[INFO] fetching crate arkworks-circuits 0.4.20...
[INFO] checking arkworks-circuits-0.4.20 against try#38c2997544af84fe301d600d6896397738163002 for pr-154205-1
[INFO] extracting crate arkworks-circuits 0.4.20 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate arkworks-circuits 0.4.20
[INFO] finished tweaking crates.io crate arkworks-circuits 0.4.20
[INFO] tweaked toml for crates.io crate arkworks-circuits 0.4.20 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate arkworks-circuits 0.4.20 on toolchain 38c2997544af84fe301d600d6896397738163002
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38c2997544af84fe301d600d6896397738163002" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38c2997544af84fe301d600d6896397738163002" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 92 packages to latest compatible versions
[INFO] [stderr]       Adding ark-bls12-381 v0.3.0 (available: v0.5.0)
[INFO] [stderr]       Adding ark-bn254 v0.3.0 (available: v0.5.0)
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[INFO] [stderr]       Adding ark-ff v0.3.0 (available: v0.5.0)
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[INFO] [stderr]       Adding ark-snark v0.3.0 (available: v0.5.1)
[INFO] [stderr]       Adding ark-std v0.3.0 (available: v0.5.0)
[INFO] [stderr]       Adding arkworks-utils v0.4.20 (available: v1.0.1)
[INFO] [stderr]       Adding blake2 v0.9.2 (available: v0.10.6)
[INFO] [stderr]       Adding digest v0.9.0 (available: v0.11.2)
[INFO] [stderr]       Adding ethabi v15.0.0 (available: v18.0.0)
[INFO] [stderr]       Adding hex-literal v0.3.4 (available: v1.1.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38c2997544af84fe301d600d6896397738163002" "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" "+38c2997544af84fe301d600d6896397738163002" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 242b27dbe39230d1170235cae613b640a7186d16a7d94163e9e78ee6660a187a
[INFO] running `Command { std: "docker" "start" "-a" "242b27dbe39230d1170235cae613b640a7186d16a7d94163e9e78ee6660a187a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "242b27dbe39230d1170235cae613b640a7186d16a7d94163e9e78ee6660a187a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "242b27dbe39230d1170235cae613b640a7186d16a7d94163e9e78ee6660a187a", kill_on_drop: false }`
[INFO] [stdout] 242b27dbe39230d1170235cae613b640a7186d16a7d94163e9e78ee6660a187a
[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" "+38c2997544af84fe301d600d6896397738163002" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 13a7ecd15521b4953ffb482a5b01f883f621a7c4992de8181d3b6d2224fc8f93
[INFO] running `Command { std: "docker" "start" "-a" "13a7ecd15521b4953ffb482a5b01f883f621a7c4992de8181d3b6d2224fc8f93", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]    Compiling zeroize_derive v1.4.3
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling ark-ff v0.3.0
[INFO] [stderr]     Checking tracing-core v0.1.36
[INFO] [stderr]    Compiling libc v0.2.183
[INFO] [stderr]    Compiling crunchy v0.2.4
[INFO] [stderr]     Checking once_cell v1.21.4
[INFO] [stderr]     Checking zeroize v1.8.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking subtle v2.6.1
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[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rustc-hex v2.1.0
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
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[INFO] [stderr]     Checking fixed-hash v0.7.0
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[INFO] [stderr]     Checking block-padding v0.2.1
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[INFO] [stderr]    Compiling ark-serialize-derive v0.3.0
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[INFO] [stderr]     Checking arkworks-circuits v0.4.20 (/opt/rustwide/workdir)
[INFO] [stderr] [FMTARGS] {"crate":"arkworks_circuits","loc":"src/setup/vanchor.rs:51:12","p":0,"ph":1,"wa":0,"pa":0,"a":1,"pos":1,"named":0,"cap":0,"ucap":0,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":1,"a_opt":1,"sz_no_dedup":16,"sz_old":16,"sz_opt":16}
[INFO] [stderr] [FMTARGS] {"crate":"arkworks_circuits","loc":"src/setup/vanchor.rs:51:12","p":0,"ph":1,"wa":0,"pa":0,"a":1,"pos":1,"named":0,"cap":0,"ucap":0,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":1,"a_opt":1,"sz_no_dedup":16,"sz_old":16,"sz_opt":16}
[INFO] [stderr] [FMTARGS] {"crate":"arkworks_circuits","loc":"src/circuit/mixer.rs:217:3","p":7,"ph":6,"wa":0,"pa":0,"a":6,"pos":6,"named":0,"cap":0,"ucap":0,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":6,"a_opt":6,"sz_no_dedup":96,"sz_old":96,"sz_opt":96}
[INFO] [stderr] [FMTARGS] {"crate":"arkworks_circuits","loc":"src/circuit/mixer.rs:447:3","p":7,"ph":6,"wa":0,"pa":0,"a":6,"pos":6,"named":0,"cap":0,"ucap":0,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":6,"a_opt":6,"sz_no_dedup":96,"sz_old":96,"sz_opt":96}
[INFO] [stderr] [FMTARGS] {"crate":"arkworks_circuits","loc":"src/circuit/mixer.rs:503:3","p":7,"ph":6,"wa":0,"pa":0,"a":6,"pos":6,"named":0,"cap":0,"ucap":0,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":6,"a_opt":6,"sz_no_dedup":96,"sz_old":96,"sz_opt":96}
[INFO] [stdout] warning: struct `DummyCircuit` is never constructed
[INFO] [stdout]  --> src/circuit/basic.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct DummyCircuit<F: PrimeField> {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 26.69s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: ark-poly-commit v0.3.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "13a7ecd15521b4953ffb482a5b01f883f621a7c4992de8181d3b6d2224fc8f93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13a7ecd15521b4953ffb482a5b01f883f621a7c4992de8181d3b6d2224fc8f93", kill_on_drop: false }`
[INFO] [stdout] 13a7ecd15521b4953ffb482a5b01f883f621a7c4992de8181d3b6d2224fc8f93