Dec 12 01:42:23.543 INFO checking LothTikar/rusty_playlist_maker against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 01:42:23.543 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-1/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 12 01:42:24.033 INFO [stdout] 2e02ccb2f24028c294b1a7e8d04ae8d2a301448804afa2e893a477fd45eb84bb
Dec 12 01:42:24.040 INFO running `"docker" "start" "-a" "2e02ccb2f24028c294b1a7e8d04ae8d2a301448804afa2e893a477fd45eb84bb"`
Dec 12 01:42:25.876 INFO [stderr] usermod: no changes
Dec 12 01:42:25.984 INFO [stderr]     Checking libc v0.2.43
Dec 12 01:42:27.269 INFO [stderr]     Checking memchr v2.0.2
Dec 12 01:42:27.534 INFO [stderr]     Checking csv-core v0.1.4
Dec 12 01:42:28.053 INFO [stderr]     Checking csv v1.0.1
Dec 12 01:42:29.721 INFO [stderr]     Checking rusty_playlist_maker v0.1.0 (/source)
Dec 12 01:42:30.996 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 01:42:30.996 INFO [stderr]   --> src/main.rs:65:9
Dec 12 01:42:30.996 INFO [stderr]    |
Dec 12 01:42:30.996 INFO [stderr] 65 |         file.write_all((i + "\n").as_bytes());
Dec 12 01:42:30.996 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 01:42:30.996 INFO [stderr]    |
Dec 12 01:42:30.996 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 12 01:42:30.996 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 01:42:30.996 INFO [stderr] 
Dec 12 01:42:30.996 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 01:42:30.996 INFO [stderr]   --> src/main.rs:72:13
Dec 12 01:42:30.996 INFO [stderr]    |
Dec 12 01:42:30.996 INFO [stderr] 72 |             file.write_all(format!("{}\n", i).as_bytes());
Dec 12 01:42:30.996 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 01:42:30.996 INFO [stderr]    |
Dec 12 01:42:30.996 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 01:42:30.996 INFO [stderr] 
Dec 12 01:42:31.005 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 01:42:31.005 INFO [stderr]   --> src/main.rs:65:9
Dec 12 01:42:31.005 INFO [stderr]    |
Dec 12 01:42:31.005 INFO [stderr] 65 |         file.write_all((i + "\n").as_bytes());
Dec 12 01:42:31.005 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 01:42:31.005 INFO [stderr]    |
Dec 12 01:42:31.005 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 12 01:42:31.006 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 01:42:31.006 INFO [stderr] 
Dec 12 01:42:31.006 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 01:42:31.006 INFO [stderr]   --> src/main.rs:72:13
Dec 12 01:42:31.006 INFO [stderr]    |
Dec 12 01:42:31.006 INFO [stderr] 72 |             file.write_all(format!("{}\n", i).as_bytes());
Dec 12 01:42:31.006 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 01:42:31.006 INFO [stderr]    |
Dec 12 01:42:31.006 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 01:42:31.006 INFO [stderr] 
Dec 12 01:42:31.029 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.13s
Dec 12 01:42:31.044 INFO [stderr] su: No module specific data is present
Dec 12 01:42:31.994 INFO running `"docker" "inspect" "2e02ccb2f24028c294b1a7e8d04ae8d2a301448804afa2e893a477fd45eb84bb"`
Dec 12 01:42:32.403 INFO running `"docker" "rm" "-f" "2e02ccb2f24028c294b1a7e8d04ae8d2a301448804afa2e893a477fd45eb84bb"`
Dec 12 01:42:32.764 INFO [stdout] 2e02ccb2f24028c294b1a7e8d04ae8d2a301448804afa2e893a477fd45eb84bb