[INFO] fetching crate purrmitive 0.2.0...
[INFO] testing purrmitive-0.2.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate purrmitive 0.2.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate purrmitive 0.2.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate purrmitive 0.2.0
[INFO] finished tweaking crates.io crate purrmitive 0.2.0
[INFO] tweaked toml for crates.io crate purrmitive 0.2.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate purrmitive 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6b4735f07fefcb83c70f7b7240ed3e9c9aaeae4933343c6d3eefe946888b8f85
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6b4735f07fefcb83c70f7b7240ed3e9c9aaeae4933343c6d3eefe946888b8f85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b4735f07fefcb83c70f7b7240ed3e9c9aaeae4933343c6d3eefe946888b8f85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b4735f07fefcb83c70f7b7240ed3e9c9aaeae4933343c6d3eefe946888b8f85", kill_on_drop: false }`
[INFO] [stdout] 6b4735f07fefcb83c70f7b7240ed3e9c9aaeae4933343c6d3eefe946888b8f85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ad42dc56717ed5c041737fdb75420d7a1f0419f515977d8c0dc98755e385a46e
[INFO] running `Command { std: "docker" "start" "-a" "ad42dc56717ed5c041737fdb75420d7a1f0419f515977d8c0dc98755e385a46e", kill_on_drop: false }`
[INFO] [stderr]    Compiling dyn-fmt v0.3.0
[INFO] [stderr]    Compiling nsvg v0.5.1
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling deflate v0.8.6
[INFO] [stderr]    Compiling tiff v0.5.0
[INFO] [stderr]    Compiling crossbeam-channel v0.4.3
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling rayon-core v1.7.1
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rayon v1.3.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling png v0.16.7
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rand_distr v0.2.2
[INFO] [stderr]    Compiling jpeg-decoder v0.1.20
[INFO] [stderr]    Compiling image v0.23.8
[INFO] [stderr]    Compiling purrmitive v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::graphics::Point`
[INFO] [stdout]  --> src/graphics/scanline.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::graphics::Point;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `batch`
[INFO] [stdout]    --> src/core/mod.rs:303:13
[INFO] [stdout]     |
[INFO] [stdout] 303 |         for batch in 0..self.shape_number {
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_batch`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `r` is never read
[INFO] [stdout]    --> src/core/algo.rs:198:13
[INFO] [stdout]     |
[INFO] [stdout] 198 |     let mut r = 0;
[INFO] [stdout]     |             ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `g` is never read
[INFO] [stdout]    --> src/core/algo.rs:199:13
[INFO] [stdout]     |
[INFO] [stdout] 199 |     let mut g = 0;
[INFO] [stdout]     |             ^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `b` is never read
[INFO] [stdout]    --> src/core/algo.rs:200:13
[INFO] [stdout]     |
[INFO] [stdout] 200 |     let mut b = 0;
[INFO] [stdout]     |             ^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `lines` is never read
[INFO] [stdout]   --> src/core/hill_climb.rs:89:13
[INFO] [stdout]    |
[INFO] [stdout] 89 |     let mut lines = Vec::new();
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/graphics/raster.rs:139:9
[INFO] [stdout]     |
[INFO] [stdout] 139 |     let rhs = sy > 0;
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lhs`
[INFO] [stdout]    --> src/graphics/raster.rs:140:9
[INFO] [stdout]     |
[INFO] [stdout] 140 |     let lhs = sy < 0;
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_lhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `xy` is never read
[INFO] [stdout]    --> src/graphics/raster.rs:142:13
[INFO] [stdout]     |
[INFO] [stdout] 142 |     let mut xy: i32 = 0;
[INFO] [stdout]     |             ^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `dx` is never read
[INFO] [stdout]    --> src/graphics/raster.rs:143:13
[INFO] [stdout]     |
[INFO] [stdout] 143 |     let mut dx: f64 = 0.;
