Dec 11 10:55:09.433 INFO checking robinhad/learning-rust against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 10:55:09.433 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-7/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 10:55:10.013 INFO [stdout] 6d1c4d27193c8f266900e2eca32cbb4e236194cc4e5fdaf481be1eeae61bce11
Dec 11 10:55:10.020 INFO running `"docker" "start" "-a" "6d1c4d27193c8f266900e2eca32cbb4e236194cc4e5fdaf481be1eeae61bce11"`
Dec 11 10:55:11.508 INFO [stderr] usermod: no changes
Dec 11 10:55:11.568 INFO [stderr]     Checking learning-rust v0.1.0 (/source)
Dec 11 10:55:11.952 INFO [stderr] warning: function is never used: `second_word`
Dec 11 10:55:11.952 INFO [stderr]   --> src/main.rs:20:1
Dec 11 10:55:11.952 INFO [stderr]    |
Dec 11 10:55:11.952 INFO [stderr] 20 | fn second_word(s: &String) -> &str {
Dec 11 10:55:11.952 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 10:55:11.968 INFO [stderr]    |
Dec 11 10:55:11.968 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 10:55:11.968 INFO [stderr] 
Dec 11 10:55:12.069 INFO [stderr] warning: function is never used: `second_word`
Dec 11 10:55:12.069 INFO [stderr]   --> src/main.rs:20:1
Dec 11 10:55:12.069 INFO [stderr]    |
Dec 11 10:55:12.069 INFO [stderr] 20 | fn second_word(s: &String) -> &str {
Dec 11 10:55:12.069 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 10:55:12.069 INFO [stderr]    |
Dec 11 10:55:12.069 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 10:55:12.069 INFO [stderr] 
Dec 11 10:55:12.086 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
Dec 11 10:55:12.096 INFO [stderr] su: No module specific data is present
Dec 11 10:55:13.058 INFO running `"docker" "inspect" "6d1c4d27193c8f266900e2eca32cbb4e236194cc4e5fdaf481be1eeae61bce11"`
Dec 11 10:55:13.472 INFO running `"docker" "rm" "-f" "6d1c4d27193c8f266900e2eca32cbb4e236194cc4e5fdaf481be1eeae61bce11"`
Dec 11 10:55:13.736 INFO [stdout] 6d1c4d27193c8f266900e2eca32cbb4e236194cc4e5fdaf481be1eeae61bce11