[INFO] updating cached repository https://github.com/dingxiangfei2009/udarnik
[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] 10803628f875041ac3051116185eae0898556f14
[INFO] testing dingxiangfei2009/udarnik against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdingxiangfei2009%2Fudarnik" "/workspace/builds/worker-14/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dingxiangfei2009/udarnik on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/dingxiangfei2009/udarnik
[INFO] finished tweaking git repo https://github.com/dingxiangfei2009/udarnik
[INFO] tweaked toml for git repo https://github.com/dingxiangfei2009/udarnik written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/dingxiangfei2009/udarnik already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ffd5f26f041a0d1eb9a05b84a0dda5fb695ae12c14291d6ebede9d69877b8184
[INFO] running `"docker" "start" "-a" "ffd5f26f041a0d1eb9a05b84a0dda5fb695ae12c14291d6ebede9d69877b8184"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling cc v1.0.35
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling syn v0.15.32
[INFO] [stderr]    Compiling keccak v0.1.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling block-padding v0.1.4
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling sha3 v0.8.1
[INFO] [stderr]    Compiling clear_on_drop v0.2.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling curve25519-dalek v1.1.3
[INFO] [stderr]    Compiling backtrace v0.3.15
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling udarnik v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/pvss/mod.rs:418:13
[INFO] [stderr]     |
[INFO] [stderr] 418 |             mut poll,
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `ed25519_base_mul`
[INFO] [stderr]   --> src/pvss/mod.rs:11:4
[INFO] [stderr]    |
[INFO] [stderr] 11 | fn ed25519_base_mul(s: &Scalar) -> EdwardsPoint {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `random_scalar`
[INFO] [stderr]   --> src/pvss/mod.rs:15:4
[INFO] [stderr]    |
[INFO] [stderr] 15 | fn random_scalar<R: CryptoRng + RngCore>(rng: &mut R) -> Result<Scalar, Error> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ZeroCustodianId`
[INFO] [stderr]   --> src/pvss/mod.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     ZeroCustodianId,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `InvalidCustodianId`
[INFO] [stderr]   --> src/pvss/mod.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     InvalidCustodianId(u64),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Polynomial`
[INFO] [stderr]   --> src/pvss/mod.rs:51:12
[INFO] [stderr]    |
[INFO] [stderr] 51 | pub struct Polynomial(Vec<Scalar>);
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/pvss/mod.rs:55:8
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn new<R: CryptoRng + RngCore>(
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `eval`
[INFO] [stderr]   --> src/pvss/mod.rs:78:8
[INFO] [stderr]    |
[INFO] [stderr] 78 |     fn eval(&self, x: &Scalar) -> Scalar {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Shard`
[INFO] [stderr]    --> src/pvss/mod.rs:119:12
[INFO] [stderr]     |
[INFO] [stderr] 119 | pub struct Shard {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/pvss/mod.rs:125:12
[INFO] [stderr]     |
[INFO] [stderr] 125 |     pub fn new(p: &Polynomial, id: u64, key: &EdwardsPoint) -> (Self, Scalar) {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Seed`
[INFO] [stderr]    --> src/pvss/mod.rs:132:12
[INFO] [stderr]     |
[INFO] [stderr] 132 | pub struct Seed(Scalar);
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/pvss/mod.rs:135:8
[INFO] [stderr]     |
[INFO] [stderr] 135 |     fn new<R: CryptoRng + RngCore>(rng: &mut R) -> Result<Self, Error> {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `SignedSeed`
[INFO] [stderr]    --> src/pvss/mod.rs:140:12
[INFO] [stderr]     |
[INFO] [stderr] 140 | pub struct SignedSeed(EdwardsPoint);
[INFO] [stderr]     |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/pvss/mod.rs:143:12
[INFO] [stderr]     |
[INFO] [stderr] 143 |     pub fn new(seed: &Seed, base: &EdwardsPoint) -> Self {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/pvss/mod.rs:153:8
[INFO] [stderr]     |
[INFO] [stderr] 153 |     fn new(p: &Polynomial) -> Self {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Challenge`
[INFO] [stderr]    --> src/pvss/mod.rs:158:12
