Dec 19 19:38:00.809 INFO checking boyter/rcc against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 19:38:00.809 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/boyter/rcc:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 19:38:01.284 INFO [stdout] c404ca9bf07ab15fb587e0399e22ab12116ed1b32930c7c752a3984637fc10c3
Dec 19 19:38:01.285 INFO running `"docker" "start" "-a" "c404ca9bf07ab15fb587e0399e22ab12116ed1b32930c7c752a3984637fc10c3"`
Dec 19 19:38:03.008 INFO [stderr]     Checking rcc v0.1.0 (/opt/crater/workdir)
Dec 19 19:38:03.441 INFO [stderr] warning: variable `bytes_count` is assigned to, but never used
Dec 19 19:38:03.441 INFO [stderr]   --> src/main.rs:45:13
Dec 19 19:38:03.441 INFO [stderr]    |
Dec 19 19:38:03.441 INFO [stderr] 45 |     let mut bytes_count: u32;
Dec 19 19:38:03.441 INFO [stderr]    |             ^^^^^^^^^^^
Dec 19 19:38:03.441 INFO [stderr]    |
Dec 19 19:38:03.441 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 19:38:03.441 INFO [stderr]    = note: consider using `_bytes_count` instead
Dec 19 19:38:03.441 INFO [stderr] 
Dec 19 19:38:03.441 INFO [stderr] warning: value assigned to `bytes_count` is never read
Dec 19 19:38:03.441 INFO [stderr]   --> src/main.rs:47:5
Dec 19 19:38:03.441 INFO [stderr]    |
Dec 19 19:38:03.441 INFO [stderr] 47 |     bytes_count = 0;
Dec 19 19:38:03.441 INFO [stderr]    |     ^^^^^^^^^^^
Dec 19 19:38:03.441 INFO [stderr]    |
Dec 19 19:38:03.441 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 19 19:38:03.441 INFO [stderr]    = help: maybe it is overwritten before being read?
Dec 19 19:38:03.441 INFO [stderr] 
Dec 19 19:38:03.460 INFO [stderr] warning: variable does not need to be mutable
Dec 19 19:38:03.460 INFO [stderr]   --> src/main.rs:45:9
Dec 19 19:38:03.460 INFO [stderr]    |
Dec 19 19:38:03.460 INFO [stderr] 45 |     let mut bytes_count: u32;
Dec 19 19:38:03.460 INFO [stderr]    |         ----^^^^^^^^^^^
Dec 19 19:38:03.460 INFO [stderr]    |         |
Dec 19 19:38:03.460 INFO [stderr]    |         help: remove this `mut`
Dec 19 19:38:03.460 INFO [stderr]    |
Dec 19 19:38:03.460 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 19:38:03.460 INFO [stderr] 
Dec 19 19:38:03.460 INFO [stderr] warning: field is never used: `code`
Dec 19 19:38:03.460 INFO [stderr]   --> src/main.rs:67:5
Dec 19 19:38:03.460 INFO [stderr]    |
Dec 19 19:38:03.460 INFO [stderr] 67 |     code: u32,
Dec 19 19:38:03.460 INFO [stderr]    |     ^^^^^^^^^
Dec 19 19:38:03.460 INFO [stderr]    |
Dec 19 19:38:03.460 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 19:38:03.460 INFO [stderr] 
Dec 19 19:38:03.460 INFO [stderr] warning: field is never used: `comment`
Dec 19 19:38:03.460 INFO [stderr]   --> src/main.rs:68:5
Dec 19 19:38:03.460 INFO [stderr]    |
Dec 19 19:38:03.460 INFO [stderr] 68 |     comment: u32,
Dec 19 19:38:03.461 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 19 19:38:03.461 INFO [stderr] 
Dec 19 19:38:03.461 INFO [stderr] warning: field is never used: `blank`
Dec 19 19:38:03.461 INFO [stderr]   --> src/main.rs:69:5
Dec 19 19:38:03.461 INFO [stderr]    |
Dec 19 19:38:03.461 INFO [stderr] 69 |     blank: u32,
Dec 19 19:38:03.461 INFO [stderr]    |     ^^^^^^^^^^
Dec 19 19:38:03.461 INFO [stderr] 
Dec 19 19:38:03.476 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 19:38:03.476 INFO [stderr]   --> src/main.rs:16:9
Dec 19 19:38:03.476 INFO [stderr]    |
Dec 19 19:38:03.476 INFO [stderr] 16 |         process_file(&mut file_job);
Dec 19 19:38:03.476 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:38:03.476 INFO [stderr]    |
Dec 19 19:38:03.476 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 19:38:03.476 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 19:38:03.476 INFO [stderr] 
Dec 19 19:38:03.488 INFO [stderr] warning: variable `bytes_count` is assigned to, but never used
Dec 19 19:38:03.488 INFO [stderr]   --> src/main.rs:45:13
Dec 19 19:38:03.488 INFO [stderr]    |
Dec 19 19:38:03.488 INFO [stderr] 45 |     let mut bytes_count: u32;
Dec 19 19:38:03.488 INFO [stderr]    |             ^^^^^^^^^^^
Dec 19 19:38:03.488 INFO [stderr]    |
Dec 19 19:38:03.488 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 19:38:03.488 INFO [stderr]    = note: consider using `_bytes_count` instead
Dec 19 19:38:03.488 INFO [stderr] 
Dec 19 19:38:03.488 INFO [stderr] warning: value assigned to `bytes_count` is never read
Dec 19 19:38:03.488 INFO [stderr]   --> src/main.rs:47:5
Dec 19 19:38:03.488 INFO [stderr]    |
Dec 19 19:38:03.488 INFO [stderr] 47 |     bytes_count = 0;
Dec 19 19:38:03.488 INFO [stderr]    |     ^^^^^^^^^^^
Dec 19 19:38:03.488 INFO [stderr]    |
Dec 19 19:38:03.488 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 19 19:38:03.488 INFO [stderr]    = help: maybe it is overwritten before being read?
