Dec 19 21:56:39.703 INFO checking Scryfox/hutch against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 21:56:39.703 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-1/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/Scryfox/hutch:/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 21:56:39.906 INFO [stdout] 216649359e9c5ffa67dca20d35fc45e74c54c4c2bd11d9fd397f3138b70cbf93
Dec 19 21:56:39.906 INFO running `"docker" "start" "-a" "216649359e9c5ffa67dca20d35fc45e74c54c4c2bd11d9fd397f3138b70cbf93"`
Dec 19 21:56:40.705 INFO [stderr]     Checking hutch v0.1.0 (/opt/crater/workdir)
Dec 19 21:56:40.984 INFO [stderr] warning: unused import: `organism::Item`
Dec 19 21:56:40.984 INFO [stderr]  --> src/map.rs:6:5
Dec 19 21:56:40.984 INFO [stderr]   |
Dec 19 21:56:40.984 INFO [stderr] 6 | use organism::Item;
Dec 19 21:56:40.984 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 19 21:56:40.984 INFO [stderr]   |
Dec 19 21:56:40.984 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 21:56:40.984 INFO [stderr] 
Dec 19 21:56:40.984 INFO [stderr] warning: unused variable: `other_maps`
Dec 19 21:56:40.984 INFO [stderr]   --> src/map.rs:90:24
Dec 19 21:56:40.984 INFO [stderr]    |
Dec 19 21:56:40.984 INFO [stderr] 90 |     pub fn step(&self, other_maps: &Vec<Element>) -> Self {
Dec 19 21:56:40.984 INFO [stderr]    |                        ^^^^^^^^^^ help: consider using `_other_maps` instead
Dec 19 21:56:40.984 INFO [stderr]    |
Dec 19 21:56:40.984 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 21:56:40.984 INFO [stderr] 
Dec 19 21:56:40.984 INFO [stderr] warning: unused variable: `org`
Dec 19 21:56:40.984 INFO [stderr]   --> src/organism.rs:57:40
Dec 19 21:56:40.984 INFO [stderr]    |
Dec 19 21:56:40.984 INFO [stderr] 57 |                 map::Element::Organism(org) => {}
Dec 19 21:56:40.984 INFO [stderr]    |                                        ^^^ help: consider using `_org` instead
Dec 19 21:56:40.984 INFO [stderr] 
Dec 19 21:56:40.992 INFO [stderr] warning: variable does not need to be mutable
Dec 19 21:56:40.992 INFO [stderr]   --> src/map.rs:91:13
Dec 19 21:56:40.992 INFO [stderr]    |
Dec 19 21:56:40.992 INFO [stderr] 91 |         let mut stepped_items = Vec::new();
Dec 19 21:56:40.992 INFO [stderr]    |             ----^^^^^^^^^^^^^
Dec 19 21:56:40.992 INFO [stderr]    |             |
Dec 19 21:56:40.992 INFO [stderr]    |             help: remove this `mut`
Dec 19 21:56:40.992 INFO [stderr]    |
Dec 19 21:56:40.992 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 21:56:40.992 INFO [stderr] 
Dec 19 21:56:41.004 INFO [stderr] warning: unused import: `organism::Item`
Dec 19 21:56:41.004 INFO [stderr]  --> src/map.rs:6:5
Dec 19 21:56:41.004 INFO [stderr]   |
Dec 19 21:56:41.004 INFO [stderr] 6 | use organism::Item;
Dec 19 21:56:41.004 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 19 21:56:41.004 INFO [stderr]   |
Dec 19 21:56:41.004 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 21:56:41.004 INFO [stderr] 
Dec 19 21:56:41.012 INFO [stderr] warning: unused variable: `other_maps`
Dec 19 21:56:41.012 INFO [stderr]   --> src/map.rs:90:24
Dec 19 21:56:41.012 INFO [stderr]    |
Dec 19 21:56:41.012 INFO [stderr] 90 |     pub fn step(&self, other_maps: &Vec<Element>) -> Self {
Dec 19 21:56:41.012 INFO [stderr]    |                        ^^^^^^^^^^ help: consider using `_other_maps` instead
Dec 19 21:56:41.012 INFO [stderr]    |
Dec 19 21:56:41.012 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 21:56:41.012 INFO [stderr] 
Dec 19 21:56:41.012 INFO [stderr] warning: unused variable: `org`
Dec 19 21:56:41.012 INFO [stderr]   --> src/organism.rs:57:40
Dec 19 21:56:41.012 INFO [stderr]    |
Dec 19 21:56:41.012 INFO [stderr] 57 |                 map::Element::Organism(org) => {}
Dec 19 21:56:41.012 INFO [stderr]    |                                        ^^^ help: consider using `_org` instead
Dec 19 21:56:41.012 INFO [stderr] 
Dec 19 21:56:41.012 INFO [stderr] warning: variable does not need to be mutable
Dec 19 21:56:41.012 INFO [stderr]   --> src/map.rs:91:13
Dec 19 21:56:41.012 INFO [stderr]    |
Dec 19 21:56:41.012 INFO [stderr] 91 |         let mut stepped_items = Vec::new();
Dec 19 21:56:41.012 INFO [stderr]    |             ----^^^^^^^^^^^^^
Dec 19 21:56:41.012 INFO [stderr]    |             |
Dec 19 21:56:41.012 INFO [stderr]    |             help: remove this `mut`
Dec 19 21:56:41.012 INFO [stderr]    |
Dec 19 21:56:41.012 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 21:56:41.012 INFO [stderr] 
Dec 19 21:56:41.260 INFO [stderr] warning: unused variable: `sim`
