Dec 12 00:57:00.505 INFO checking Peter-Van-Drunen/readable against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 00:57:00.505 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-7/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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 00:57:00.934 INFO [stdout] 66b13bd7dc3b501c1d86753d127a43ed34b263aa88103568099664af210db0c6
Dec 12 00:57:00.938 INFO running `"docker" "start" "-a" "66b13bd7dc3b501c1d86753d127a43ed34b263aa88103568099664af210db0c6"`
Dec 12 00:57:02.207 INFO [stderr] usermod: no changes
Dec 12 00:57:02.281 INFO [stderr]     Checking readable v0.1.0 (/source)
Dec 12 00:57:03.220 INFO [stderr] warning: value assigned to `op_node` is never read
Dec 12 00:57:03.220 INFO [stderr]    --> src/main.rs:240:21
Dec 12 00:57:03.220 INFO [stderr]     |
Dec 12 00:57:03.220 INFO [stderr] 240 |             let mut op_node: Node = Node { t: "error_in_transformer".to_string(), val: "".to_string(), kids: Vec::new() };
Dec 12 00:57:03.220 INFO [stderr]     |                     ^^^^^^^
Dec 12 00:57:03.220 INFO [stderr]     |
Dec 12 00:57:03.220 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 12 00:57:03.220 INFO [stderr] 
Dec 12 00:57:03.252 INFO [stderr] warning: value assigned to `op_node` is never read
Dec 12 00:57:03.252 INFO [stderr]    --> src/main.rs:240:21
Dec 12 00:57:03.252 INFO [stderr]     |
Dec 12 00:57:03.252 INFO [stderr] 240 |             let mut op_node: Node = Node { t: "error_in_transformer".to_string(), val: "".to_string(), kids: Vec::new() };
Dec 12 00:57:03.252 INFO [stderr]     |                     ^^^^^^^
Dec 12 00:57:03.252 INFO [stderr]     |
Dec 12 00:57:03.252 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 12 00:57:03.252 INFO [stderr] 
Dec 12 00:57:03.266 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 00:57:03.266 INFO [stderr]   --> src/main.rs:25:5
Dec 12 00:57:03.266 INFO [stderr]    |
Dec 12 00:57:03.266 INFO [stderr] 25 |     in_file.read_to_string(&mut s);
Dec 12 00:57:03.266 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 00:57:03.266 INFO [stderr]    |
Dec 12 00:57:03.266 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 12 00:57:03.266 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 00:57:03.266 INFO [stderr] 
Dec 12 00:57:03.276 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 00:57:03.276 INFO [stderr]   --> src/main.rs:25:5
Dec 12 00:57:03.276 INFO [stderr]    |
Dec 12 00:57:03.276 INFO [stderr] 25 |     in_file.read_to_string(&mut s);
Dec 12 00:57:03.276 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 00:57:03.276 INFO [stderr]    |
Dec 12 00:57:03.276 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 12 00:57:03.276 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 00:57:03.277 INFO [stderr] 
Dec 12 00:57:03.337 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.07s
Dec 12 00:57:03.340 INFO [stderr] su: No module specific data is present
Dec 12 00:57:04.156 INFO running `"docker" "inspect" "66b13bd7dc3b501c1d86753d127a43ed34b263aa88103568099664af210db0c6"`
Dec 12 00:57:04.308 INFO running `"docker" "rm" "-f" "66b13bd7dc3b501c1d86753d127a43ed34b263aa88103568099664af210db0c6"`
Dec 12 00:57:04.544 INFO [stdout] 66b13bd7dc3b501c1d86753d127a43ed34b263aa88103568099664af210db0c6