[INFO] fetching crate image-effects 0.1.0...
[INFO] checking image-effects-0.1.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate image-effects 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate image-effects 0.1.0 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate image-effects 0.1.0
[INFO] finished tweaking crates.io crate image-effects 0.1.0
[INFO] tweaked toml for crates.io crate image-effects 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 181 packages to latest compatible versions
[INFO] [stderr]       Adding base64 v0.21.7 (available: v0.22.1)
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[INFO] [stderr]       Adding image v0.24.9 (available: v0.25.2)
[INFO] [stderr]       Adding linux-raw-sys v0.4.14 (available: v0.6.5)
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[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 67d2a4c111db6a73eee04d0d9a66ad91abe1f3349a7a6f48c28696eac0374009
[INFO] running `Command { std: "docker" "start" "-a" "67d2a4c111db6a73eee04d0d9a66ad91abe1f3349a7a6f48c28696eac0374009", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "67d2a4c111db6a73eee04d0d9a66ad91abe1f3349a7a6f48c28696eac0374009", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67d2a4c111db6a73eee04d0d9a66ad91abe1f3349a7a6f48c28696eac0374009", kill_on_drop: false }`
[INFO] [stdout] 67d2a4c111db6a73eee04d0d9a66ad91abe1f3349a7a6f48c28696eac0374009
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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 -Dtail_expr_drop_order" "-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19aa810e969d2aa398b0bf8b9c5996f0167e5a6f01334761c25b9284787d2614
[INFO] running `Command { std: "docker" "start" "-a" "19aa810e969d2aa398b0bf8b9c5996f0167e5a6f01334761c25b9284787d2614", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.159
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[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 59.66s
[INFO] running `Command { std: "docker" "inspect" "19aa810e969d2aa398b0bf8b9c5996f0167e5a6f01334761c25b9284787d2614", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19aa810e969d2aa398b0bf8b9c5996f0167e5a6f01334761c25b9284787d2614", kill_on_drop: false }`
[INFO] [stdout] 19aa810e969d2aa398b0bf8b9c5996f0167e5a6f01334761c25b9284787d2614