[INFO] fetching crate rect-iter 0.3.0...
[INFO] checking rect-iter-0.3.0 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate rect-iter 0.3.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate rect-iter 0.3.0 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rect-iter 0.3.0
[INFO] finished tweaking crates.io crate rect-iter 0.3.0
[INFO] tweaked toml for crates.io crate rect-iter 0.3.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded scoped_threadpool v0.1.9
[INFO] [stderr]   Downloaded miniz_oxide v0.3.7
[INFO] [stderr]   Downloaded weezl v0.1.5
[INFO] [stderr]   Downloaded deflate v0.8.6
[INFO] [stderr]   Downloaded euclid v0.22.6
[INFO] [stderr]   Downloaded color_quant v1.1.0
[INFO] [stderr]   Downloaded gif v0.11.2
[INFO] [stderr]   Downloaded jpeg-decoder v0.1.22
[INFO] [stderr]   Downloaded bytemuck v1.7.2
[INFO] [stderr]   Downloaded png v0.16.8
[INFO] [stderr]   Downloaded image v0.23.14
[INFO] [stderr]   Downloaded tiff v0.6.1
[INFO] [stderr]   Downloaded tuple-map v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e713afc1da1586d0a4accb587339015594824b22bc98d31baf47b5656431447a
[INFO] running `Command { std: "docker" "start" "-a" "e713afc1da1586d0a4accb587339015594824b22bc98d31baf47b5656431447a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e713afc1da1586d0a4accb587339015594824b22bc98d31baf47b5656431447a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e713afc1da1586d0a4accb587339015594824b22bc98d31baf47b5656431447a", kill_on_drop: false }`
[INFO] [stdout] e713afc1da1586d0a4accb587339015594824b22bc98d31baf47b5656431447a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ecf8fa543dda4c6438d6930bc51f4595de387c193299822fdb5809206dce16ea
[INFO] running `Command { std: "docker" "start" "-a" "ecf8fa543dda4c6438d6930bc51f4595de387c193299822fdb5809206dce16ea", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking tuple-map v0.3.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking euclid v0.22.6
[INFO] [stderr]     Checking rect-iter v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `y_range`
[INFO] [stdout]    --> src/lib.rs:485:5
[INFO] [stdout]     |
[INFO] [stdout] 485 |     y_range: Range<T>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `y_range`
[INFO] [stdout]    --> src/lib.rs:485:5
[INFO] [stdout]     |
[INFO] [stdout] 485 |     y_range: Range<T>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021.
[INFO] [stdout]    --> src/lib.rs:825:32
[INFO] [stdout]     |
[INFO] [stdout] 825 |         for (&c, t) in correct.into_iter().rev().zip(r.into_iter().rev()) {
[INFO] [stdout]     |                                ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(array_into_iter)]` on by default
[INFO] [stdout]     = warning: this changes meaning in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 825 |         for (&c, t) in correct.iter().rev().zip(r.into_iter().rev()) {
[INFO] [stdout]     |                                ~~~~
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]     |
[INFO] [stdout] 825 |         for (&c, t) in IntoIterator::into_iter(correct).rev().zip(r.into_iter().rev()) {
[INFO] [stdout]     |                        ++++++++++++++++++++++++       ~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.89s
[INFO] running `Command { std: "docker" "inspect" "ecf8fa543dda4c6438d6930bc51f4595de387c193299822fdb5809206dce16ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecf8fa543dda4c6438d6930bc51f4595de387c193299822fdb5809206dce16ea", kill_on_drop: false }`
[INFO] [stdout] ecf8fa543dda4c6438d6930bc51f4595de387c193299822fdb5809206dce16ea