[INFO] cloning repository https://github.com/enbyss/image-effects
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/enbyss/image-effects" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fenbyss%2Fimage-effects", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fenbyss%2Fimage-effects'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cdae7b3c2dfcbe5ba5d9cbc06d094b7d212d401f
[INFO] checking enbyss/image-effects against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fenbyss%2Fimage-effects" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/enbyss/image-effects 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/enbyss/image-effects
[INFO] finished tweaking git repo https://github.com/enbyss/image-effects
[INFO] tweaked toml for git repo https://github.com/enbyss/image-effects written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/enbyss/image-effects 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] warning: unused manifest key: package.maintenance
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded palette_derive v0.7.2
[INFO] [stderr]   Downloaded palette v0.7.2
[INFO] [stderr]   Downloaded exr v1.7.0
[INFO] [stderr]   Downloaded tiff v0.8.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 15647c112357f922d2550d8ad02c663ca13cd08b129257d0112ae21c83c170a0
[INFO] running `Command { std: "docker" "start" "-a" "15647c112357f922d2550d8ad02c663ca13cd08b129257d0112ae21c83c170a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15647c112357f922d2550d8ad02c663ca13cd08b129257d0112ae21c83c170a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15647c112357f922d2550d8ad02c663ca13cd08b129257d0112ae21c83c170a0", kill_on_drop: false }`
[INFO] [stdout] 15647c112357f922d2550d8ad02c663ca13cd08b129257d0112ae21c83c170a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 53168eb6a01c0d27ad5a9fc0f798991e3b3cc25e8cf9922a5204079db71abe61
[INFO] running `Command { std: "docker" "start" "-a" "53168eb6a01c0d27ad5a9fc0f798991e3b3cc25e8cf9922a5204079db71abe61", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.maintenance
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]    Compiling cc v1.0.81
[INFO] [stderr]    Compiling syn v2.0.27
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[INFO] [stderr]     Checking tokio v1.29.1
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling phf_shared v0.11.2
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking futures-util v0.3.28
[INFO] [stderr]     Checking nanorand v0.7.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking flate2 v1.0.26
[INFO] [stderr]    Compiling phf_generator v0.11.2
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]    Compiling matrixmultiply v0.3.7
[INFO] [stderr]     Checking rayon v1.7.0
[INFO] [stderr]    Compiling serde v1.0.180
[INFO] [stderr]     Checking num-integer v0.1.45
[INFO] [stderr]     Checking num-complex v0.4.3
[INFO] [stderr]    Compiling openssl-sys v0.9.90
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]     Checking num-bigint v0.4.3
[INFO] [stderr]     Checking fdeflate v0.3.0
[INFO] [stderr]    Compiling palette v0.7.2
[INFO] [stderr]     Checking bytemuck v1.13.1
[INFO] [stderr]    Compiling openssl v0.10.55
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]     Checking qoi v0.4.1
[INFO] [stderr]     Checking png v0.17.9
[INFO] [stderr]     Checking num-iter v0.1.43
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking fast-srgb8 v1.0.0
[INFO] [stderr]     Checking jpeg-decoder v0.3.0
[INFO] [stderr]     Checking num-rational v0.4.1
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]     Checking num v0.4.1
[INFO] [stderr]     Checking tokio-util v0.7.8
[INFO] [stderr]     Checking tiff v0.8.1
[INFO] [stderr]     Checking h2 v0.3.20
[INFO] [stderr]    Compiling pin-project-internal v1.1.2
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling phf_macros v0.11.2
[INFO] [stderr]    Compiling palette_derive v0.7.2
[INFO] [stderr]     Checking phf v0.11.2
[INFO] [stderr]     Checking pin-project v1.1.2
[INFO] [stderr]     Checking flume v0.10.14
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking exr v1.7.0
[INFO] [stderr]     Checking hyper v0.14.27
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking image v0.24.6
[INFO] [stderr]     Checking reqwest v0.11.18
[INFO] [stderr]     Checking image-effects v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `sum` is never used
[INFO] [stdout]  --> src/utils/numops.rs:1:18
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[inline] pub fn sum(nums: &[u8]) -> usize {
[INFO] [stdout]   |                  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `average` is never used
[INFO] [stdout]  --> src/utils/numops.rs:5:18
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[inline] pub fn average(nums: &[u8]) -> f64 {
[INFO] [stdout]   |                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/filter/raw.rs:85:42
[INFO] [stdout]    |
[INFO] [stdout] 85 |     let mut gradient = Vec::from(gradient.clone());
[INFO] [stdout]    |                                          ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `[(U, f32)]` does not implement `Clone`, so calling `clone` on `&[(U, f32)]` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sum` is never used
[INFO] [stdout]  --> src/utils/numops.rs:1:18
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[inline] pub fn sum(nums: &[u8]) -> usize {
[INFO] [stdout]   |                  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `average` is never used
[INFO] [stdout]  --> src/utils/numops.rs:5:18
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[inline] pub fn average(nums: &[u8]) -> f64 {
[INFO] [stdout]   |                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/filter/raw.rs:85:42
[INFO] [stdout]    |
[INFO] [stdout] 85 |     let mut gradient = Vec::from(gradient.clone());
[INFO] [stdout]    |                                          ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `[(U, f32)]` does not implement `Clone`, so calling `clone` on `&[(U, f32)]` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 56.57s
[INFO] running `Command { std: "docker" "inspect" "53168eb6a01c0d27ad5a9fc0f798991e3b3cc25e8cf9922a5204079db71abe61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53168eb6a01c0d27ad5a9fc0f798991e3b3cc25e8cf9922a5204079db71abe61", kill_on_drop: false }`
[INFO] [stdout] 53168eb6a01c0d27ad5a9fc0f798991e3b3cc25e8cf9922a5204079db71abe61