[INFO] [stdout]     |             ^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `dy` is never read
[INFO] [stdout]    --> src/graphics/raster.rs:144:13
[INFO] [stdout]     |
[INFO] [stdout] 144 |     let mut dy: f64 = 0.;
[INFO] [stdout]     |             ^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `err` is never read
[INFO] [stdout]    --> src/graphics/raster.rs:145:13
[INFO] [stdout]     |
[INFO] [stdout] 145 |     let mut err: f64 = 0.;
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `r` is never read
[INFO] [stdout]    --> src/graphics/raster.rs:242:13
[INFO] [stdout]     |
[INFO] [stdout] 242 |     let mut r: f64 = 0.;
[INFO] [stdout]     |             ^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/graphics/raster.rs:124:5
[INFO] [stdout]     |
[INFO] [stdout] 124 |     mut x1: i32,
[INFO] [stdout]     |     ----^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.65s
[INFO] running `Command { std: "docker" "inspect" "ad42dc56717ed5c041737fdb75420d7a1f0419f515977d8c0dc98755e385a46e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad42dc56717ed5c041737fdb75420d7a1f0419f515977d8c0dc98755e385a46e", kill_on_drop: false }`
[INFO] [stdout] ad42dc56717ed5c041737fdb75420d7a1f0419f515977d8c0dc98755e385a46e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dad51dc832a0ca44f5279335ace75bbe6552a2b83f46141e7dddba4167a5b395
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "dad51dc832a0ca44f5279335ace75bbe6552a2b83f46141e7dddba4167a5b395", kill_on_drop: false }`
[INFO] [stderr]    Compiling purrmitive v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::graphics::Point`
[INFO] [stdout]  --> src/graphics/scanline.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::graphics::Point;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `batch`
[INFO] [stdout]    --> src/core/mod.rs:303:13
[INFO] [stdout]     |
[INFO] [stdout] 303 |         for batch in 0..self.shape_number {
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_batch`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `r` is never read
[INFO] [stdout]    --> src/core/algo.rs:198:13
[INFO] [stdout]     |
[INFO] [stdout] 198 |     let mut r = 0;
[INFO] [stdout]     |             ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `g` is never read
[INFO] [stdout]    --> src/core/algo.rs:199:13
[INFO] [stdout]     |
[INFO] [stdout] 199 |     let mut g = 0;
[INFO] [stdout]     |             ^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `b` is never read
[INFO] [stdout]    --> src/core/algo.rs:200:13
[INFO] [stdout]     |
[INFO] [stdout] 200 |     let mut b = 0;
[INFO] [stdout]     |             ^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `lines` is never read
[INFO] [stdout]   --> src/core/hill_climb.rs:89:13
[INFO] [stdout]    |
[INFO] [stdout] 89 |     let mut lines = Vec::new();
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/graphics/raster.rs:139:9
[INFO] [stdout]     |
[INFO] [stdout] 139 |     let rhs = sy > 0;
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lhs`
[INFO] [stdout]    --> src/graphics/raster.rs:140:9
[INFO] [stdout]     |
[INFO] [stdout] 140 |     let lhs = sy < 0;
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_lhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `xy` is never read
[INFO] [stdout]    --> src/graphics/raster.rs:142:13
[INFO] [stdout]     |
[INFO] [stdout] 142 |     let mut xy: i32 = 0;
[INFO] [stdout]     |             ^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `dx` is never read
[INFO] [stdout]    --> src/graphics/raster.rs:143:13
[INFO] [stdout]     |
[INFO] [stdout] 143 |     let mut dx: f64 = 0.;
[INFO] [stdout]     |             ^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `dy` is never read
[INFO] [stdout]    --> src/graphics/raster.rs:144:13
[INFO] [stdout]     |
[INFO] [stdout] 144 |     let mut dy: f64 = 0.;
[INFO] [stdout]     |             ^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `err` is never read
[INFO] [stdout]    --> src/graphics/raster.rs:145:13
