[INFO] cloning repository https://github.com/lindsayloughlin/rust-render
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lindsayloughlin/rust-render" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flindsayloughlin%2Frust-render", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flindsayloughlin%2Frust-render'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e17fe91258bbcb44cb29a0ad44c85c8cb3c4811d
[INFO] checking lindsayloughlin/rust-render against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flindsayloughlin%2Frust-render" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lindsayloughlin/rust-render 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/lindsayloughlin/rust-render
[INFO] finished tweaking git repo https://github.com/lindsayloughlin/rust-render
[INFO] tweaked toml for git repo https://github.com/lindsayloughlin/rust-render written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/lindsayloughlin/rust-render 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] d0a65be6073e0f7e910c20fd4f0738c1bd5f381aaefb85bfd75515b43e838e40
[INFO] running `Command { std: "docker" "start" "-a" "d0a65be6073e0f7e910c20fd4f0738c1bd5f381aaefb85bfd75515b43e838e40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0a65be6073e0f7e910c20fd4f0738c1bd5f381aaefb85bfd75515b43e838e40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0a65be6073e0f7e910c20fd4f0738c1bd5f381aaefb85bfd75515b43e838e40", kill_on_drop: false }`
[INFO] [stdout] d0a65be6073e0f7e910c20fd4f0738c1bd5f381aaefb85bfd75515b43e838e40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] c03c9485946958a3cb5ffbb3aa21348d2ec6d7caa5f8d8aafeafbdc7f7f146f6
[INFO] running `Command { std: "docker" "start" "-a" "c03c9485946958a3cb5ffbb3aa21348d2ec6d7caa5f8d8aafeafbdc7f7f146f6", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling crc32fast v1.3.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking weezl v0.1.5
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking bytemuck v1.7.3
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking gif v0.11.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking raster v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `GenericImageView`, `ImageBuffer`, `RgbaImage`, `save_buffer_with_format`
[INFO] [stdout]  --> src/main.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 | use image::{GenericImageView, ImageBuffer, RgbImage, RgbaImage, Rgb, save_buffer_with_format};
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^            ^^^^^^^^^       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `GenericImageView`, `ImageBuffer`, `RgbaImage`, `save_buffer_with_format`
[INFO] [stdout]  --> src/main.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 | use image::{GenericImageView, ImageBuffer, RgbImage, RgbaImage, Rgb, save_buffer_with_format};
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^            ^^^^^^^^^       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:112:17
[INFO] [stdout]     |
[INFO] [stdout] 112 |             let mut swap = p0;
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:112:17
[INFO] [stdout]     |
[INFO] [stdout] 112 |             let mut swap = p0;
[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: function `DrawIntoImage` is never used
[INFO] [stdout]   --> src/main.rs:81:4
[INFO] [stdout]    |
[INFO] [stdout] 81 | fn DrawIntoImage() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `Interpolate` should have a snake case name
[INFO] [stdout]   --> src/main.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn Interpolate(i0 : i32, d0: i32, i1: i32, d1 : i32 ) -> Vec<i32> {
[INFO] [stdout]    |    ^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `interpolate`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `valOut` should have a snake case name
[INFO] [stdout]   --> src/main.rs:17:13
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let mut valOut = Vec::new();
[INFO] [stdout]    |             ^^^^^^ help: convert the identifier to snake case: `val_out`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `DrawIntoImage` should have a snake case name
[INFO] [stdout]   --> src/main.rs:81:4
[INFO] [stdout]    |
[INFO] [stdout] 81 | fn DrawIntoImage() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^ help: convert the identifier to snake case: `draw_into_image`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `DrawLine` should have a snake case name
[INFO] [stdout]   --> src/main.rs:89:4
[INFO] [stdout]    |
[INFO] [stdout] 89 | fn DrawLine(pa : Point, pb : Point, img : &mut RgbImage) {
[INFO] [stdout]    |    ^^^^^^^^ help: convert the identifier to snake case: `draw_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `DrawIntoImage` is never used
[INFO] [stdout]   --> src/main.rs:81:4
[INFO] [stdout]    |
[INFO] [stdout] 81 | fn DrawIntoImage() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `Interpolate` should have a snake case name
[INFO] [stdout]   --> src/main.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn Interpolate(i0 : i32, d0: i32, i1: i32, d1 : i32 ) -> Vec<i32> {
[INFO] [stdout]    |    ^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `interpolate`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `valOut` should have a snake case name
[INFO] [stdout]   --> src/main.rs:17:13
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let mut valOut = Vec::new();
[INFO] [stdout]    |             ^^^^^^ help: convert the identifier to snake case: `val_out`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `DrawIntoImage` should have a snake case name
[INFO] [stdout]   --> src/main.rs:81:4
[INFO] [stdout]    |
[INFO] [stdout] 81 | fn DrawIntoImage() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^ help: convert the identifier to snake case: `draw_into_image`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `DrawLine` should have a snake case name
[INFO] [stdout]   --> src/main.rs:89:4
[INFO] [stdout]    |
[INFO] [stdout] 89 | fn DrawLine(pa : Point, pb : Point, img : &mut RgbImage) {
[INFO] [stdout]    |    ^^^^^^^^ help: convert the identifier to snake case: `draw_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:150:5
[INFO] [stdout]     |
[INFO] [stdout] 150 |     img.save("lineimage.png");
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 150 |     let _ = img.save("lineimage.png");
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:150:5
[INFO] [stdout]     |
[INFO] [stdout] 150 |     img.save("lineimage.png");
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 150 |     let _ = img.save("lineimage.png");
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.16s
[INFO] running `Command { std: "docker" "inspect" "c03c9485946958a3cb5ffbb3aa21348d2ec6d7caa5f8d8aafeafbdc7f7f146f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c03c9485946958a3cb5ffbb3aa21348d2ec6d7caa5f8d8aafeafbdc7f7f146f6", kill_on_drop: false }`
[INFO] [stdout] c03c9485946958a3cb5ffbb3aa21348d2ec6d7caa5f8d8aafeafbdc7f7f146f6