Dec 18 06:00:07.915 INFO checking Peter-Van-Drunen/readable against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 06:00:07.915 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/Peter-Van-Drunen/readable:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 06:00:08.433 INFO [stdout] cb39d76428f2c7169ac5afe4edc8919d9f9b824261bc0595135b9be6e3616e3e
Dec 18 06:00:08.436 INFO running `"docker" "start" "-a" "cb39d76428f2c7169ac5afe4edc8919d9f9b824261bc0595135b9be6e3616e3e"`
Dec 18 06:00:10.317 INFO [stderr]     Checking readable v0.1.0 (/opt/crater/workdir)
Dec 18 06:00:10.752 INFO [stderr] warning: value assigned to `op_node` is never read
Dec 18 06:00:10.752 INFO [stderr]    --> src/main.rs:240:21
Dec 18 06:00:10.752 INFO [stderr]     |
Dec 18 06:00:10.752 INFO [stderr] 240 |             let mut op_node: Node = Node { t: "error_in_transformer".to_string(), val: "".to_string(), kids: Vec::new() };
Dec 18 06:00:10.752 INFO [stderr]     |                     ^^^^^^^
Dec 18 06:00:10.752 INFO [stderr]     |
Dec 18 06:00:10.752 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 18 06:00:10.752 INFO [stderr] 
Dec 18 06:00:10.776 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 06:00:10.776 INFO [stderr]   --> src/main.rs:25:5
Dec 18 06:00:10.776 INFO [stderr]    |
Dec 18 06:00:10.776 INFO [stderr] 25 |     in_file.read_to_string(&mut s);
Dec 18 06:00:10.776 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:00:10.776 INFO [stderr]    |
Dec 18 06:00:10.776 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 06:00:10.776 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 06:00:10.776 INFO [stderr] 
Dec 18 06:00:10.856 INFO [stderr] warning: value assigned to `op_node` is never read
Dec 18 06:00:10.856 INFO [stderr]    --> src/main.rs:240:21
Dec 18 06:00:10.856 INFO [stderr]     |
Dec 18 06:00:10.856 INFO [stderr] 240 |             let mut op_node: Node = Node { t: "error_in_transformer".to_string(), val: "".to_string(), kids: Vec::new() };
Dec 18 06:00:10.856 INFO [stderr]     |                     ^^^^^^^
Dec 18 06:00:10.856 INFO [stderr]     |
Dec 18 06:00:10.856 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 18 06:00:10.856 INFO [stderr] 
Dec 18 06:00:10.884 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 06:00:10.884 INFO [stderr]   --> src/main.rs:25:5
Dec 18 06:00:10.884 INFO [stderr]    |
Dec 18 06:00:10.884 INFO [stderr] 25 |     in_file.read_to_string(&mut s);
Dec 18 06:00:10.884 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:00:10.884 INFO [stderr]    |
Dec 18 06:00:10.884 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 06:00:10.884 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 06:00:10.884 INFO [stderr] 
Dec 18 06:00:10.948 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
Dec 18 06:00:11.605 INFO running `"docker" "inspect" "cb39d76428f2c7169ac5afe4edc8919d9f9b824261bc0595135b9be6e3616e3e"`
Dec 18 06:00:11.726 INFO running `"docker" "rm" "-f" "cb39d76428f2c7169ac5afe4edc8919d9f9b824261bc0595135b9be6e3616e3e"`
Dec 18 06:00:11.916 INFO [stdout] cb39d76428f2c7169ac5afe4edc8919d9f9b824261bc0595135b9be6e3616e3e