[INFO] [stdout]     |
[INFO] [stdout] 145 |     let mut err: f64 = 0.;
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `r` is never read
[INFO] [stdout]    --> src/graphics/raster.rs:242:13
[INFO] [stdout]     |
[INFO] [stdout] 242 |     let mut r: f64 = 0.;
[INFO] [stdout]     |             ^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/graphics/raster.rs:124:5
[INFO] [stdout]     |
[INFO] [stdout] 124 |     mut x1: i32,
[INFO] [stdout]     |     ----^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::graphics::Point`
[INFO] [stdout]  --> src/graphics/scanline.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::graphics::Point;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `batch`
[INFO] [stdout]    --> src/core/mod.rs:303:13
[INFO] [stdout]     |
[INFO] [stdout] 303 |         for batch in 0..self.shape_number {
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_batch`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `r` is never read
[INFO] [stdout]    --> src/core/algo.rs:198:13
[INFO] [stdout]     |
[INFO] [stdout] 198 |     let mut r = 0;
[INFO] [stdout]     |             ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `g` is never read
[INFO] [stdout]    --> src/core/algo.rs:199:13
[INFO] [stdout]     |
[INFO] [stdout] 199 |     let mut g = 0;
[INFO] [stdout]     |             ^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `b` is never read
[INFO] [stdout]    --> src/core/algo.rs:200:13
[INFO] [stdout]     |
[INFO] [stdout] 200 |     let mut b = 0;
[INFO] [stdout]     |             ^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `lines` is never read
[INFO] [stdout]   --> src/core/hill_climb.rs:89:13
[INFO] [stdout]    |
[INFO] [stdout] 89 |     let mut lines = Vec::new();
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]    --> src/graphics/raster.rs:139:9
[INFO] [stdout]     |
[INFO] [stdout] 139 |     let rhs = sy > 0;
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lhs`
[INFO] [stdout]    --> src/graphics/raster.rs:140:9
[INFO] [stdout]     |
[INFO] [stdout] 140 |     let lhs = sy < 0;
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_lhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `xy` is never read
[INFO] [stdout]    --> src/graphics/raster.rs:142:13
[INFO] [stdout]     |
[INFO] [stdout] 142 |     let mut xy: i32 = 0;
[INFO] [stdout]     |             ^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `dx` is never read
[INFO] [stdout]    --> src/graphics/raster.rs:143:13
[INFO] [stdout]     |
[INFO] [stdout] 143 |     let mut dx: f64 = 0.;
[INFO] [stdout]     |             ^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `dy` is never read
[INFO] [stdout]    --> src/graphics/raster.rs:144:13
[INFO] [stdout]     |
[INFO] [stdout] 144 |     let mut dy: f64 = 0.;
[INFO] [stdout]     |             ^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `err` is never read
[INFO] [stdout]    --> src/graphics/raster.rs:145:13
[INFO] [stdout]     |
[INFO] [stdout] 145 |     let mut err: f64 = 0.;
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `r` is never read
[INFO] [stdout]    --> src/graphics/raster.rs:242:13
[INFO] [stdout]     |
[INFO] [stdout] 242 |     let mut r: f64 = 0.;
[INFO] [stdout]     |             ^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/graphics/raster.rs:124:5
[INFO] [stdout]     |
[INFO] [stdout] 124 |     mut x1: i32,
[INFO] [stdout]     |     ----^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.41s
[INFO] running `Command { std: "docker" "inspect" "dad51dc832a0ca44f5279335ace75bbe6552a2b83f46141e7dddba4167a5b395", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dad51dc832a0ca44f5279335ace75bbe6552a2b83f46141e7dddba4167a5b395", kill_on_drop: false }`
[INFO] [stdout] dad51dc832a0ca44f5279335ace75bbe6552a2b83f46141e7dddba4167a5b395
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a6c641313f4a6a75a37950164f5f95f6ba2dcf55aedabbd77ba53a1124f15649
