[INFO] cloning repository https://github.com/shamatar/poseidon_hash
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shamatar/poseidon_hash" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshamatar%2Fposeidon_hash"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshamatar%2Fposeidon_hash'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a570aba77345cfc17d1a17989ecd1a07766fa47c
[INFO] checking shamatar/poseidon_hash against try#d7b51666469c792a8a3f40849607739bae1e705e for pr-71665
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshamatar%2Fposeidon_hash" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shamatar/poseidon_hash on toolchain d7b51666469c792a8a3f40849607739bae1e705e
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/shamatar/poseidon_hash
[INFO] finished tweaking git repo https://github.com/shamatar/poseidon_hash
[INFO] tweaked toml for git repo https://github.com/shamatar/poseidon_hash written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/shamatar/poseidon_hash already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mathru v0.6.5
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+d7b51666469c792a8a3f40849607739bae1e705e" "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] 76c2c79dead879637037e3487721ab27f74fdd2ebf34528600f4286a14bf832e
[INFO] running `"docker" "start" "-a" "76c2c79dead879637037e3487721ab27f74fdd2ebf34528600f4286a14bf832e"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]     Checking tiny-keccak v1.5.0
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking arrayvec v0.4.12
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking blake2-rfc_bellman_edition v0.0.1
[INFO] [stderr]     Checking sha2 v0.8.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking alga v0.9.3
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling ff_derive_ce v0.8.0
[INFO] [stderr]     Checking ff_ce v0.10.2
[INFO] [stderr]     Checking pairing_ce v0.21.0
[INFO] [stderr]     Checking serde v1.0.106
[INFO] [stderr]     Checking mathru v0.6.5
[INFO] [stderr]     Checking poseidon_hash v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `FromPrimitive`, `NumAssignOps`, `NumOps`, `Num`, `ToPrimitive`
[INFO] [stderr]   --> src/algebra/num_impls.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     NumOps,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 25 |     Num,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 26 |     NumAssignOps,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 27 |     FromPrimitive,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 28 |     ToPrimitive
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Power`
[INFO] [stderr]   --> src/algebra/mathru/mod.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     Power
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::pairing::bn256::Fr`
[INFO] [stderr]    --> src/algebra/mathru/mod.rs:160:13
[INFO] [stderr]     |
[INFO] [stderr] 160 |         use crate::pairing::bn256::Fr;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/algebra/mod.rs:76:9
[INFO] [stderr]    |
[INFO] [stderr] 76 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::specialization_macro::*`
[INFO] [stderr]  --> src/specialization/specialized_2_into_1.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use super::specialization_macro::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `FromPrimitive`, `NumAssignOps`, `NumOps`, `Num`, `ToPrimitive`
[INFO] [stderr]   --> src/algebra/num_impls.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     NumOps,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 25 |     Num,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 26 |     NumAssignOps,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 27 |     FromPrimitive,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 28 |     ToPrimitive
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Power`
[INFO] [stderr]   --> src/algebra/mathru/mod.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     Power
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::specialization_macro::*`
[INFO] [stderr]  --> src/specialization/specialized_2_into_1.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use super::specialization_macro::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::pairing::ff::Field`
[INFO] [stderr]    --> src/algebra/mathru/mod.rs:161:13
[INFO] [stderr]     |
[INFO] [stderr] 161 |         use crate::pairing::ff::Field;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused attribute
[INFO] [stderr]  --> src/specialization/specialized_2_into_1.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused attribute
[INFO] [stderr]  --> src/specialization/specialized_2_into_1.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 06s
[INFO] running `"docker" "inspect" "76c2c79dead879637037e3487721ab27f74fdd2ebf34528600f4286a14bf832e"`
[INFO] running `"docker" "rm" "-f" "76c2c79dead879637037e3487721ab27f74fdd2ebf34528600f4286a14bf832e"`
[INFO] [stdout] 76c2c79dead879637037e3487721ab27f74fdd2ebf34528600f4286a14bf832e