Dec 11 12:31:29.926 INFO checking nrstepanek/advent-of-code-2018-rust against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 12:31:29.926 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-6/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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 12:31:30.495 INFO [stdout] 4ac61e2a1fc7c328a5684f1d5ef81b923c9400c1b031e537bdc01458c3b4dfc9
Dec 11 12:31:30.496 INFO running `"docker" "start" "-a" "4ac61e2a1fc7c328a5684f1d5ef81b923c9400c1b031e537bdc01458c3b4dfc9"`
Dec 11 12:31:32.366 INFO [stderr] usermod: no changes
Dec 11 12:31:32.476 INFO [stderr]     Checking advent-of-code-2018 v0.1.0 (/source)
Dec 11 12:31:33.032 INFO [stderr] warning: function is never used: `calculate_frequency`
Dec 11 12:31:33.033 INFO [stderr]  --> src/frequency.rs:4:1
Dec 11 12:31:33.033 INFO [stderr]   |
Dec 11 12:31:33.033 INFO [stderr] 4 | fn calculate_frequency(input: &String) -> i32 {
Dec 11 12:31:33.033 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 12:31:33.033 INFO [stderr]   |
Dec 11 12:31:33.033 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 12:31:33.033 INFO [stderr] 
Dec 11 12:31:33.033 INFO [stderr] warning: function is never used: `find_duplicate_frequency`
Dec 11 12:31:33.033 INFO [stderr]   --> src/frequency.rs:24:1
Dec 11 12:31:33.033 INFO [stderr]    |
Dec 11 12:31:33.033 INFO [stderr] 24 | fn find_duplicate_frequency(input: &String) -> Option<i32> {
Dec 11 12:31:33.033 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 12:31:33.033 INFO [stderr] 
Dec 11 12:31:33.033 INFO [stderr] warning: function is never used: `main`
Dec 11 12:31:33.033 INFO [stderr]   --> src/frequency.rs:55:1
Dec 11 12:31:33.033 INFO [stderr]    |
Dec 11 12:31:33.033 INFO [stderr] 55 | pub fn main() {
Dec 11 12:31:33.033 INFO [stderr]    | ^^^^^^^^^^^^^
Dec 11 12:31:33.033 INFO [stderr] 
Dec 11 12:31:33.033 INFO [stderr] warning: function is never used: `get_boxids_checksum`
Dec 11 12:31:33.033 INFO [stderr]  --> src/boxids.rs:5:1
Dec 11 12:31:33.033 INFO [stderr]   |
Dec 11 12:31:33.033 INFO [stderr] 5 | fn get_boxids_checksum(input: &String) -> i32 {
Dec 11 12:31:33.033 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 12:31:33.033 INFO [stderr] 
Dec 11 12:31:33.033 INFO [stderr] warning: function is never used: `find_common_chars`
Dec 11 12:31:33.033 INFO [stderr]   --> src/boxids.rs:36:1
Dec 11 12:31:33.033 INFO [stderr]    |
Dec 11 12:31:33.033 INFO [stderr] 36 | fn find_common_chars(input: &String) -> String {
Dec 11 12:31:33.033 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 12:31:33.033 INFO [stderr] 
Dec 11 12:31:33.033 INFO [stderr] warning: function is never used: `main`
Dec 11 12:31:33.033 INFO [stderr]   --> src/boxids.rs:71:1
Dec 11 12:31:33.033 INFO [stderr]    |
Dec 11 12:31:33.033 INFO [stderr] 71 | pub fn main() {
Dec 11 12:31:33.033 INFO [stderr]    | ^^^^^^^^^^^^^
Dec 11 12:31:33.033 INFO [stderr] 
Dec 11 12:31:33.033 INFO [stderr] warning: variable `differentChars` should have a snake case name such as `different_chars`
Dec 11 12:31:33.033 INFO [stderr]   --> src/boxids.rs:48:17
Dec 11 12:31:33.033 INFO [stderr]    |
Dec 11 12:31:33.033 INFO [stderr] 48 |             let mut differentChars: i32 = 0;
Dec 11 12:31:33.033 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^
Dec 11 12:31:33.033 INFO [stderr]    |
Dec 11 12:31:33.033 INFO [stderr]    = note: #[warn(non_snake_case)] on by default
Dec 11 12:31:33.033 INFO [stderr] 
Dec 11 12:31:33.335 INFO [stderr] warning: function is never used: `main`
Dec 11 12:31:33.335 INFO [stderr]   --> src/frequency.rs:55:1
Dec 11 12:31:33.335 INFO [stderr]    |
Dec 11 12:31:33.335 INFO [stderr] 55 | pub fn main() {
Dec 11 12:31:33.335 INFO [stderr]    | ^^^^^^^^^^^^^
Dec 11 12:31:33.335 INFO [stderr]    |
Dec 11 12:31:33.335 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 12:31:33.335 INFO [stderr] 
Dec 11 12:31:33.335 INFO [stderr] warning: function is never used: `main`
Dec 11 12:31:33.335 INFO [stderr]   --> src/boxids.rs:71:1
Dec 11 12:31:33.335 INFO [stderr]    |
Dec 11 12:31:33.335 INFO [stderr] 71 | pub fn main() {
Dec 11 12:31:33.335 INFO [stderr]    | ^^^^^^^^^^^^^
Dec 11 12:31:33.335 INFO [stderr] 
Dec 11 12:31:33.339 INFO [stderr] warning: variable `differentChars` should have a snake case name such as `different_chars`
Dec 11 12:31:33.339 INFO [stderr]   --> src/boxids.rs:48:17
Dec 11 12:31:33.339 INFO [stderr]    |
Dec 11 12:31:33.339 INFO [stderr] 48 |             let mut differentChars: i32 = 0;
Dec 11 12:31:33.339 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^
Dec 11 12:31:33.339 INFO [stderr]    |
Dec 11 12:31:33.339 INFO [stderr]    = note: #[warn(non_snake_case)] on by default
Dec 11 12:31:33.339 INFO [stderr] 
Dec 11 12:31:33.380 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.98s
Dec 11 12:31:33.404 INFO [stderr] su: No module specific data is present
Dec 11 12:31:34.855 INFO running `"docker" "inspect" "4ac61e2a1fc7c328a5684f1d5ef81b923c9400c1b031e537bdc01458c3b4dfc9"`
Dec 11 12:31:35.178 INFO running `"docker" "rm" "-f" "4ac61e2a1fc7c328a5684f1d5ef81b923c9400c1b031e537bdc01458c3b4dfc9"`
Dec 11 12:31:35.526 INFO [stdout] 4ac61e2a1fc7c328a5684f1d5ef81b923c9400c1b031e537bdc01458c3b4dfc9