[INFO] cloning repository https://github.com/volhovm/ublu-impl
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/volhovm/ublu-impl" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvolhovm%2Fublu-impl", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvolhovm%2Fublu-impl'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 70476a7c127b6072650e4d30201c5a0ab6402bad
[INFO] building volhovm/ublu-impl against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvolhovm%2Fublu-impl" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/volhovm/ublu-impl
[INFO] finished tweaking git repo https://github.com/volhovm/ublu-impl
[INFO] tweaked toml for git repo https://github.com/volhovm/ublu-impl written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/volhovm/ublu-impl on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/volhovm/ublu-impl 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]   Downloaded inferno v0.11.19
[INFO] [stderr]   Downloaded symbolic-demangle v12.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e721c2d389b7e1c72941755864e7386da1544fa00e66449ee3dd9bdcda7dddcc
[INFO] running `Command { std: "docker" "start" "-a" "e721c2d389b7e1c72941755864e7386da1544fa00e66449ee3dd9bdcda7dddcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e721c2d389b7e1c72941755864e7386da1544fa00e66449ee3dd9bdcda7dddcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e721c2d389b7e1c72941755864e7386da1544fa00e66449ee3dd9bdcda7dddcc", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 72f2ffa3619e486bb7d7779eb58c2067e24506af2616b61fc1ffd9aa50ce79f8
[INFO] running `Command { std: "docker" "start" "-a" "72f2ffa3619e486bb7d7779eb58c2067e24506af2616b61fc1ffd9aa50ce79f8", kill_on_drop: false }`
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[INFO] [stderr]    Compiling generic-array v0.14.7
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[INFO] [stderr]    Compiling ark-ff-asm v0.4.2
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[INFO] [stderr]    Compiling zeroize_derive v1.4.2
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[INFO] [stderr]    Compiling ark-ec v0.4.2
[INFO] [stderr]    Compiling ark-bls12-381 v0.4.0
[INFO] [stderr]    Compiling ublu-impl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rayon::prelude`
[INFO] [stdout]  --> src/ch20.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use rayon::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]  --> src/utils.rs:6:34
[INFO] [stdout]   |
[INFO] [stdout] 6 |         .map(|i| (0..i + 1).map(|j| F::zero()).collect())
[INFO] [stdout]   |                                  ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 38.50s
[INFO] running `Command { std: "docker" "inspect" "72f2ffa3619e486bb7d7779eb58c2067e24506af2616b61fc1ffd9aa50ce79f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72f2ffa3619e486bb7d7779eb58c2067e24506af2616b61fc1ffd9aa50ce79f8", kill_on_drop: false }`
[INFO] [stdout] 72f2ffa3619e486bb7d7779eb58c2067e24506af2616b61fc1ffd9aa50ce79f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 079bc1f3375a7ccb9bdb82b3fd412c76eae81ae7a67db37189254aaaa7d56504
[INFO] running `Command { std: "docker" "start" "-a" "079bc1f3375a7ccb9bdb82b3fd412c76eae81ae7a67db37189254aaaa7d56504", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
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[INFO] [stderr]    Compiling tempfile v3.10.1
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[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling addr2line v0.21.0
[INFO] [stderr]    Compiling ark-std v0.4.0
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[INFO] [stderr]    Compiling tinytemplate v1.2.1
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[INFO] [stderr]    Compiling ark-poly v0.4.2
[INFO] [stderr]    Compiling ark-transcript v0.0.1
[INFO] [stderr]    Compiling ark-ec v0.4.2
[INFO] [stderr]    Compiling ark-bls12-381 v0.4.0
[INFO] [stderr]    Compiling ublu-impl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rayon::prelude`
[INFO] [stdout]  --> src/ch20.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use rayon::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]  --> src/utils.rs:6:34
[INFO] [stdout]   |
[INFO] [stdout] 6 |         .map(|i| (0..i + 1).map(|j| F::zero()).collect())
[INFO] [stdout]   |                                  ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rayon::prelude`
[INFO] [stdout]  --> src/ch20.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use rayon::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e1`
[INFO] [stdout]    --> src/ch20.rs:606:13
[INFO] [stdout]     |
[INFO] [stdout] 606 |         let e1 = Bls12_381::pairing(a, b);
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_e1`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sp`
[INFO] [stdout]    --> src/ch20.rs:626:13
[INFO] [stdout]     |
[INFO] [stdout] 626 |         let sp = CF::rand(&mut rng);
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_sp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prod`
[INFO] [stdout]    --> src/ch20.rs:646:13
[INFO] [stdout]     |
[INFO] [stdout] 646 |         let prod = Bls12_381::multi_pairing(vec![a, c], vec![b, d]);
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_prod`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]  --> src/utils.rs:6:34
[INFO] [stdout]   |
[INFO] [stdout] 6 |         .map(|i| (0..i + 1).map(|j| F::zero()).collect())
[INFO] [stdout]   |                                  ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 55.75s
[INFO] running `Command { std: "docker" "inspect" "079bc1f3375a7ccb9bdb82b3fd412c76eae81ae7a67db37189254aaaa7d56504", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "079bc1f3375a7ccb9bdb82b3fd412c76eae81ae7a67db37189254aaaa7d56504", kill_on_drop: false }`
[INFO] [stdout] 079bc1f3375a7ccb9bdb82b3fd412c76eae81ae7a67db37189254aaaa7d56504