[INFO] fetching crate neptune 13.0.0...
[INFO] checking neptune-13.0.0 against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] extracting crate neptune 13.0.0 into /workspace/builds/worker-3-tc2/source
[INFO] removed /workspace/builds/worker-3-tc2/source/.cargo/config
[INFO] removed /workspace/builds/worker-3-tc2/source/rust-toolchain
[INFO] started tweaking crates.io crate neptune 13.0.0
[INFO] finished tweaking crates.io crate neptune 13.0.0
[INFO] tweaked toml for crates.io crate neptune 13.0.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate neptune 13.0.0 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 neptune 13.0.0 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 6446ae276a3cd1ea6da24b8fbf7294c6848354c33f19cd1b8c2788e527a4c385
[INFO] running `Command { std: "docker" "start" "-a" "6446ae276a3cd1ea6da24b8fbf7294c6848354c33f19cd1b8c2788e527a4c385", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6446ae276a3cd1ea6da24b8fbf7294c6848354c33f19cd1b8c2788e527a4c385", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6446ae276a3cd1ea6da24b8fbf7294c6848354c33f19cd1b8c2788e527a4c385", kill_on_drop: false }`
[INFO] [stdout] 6446ae276a3cd1ea6da24b8fbf7294c6848354c33f19cd1b8c2788e527a4c385
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] ac58559807c44510bc44d5f4779e1b534c62214c80c4a0fc4b49b08d7ec063f7
[INFO] running `Command { std: "docker" "start" "-a" "ac58559807c44510bc44d5f4779e1b534c62214c80c4a0fc4b49b08d7ec063f7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling serde v1.0.192
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling funty v2.0.0
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]     Checking subtle v2.5.0
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stderr]    Compiling wyz v0.5.1
[INFO] [stderr]    Compiling rand_xorshift v0.3.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking constant_time_eq v0.3.0
[INFO] [stderr]     Checking arrayref v0.3.7
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]    Compiling ec-gpu v0.2.0
[INFO] [stderr]    Compiling thiserror v1.0.50
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling blake2b_simd v1.0.2
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling blst v0.3.11
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]    Compiling byte-slice-cast v1.2.2
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]     Checking ff v0.13.0
[INFO] [stderr]     Checking group v0.13.0
[INFO] [stderr]     Checking blake2s_simd v1.0.2
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking os_str_bytes v6.6.1
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking pairing v0.23.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking clap v3.2.25
[INFO] [stderr]     Checking walkdir v2.4.0
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]     Checking plotters v0.3.5
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking cpufeatures v0.2.11
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]    Compiling trait-set v0.3.0
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.192
[INFO] [stderr]    Compiling zeroize_derive v1.4.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.50
[INFO] [stderr]    Compiling zeroize v1.6.0
[INFO] [stderr]     Checking bellpepper-core v0.4.0
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking blstrs v0.7.1
[INFO] [stderr]     Checking ciborium v0.2.1
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking pasta_curves v0.5.1
[INFO] [stderr]     Checking bellpepper v0.4.0
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.4.0
[INFO] [stderr]    Compiling neptune v13.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: struct `SimplePoseidonBatchHasher` is never constructed
[INFO] [stdout]    --> src/poseidon.rs:912:12
[INFO] [stdout]     |
[INFO] [stdout] 912 | pub struct SimplePoseidonBatchHasher<F, A>
[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: `SimplePoseidonBatchHasher` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `neptune` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "ac58559807c44510bc44d5f4779e1b534c62214c80c4a0fc4b49b08d7ec063f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac58559807c44510bc44d5f4779e1b534c62214c80c4a0fc4b49b08d7ec063f7", kill_on_drop: false }`
[INFO] [stdout] ac58559807c44510bc44d5f4779e1b534c62214c80c4a0fc4b49b08d7ec063f7