[INFO] [stderr]     |
[INFO] [stderr] 158 | pub struct Challenge(Scalar);
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/pvss/mod.rs:161:8
[INFO] [stderr]     |
[INFO] [stderr] 161 |     fn new(commits: &Commits, dealer_signed_seeds: &[SignedSeed], shards: &[Shard]) -> Self {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Responses`
[INFO] [stderr]    --> src/pvss/mod.rs:179:12
[INFO] [stderr]     |
[INFO] [stderr] 179 | pub struct Responses(Vec<Scalar>);
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/pvss/mod.rs:182:8
[INFO] [stderr]     |
[INFO] [stderr] 182 |     fn new(challenge: &Challenge, seeds: &[Seed], secret_shards: &[Scalar]) -> Self {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/pvss/mod.rs:217:12
[INFO] [stderr]     |
[INFO] [stderr] 217 |     pub fn new<R: CryptoRng + RngCore>(
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/pvss/mod.rs:318:12
[INFO] [stderr]     |
[INFO] [stderr] 318 |     pub fn new<R: CryptoRng + RngCore>(
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/pvss/mod.rs:344:8
[INFO] [stderr]     |
[INFO] [stderr] 344 |     fn new<R: CryptoRng + RngCore>(
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `recover_secret`
[INFO] [stderr]    --> src/pvss/mod.rs:450:8
[INFO] [stderr]     |
[INFO] [stderr] 450 | pub fn recover_secret(poll: Verified<Poll>) -> EdwardsPoint {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 23 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.81s
[INFO] running `"docker" "inspect" "ffd5f26f041a0d1eb9a05b84a0dda5fb695ae12c14291d6ebede9d69877b8184"`
[INFO] running `"docker" "rm" "-f" "ffd5f26f041a0d1eb9a05b84a0dda5fb695ae12c14291d6ebede9d69877b8184"`
[INFO] [stdout] ffd5f26f041a0d1eb9a05b84a0dda5fb695ae12c14291d6ebede9d69877b8184
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3a3b4238204ed598fd2efb4ee32c1fa27ffb969fa9b9eaf6f24160d690d881d8
[INFO] running `"docker" "start" "-a" "3a3b4238204ed598fd2efb4ee32c1fa27ffb969fa9b9eaf6f24160d690d881d8"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling udarnik v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/pvss/mod.rs:418:13
[INFO] [stderr]     |
[INFO] [stderr] 418 |             mut poll,
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `ed25519_base_mul`
[INFO] [stderr]   --> src/pvss/mod.rs:11:4
[INFO] [stderr]    |
[INFO] [stderr] 11 | fn ed25519_base_mul(s: &Scalar) -> EdwardsPoint {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `random_scalar`
[INFO] [stderr]   --> src/pvss/mod.rs:15:4
[INFO] [stderr]    |
[INFO] [stderr] 15 | fn random_scalar<R: CryptoRng + RngCore>(rng: &mut R) -> Result<Scalar, Error> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ZeroCustodianId`
[INFO] [stderr]   --> src/pvss/mod.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     ZeroCustodianId,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `InvalidCustodianId`
[INFO] [stderr]   --> src/pvss/mod.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     InvalidCustodianId(u64),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Polynomial`
[INFO] [stderr]   --> src/pvss/mod.rs:51:12
[INFO] [stderr]    |
[INFO] [stderr] 51 | pub struct Polynomial(Vec<Scalar>);
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/pvss/mod.rs:55:8
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn new<R: CryptoRng + RngCore>(
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `eval`
[INFO] [stderr]   --> src/pvss/mod.rs:78:8
[INFO] [stderr]    |
[INFO] [stderr] 78 |     fn eval(&self, x: &Scalar) -> Scalar {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Shard`
[INFO] [stderr]    --> src/pvss/mod.rs:119:12
[INFO] [stderr]     |
[INFO] [stderr] 119 | pub struct Shard {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/pvss/mod.rs:125:12
[INFO] [stderr]     |
[INFO] [stderr] 125 |     pub fn new(p: &Polynomial, id: u64, key: &EdwardsPoint) -> (Self, Scalar) {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Seed`
[INFO] [stderr]    --> src/pvss/mod.rs:132:12
[INFO] [stderr]     |
[INFO] [stderr] 132 | pub struct Seed(Scalar);
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/pvss/mod.rs:135:8
[INFO] [stderr]     |
[INFO] [stderr] 135 |     fn new<R: CryptoRng + RngCore>(rng: &mut R) -> Result<Self, Error> {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `SignedSeed`
[INFO] [stderr]    --> src/pvss/mod.rs:140:12
[INFO] [stderr]     |