Dec 19 19:38:03.488 INFO [stderr] 
Dec 19 19:38:03.496 INFO [stderr] warning: variable does not need to be mutable
Dec 19 19:38:03.496 INFO [stderr]   --> src/main.rs:45:9
Dec 19 19:38:03.496 INFO [stderr]    |
Dec 19 19:38:03.496 INFO [stderr] 45 |     let mut bytes_count: u32;
Dec 19 19:38:03.496 INFO [stderr]    |         ----^^^^^^^^^^^
Dec 19 19:38:03.496 INFO [stderr]    |         |
Dec 19 19:38:03.496 INFO [stderr]    |         help: remove this `mut`
Dec 19 19:38:03.516 INFO [stderr]    |
Dec 19 19:38:03.516 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 19:38:03.516 INFO [stderr] 
Dec 19 19:38:03.516 INFO [stderr] warning: field is never used: `code`
Dec 19 19:38:03.516 INFO [stderr]   --> src/main.rs:67:5
Dec 19 19:38:03.516 INFO [stderr]    |
Dec 19 19:38:03.516 INFO [stderr] 67 |     code: u32,
Dec 19 19:38:03.516 INFO [stderr]    |     ^^^^^^^^^
Dec 19 19:38:03.516 INFO [stderr]    |
Dec 19 19:38:03.516 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 19:38:03.516 INFO [stderr] 
Dec 19 19:38:03.516 INFO [stderr] warning: field is never used: `comment`
Dec 19 19:38:03.516 INFO [stderr]   --> src/main.rs:68:5
Dec 19 19:38:03.516 INFO [stderr]    |
Dec 19 19:38:03.516 INFO [stderr] 68 |     comment: u32,
Dec 19 19:38:03.516 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 19 19:38:03.516 INFO [stderr] 
Dec 19 19:38:03.516 INFO [stderr] warning: field is never used: `blank`
Dec 19 19:38:03.516 INFO [stderr]   --> src/main.rs:69:5
Dec 19 19:38:03.516 INFO [stderr]    |
Dec 19 19:38:03.516 INFO [stderr] 69 |     blank: u32,
Dec 19 19:38:03.516 INFO [stderr]    |     ^^^^^^^^^^
Dec 19 19:38:03.517 INFO [stderr] 
Dec 19 19:38:03.532 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 19:38:03.532 INFO [stderr]   --> src/main.rs:16:9
Dec 19 19:38:03.532 INFO [stderr]    |
Dec 19 19:38:03.532 INFO [stderr] 16 |         process_file(&mut file_job);
Dec 19 19:38:03.532 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:38:03.532 INFO [stderr]    |
Dec 19 19:38:03.532 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 19:38:03.532 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 19:38:03.532 INFO [stderr] 
Dec 19 19:38:03.572 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
Dec 19 19:38:04.736 INFO running `"docker" "inspect" "c404ca9bf07ab15fb587e0399e22ab12116ed1b32930c7c752a3984637fc10c3"`
Dec 19 19:38:05.050 INFO running `"docker" "rm" "-f" "c404ca9bf07ab15fb587e0399e22ab12116ed1b32930c7c752a3984637fc10c3"`
Dec 19 19:38:05.344 INFO [stdout] c404ca9bf07ab15fb587e0399e22ab12116ed1b32930c7c752a3984637fc10c3