[INFO] cloning repository https://github.com/elzimm-software/turring_cube
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/elzimm-software/turring_cube" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Felzimm-software%2Fturring_cube", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Felzimm-software%2Fturring_cube'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 103b6110d5863e92cc138616414710573af84749
[INFO] checking elzimm-software/turring_cube against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Felzimm-software%2Fturring_cube" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/elzimm-software/turring_cube
[INFO] finished tweaking git repo https://github.com/elzimm-software/turring_cube
[INFO] tweaked toml for git repo https://github.com/elzimm-software/turring_cube written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/elzimm-software/turring_cube on toolchain 93086cfebfccb79083c59d0d3b2052944bba643c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/elzimm-software/turring_cube already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c417886373c0233dce88fc938e761bb19c6aed436cdbeb319c1f31939e22c590
[INFO] running `Command { std: "docker" "start" "-a" "c417886373c0233dce88fc938e761bb19c6aed436cdbeb319c1f31939e22c590", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c417886373c0233dce88fc938e761bb19c6aed436cdbeb319c1f31939e22c590", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c417886373c0233dce88fc938e761bb19c6aed436cdbeb319c1f31939e22c590", kill_on_drop: false }`
[INFO] [stdout] c417886373c0233dce88fc938e761bb19c6aed436cdbeb319c1f31939e22c590
[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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 74971ccaf780893cf635e914a1eaa25290568276a33a670514ffc08e0e8e490c
[INFO] running `Command { std: "docker" "start" "-a" "74971ccaf780893cf635e914a1eaa25290568276a33a670514ffc08e0e8e490c", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking turring_cube v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/lib.rs:53:25
[INFO] [stdout]    |
[INFO] [stdout] 53 |         fn index(&self, index: &Q) -> &Self::Output {
[INFO] [stdout]    |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/lib.rs:53:25
[INFO] [stdout]    |
[INFO] [stdout] 53 |         fn index(&self, index: &Q) -> &Self::Output {
[INFO] [stdout]    |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/lib.rs:61:25
[INFO] [stdout]    |
[INFO] [stdout] 61 |         fn index(&self, index: u128) -> &Self::Output {
[INFO] [stdout]    |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/lib.rs:61:25
[INFO] [stdout]    |
[INFO] [stdout] 61 |         fn index(&self, index: u128) -> &Self::Output {
[INFO] [stdout]    |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `ChunkedBuffer` is never constructed
[INFO] [stdout]   --> src/lib.rs:27:16
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub struct ChunkedBuffer<T> {
[INFO] [stdout]    |                ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `ChunkedBuffer` is never constructed
[INFO] [stdout]   --> src/lib.rs:27:16
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub struct ChunkedBuffer<T> {
[INFO] [stdout]    |                ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `data`, `start`, and `len` are never read
[INFO] [stdout]   --> src/lib.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     struct Chunk<T> {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 21 |         data: Box<[T]>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 22 |         start: BigInt,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 23 |         len: BigInt,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `chunks` and `null_value` are never read
[INFO] [stdout]   --> src/lib.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub struct ChunkedBuffer<T> {
[INFO] [stdout]    |                ------------- fields in this struct
[INFO] [stdout] 28 |         chunks: BTreeMap<BigInt, Chunk<T>>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 29 |         null_value: T,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `data`, `start`, and `len` are never read
[INFO] [stdout]   --> src/lib.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     struct Chunk<T> {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 21 |         data: Box<[T]>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 22 |         start: BigInt,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 23 |         len: BigInt,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `index_in_chunk` and `get_lower_chuck` are never used
[INFO] [stdout]   --> src/lib.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     impl<T> ChunkedBuffer<T> {
[INFO] [stdout]    |     ------------------------ methods in this implementation
[INFO] [stdout] 33 |         fn index_in_chunk(&self, idx: &BigInt) -> Option<BigInt> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |         fn get_lower_chuck(&self, idx: &BigInt) -> Option<(&BigInt, &Chunk<T>)> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `chunks` and `null_value` are never read
[INFO] [stdout]   --> src/lib.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub struct ChunkedBuffer<T> {
[INFO] [stdout]    |                ------------- fields in this struct
[INFO] [stdout] 28 |         chunks: BTreeMap<BigInt, Chunk<T>>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 29 |         null_value: T,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `index_in_chunk` and `get_lower_chuck` are never used
[INFO] [stdout]   --> src/lib.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     impl<T> ChunkedBuffer<T> {
[INFO] [stdout]    |     ------------------------ methods in this implementation
[INFO] [stdout] 33 |         fn index_in_chunk(&self, idx: &BigInt) -> Option<BigInt> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |         fn get_lower_chuck(&self, idx: &BigInt) -> Option<(&BigInt, &Chunk<T>)> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `turring_cube` (lib test) due to 1 previous error; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `turring_cube` (lib) due to 1 previous error; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "74971ccaf780893cf635e914a1eaa25290568276a33a670514ffc08e0e8e490c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74971ccaf780893cf635e914a1eaa25290568276a33a670514ffc08e0e8e490c", kill_on_drop: false }`
[INFO] [stdout] 74971ccaf780893cf635e914a1eaa25290568276a33a670514ffc08e0e8e490c