[INFO] fetching crate cashmere 0.0.1...
[INFO] checking cashmere-0.0.1 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate cashmere 0.0.1 into /workspace/builds/worker-7-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-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cashmere 0.0.1 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 18d674026882a09612f0818a7625199554f6d1737a5044880957e08797972bb2
[INFO] running `Command { std: "docker" "start" "-a" "18d674026882a09612f0818a7625199554f6d1737a5044880957e08797972bb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18d674026882a09612f0818a7625199554f6d1737a5044880957e08797972bb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18d674026882a09612f0818a7625199554f6d1737a5044880957e08797972bb2", kill_on_drop: false }`
[INFO] [stdout] 18d674026882a09612f0818a7625199554f6d1737a5044880957e08797972bb2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1b9f19725e9e8d59e01f07d72a48766c9e36e52ad77a5effdca89f4abc85d455
[INFO] running `Command { std: "docker" "start" "-a" "1b9f19725e9e8d59e01f07d72a48766c9e36e52ad77a5effdca89f4abc85d455", kill_on_drop: false }`
[INFO] [stderr]     Checking order-stat v0.1.3
[INFO] [stderr]     Checking 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)]` 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] [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)]` 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 1.16s
[INFO] running `Command { std: "docker" "inspect" "1b9f19725e9e8d59e01f07d72a48766c9e36e52ad77a5effdca89f4abc85d455", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b9f19725e9e8d59e01f07d72a48766c9e36e52ad77a5effdca89f4abc85d455", kill_on_drop: false }`
[INFO] [stdout] 1b9f19725e9e8d59e01f07d72a48766c9e36e52ad77a5effdca89f4abc85d455