[INFO] fetching crate libzeropool-rs 0.3.8...
[INFO] checking libzeropool-rs-0.3.8 against try#9b06ec641f3d05c126a54ceadba42a64366f72b4 for pr-95755
[INFO] extracting crate libzeropool-rs 0.3.8 into /workspace/builds/worker-33/source
[INFO] validating manifest of crates.io crate libzeropool-rs 0.3.8 on toolchain 9b06ec641f3d05c126a54ceadba42a64366f72b4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b06ec641f3d05c126a54ceadba42a64366f72b4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libzeropool-rs 0.3.8
[INFO] finished tweaking crates.io crate libzeropool-rs 0.3.8
[INFO] tweaked toml for crates.io crate libzeropool-rs 0.3.8 written to /workspace/builds/worker-33/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b06ec641f3d05c126a54ceadba42a64366f72b4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b06ec641f3d05c126a54ceadba42a64366f72b4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+9b06ec641f3d05c126a54ceadba42a64366f72b4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fcf44a84f8071cd2351e77f287cfac80d654887698c284c856e83a74e97f48b2
[INFO] running `Command { std: "docker" "start" "-a" "fcf44a84f8071cd2351e77f287cfac80d654887698c284c856e83a74e97f48b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fcf44a84f8071cd2351e77f287cfac80d654887698c284c856e83a74e97f48b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcf44a84f8071cd2351e77f287cfac80d654887698c284c856e83a74e97f48b2", kill_on_drop: false }`
[INFO] [stdout] fcf44a84f8071cd2351e77f287cfac80d654887698c284c856e83a74e97f48b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+9b06ec641f3d05c126a54ceadba42a64366f72b4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eaeb8a9ef9ff334a01208acd7c20bfcabfccf85928ddb351a86f3fcc6e65730e
[INFO] running `Command { std: "docker" "start" "-a" "eaeb8a9ef9ff334a01208acd7c20bfcabfccf85928ddb351a86f3fcc6e65730e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling version_check v0.9.4
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[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]     Checking block-padding v0.2.1
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[INFO] [stderr]     Checking fawkes-crypto-pairing_ce v0.18.1
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[INFO] [stderr]    Compiling ref-cast-impl v1.0.6
[INFO] [stderr]    Compiling concat-idents v1.1.3
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[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]     Checking thiserror v1.0.30
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[INFO] [stderr]    Compiling borsh-derive v0.9.3
[INFO] [stderr]    Compiling ff-uint_derive v0.2.4
[INFO] [stderr]     Checking borsh v0.9.3
[INFO] [stderr]     Checking ff-uint v0.2.4
[INFO] [stderr]     Checking fawkes-crypto v4.3.3
[INFO] [stderr]     Checking libzeropool v0.5.6
[INFO] [stderr]     Checking libzeropool-rs v0.3.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `add_subtree_root`
[INFO] [stdout]    --> src/merkle.rs:177:8
[INFO] [stdout]     |
[INFO] [stdout] 177 |     fn add_subtree_root(&mut self, height: u32, index: u64, hash: Hash<P::Fr>) {
[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: `get_proof_after`
[INFO] [stdout]    --> src/merkle.rs:263:8
[INFO] [stdout]     |
[INFO] [stdout] 263 |     fn get_proof_after<I>(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.37s
[INFO] running `Command { std: "docker" "inspect" "eaeb8a9ef9ff334a01208acd7c20bfcabfccf85928ddb351a86f3fcc6e65730e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eaeb8a9ef9ff334a01208acd7c20bfcabfccf85928ddb351a86f3fcc6e65730e", kill_on_drop: false }`
[INFO] [stdout] eaeb8a9ef9ff334a01208acd7c20bfcabfccf85928ddb351a86f3fcc6e65730e