[INFO] [stderr] 140 | pub struct SignedSeed(EdwardsPoint);
[INFO] [stderr]     |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/pvss/mod.rs:143:12
[INFO] [stderr]     |
[INFO] [stderr] 143 |     pub fn new(seed: &Seed, base: &EdwardsPoint) -> Self {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/pvss/mod.rs:153:8
[INFO] [stderr]     |
[INFO] [stderr] 153 |     fn new(p: &Polynomial) -> Self {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Challenge`
[INFO] [stderr]    --> src/pvss/mod.rs:158:12
[INFO] [stderr]     |
[INFO] [stderr] 158 | pub struct Challenge(Scalar);
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/pvss/mod.rs:161:8
[INFO] [stderr]     |
[INFO] [stderr] 161 |     fn new(commits: &Commits, dealer_signed_seeds: &[SignedSeed], shards: &[Shard]) -> Self {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Responses`
[INFO] [stderr]    --> src/pvss/mod.rs:179:12
[INFO] [stderr]     |
[INFO] [stderr] 179 | pub struct Responses(Vec<Scalar>);
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/pvss/mod.rs:182:8
[INFO] [stderr]     |
[INFO] [stderr] 182 |     fn new(challenge: &Challenge, seeds: &[Seed], secret_shards: &[Scalar]) -> Self {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/pvss/mod.rs:217:12
[INFO] [stderr]     |
[INFO] [stderr] 217 |     pub fn new<R: CryptoRng + RngCore>(
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/pvss/mod.rs:318:12
[INFO] [stderr]     |
[INFO] [stderr] 318 |     pub fn new<R: CryptoRng + RngCore>(
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/pvss/mod.rs:344:8
[INFO] [stderr]     |
[INFO] [stderr] 344 |     fn new<R: CryptoRng + RngCore>(
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `recover_secret`
[INFO] [stderr]    --> src/pvss/mod.rs:450:8
[INFO] [stderr]     |
[INFO] [stderr] 450 | pub fn recover_secret(poll: Verified<Poll>) -> EdwardsPoint {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 23 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `edwards::EdwardsPoint`, `scalar::Scalar`, `traits::Identity`
[INFO] [stderr]   --> src/pvss/dleq.rs:58:45
[INFO] [stderr]    |
[INFO] [stderr] 58 |         constants::ED25519_BASEPOINT_POINT, edwards::EdwardsPoint, scalar::Scalar, traits::Identity,
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/pvss/mod.rs:418:13
[INFO] [stderr]     |
[INFO] [stderr] 418 |             mut poll,
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `InvalidCustodianId`
[INFO] [stderr]   --> src/pvss/mod.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     InvalidCustodianId(u64),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.67s
[INFO] running `"docker" "inspect" "3a3b4238204ed598fd2efb4ee32c1fa27ffb969fa9b9eaf6f24160d690d881d8"`
[INFO] running `"docker" "rm" "-f" "3a3b4238204ed598fd2efb4ee32c1fa27ffb969fa9b9eaf6f24160d690d881d8"`
[INFO] [stdout] 3a3b4238204ed598fd2efb4ee32c1fa27ffb969fa9b9eaf6f24160d690d881d8
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e0dac2c21e50690158e01414ed9fe2efdebaa100154a982da93f6b0fb7cde425
[INFO] running `"docker" "start" "-a" "e0dac2c21e50690158e01414ed9fe2efdebaa100154a982da93f6b0fb7cde425"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/pvss/mod.rs:418:13
[INFO] [stderr]     |
[INFO] [stderr] 418 |             mut poll,
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `ed25519_base_mul`
[INFO] [stderr]   --> src/pvss/mod.rs:11:4
[INFO] [stderr]    |
[INFO] [stderr] 11 | fn ed25519_base_mul(s: &Scalar) -> EdwardsPoint {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `random_scalar`
[INFO] [stderr]   --> src/pvss/mod.rs:15:4
[INFO] [stderr]    |
[INFO] [stderr] 15 | fn random_scalar<R: CryptoRng + RngCore>(rng: &mut R) -> Result<Scalar, Error> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ZeroCustodianId`
[INFO] [stderr]   --> src/pvss/mod.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     ZeroCustodianId,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `InvalidCustodianId`
[INFO] [stderr]   --> src/pvss/mod.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     InvalidCustodianId(u64),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Polynomial`
[INFO] [stderr]   --> src/pvss/mod.rs:51:12
[INFO] [stderr]    |
[INFO] [stderr] 51 | pub struct Polynomial(Vec<Scalar>);
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/pvss/mod.rs:55:8
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn new<R: CryptoRng + RngCore>(
