[INFO] fetching crate cashmere 0.0.1...
[INFO] testing cashmere-0.0.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate cashmere 0.0.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate cashmere 0.0.1
[INFO] finished tweaking crates.io crate cashmere 0.0.1
[INFO] tweaked toml for crates.io crate cashmere 0.0.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cashmere 0.0.1 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 3 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f50e5e71e31bf37868a7e5232c9818c5dd3e1d88522f8e86fb1e4d6b868400db
[INFO] running `Command { std: "docker" "start" "-a" "f50e5e71e31bf37868a7e5232c9818c5dd3e1d88522f8e86fb1e4d6b868400db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f50e5e71e31bf37868a7e5232c9818c5dd3e1d88522f8e86fb1e4d6b868400db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f50e5e71e31bf37868a7e5232c9818c5dd3e1d88522f8e86fb1e4d6b868400db", kill_on_drop: false }`
[INFO] [stdout] f50e5e71e31bf37868a7e5232c9818c5dd3e1d88522f8e86fb1e4d6b868400db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e497d3df07f257406fb5e6825f69dcc41e1f23246aece30f8b22db8cbdc5a8e0
[INFO] running `Command { std: "docker" "start" "-a" "e497d3df07f257406fb5e6825f69dcc41e1f23246aece30f8b22db8cbdc5a8e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling order-stat v0.1.3
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling cashmere v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `validate` is never used
[INFO] [stdout]   --> src/node.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 74 | pub trait Tree: IntoIterator<Item = <Self::Node as Ownable>::Ownership> {
[INFO] [stdout]    |           ---- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 80 |     fn validate(&self);
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CancelInsert` is never constructed
[INFO] [stdout]    --> src/node.rs:378:12
[INFO] [stdout]     |
[INFO] [stdout] 378 | pub struct CancelInsert;
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SwapValue` is never constructed
[INFO] [stdout]    --> src/node.rs:383:12
[INFO] [stdout]     |
[INFO] [stdout] 383 | pub struct SwapValue;
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ViewingBinaryTreeIter` is never constructed
[INFO] [stdout]    --> src/node.rs:937:12
[INFO] [stdout]     |
[INFO] [stdout] 937 | pub struct ViewingBinaryTreeIter<'a, Node: BinaryNode> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/node.rs:957:12
[INFO] [stdout]     |
[INFO] [stdout] 953 | / impl<'a, Node> ViewingBinaryTreeIter<'a, Node>
[INFO] [stdout] 954 | | where
[INFO] [stdout] 955 | |     Node: BinaryNode + Ownable,
[INFO] [stdout]     | |_______________________________- associated function in this implementation
[INFO] [stdout] 956 |   {
[INFO] [stdout] 957 |       pub fn new<'b: 'a, T>(tree: &'b T) -> Self
[INFO] [stdout]     |              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.74s
[INFO] running `Command { std: "docker" "inspect" "e497d3df07f257406fb5e6825f69dcc41e1f23246aece30f8b22db8cbdc5a8e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e497d3df07f257406fb5e6825f69dcc41e1f23246aece30f8b22db8cbdc5a8e0", kill_on_drop: false }`
[INFO] [stdout] e497d3df07f257406fb5e6825f69dcc41e1f23246aece30f8b22db8cbdc5a8e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 56e016f0deb5480b76c7487f7fca3d3cd53ab565916284a05d5ca858537e6839
[INFO] running `Command { std: "docker" "start" "-a" "56e016f0deb5480b76c7487f7fca3d3cd53ab565916284a05d5ca858537e6839", kill_on_drop: false }`
[INFO] [stdout] warning: method `validate` is never used
[INFO] [stdout]   --> src/node.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 74 | pub trait Tree: IntoIterator<Item = <Self::Node as Ownable>::Ownership> {
[INFO] [stdout]    |           ---- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 80 |     fn validate(&self);
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CancelInsert` is never constructed
[INFO] [stdout]    --> src/node.rs:378:12
[INFO] [stdout]     |
[INFO] [stdout] 378 | pub struct CancelInsert;
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling cashmere v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `SwapValue` is never constructed
[INFO] [stdout]    --> src/node.rs:383:12
[INFO] [stdout]     |
[INFO] [stdout] 383 | pub struct SwapValue;
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ViewingBinaryTreeIter` is never constructed
[INFO] [stdout]    --> src/node.rs:937:12
[INFO] [stdout]     |
[INFO] [stdout] 937 | pub struct ViewingBinaryTreeIter<'a, Node: BinaryNode> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/node.rs:957:12
