[INFO] updating cached repository https://github.com/matterinc/Edcon2019_material
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b26613ad545bf5319d76bd52a083e83c0db75280
[INFO] checking matterinc/Edcon2019_material against try#13f916f63bc6575d5ff1f989237dfabe88981368 for pr-69880
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatterinc%2FEdcon2019_material" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/matterinc/Edcon2019_material on toolchain 13f916f63bc6575d5ff1f989237dfabe88981368
[INFO] running `"/workspace/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/matterinc/Edcon2019_material
[INFO] finished tweaking git repo https://github.com/matterinc/Edcon2019_material
[INFO] tweaked toml for git repo https://github.com/matterinc/Edcon2019_material written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/matterinc/Edcon2019_material already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 74a996e14bf920d394e50ce3c849c65dc69a41ceefe3951bbd1799f779fa506b
[INFO] running `"docker" "start" "-a" "74a996e14bf920d394e50ce3c849c65dc69a41ceefe3951bbd1799f779fa506b"`
[INFO] [stderr]     Checking edcon_demo v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `PrimeFieldRepr`
[INFO] [stderr]  --> src/circuit.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     PrimeFieldRepr,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Engine`
[INFO] [stderr]   --> src/circuit.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Engine
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `multipack`
[INFO] [stderr]   --> src/circuit.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     multipack,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `JubjubParams`, `PrimeOrder`, `Unknown`, `edwards`
[INFO] [stderr]   --> src/circuit.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     PrimeOrder,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 36 |     Unknown,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 37 |     edwards,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 38 |     JubjubParams
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BitIterator`, `PrimeFieldRepr`
[INFO] [stderr]   --> src/demo.rs:8:5
[INFO] [stderr]    |
[INFO] [stderr] 8  |     PrimeFieldRepr,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 9  |     Field,
[INFO] [stderr] 10 |     BitIterator
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Engine`
[INFO] [stderr]   --> src/demo.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Engine
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `multipack`
[INFO] [stderr]   --> src/demo.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     multipack,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `JubjubParams`, `PrimeOrder`, `Unknown`, `edwards`
[INFO] [stderr]   --> src/demo.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     PrimeOrder,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 36 |     Unknown,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 37 |     edwards,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 38 |     JubjubParams
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Engine`
[INFO] [stderr]   --> src/circuit.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Engine
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `multipack`
[INFO] [stderr]   --> src/circuit.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     multipack,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `PrimeOrder`, `Unknown`, `edwards`
[INFO] [stderr]   --> src/circuit.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     PrimeOrder,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 36 |     Unknown,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 37 |     edwards,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Rand`
[INFO] [stderr]    --> src/circuit.rs:343:47
[INFO] [stderr]     |
[INFO] [stderr] 343 |     use rand::{SeedableRng, Rng, XorShiftRng, Rand};
[INFO] [stderr]     |                                               ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `PrimeOrder`, `edwards`
[INFO] [stderr]    --> src/circuit.rs:345:62
[INFO] [stderr]     |
[INFO] [stderr] 345 |     use sapling_crypto::alt_babyjubjub::{AltJubjubBn256, fs, edwards, PrimeOrder};
[INFO] [stderr]     |                                                              ^^^^^^^  ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BitIterator`, `PrimeFieldRepr`
[INFO] [stderr]   --> src/demo.rs:8:5
[INFO] [stderr]    |
[INFO] [stderr] 8  |     PrimeFieldRepr,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 9  |     Field,
[INFO] [stderr] 10 |     BitIterator
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Engine`
[INFO] [stderr]   --> src/demo.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Engine
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `multipack`
[INFO] [stderr]   --> src/demo.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     multipack,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `JubjubParams`, `PrimeOrder`, `Unknown`, `edwards`
[INFO] [stderr]   --> src/demo.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     PrimeOrder,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 36 |     Unknown,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 37 |     edwards,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 38 |     JubjubParams
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.41s
[INFO] running `"docker" "inspect" "74a996e14bf920d394e50ce3c849c65dc69a41ceefe3951bbd1799f779fa506b"`
[INFO] running `"docker" "rm" "-f" "74a996e14bf920d394e50ce3c849c65dc69a41ceefe3951bbd1799f779fa506b"`
[INFO] [stdout] 74a996e14bf920d394e50ce3c849c65dc69a41ceefe3951bbd1799f779fa506b