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `eval`
[INFO] [stderr]   --> src/pvss/mod.rs:78:8
[INFO] [stderr]    |
[INFO] [stderr] 78 |     fn eval(&self, x: &Scalar) -> Scalar {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Shard`
[INFO] [stderr]    --> src/pvss/mod.rs:119:12
[INFO] [stderr]     |
[INFO] [stderr] 119 | pub struct Shard {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/pvss/mod.rs:125:12
[INFO] [stderr]     |
[INFO] [stderr] 125 |     pub fn new(p: &Polynomial, id: u64, key: &EdwardsPoint) -> (Self, Scalar) {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Seed`
[INFO] [stderr]    --> src/pvss/mod.rs:132:12
[INFO] [stderr]     |
[INFO] [stderr] 132 | pub struct Seed(Scalar);
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/pvss/mod.rs:135:8
[INFO] [stderr]     |
[INFO] [stderr] 135 |     fn new<R: CryptoRng + RngCore>(rng: &mut R) -> Result<Self, Error> {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `SignedSeed`
[INFO] [stderr]    --> src/pvss/mod.rs:140:12
[INFO] [stderr]     |
[INFO] [stderr] 140 | pub struct SignedSeed(EdwardsPoint);
[INFO] [stderr]     |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/pvss/mod.rs:143:12
[INFO] [stderr]     |
[INFO] [stderr] 143 |     pub fn new(seed: &Seed, base: &EdwardsPoint) -> Self {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/pvss/mod.rs:153:8
[INFO] [stderr]     |
[INFO] [stderr] 153 |     fn new(p: &Polynomial) -> Self {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Challenge`
[INFO] [stderr]    --> src/pvss/mod.rs:158:12
[INFO] [stderr]     |
[INFO] [stderr] 158 | pub struct Challenge(Scalar);
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/pvss/mod.rs:161:8
[INFO] [stderr]     |
[INFO] [stderr] 161 |     fn new(commits: &Commits, dealer_signed_seeds: &[SignedSeed], shards: &[Shard]) -> Self {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Responses`
[INFO] [stderr]    --> src/pvss/mod.rs:179:12
[INFO] [stderr]     |
[INFO] [stderr] 179 | pub struct Responses(Vec<Scalar>);
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `edwards::EdwardsPoint`, `scalar::Scalar`, `traits::Identity`
[INFO] [stderr]   --> src/pvss/dleq.rs:58:45
[INFO] [stderr]    |
[INFO] [stderr] 58 |         constants::ED25519_BASEPOINT_POINT, edwards::EdwardsPoint, scalar::Scalar, traits::Identity,
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/pvss/mod.rs:182:8
[INFO] [stderr]     |
[INFO] [stderr] 182 |     fn new(challenge: &Challenge, seeds: &[Seed], secret_shards: &[Scalar]) -> Self {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/pvss/mod.rs:418:13
[INFO] [stderr]     |
[INFO] [stderr] 418 |             mut poll,
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `InvalidCustodianId`
[INFO] [stderr]   --> src/pvss/mod.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     InvalidCustodianId(u64),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/pvss/mod.rs:217:12
[INFO] [stderr]     |
[INFO] [stderr] 217 |     pub fn new<R: CryptoRng + RngCore>(
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/pvss/mod.rs:318:12
[INFO] [stderr]     |
[INFO] [stderr] 318 |     pub fn new<R: CryptoRng + RngCore>(
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/pvss/mod.rs:344:8
[INFO] [stderr]     |
[INFO] [stderr] 344 |     fn new<R: CryptoRng + RngCore>(
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `recover_secret`
[INFO] [stderr]    --> src/pvss/mod.rs:450:8
[INFO] [stderr]     |
[INFO] [stderr] 450 | pub fn recover_secret(poll: Verified<Poll>) -> EdwardsPoint {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 23 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.33s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/udarnik-303d071ae62bff41
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test pvss::dleq::tests::it_works ... ok
[INFO] [stdout] test pvss::tests::polynomial ... ok
[INFO] [stdout] test pvss::tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/udarnik-a8070223e5b7d4b0
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests udarnik
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "e0dac2c21e50690158e01414ed9fe2efdebaa100154a982da93f6b0fb7cde425"`
[INFO] running `"docker" "rm" "-f" "e0dac2c21e50690158e01414ed9fe2efdebaa100154a982da93f6b0fb7cde425"`
[INFO] [stdout] e0dac2c21e50690158e01414ed9fe2efdebaa100154a982da93f6b0fb7cde425