[INFO] fetching crate smart_tensor 0.0.1...
[INFO] checking smart_tensor-0.0.1 against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] extracting crate smart_tensor 0.0.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate smart_tensor 0.0.1
[INFO] finished tweaking crates.io crate smart_tensor 0.0.1
[INFO] tweaked toml for crates.io crate smart_tensor 0.0.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate smart_tensor 0.0.1 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 crates.io crate smart_tensor 0.0.1 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] [stderr]     Blocking waiting for file lock on package cache
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8a1902269ab447777d5aa3bf180f8aec5313e722d4fbc2792bbbff75343649e3
[INFO] running `Command { std: "docker" "start" "-a" "8a1902269ab447777d5aa3bf180f8aec5313e722d4fbc2792bbbff75343649e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8a1902269ab447777d5aa3bf180f8aec5313e722d4fbc2792bbbff75343649e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a1902269ab447777d5aa3bf180f8aec5313e722d4fbc2792bbbff75343649e3", kill_on_drop: false }`
[INFO] [stdout] 8a1902269ab447777d5aa3bf180f8aec5313e722d4fbc2792bbbff75343649e3
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] abe2de948e68971867b3b1f3705f8d930cf6a0156c384c56b9112228adec3bc3
[INFO] running `Command { std: "docker" "start" "-a" "abe2de948e68971867b3b1f3705f8d930cf6a0156c384c56b9112228adec3bc3", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking smart_tensor v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: struct `SliceData` is never constructed
[INFO] [stdout]   --> src/data/mod.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct SliceData<'a, T, const NUMEL: usize>(&'a [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: `SliceData` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `MutSliceData` is never constructed
[INFO] [stdout]   --> src/data/mod.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct MutSliceData<'a, T, const NUMEL: usize>(&'a mut [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: `MutSliceData` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `smart_tensor` (bin "smart_tensor") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: struct `SliceData` is never constructed
[INFO] [stdout]   --> src/data/mod.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct SliceData<'a, T, const NUMEL: usize>(&'a [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: `SliceData` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `MutSliceData` is never constructed
[INFO] [stdout]   --> src/data/mod.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct MutSliceData<'a, T, const NUMEL: usize>(&'a mut [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: `MutSliceData` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `smart_tensor` (bin "smart_tensor" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "abe2de948e68971867b3b1f3705f8d930cf6a0156c384c56b9112228adec3bc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abe2de948e68971867b3b1f3705f8d930cf6a0156c384c56b9112228adec3bc3", kill_on_drop: false }`
[INFO] [stdout] abe2de948e68971867b3b1f3705f8d930cf6a0156c384c56b9112228adec3bc3
