[INFO] cloning repository https://github.com/mikeshultz/pixel-seed
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mikeshultz/pixel-seed" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikeshultz%2Fpixel-seed", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikeshultz%2Fpixel-seed'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fe11d1b765c993ed9ab95dcbb86561e01d3d89f0
[INFO] checking mikeshultz/pixel-seed against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikeshultz%2Fpixel-seed" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mikeshultz/pixel-seed on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mikeshultz/pixel-seed
[INFO] finished tweaking git repo https://github.com/mikeshultz/pixel-seed
[INFO] tweaked toml for git repo https://github.com/mikeshultz/pixel-seed written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mikeshultz/pixel-seed already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded svg v0.5.12
[INFO] [stderr]   Downloaded draw v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9ce6352d1f773631502a0c8428d4c6566fd86fa64c2c319a3200cef2bfa2202b
[INFO] running `Command { std: "docker" "start" "-a" "9ce6352d1f773631502a0c8428d4c6566fd86fa64c2c319a3200cef2bfa2202b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ce6352d1f773631502a0c8428d4c6566fd86fa64c2c319a3200cef2bfa2202b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ce6352d1f773631502a0c8428d4c6566fd86fa64c2c319a3200cef2bfa2202b", kill_on_drop: false }`
[INFO] [stdout] 9ce6352d1f773631502a0c8428d4c6566fd86fa64c2c319a3200cef2bfa2202b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17556c615c87d4df7f7c2a0edea93f98bb89699945394498085d23faeeae3349
[INFO] running `Command { std: "docker" "start" "-a" "17556c615c87d4df7f7c2a0edea93f98bb89699945394498085d23faeeae3349", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling cgmath v0.17.0
[INFO] [stderr]     Checking bytemuck v1.12.1
[INFO] [stderr]     Checking svg v0.5.12
[INFO] [stderr]     Checking bytes v1.2.1
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking digest v0.10.5
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking sha2 v0.10.6
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rgb v0.8.33
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking draw v0.3.0
[INFO] [stderr]     Checking pixel-seed v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `hex` is imported redundantly
[INFO] [stdout]  --> src/pattern.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use hex;
[INFO] [stdout]   |     ^^^ the item `hex` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `hex` is imported redundantly
[INFO] [stdout]  --> src/utils.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use hex;
[INFO] [stdout]   |     ^^^ the item `hex` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `hex` is imported redundantly
[INFO] [stdout]  --> src/pattern.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use hex;
[INFO] [stdout]   |     ^^^ the item `hex` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `hex` is imported redundantly
[INFO] [stdout]  --> src/utils.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use hex;
[INFO] [stdout]   |     ^^^ the item `hex` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Direction` is never used
[INFO] [stdout]  --> src/drawing.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub enum Direction {
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Direction` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `turn` is never used
[INFO] [stdout]   --> src/drawing.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Direction {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 16 |     /// Return a Direction as if making a relative directional turn
[INFO] [stdout] 17 |     pub fn turn(&self, relative: Turn) -> Self {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Turn` is never used
[INFO] [stdout]   --> src/drawing.rs:45:10
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub enum Turn {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Turn` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cursor` is never constructed
[INFO] [stdout]   --> src/drawing.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub struct Cursor {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `from_config`, `travel`, `set_boundary`, and `to_tuple` are never used
[INFO] [stdout]   --> src/drawing.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 58 | impl<'a> Cursor {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 59 |     /// Create a cursor (current place on a drawing grid)
[INFO] [stdout] 60 |     pub fn from_config(config: &'a Config) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 75 |     pub fn travel(&mut self, dir: Direction) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 91 |     pub fn set_boundary(&mut self, bound: usize) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 99 |     pub fn to_tuple(&self) -> (&usize, &usize) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Direction` is never used
[INFO] [stdout]  --> src/drawing.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub enum Direction {
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Direction` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `turn` is never used
[INFO] [stdout]   --> src/drawing.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Direction {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 16 |     /// Return a Direction as if making a relative directional turn
[INFO] [stdout] 17 |     pub fn turn(&self, relative: Turn) -> Self {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Turn` is never used
[INFO] [stdout]   --> src/drawing.rs:45:10
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub enum Turn {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Turn` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cursor` is never constructed
[INFO] [stdout]   --> src/drawing.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub struct Cursor {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `from_config`, `travel`, `set_boundary`, and `to_tuple` are never used
[INFO] [stdout]   --> src/drawing.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 58 | impl<'a> Cursor {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 59 |     /// Create a cursor (current place on a drawing grid)
[INFO] [stdout] 60 |     pub fn from_config(config: &'a Config) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 75 |     pub fn travel(&mut self, dir: Direction) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 91 |     pub fn set_boundary(&mut self, bound: usize) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 99 |     pub fn to_tuple(&self) -> (&usize, &usize) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.52s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: svg v0.5.12
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "17556c615c87d4df7f7c2a0edea93f98bb89699945394498085d23faeeae3349", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17556c615c87d4df7f7c2a0edea93f98bb89699945394498085d23faeeae3349", kill_on_drop: false }`
[INFO] [stdout] 17556c615c87d4df7f7c2a0edea93f98bb89699945394498085d23faeeae3349