`
Dec 11 12:31:35.764 INFO [stdout] 9e19f46237a467ec9d9149ef8f6f9ce439ec3349f11b17d4d7573f55fe9f793f