[INFO] fetching crate cashmere 0.0.1...
[INFO] checking cashmere-0.0.1 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate cashmere 0.0.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate cashmere 0.0.1 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded order-stat v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1179e06acceec63345c69ed8c762ac3fb2b1c7fd10079cecb6ba17a5b3488d9c
[INFO] running `Command { std: "docker" "start" "-a" "1179e06acceec63345c69ed8c762ac3fb2b1c7fd10079cecb6ba17a5b3488d9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1179e06acceec63345c69ed8c762ac3fb2b1c7fd10079cecb6ba17a5b3488d9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1179e06acceec63345c69ed8c762ac3fb2b1c7fd10079cecb6ba17a5b3488d9c", kill_on_drop: false }`
[INFO] [stdout] 1179e06acceec63345c69ed8c762ac3fb2b1c7fd10079cecb6ba17a5b3488d9c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc0042c9dc5a4e8240dda87dff58f3eb373bcc60a0611f3fad01944f0b3afcc3
[INFO] running `Command { std: "docker" "start" "-a" "cc0042c9dc5a4e8240dda87dff58f3eb373bcc60a0611f3fad01944f0b3afcc3", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]     Checking order-stat v0.1.3
[INFO] [stderr]    Compiling num-traits v0.2.19
[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: 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: 2 warnings emitted
[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: 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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.69s
[INFO] running `Command { std: "docker" "inspect" "cc0042c9dc5a4e8240dda87dff58f3eb373bcc60a0611f3fad01944f0b3afcc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc0042c9dc5a4e8240dda87dff58f3eb373bcc60a0611f3fad01944f0b3afcc3", kill_on_drop: false }`
[INFO] [stdout] cc0042c9dc5a4e8240dda87dff58f3eb373bcc60a0611f3fad01944f0b3afcc3