[INFO] updating cached repository https://github.com/mmihira/prowst
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 91b833f2af64687cb1c470a5d6db2304f066e350
[INFO] checking mmihira/prowst against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmihira%2Fprowst" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mmihira/prowst on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/mmihira/prowst
[INFO] finished tweaking git repo https://github.com/mmihira/prowst
[INFO] tweaked toml for git repo https://github.com/mmihira/prowst written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/mmihira/prowst already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e59212ac4047b6e43fa6288e032acfd61e88637a082b423e8eaa272b368c8954
[INFO] running `"docker" "start" "-a" "e59212ac4047b6e43fa6288e032acfd61e88637a082b423e8eaa272b368c8954"`
[INFO] [stderr]     Checking libc v0.2.21
[INFO] [stderr]     Checking num-traits v0.1.37
[INFO] [stderr]    Compiling sdl2-sys v0.27.2
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking lazy_static v0.2.4
[INFO] [stderr]     Checking c_vec v1.0.12
[INFO] [stderr]     Checking num-integer v0.1.33
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking time v0.1.36
[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/rustwide/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` iterator 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 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` iterator 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: if this is intentional, prefix it 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: if this is intentional, prefix it 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 read: `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 read: `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: if this is intentional, prefix it 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: if this is intentional, prefix it with an underscore: `_elapsed`
[INFO] [stderr] 
[INFO] [stderr] warning: 21 warnings emitted
[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 read: `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 read: `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: 21 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [optimized + debuginfo] target(s) in 10.04s
[INFO] running `"docker" "inspect" "e59212ac4047b6e43fa6288e032acfd61e88637a082b423e8eaa272b368c8954"`
[INFO] running `"docker" "rm" "-f" "e59212ac4047b6e43fa6288e032acfd61e88637a082b423e8eaa272b368c8954"`
[INFO] [stdout] e59212ac4047b6e43fa6288e032acfd61e88637a082b423e8eaa272b368c8954