[INFO] fetching crate sknife 0.2.2...
[INFO] testing sknife-0.2.2 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate sknife 0.2.2 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate sknife 0.2.2
[INFO] finished tweaking crates.io crate sknife 0.2.2
[INFO] tweaked toml for crates.io crate sknife 0.2.2 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sknife 0.2.2 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 016f1f3332e1f89b50a62493cbe30dae5fa86ea36193cd38caf8facfd158876e
[INFO] running `Command { std: "docker" "start" "-a" "016f1f3332e1f89b50a62493cbe30dae5fa86ea36193cd38caf8facfd158876e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "016f1f3332e1f89b50a62493cbe30dae5fa86ea36193cd38caf8facfd158876e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "016f1f3332e1f89b50a62493cbe30dae5fa86ea36193cd38caf8facfd158876e", kill_on_drop: false }`
[INFO] [stdout] 016f1f3332e1f89b50a62493cbe30dae5fa86ea36193cd38caf8facfd158876e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 904fb9929a43d19ed9cb57d8112f3506e7e882d01c6f3cdca8e318080c246fcd
[INFO] running `Command { std: "docker" "start" "-a" "904fb9929a43d19ed9cb57d8112f3506e7e882d01c6f3cdca8e318080c246fcd", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]    Compiling sknife v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/collection/any.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/collection/count.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/collection/find.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/collection/flatmap.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std`
[INFO] [stdout]  --> src/collection/zip.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std;
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `#![crate_name]` attribute can only be used at the crate root
[INFO] [stdout]  --> src/collection/any.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![crate_name = "sknife"]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `#![crate_name]` attribute can only be used at the crate root
[INFO] [stdout]  --> src/collection/count.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![crate_name = "sknife"]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `#![crate_name]` attribute can only be used at the crate root
[INFO] [stdout]  --> src/collection/find.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![crate_name = "sknife"]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `#![crate_name]` attribute can only be used at the crate root
[INFO] [stdout]  --> src/collection/flatmap.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![crate_name = "sknife"]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `#![crate_name]` attribute can only be used at the crate root
[INFO] [stdout]  --> src/collection/map.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![crate_name = "sknife"]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `#![crate_name]` attribute can only be used at the crate root
[INFO] [stdout]  --> src/collection/reduce.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![crate_name = "sknife"]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `#![crate_name]` attribute can only be used at the crate root
[INFO] [stdout]  --> src/collection/zip.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![crate_name = "sknife"]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "904fb9929a43d19ed9cb57d8112f3506e7e882d01c6f3cdca8e318080c246fcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "904fb9929a43d19ed9cb57d8112f3506e7e882d01c6f3cdca8e318080c246fcd", kill_on_drop: false }`
[INFO] [stdout] 904fb9929a43d19ed9cb57d8112f3506e7e882d01c6f3cdca8e318080c246fcd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f4fbdc93a94d80358528ee89728a2905c294b69d133e3a80a7cada433afaafc
[INFO] running `Command { std: "docker" "start" "-a" "8f4fbdc93a94d80358528ee89728a2905c294b69d133e3a80a7cada433afaafc", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/collection/any.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling sknife v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/collection/count.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/collection/find.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/collection/flatmap.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std`
[INFO] [stdout]  --> src/collection/zip.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std;
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `#![crate_name]` attribute can only be used at the crate root
[INFO] [stdout]  --> src/collection/any.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![crate_name = "sknife"]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `#![crate_name]` attribute can only be used at the crate root
[INFO] [stdout]  --> src/collection/count.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![crate_name = "sknife"]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `#![crate_name]` attribute can only be used at the crate root
[INFO] [stdout]  --> src/collection/find.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![crate_name = "sknife"]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `#![crate_name]` attribute can only be used at the crate root
[INFO] [stdout]  --> src/collection/flatmap.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![crate_name = "sknife"]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `#![crate_name]` attribute can only be used at the crate root
[INFO] [stdout]  --> src/collection/map.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![crate_name = "sknife"]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `#![crate_name]` attribute can only be used at the crate root
