[INFO] cloning repository https://github.com/iammer/combine_k
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iammer/combine_k" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiammer%2Fcombine_k", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiammer%2Fcombine_k'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f16ebeb319882f88ca78bdd791b55aa296399c3d
[INFO] checking iammer/combine_k/f16ebeb319882f88ca78bdd791b55aa296399c3d against master#cb40c25f6aebb637163d26bf76a680ed6e5d1eda for pr-156157
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiammer%2Fcombine_k" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/iammer/combine_k
[INFO] finished tweaking git repo https://github.com/iammer/combine_k
[INFO] tweaked toml for git repo https://github.com/iammer/combine_k written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/iammer/combine_k on toolchain cb40c25f6aebb637163d26bf76a680ed6e5d1eda
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cb40c25f6aebb637163d26bf76a680ed6e5d1eda" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/iammer/combine_k 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" "+cb40c25f6aebb637163d26bf76a680ed6e5d1eda" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fuchsia-zircon v0.2.1
[INFO] [stderr]   Downloaded rand v0.3.18
[INFO] [stderr]   Downloaded redox_syscall v0.1.32
[INFO] [stderr]   Downloaded fuchsia-zircon-sys v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+cb40c25f6aebb637163d26bf76a680ed6e5d1eda" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f7be756cce0bef1f42667c3e2fd0b2376cd7498d3dd8b0a5b35c612f1abf9b54
[INFO] running `Command { std: "docker" "start" "-a" "f7be756cce0bef1f42667c3e2fd0b2376cd7498d3dd8b0a5b35c612f1abf9b54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7be756cce0bef1f42667c3e2fd0b2376cd7498d3dd8b0a5b35c612f1abf9b54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7be756cce0bef1f42667c3e2fd0b2376cd7498d3dd8b0a5b35c612f1abf9b54", kill_on_drop: false }`
[INFO] [stdout] f7be756cce0bef1f42667c3e2fd0b2376cd7498d3dd8b0a5b35c612f1abf9b54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+cb40c25f6aebb637163d26bf76a680ed6e5d1eda" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c4e201a49b60fb815e19ca7f39c31c44b200482139ee848aba5aa44de95e769
[INFO] running `Command { std: "docker" "start" "-a" "2c4e201a49b60fb815e19ca7f39c31c44b200482139ee848aba5aa44de95e769", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]     Checking rand v0.3.18
[INFO] [stderr]     Checking termion v1.5.1
[INFO] [stderr]     Checking combine_k v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/board/mod.rs:190:18
[INFO] [stdout]     |
[INFO] [stdout] 190 |         Box::new((0..LENGTH))
[INFO] [stdout]     |                  ^         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 190 -         Box::new((0..LENGTH))
[INFO] [stdout] 190 +         Box::new(0..LENGTH )
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/board/mod.rs:190:18
[INFO] [stdout]     |
[INFO] [stdout] 190 |         Box::new((0..LENGTH))
[INFO] [stdout]     |                  ^         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 190 -         Box::new((0..LENGTH))
[INFO] [stdout] 190 +         Box::new(0..LENGTH )
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/board/mod.rs:188:41
[INFO] [stdout]     |
[INFO] [stdout] 188 | fn scan_sequence(dir: Direction) -> Box<Iterator<Item=usize>> {
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 188 | fn scan_sequence(dir: Direction) -> Box<dyn Iterator<Item=usize>> {
[INFO] [stdout]     |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/board/mod.rs:188:41
[INFO] [stdout]     |
[INFO] [stdout] 188 | fn scan_sequence(dir: Direction) -> Box<Iterator<Item=usize>> {
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 188 | fn scan_sequence(dir: Direction) -> Box<dyn Iterator<Item=usize>> {
[INFO] [stdout]     |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "2c4e201a49b60fb815e19ca7f39c31c44b200482139ee848aba5aa44de95e769", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c4e201a49b60fb815e19ca7f39c31c44b200482139ee848aba5aa44de95e769", kill_on_drop: false }`
[INFO] [stdout] 2c4e201a49b60fb815e19ca7f39c31c44b200482139ee848aba5aa44de95e769
