[INFO] updating cached repository mmihira/prowst
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mmihira/prowst
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mmihira/prowst" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/mmihira/prowst"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/mmihira/prowst'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mmihira/prowst" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/mmihira/prowst"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/mmihira/prowst'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 91b833f2af64687cb1c470a5d6db2304f066e350
[INFO] sha for GitHub repo mmihira/prowst: 91b833f2af64687cb1c470a5d6db2304f066e350
[INFO] validating manifest of mmihira/prowst on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of mmihira/prowst on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing mmihira/prowst
[INFO] finished frobbing mmihira/prowst
[INFO] frobbed toml for mmihira/prowst written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/mmihira/prowst/Cargo.toml
[INFO] started frobbing mmihira/prowst
[INFO] finished frobbing mmihira/prowst
[INFO] frobbed toml for mmihira/prowst written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/mmihira/prowst/Cargo.toml
[INFO] crate mmihira/prowst already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking mmihira/prowst against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-2/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/mmihira/prowst:/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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 989660515d191c77d43414468e7668e12e37bf5ef547d55afb6d06bbf3cb6971
[INFO] running `"docker" "start" "-a" "989660515d191c77d43414468e7668e12e37bf5ef547d55afb6d06bbf3cb6971"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking num-traits v0.1.37
[INFO] [stderr]    Compiling sdl2-sys v0.27.2
[INFO] [stderr]     Checking libc v0.2.21
[INFO] [stderr]     Checking c_vec v1.0.12
[INFO] [stderr]     Checking lazy_static v0.2.4
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking time v0.1.36
[INFO] [stderr]     Checking num-integer v0.1.33
[INFO] [stderr]     Checking num-iter v0.1.33
[INFO] [stderr]     Checking num v0.1.37
[INFO] [stderr]     Checking uuid v0.5.0
[INFO] [stderr]     Checking sdl2 v0.29.0
[INFO] [stderr]     Checking prowst v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `time`
[INFO] [stderr]  --> src/material/mod.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use time;
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/material_map/mod.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::vec`
[INFO] [stderr]  --> src/material_map/mod.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::vec;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]  --> src/simulation_engine/mod.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::mem;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::vec`
[INFO] [stderr]  --> src/simulation_engine/mod.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::vec;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/simulation_engine/mod.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `material::RGB`
[INFO] [stderr]   --> src/simulation_engine/mod.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use material::RGB;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `material::State`
[INFO] [stderr]   --> src/simulation_engine/mod.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use material::State;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `IndependentSample`, `Range`
[INFO] [stderr]  --> src/simulation_engine/trait_update_cell_positions.rs:6:27
[INFO] [stderr]   |
[INFO] [stderr] 6 | use rand::distributions::{IndependentSample, Range};
[INFO] [stderr]   |                           ^^^^^^^^^^^^^^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]   --> src/simulation_engine/trait_update_cell_positions.rs:29:26
[INFO] [stderr]    |
[INFO] [stderr] 29 |                 for x in (0..self.buffer_width) {
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::vec`
[INFO] [stderr]  --> src/brushes/mod.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::vec;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `time::Duration`
[INFO] [stderr]  --> src/counter/mod.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use time::Duration;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `surface`
[INFO] [stderr]   --> src/main.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let surface = Surface::new(512, 512, PixelFormatEnum::RGB24).unwrap();
[INFO] [stderr]    |         ^^^^^^^ help: consider prefixing with an underscore: `_surface`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `elapsed`
[INFO] [stderr]   --> src/simulation_engine/trait_update_cell_positions.rs:25:41
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn update_cell_positions(&mut self, elapsed: &time::Duration) {
[INFO] [stderr]    |                                         ^^^^^^^ help: consider prefixing with an underscore: `_elapsed`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `time`
[INFO] [stderr]  --> src/material/mod.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use time;
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/material_map/mod.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::vec`
[INFO] [stderr]  --> src/material_map/mod.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::vec;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]  --> src/simulation_engine/mod.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::mem;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::vec`
[INFO] [stderr]  --> src/simulation_engine/mod.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::vec;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/simulation_engine/mod.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `material::RGB`
[INFO] [stderr]   --> src/simulation_engine/mod.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use material::RGB;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `material::State`
[INFO] [stderr]   --> src/simulation_engine/mod.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use material::State;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `IndependentSample`, `Range`
[INFO] [stderr]  --> src/simulation_engine/trait_update_cell_positions.rs:6:27
[INFO] [stderr]   |
[INFO] [stderr] 6 | use rand::distributions::{IndependentSample, Range};
[INFO] [stderr]   |                           ^^^^^^^^^^^^^^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]   --> src/simulation_engine/trait_update_cell_positions.rs:29:26
[INFO] [stderr]    |
[INFO] [stderr] 29 |                 for x in (0..self.buffer_width) {
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::vec`
[INFO] [stderr]  --> src/brushes/mod.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::vec;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `time::Duration`
[INFO] [stderr]  --> src/counter/mod.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use time::Duration;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Calc`
[INFO] [stderr]   --> src/material/mod.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Calc,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Dead`
[INFO] [stderr]   --> src/material/mod.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     Dead
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `speed`
[INFO] [stderr]   --> src/material/mod.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub fn  speed(&self) -> f32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `contents_at_index`
[INFO] [stderr]   --> src/material_map/mod.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub fn contents_at_index (&self, y: usize, x: usize) -> Option<MaterialRecord>{
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `rgb_at_index`
[INFO] [stderr]   --> src/material_map/mod.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     pub fn rgb_at_index(&self, y: usize, x: usize) -> RGB {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `t_count`
[INFO] [stderr]   --> src/simulation_engine/mod.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     t_count: i32,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `p_count`
[INFO] [stderr]   --> src/simulation_engine/mod.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     p_count: i32,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `surface`
[INFO] [stderr]   --> src/main.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let surface = Surface::new(512, 512, PixelFormatEnum::RGB24).unwrap();
[INFO] [stderr]    |         ^^^^^^^ help: consider prefixing with an underscore: `_surface`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `elapsed`
[INFO] [stderr]   --> src/simulation_engine/trait_update_cell_positions.rs:25:41
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn update_cell_positions(&mut self, elapsed: &time::Duration) {
[INFO] [stderr]    |                                         ^^^^^^^ help: consider prefixing with an underscore: `_elapsed`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Calc`
[INFO] [stderr]   --> src/material/mod.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Calc,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Dead`
[INFO] [stderr]   --> src/material/mod.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     Dead
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `speed`
[INFO] [stderr]   --> src/material/mod.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub fn  speed(&self) -> f32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `contents_at_index`
[INFO] [stderr]   --> src/material_map/mod.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub fn contents_at_index (&self, y: usize, x: usize) -> Option<MaterialRecord>{
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `rgb_at_index`
[INFO] [stderr]   --> src/material_map/mod.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     pub fn rgb_at_index(&self, y: usize, x: usize) -> RGB {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `t_count`
[INFO] [stderr]   --> src/simulation_engine/mod.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     t_count: i32,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `p_count`
[INFO] [stderr]   --> src/simulation_engine/mod.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     p_count: i32,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [optimized + debuginfo] target(s) in 7.66s
[INFO] running `"docker" "inspect" "989660515d191c77d43414468e7668e12e37bf5ef547d55afb6d06bbf3cb6971"`
[INFO] running `"docker" "rm" "-f" "989660515d191c77d43414468e7668e12e37bf5ef547d55afb6d06bbf3cb6971"`
[INFO] [stdout] 989660515d191c77d43414468e7668e12e37bf5ef547d55afb6d06bbf3cb6971