[INFO] [stdout]     |
[INFO] [stdout] 953 | / impl<'a, Node> ViewingBinaryTreeIter<'a, Node>
[INFO] [stdout] 954 | | where
[INFO] [stdout] 955 | |     Node: BinaryNode + Ownable,
[INFO] [stdout]     | |_______________________________- associated function in this implementation
[INFO] [stdout] 956 |   {
[INFO] [stdout] 957 |       pub fn new<'b: 'a, T>(tree: &'b T) -> Self
[INFO] [stdout]     |              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `validate` is never used
[INFO] [stdout]   --> src/node.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 74 | pub trait Tree: IntoIterator<Item = <Self::Node as Ownable>::Ownership> {
[INFO] [stdout]    |           ---- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 80 |     fn validate(&self);
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CancelInsert` is never constructed
[INFO] [stdout]    --> src/node.rs:378:12
[INFO] [stdout]     |
[INFO] [stdout] 378 | pub struct CancelInsert;
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SwapValue` is never constructed
[INFO] [stdout]    --> src/node.rs:383:12
[INFO] [stdout]     |
[INFO] [stdout] 383 | pub struct SwapValue;
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ViewingBinaryTreeIter` is never constructed
[INFO] [stdout]    --> src/node.rs:937:12
[INFO] [stdout]     |
[INFO] [stdout] 937 | pub struct ViewingBinaryTreeIter<'a, Node: BinaryNode> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/node.rs:957:12
[INFO] [stdout]     |
[INFO] [stdout] 953 | / impl<'a, Node> ViewingBinaryTreeIter<'a, Node>
[INFO] [stdout] 954 | | where
[INFO] [stdout] 955 | |     Node: BinaryNode + Ownable,
[INFO] [stdout]     | |_______________________________- associated function in this implementation
[INFO] [stdout] 956 |   {
[INFO] [stdout] 957 |       pub fn new<'b: 'a, T>(tree: &'b T) -> Self
[INFO] [stdout]     |              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `Command { std: "docker" "inspect" "56e016f0deb5480b76c7487f7fca3d3cd53ab565916284a05d5ca858537e6839", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56e016f0deb5480b76c7487f7fca3d3cd53ab565916284a05d5ca858537e6839", kill_on_drop: false }`
[INFO] [stdout] 56e016f0deb5480b76c7487f7fca3d3cd53ab565916284a05d5ca858537e6839
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7888a51a75db332ded5b30f3e43898699f739aea811645162a473c15a36d734b
[INFO] running `Command { std: "docker" "start" "-a" "7888a51a75db332ded5b30f3e43898699f739aea811645162a473c15a36d734b", kill_on_drop: false }`
[INFO] [stderr] warning: method `validate` is never used
[INFO] [stderr]   --> src/node.rs:80:8
[INFO] [stderr]    |
[INFO] [stderr] 74 | pub trait Tree: IntoIterator<Item = <Self::Node as Ownable>::Ownership> {
[INFO] [stderr]    |           ---- method in this trait
[INFO] [stderr] ...
[INFO] [stderr] 80 |     fn validate(&self);
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `CancelInsert` is never constructed
[INFO] [stderr]    --> src/node.rs:378:12
[INFO] [stderr]     |
[INFO] [stderr] 378 | pub struct CancelInsert;
[INFO] [stderr]     |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `SwapValue` is never constructed
[INFO] [stderr]    --> src/node.rs:383:12
[INFO] [stderr]     |
[INFO] [stderr] 383 | pub struct SwapValue;
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `ViewingBinaryTreeIter` is never constructed
[INFO] [stderr]    --> src/node.rs:937:12
[INFO] [stderr]     |
[INFO] [stderr] 937 | pub struct ViewingBinaryTreeIter<'a, Node: BinaryNode> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]    --> src/node.rs:957:12
[INFO] [stderr]     |
[INFO] [stderr] 953 | / impl<'a, Node> ViewingBinaryTreeIter<'a, Node>
[INFO] [stderr] 954 | | where
[INFO] [stderr] 955 | |     Node: BinaryNode + Ownable,
[INFO] [stderr]     | |_______________________________- associated function in this implementation
[INFO] [stderr] 956 |   {
[INFO] [stderr] 957 |       pub fn new<'b: 'a, T>(tree: &'b T) -> Self
[INFO] [stderr]     |              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `cashmere` (lib) generated 5 warnings
[INFO] [stderr] warning: `cashmere` (lib test) generated 5 warnings (5 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/cashmere-5a1bd3f2d96d4773)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests cashmere
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7888a51a75db332ded5b30f3e43898699f739aea811645162a473c15a36d734b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7888a51a75db332ded5b30f3e43898699f739aea811645162a473c15a36d734b", kill_on_drop: false }`
[INFO] [stdout] 7888a51a75db332ded5b30f3e43898699f739aea811645162a473c15a36d734b
