Dec 11 07:02:39.033 INFO checking udtrokia/tson against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 07:02:39.033 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 11 07:02:39.228 INFO [stdout] 0b4813210c3bd1b05f64e0e5f12e77f8abdad04fb1f22eaeadc4d4901538ea84
Dec 11 07:02:39.228 INFO running `"docker" "start" "-a" "0b4813210c3bd1b05f64e0e5f12e77f8abdad04fb1f22eaeadc4d4901538ea84"`
Dec 11 07:02:39.519 INFO [stderr] usermod: no changes
Dec 11 07:02:39.544 INFO [stderr]     Checking tson v0.1.0 (/source)
Dec 11 07:02:39.670 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 07:02:39.670 INFO [stderr]   --> main.rs:14:9
Dec 11 07:02:39.670 INFO [stderr]    |
Dec 11 07:02:39.670 INFO [stderr] 14 |         fout.write_all((new_line + "\n").as_bytes());
Dec 11 07:02:39.670 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 07:02:39.670 INFO [stderr]    |
Dec 11 07:02:39.670 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 07:02:39.670 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 07:02:39.670 INFO [stderr] 
Dec 11 07:02:39.670 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 07:02:39.670 INFO [stderr]   --> main.rs:16:5
Dec 11 07:02:39.670 INFO [stderr]    |
Dec 11 07:02:39.670 INFO [stderr] 16 |     fout.flush();
Dec 11 07:02:39.670 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 11 07:02:39.670 INFO [stderr]    |
Dec 11 07:02:39.670 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 07:02:39.670 INFO [stderr] 
Dec 11 07:02:39.690 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 07:02:39.690 INFO [stderr]   --> main.rs:14:9
Dec 11 07:02:39.691 INFO [stderr]    |
Dec 11 07:02:39.691 INFO [stderr] 14 |         fout.write_all((new_line + "\n").as_bytes());
Dec 11 07:02:39.691 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 07:02:39.691 INFO [stderr]    |
Dec 11 07:02:39.691 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 07:02:39.691 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 07:02:39.691 INFO [stderr] 
Dec 11 07:02:39.691 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 07:02:39.691 INFO [stderr]   --> main.rs:16:5
Dec 11 07:02:39.691 INFO [stderr]    |
Dec 11 07:02:39.691 INFO [stderr] 16 |     fout.flush();
Dec 11 07:02:39.691 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 11 07:02:39.691 INFO [stderr]    |
Dec 11 07:02:39.691 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 07:02:39.691 INFO [stderr] 
Dec 11 07:02:39.692 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.16s
Dec 11 07:02:39.698 INFO [stderr] su: No module specific data is present
Dec 11 07:02:39.931 INFO running `"docker" "inspect" "0b4813210c3bd1b05f64e0e5f12e77f8abdad04fb1f22eaeadc4d4901538ea84"`
Dec 11 07:02:40.017 INFO running `"docker" "rm" "-f" "0b4813210c3bd1b05f64e0e5f12e77f8abdad04fb1f22eaeadc4d4901538ea84"`
Dec 11 07:02:40.185 INFO [stdout] 0b4813210c3bd1b05f64e0e5f12e77f8abdad04fb1f22eaeadc4d4901538ea84