Nov 28 20:21:27.754 INFO checking promises-0.2.0 against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 20:21:27.754 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-1/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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"`
Nov 28 20:21:28.034 INFO [stdout] 213631a9c64a9f46907d7f30c7ed388b14d33a711a5536388e5a8e98b9b648f7
Nov 28 20:21:28.043 INFO running `"docker" "start" "-a" "213631a9c64a9f46907d7f30c7ed388b14d33a711a5536388e5a8e98b9b648f7"`
Nov 28 20:21:28.896 INFO [stderr] usermod: no changes
Nov 28 20:21:28.940 INFO [stderr]     Checking promises v0.2.0 (/source)
Nov 28 20:21:29.745 INFO [stderr] warning: unused import: `std::fs`
Nov 28 20:21:29.745 INFO [stderr]  --> src/tests.rs:4:5
Nov 28 20:21:29.745 INFO [stderr]   |
Nov 28 20:21:29.746 INFO [stderr] 4 | use std::fs;
Nov 28 20:21:29.746 INFO [stderr]   |     ^^^^^^^
Nov 28 20:21:29.746 INFO [stderr]   |
Nov 28 20:21:29.747 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 20:21:29.747 INFO [stderr] 
Nov 28 20:21:29.849 INFO [stderr] warning: unused variable: `file`
Nov 28 20:21:29.850 INFO [stderr]   --> src/tests.rs:23:12
Nov 28 20:21:29.850 INFO [stderr]    |
Nov 28 20:21:29.850 INFO [stderr] 23 |         Ok(file) => println!("Created a file!"),
Nov 28 20:21:29.850 INFO [stderr]    |            ^^^^ help: consider using `_file` instead
Nov 28 20:21:29.851 INFO [stderr]    |
Nov 28 20:21:29.851 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 20:21:29.851 INFO [stderr] 
Nov 28 20:21:29.851 INFO [stderr] warning: unused variable: `p`
Nov 28 20:21:29.852 INFO [stderr]   --> src/tests.rs:31:9
Nov 28 20:21:29.852 INFO [stderr]    |
Nov 28 20:21:29.852 INFO [stderr] 31 |     let p: Promise<(), ()> = Promise::new(|| {
Nov 28 20:21:29.853 INFO [stderr]    |         ^ help: consider using `_p` instead
Nov 28 20:21:29.853 INFO [stderr] 
Nov 28 20:21:29.909 INFO [stderr] warning: function is never used: `create_file`
Nov 28 20:21:29.909 INFO [stderr]   --> src/tests.rs:13:1
Nov 28 20:21:29.909 INFO [stderr]    |
Nov 28 20:21:29.910 INFO [stderr] 13 | fn create_file() -> Result<File, io::Error> {
Nov 28 20:21:29.910 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 20:21:29.910 INFO [stderr]    |
Nov 28 20:21:29.911 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 28 20:21:29.911 INFO [stderr] 
Nov 28 20:21:29.947 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.02s
Nov 28 20:21:29.949 INFO [stderr] su: No module specific data is present
Nov 28 20:21:30.646 INFO running `"docker" "inspect" "213631a9c64a9f46907d7f30c7ed388b14d33a711a5536388e5a8e98b9b648f7"`
Nov 28 20:21:30.974 INFO running `"docker" "rm" "-f" "213631a9c64a9f46907d7f30c7ed388b14d33a711a5536388e5a8e98b9b648f7"`
Nov 28 20:21:31.198 INFO [stdout] 213631a9c64a9f46907d7f30c7ed388b14d33a711a5536388e5a8e98b9b648f7