[INFO] fetching crate tdf_utils 0.2.4...
[INFO] checking tdf_utils-0.2.4 against try#575650af7d7ca88602df28e39d27bf3e456c306e for pr-80579
[INFO] extracting crate tdf_utils 0.2.4 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate tdf_utils 0.2.4 on toolchain 575650af7d7ca88602df28e39d27bf3e456c306e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tdf_utils 0.2.4
[INFO] finished tweaking crates.io crate tdf_utils 0.2.4
[INFO] tweaked toml for crates.io crate tdf_utils 0.2.4 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 896815d8a805bfd57c3c759346e269b87e76fd74283e9e22f98d9e464250b535
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "896815d8a805bfd57c3c759346e269b87e76fd74283e9e22f98d9e464250b535", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "896815d8a805bfd57c3c759346e269b87e76fd74283e9e22f98d9e464250b535", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "896815d8a805bfd57c3c759346e269b87e76fd74283e9e22f98d9e464250b535", kill_on_drop: false }`
[INFO] [stdout] 896815d8a805bfd57c3c759346e269b87e76fd74283e9e22f98d9e464250b535
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dae22d86cf03837e2b82e9fd2fa3aefdd0d33ded99c90ecc31a43b8546ec148f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "dae22d86cf03837e2b82e9fd2fa3aefdd0d33ded99c90ecc31a43b8546ec148f", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]     Checking json v0.12.4
[INFO] [stderr]     Checking serde_json v1.0.61
[INFO] [stderr]     Checking tdf_utils v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bit.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn new(n: usize) -> BinaryIndexedTree<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from`
[INFO] [stdout]   --> src/bit.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn from(v: Vec<T>) -> BinaryIndexedTree<T> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `update`
[INFO] [stdout]   --> src/bit.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn update(&mut self, idx: usize, delta: T) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `sum_to`
[INFO] [stdout]   --> src/bit.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn sum_to(&mut self, idx: usize) -> T {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `sum_of_range`
[INFO] [stdout]   --> src/bit.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn sum_of_range(&mut self, idx: usize, end: usize) -> T {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bit.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn new(n: usize) -> BinaryIndexedTree<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.48s
[INFO] running `Command { std: "docker" "inspect" "dae22d86cf03837e2b82e9fd2fa3aefdd0d33ded99c90ecc31a43b8546ec148f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dae22d86cf03837e2b82e9fd2fa3aefdd0d33ded99c90ecc31a43b8546ec148f", kill_on_drop: false }`
[INFO] [stdout] dae22d86cf03837e2b82e9fd2fa3aefdd0d33ded99c90ecc31a43b8546ec148f