[INFO] fetching crate numquad 0.1.3...
[INFO] checking numquad-0.1.3 against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] extracting crate numquad 0.1.3 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate numquad 0.1.3
[INFO] finished tweaking crates.io crate numquad 0.1.3
[INFO] tweaked toml for crates.io crate numquad 0.1.3 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate numquad 0.1.3 on toolchain 0611f7de057c584b8771102fde7aed6c70c71d3b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate numquad 0.1.3 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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9db8eb3ec8c99d6998e2feecdc5ae05a5846873ae179041438d38ab6008839d9
[INFO] running `Command { std: "docker" "start" "-a" "9db8eb3ec8c99d6998e2feecdc5ae05a5846873ae179041438d38ab6008839d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9db8eb3ec8c99d6998e2feecdc5ae05a5846873ae179041438d38ab6008839d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9db8eb3ec8c99d6998e2feecdc5ae05a5846873ae179041438d38ab6008839d9", kill_on_drop: false }`
[INFO] [stdout] 9db8eb3ec8c99d6998e2feecdc5ae05a5846873ae179041438d38ab6008839d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b093808de88c0e7a8a3fd6434f097c0a06f39ad6a3ab63b76f8601b1020b2ac8
[INFO] running `Command { std: "docker" "start" "-a" "b093808de88c0e7a8a3fd6434f097c0a06f39ad6a3ab63b76f8601b1020b2ac8", kill_on_drop: false }`
[INFO] [stderr]     Checking assert_approx_eq v1.1.0
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]     Checking numquad v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] error: struct `ConstPolynomial` is never constructed
[INFO] [stdout]   --> src/polynomial/mod.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub struct ConstPolynomial<const Q: usize>([f64; Q]);
[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_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `GaussQuad` is never constructed
[INFO] [stdout]   --> src/quadrature/gauss.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct GaussQuad<const Q: usize> {
[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] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `numquad` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: struct `ConstPolynomial` is never constructed
[INFO] [stdout]   --> src/polynomial/mod.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub struct ConstPolynomial<const Q: usize>([f64; Q]);
[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_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `GaussQuad` is never constructed
[INFO] [stdout]   --> src/quadrature/gauss.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct GaussQuad<const Q: usize> {
[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] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `numquad` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "b093808de88c0e7a8a3fd6434f097c0a06f39ad6a3ab63b76f8601b1020b2ac8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b093808de88c0e7a8a3fd6434f097c0a06f39ad6a3ab63b76f8601b1020b2ac8", kill_on_drop: false }`
[INFO] [stdout] b093808de88c0e7a8a3fd6434f097c0a06f39ad6a3ab63b76f8601b1020b2ac8