[INFO] running `Command { std: "docker" "start" "-a" "a6c641313f4a6a75a37950164f5f95f6ba2dcf55aedabbd77ba53a1124f15649", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `crate::graphics::Point`
[INFO] [stderr]  --> src/graphics/scanline.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::graphics::Point;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `batch`
[INFO] [stderr]    --> src/core/mod.rs:303:13
[INFO] [stderr]     |
[INFO] [stderr] 303 |         for batch in 0..self.shape_number {
[INFO] [stderr]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_batch`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/core/algo.rs:198:13
[INFO] [stderr]     |
[INFO] [stderr] 198 |     let mut r = 0;
[INFO] [stderr]     |             ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `g` is never read
[INFO] [stderr]    --> src/core/algo.rs:199:13
[INFO] [stderr]     |
[INFO] [stderr] 199 |     let mut g = 0;
[INFO] [stderr]     |             ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `b` is never read
[INFO] [stderr]    --> src/core/algo.rs:200:13
[INFO] [stderr]     |
[INFO] [stderr] 200 |     let mut b = 0;
[INFO] [stderr]     |             ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `lines` is never read
[INFO] [stderr]   --> src/core/hill_climb.rs:89:13
[INFO] [stderr]    |
[INFO] [stderr] 89 |     let mut lines = Vec::new();
[INFO] [stderr]    |             ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rhs`
[INFO] [stderr]    --> src/graphics/raster.rs:139:9
[INFO] [stderr]     |
[INFO] [stderr] 139 |     let rhs = sy > 0;
[INFO] [stderr]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lhs`
[INFO] [stderr]    --> src/graphics/raster.rs:140:9
[INFO] [stderr]     |
[INFO] [stderr] 140 |     let lhs = sy < 0;
[INFO] [stderr]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_lhs`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `xy` is never read
[INFO] [stderr]    --> src/graphics/raster.rs:142:13
[INFO] [stderr]     |
[INFO] [stderr] 142 |     let mut xy: i32 = 0;
[INFO] [stderr]     |             ^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `dx` is never read
[INFO] [stderr]    --> src/graphics/raster.rs:143:13
[INFO] [stderr]     |
[INFO] [stderr] 143 |     let mut dx: f64 = 0.;
[INFO] [stderr]     |             ^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `dy` is never read
[INFO] [stderr]    --> src/graphics/raster.rs:144:13
[INFO] [stderr]     |
[INFO] [stderr] 144 |     let mut dy: f64 = 0.;
[INFO] [stderr]     |             ^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `err` is never read
[INFO] [stderr]    --> src/graphics/raster.rs:145:13
[INFO] [stderr]     |
[INFO] [stderr] 145 |     let mut err: f64 = 0.;
[INFO] [stderr]     |             ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/graphics/raster.rs:242:13
[INFO] [stderr]     |
[INFO] [stderr] 242 |     let mut r: f64 = 0.;
[INFO] [stderr]     |             ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/graphics/raster.rs:124:5
[INFO] [stderr]     |
[INFO] [stderr] 124 |     mut x1: i32,
[INFO] [stderr]     |     ----^^
[INFO] [stderr]     |     |
[INFO] [stderr]     |     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `purrmitive` (lib) generated 14 warnings
[INFO] [stderr] warning: `purrmitive` (lib test) generated 14 warnings (14 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/purrmitive-8671cd1c233c1f75)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test core::algo::tests::test_parse_hex_color ... ok
[INFO] [stdout] test core::algo::tests::test_compute_color ... ok
[INFO] [stdout] test core::algo::tests::test_diff_partial ... ok
[INFO] [stdout] test core::algo::tests::test_diff_full ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests purrmitive
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a6c641313f4a6a75a37950164f5f95f6ba2dcf55aedabbd77ba53a1124f15649", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6c641313f4a6a75a37950164f5f95f6ba2dcf55aedabbd77ba53a1124f15649", kill_on_drop: false }`
[INFO] [stdout] a6c641313f4a6a75a37950164f5f95f6ba2dcf55aedabbd77ba53a1124f15649