Dec 04 22:06:44.624 INFO checking b-m-f/rust_playground against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 22:06:44.624 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-7/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 04 22:06:45.068 INFO [stdout] 88ba0a9ef38a9c3aabf39c2cff6cd56efe9a9362a6e34c675276325b48ac2400
Dec 04 22:06:45.070 INFO running `"docker" "start" "-a" "88ba0a9ef38a9c3aabf39c2cff6cd56efe9a9362a6e34c675276325b48ac2400"`
Dec 04 22:06:46.758 INFO [stderr] usermod: no changes
Dec 04 22:06:46.895 INFO [stderr]     Checking fs_examples v0.1.0 (/source)
Dec 04 22:06:47.740 INFO [stderr] warning: function is never used: `factorial_recursive`
Dec 04 22:06:47.740 INFO [stderr]  --> src/math.rs:1:1
Dec 04 22:06:47.740 INFO [stderr]   |
Dec 04 22:06:47.740 INFO [stderr] 1 | pub fn factorial_recursive(n: i64) -> i64 {
Dec 04 22:06:47.740 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 22:06:47.740 INFO [stderr]   |
Dec 04 22:06:47.740 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 04 22:06:47.740 INFO [stderr] 
Dec 04 22:06:47.740 INFO [stderr] warning: function is never used: `factorial`
Dec 04 22:06:47.740 INFO [stderr]  --> src/math.rs:6:1
Dec 04 22:06:47.740 INFO [stderr]   |
Dec 04 22:06:47.740 INFO [stderr] 6 | pub fn factorial (n: i64) -> i64 {
Dec 04 22:06:47.740 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 22:06:47.740 INFO [stderr] 
Dec 04 22:06:47.754 INFO [stderr] warning: function is never used: `factorial_recursive`
Dec 04 22:06:47.754 INFO [stderr]  --> src/math.rs:1:1
Dec 04 22:06:47.754 INFO [stderr]   |
Dec 04 22:06:47.754 INFO [stderr] 1 | pub fn factorial_recursive(n: i64) -> i64 {
Dec 04 22:06:47.754 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 22:06:47.754 INFO [stderr]   |
Dec 04 22:06:47.754 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 04 22:06:47.754 INFO [stderr] 
Dec 04 22:06:47.754 INFO [stderr] warning: function is never used: `factorial`
Dec 04 22:06:47.754 INFO [stderr]  --> src/math.rs:6:1
Dec 04 22:06:47.754 INFO [stderr]   |
Dec 04 22:06:47.754 INFO [stderr] 6 | pub fn factorial (n: i64) -> i64 {
Dec 04 22:06:47.754 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 22:06:47.754 INFO [stderr] 
Dec 04 22:06:47.811 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.01s
Dec 04 22:06:47.814 INFO [stderr] su: No module specific data is present
Dec 04 22:06:48.752 INFO running `"docker" "inspect" "88ba0a9ef38a9c3aabf39c2cff6cd56efe9a9362a6e34c675276325b48ac2400"`
Dec 04 22:06:49.163 INFO running `"docker" "rm" "-f" "88ba0a9ef38a9c3aabf39c2cff6cd56efe9a9362a6e34c675276325b48ac2400"`
Dec 04 22:06:49.485 INFO [stdout] 88ba0a9ef38a9c3aabf39c2cff6cd56efe9a9362a6e34c675276325b48ac2400