Nov 29 15:50:56.464 INFO checking udtrokia/tson against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 29 15:50:56.464 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-1/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/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 +a49316ddc99d9d595193557fc899f6c52e4d9af9-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 29 15:50:56.620 INFO [stdout] 241e8078cccc6d1954dc28dc6d4ecaa32f999ff26a03605b220625aea2614adc
Nov 29 15:50:56.626 INFO running `"docker" "start" "-a" "241e8078cccc6d1954dc28dc6d4ecaa32f999ff26a03605b220625aea2614adc"`
Nov 29 15:50:57.162 INFO [stderr] usermod: no changes
Nov 29 15:50:57.248 INFO [stderr]     Checking tson v0.1.0 (/source)
Nov 29 15:50:57.384 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 15:50:57.384 INFO [stderr]   --> main.rs:14:9
Nov 29 15:50:57.384 INFO [stderr]    |
Nov 29 15:50:57.384 INFO [stderr] 14 |         fout.write_all((new_line + "\n").as_bytes());
Nov 29 15:50:57.384 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 15:50:57.384 INFO [stderr]    |
Nov 29 15:50:57.384 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 29 15:50:57.384 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 15:50:57.384 INFO [stderr] 
Nov 29 15:50:57.392 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 15:50:57.392 INFO [stderr]   --> main.rs:16:5
Nov 29 15:50:57.392 INFO [stderr]    |
Nov 29 15:50:57.392 INFO [stderr] 16 |     fout.flush();
Nov 29 15:50:57.392 INFO [stderr]    |     ^^^^^^^^^^^^^
Nov 29 15:50:57.392 INFO [stderr]    |
Nov 29 15:50:57.392 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 15:50:57.392 INFO [stderr] 
Nov 29 15:50:57.413 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 15:50:57.413 INFO [stderr]   --> main.rs:14:9
Nov 29 15:50:57.413 INFO [stderr]    |
Nov 29 15:50:57.413 INFO [stderr] 14 |         fout.write_all((new_line + "\n").as_bytes());
Nov 29 15:50:57.413 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 15:50:57.413 INFO [stderr]    |
Nov 29 15:50:57.413 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 29 15:50:57.413 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 15:50:57.413 INFO [stderr] 
Nov 29 15:50:57.413 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 15:50:57.413 INFO [stderr]   --> main.rs:16:5
Nov 29 15:50:57.413 INFO [stderr]    |
Nov 29 15:50:57.413 INFO [stderr] 16 |     fout.flush();
Nov 29 15:50:57.413 INFO [stderr]    |     ^^^^^^^^^^^^^
Nov 29 15:50:57.413 INFO [stderr]    |
Nov 29 15:50:57.413 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 15:50:57.413 INFO [stderr] 
Nov 29 15:50:57.437 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.23s
Nov 29 15:50:57.443 INFO [stderr] su: No module specific data is present
Nov 29 15:50:57.662 INFO running `"docker" "inspect" "241e8078cccc6d1954dc28dc6d4ecaa32f999ff26a03605b220625aea2614adc"`
Nov 29 15:50:57.814 INFO running `"docker" "rm" "-f" "241e8078cccc6d1954dc28dc6d4ecaa32f999ff26a03605b220625aea2614adc"`
Nov 29 15:50:57.955 INFO [stdout] 241e8078cccc6d1954dc28dc6d4ecaa32f999ff26a03605b220625aea2614adc