[INFO] [stdout]  --> src/collection/reduce.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![crate_name = "sknife"]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `#![crate_name]` attribute can only be used at the crate root
[INFO] [stdout]  --> src/collection/zip.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![crate_name = "sknife"]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std`
[INFO] [stdout]  --> src/collection/zip.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std;
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `#![crate_name]` attribute can only be used at the crate root
[INFO] [stdout]  --> src/collection/any.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![crate_name = "sknife"]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `#![crate_name]` attribute can only be used at the crate root
[INFO] [stdout]  --> src/collection/count.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![crate_name = "sknife"]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `#![crate_name]` attribute can only be used at the crate root
[INFO] [stdout]  --> src/collection/find.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![crate_name = "sknife"]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `#![crate_name]` attribute can only be used at the crate root
[INFO] [stdout]  --> src/collection/flatmap.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![crate_name = "sknife"]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `#![crate_name]` attribute can only be used at the crate root
[INFO] [stdout]  --> src/collection/map.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![crate_name = "sknife"]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `#![crate_name]` attribute can only be used at the crate root
[INFO] [stdout]  --> src/collection/reduce.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![crate_name = "sknife"]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `#![crate_name]` attribute can only be used at the crate root
[INFO] [stdout]  --> src/collection/zip.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![crate_name = "sknife"]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> tests/collections_any.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut list = vec![1, 2, 3, 4];
[INFO] [stdout]   |         ----^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> tests/collections_find.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut list = vec![1, 3, 4, 7, 3, 9];
[INFO] [stdout]   |         ----^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collection/any.rs:44:13
[INFO] [stdout]    |
[INFO] [stdout] 44 |         let mut list = vec![];
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collection/any.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |         let mut list = vec![1, 2, 3, 4];
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collection/count.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 32 |         let mut list: Vec<i32> = vec![];
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collection/count.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let mut list = vec![1, 2, 3, 4];
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collection/find.rs:43:13
[INFO] [stdout]    |
[INFO] [stdout] 43 |         let mut list = vec![];
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collection/find.rs:53:13
[INFO] [stdout]    |
[INFO] [stdout] 53 |         let mut list = vec![1, 2, 3, 4];
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "8f4fbdc93a94d80358528ee89728a2905c294b69d133e3a80a7cada433afaafc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f4fbdc93a94d80358528ee89728a2905c294b69d133e3a80a7cada433afaafc", kill_on_drop: false }`
[INFO] [stdout] 8f4fbdc93a94d80358528ee89728a2905c294b69d133e3a80a7cada433afaafc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c6d4cd66aee3b88156d4822ae0246882a99eac97fdf0f319eb0dbacd05bcbfaf
[INFO] running `Command { std: "docker" "start" "-a" "c6d4cd66aee3b88156d4822ae0246882a99eac97fdf0f319eb0dbacd05bcbfaf", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/collection/any.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/collection/count.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/collection/find.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/collection/flatmap.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std`
[INFO] [stderr]  --> src/collection/zip.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std;
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the `#![crate_name]` attribute can only be used at the crate root
[INFO] [stderr]  --> src/collection/any.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![crate_name = "sknife"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the `#![crate_name]` attribute can only be used at the crate root
[INFO] [stderr]  --> src/collection/count.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![crate_name = "sknife"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the `#![crate_name]` attribute can only be used at the crate root
[INFO] [stderr]  --> src/collection/find.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![crate_name = "sknife"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the `#![crate_name]` attribute can only be used at the crate root
[INFO] [stderr]  --> src/collection/flatmap.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![crate_name = "sknife"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the `#![crate_name]` attribute can only be used at the crate root
[INFO] [stderr]  --> src/collection/map.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![crate_name = "sknife"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the `#![crate_name]` attribute can only be used at the crate root