Dec 19 21:56:41.260 INFO [stderr]   --> src/cli.rs:62:16
Dec 19 21:56:41.260 INFO [stderr]    |
Dec 19 21:56:41.260 INFO [stderr] 62 | pub fn log_sim(sim: &simulation::Simulation, filename: &str) {
Dec 19 21:56:41.260 INFO [stderr]    |                ^^^ help: consider using `_sim` instead
Dec 19 21:56:41.260 INFO [stderr]    |
Dec 19 21:56:41.260 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 21:56:41.260 INFO [stderr] 
Dec 19 21:56:41.272 INFO [stderr] warning: variable does not need to be mutable
Dec 19 21:56:41.272 INFO [stderr]   --> src/cli.rs:63:9
Dec 19 21:56:41.272 INFO [stderr]    |
Dec 19 21:56:41.272 INFO [stderr] 63 |     let mut file = File::create(filename).unwrap();
Dec 19 21:56:41.272 INFO [stderr]    |         ----^^^^
Dec 19 21:56:41.272 INFO [stderr]    |         |
Dec 19 21:56:41.272 INFO [stderr]    |         help: remove this `mut`
Dec 19 21:56:41.272 INFO [stderr]    |
Dec 19 21:56:41.272 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 21:56:41.272 INFO [stderr] 
Dec 19 21:56:41.272 INFO [stderr] warning: function is never used: `log_sim`
Dec 19 21:56:41.272 INFO [stderr]   --> src/cli.rs:62:1
Dec 19 21:56:41.272 INFO [stderr]    |
Dec 19 21:56:41.272 INFO [stderr] 62 | pub fn log_sim(sim: &simulation::Simulation, filename: &str) {
Dec 19 21:56:41.272 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:56:41.272 INFO [stderr]    |
Dec 19 21:56:41.272 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 21:56:41.272 INFO [stderr] 
Dec 19 21:56:41.279 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 21:56:41.279 INFO [stderr]   --> src/cli.rs:67:5
Dec 19 21:56:41.279 INFO [stderr]    |
Dec 19 21:56:41.279 INFO [stderr] 67 |     write!(buffer, "{}", "Hello");
Dec 19 21:56:41.279 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:56:41.279 INFO [stderr]    |
Dec 19 21:56:41.279 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 21:56:41.279 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 21:56:41.279 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 21:56:41.279 INFO [stderr] 
Dec 19 21:56:41.354 INFO [stderr] warning: unused variable: `sim`
Dec 19 21:56:41.354 INFO [stderr]   --> src/cli.rs:62:16
Dec 19 21:56:41.354 INFO [stderr]    |
Dec 19 21:56:41.354 INFO [stderr] 62 | pub fn log_sim(sim: &simulation::Simulation, filename: &str) {
Dec 19 21:56:41.354 INFO [stderr]    |                ^^^ help: consider using `_sim` instead
Dec 19 21:56:41.354 INFO [stderr]    |
Dec 19 21:56:41.354 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 21:56:41.354 INFO [stderr] 
Dec 19 21:56:41.367 INFO [stderr] warning: variable does not need to be mutable
Dec 19 21:56:41.367 INFO [stderr]   --> src/cli.rs:63:9
Dec 19 21:56:41.367 INFO [stderr]    |
Dec 19 21:56:41.367 INFO [stderr] 63 |     let mut file = File::create(filename).unwrap();
Dec 19 21:56:41.367 INFO [stderr]    |         ----^^^^
Dec 19 21:56:41.367 INFO [stderr]    |         |
Dec 19 21:56:41.367 INFO [stderr]    |         help: remove this `mut`
Dec 19 21:56:41.367 INFO [stderr]    |
Dec 19 21:56:41.367 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 21:56:41.367 INFO [stderr] 
Dec 19 21:56:41.367 INFO [stderr] warning: function is never used: `log_sim`
Dec 19 21:56:41.367 INFO [stderr]   --> src/cli.rs:62:1
Dec 19 21:56:41.367 INFO [stderr]    |
Dec 19 21:56:41.367 INFO [stderr] 62 | pub fn log_sim(sim: &simulation::Simulation, filename: &str) {
Dec 19 21:56:41.367 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:56:41.367 INFO [stderr]    |
Dec 19 21:56:41.367 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 21:56:41.367 INFO [stderr] 
Dec 19 21:56:41.375 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 21:56:41.376 INFO [stderr]   --> src/cli.rs:67:5
Dec 19 21:56:41.376 INFO [stderr]    |
Dec 19 21:56:41.376 INFO [stderr] 67 |     write!(buffer, "{}", "Hello");
Dec 19 21:56:41.376 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:56:41.376 INFO [stderr]    |
Dec 19 21:56:41.376 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 21:56:41.376 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 21:56:41.376 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 21:56:41.376 INFO [stderr] 
Dec 19 21:56:41.394 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
Dec 19 21:56:41.622 INFO running `"docker" "inspect" "216649359e9c5ffa67dca20d35fc45e74c54c4c2bd11d9fd397f3138b70cbf93"`
Dec 19 21:56:41.733 INFO running `"docker" "rm" "-f" "216649359e9c5ffa67dca20d35fc45e74c54c4c2bd11d9fd397f3138b70cbf93"`
Dec 19 21:56:41.830 INFO [stdout] 216649359e9c5ffa67dca20d35fc45e74c54c4c2bd11d9fd397f3138b70cbf93