[INFO] [stderr]  --> src/collection/reduce.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![crate_name = "sknife"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the `#![crate_name]` attribute can only be used at the crate root
[INFO] [stderr]  --> src/collection/zip.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![crate_name = "sknife"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `sknife` (lib) generated 12 warnings (run `cargo fix --lib -p sknife` to apply 5 suggestions)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> tests/collections_any.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let mut list = vec![1, 2, 3, 4];
[INFO] [stderr]   |         ----^^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `sknife` (test "collections_any") generated 1 warning (run `cargo fix --test "collections_any" -p sknife` to apply 1 suggestion)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> tests/collections_find.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let mut list = vec![1, 3, 4, 7, 3, 9];
[INFO] [stderr]   |         ----^^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std`
[INFO] [stderr]  --> src/collection/zip.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std;
[INFO] [stderr]   |     ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/collection/any.rs:44:13
[INFO] [stderr]    |
[INFO] [stderr] 44 |         let mut list = vec![];
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/collection/any.rs:54:13
[INFO] [stderr]    |
[INFO] [stderr] 54 |         let mut list = vec![1, 2, 3, 4];
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/collection/count.rs:32:13
[INFO] [stderr]    |
[INFO] [stderr] 32 |         let mut list: Vec<i32> = vec![];
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/collection/count.rs:38:13
[INFO] [stderr]    |
[INFO] [stderr] 38 |         let mut list = vec![1, 2, 3, 4];
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/collection/find.rs:43:13
[INFO] [stderr]    |
[INFO] [stderr] 43 |         let mut list = vec![];
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/collection/find.rs:53:13
[INFO] [stderr]    |
[INFO] [stderr] 53 |         let mut list = vec![1, 2, 3, 4];
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: `sknife` (test "collections_find") generated 1 warning (run `cargo fix --test "collections_find" -p sknife` to apply 1 suggestion)
[INFO] [stderr] warning: `sknife` (lib test) generated 14 warnings (7 duplicates) (run `cargo fix --lib -p sknife --tests` to apply 7 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/sknife-5dca7266c20866dc)
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test collection::any::tests::any_list ... ok
[INFO] [stdout] test collection::count::tests::count_empty_list ... ok
[INFO] [stdout] test collection::find::tests::find_empty_list ... ok
[INFO] [stdout] test collection::find::tests::find_in_list ... ok
[INFO] [stdout] test collection::flatmap::tests::flatmap_empty_list ... ok
[INFO] [stdout] test collection::flatmap::tests::flatmap_list ... ok
[INFO] [stdout] test collection::map::tests::map_empty_list ... ok
[INFO] [stdout] test collection::reduce::tests::reduce_fact ... ok
[INFO] [stdout] test collection::zip::tests::zip_empty_lists ... ok
[INFO] [stdout] test collection::zip::tests::zip_simple_lists ... ok
[INFO] [stdout] test collection::zip::tests::zip_unequal_lists ... ok
[INFO] [stdout] test collection::any::tests::any_empty_list ... ok
[INFO] [stdout] test collection::map::tests::map_simple_list ... ok
[INFO] [stdout] test collection::reduce::tests::reduce_sum ... ok
[INFO] [stdout] test collection::count::tests::count_of_list ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.12s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/collections_any.rs (/opt/rustwide/target/debug/deps/collections_any-6bb7bd789bf3c984)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test is_any_mod_two ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/collections_find.rs (/opt/rustwide/target/debug/deps/collections_find-a0720ab5d2418ef0)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test find_greater_than_five ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sknife
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test src/collection/any.rs - collection::any::any (line 21) ... ok
[INFO] [stdout] test src/collection/count.rs - collection::count::count (line 11) ... ok
[INFO] [stdout] test src/collection/zip.rs - collection::zip::zip (line 24) ... ok
[INFO] [stdout] test src/collection/find.rs - collection::find::find (line 21) ... ok
[INFO] [stdout] test src/collection/count.rs - collection::count::count (line 19) ... ok
[INFO] [stdout] test src/collection/map.rs - collection::map::map (line 12) ... ok
[INFO] [stdout] test src/collection/find.rs - collection::find::find (line 12) ... ok
[INFO] [stdout] test src/collection/flatmap.rs - collection::flatmap::flatmap (line 12) ... ok
[INFO] [stdout] test src/collection/flatmap.rs - collection::flatmap::flatmap (line 21) ... ok
[INFO] [stdout] test src/collection/map.rs - collection::map::map (line 21) ... ok
[INFO] [stdout] test src/collection/reduce.rs - collection::reduce::reduce (line 14) ... ok
[INFO] [stdout] test src/collection/zip.rs - collection::zip::zip (line 15) ... ok
[INFO] [stdout] test src/collection/any.rs - collection::any::any (line 12) ... ok
[INFO] [stdout] test src/collection/reduce.rs - collection::reduce::reduce (line 24) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.76s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c6d4cd66aee3b88156d4822ae0246882a99eac97fdf0f319eb0dbacd05bcbfaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6d4cd66aee3b88156d4822ae0246882a99eac97fdf0f319eb0dbacd05bcbfaf", kill_on_drop: false }`
[INFO] [stdout] c6d4cd66aee3b88156d4822ae0246882a99eac97fdf0f319eb0dbacd05bcbfaf
