[INFO] cloning repository https://github.com/dingxiangfei2009/udarnik
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dingxiangfei2009/udarnik" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdingxiangfei2009%2Fudarnik", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdingxiangfei2009%2Fudarnik'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 10803628f875041ac3051116185eae0898556f14
[INFO] checking dingxiangfei2009/udarnik against master#5518eaa946291f00471af8b254b2a1715f234882 for pr-120393-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdingxiangfei2009%2Fudarnik" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dingxiangfei2009/udarnik on toolchain 5518eaa946291f00471af8b254b2a1715f234882
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/dingxiangfei2009/udarnik 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" "+5518eaa946291f00471af8b254b2a1715f234882" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustc-demangle v0.1.14
[INFO] [stderr]   Downloaded keccak v0.1.0
[INFO] [stderr]   Downloaded cc v1.0.35
[INFO] [stderr]   Downloaded clear_on_drop v0.2.3
[INFO] [stderr]   Downloaded backtrace v0.3.15
[INFO] [stderr]   Downloaded syn v0.15.32
[INFO] [stderr]   Downloaded libc v0.2.51
[INFO] [stderr]   Downloaded subtle v2.0.0
[INFO] [stderr]   Downloaded curve25519-dalek v1.1.3
[INFO] [stderr]   Downloaded sha3 v0.8.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d5967791b01b954163c6b3e798761dbf10a2ac64ddc233309b3ed8b6d0311d97
[INFO] running `Command { std: "docker" "start" "-a" "d5967791b01b954163c6b3e798761dbf10a2ac64ddc233309b3ed8b6d0311d97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d5967791b01b954163c6b3e798761dbf10a2ac64ddc233309b3ed8b6d0311d97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5967791b01b954163c6b3e798761dbf10a2ac64ddc233309b3ed8b6d0311d97", kill_on_drop: false }`
[INFO] [stdout] d5967791b01b954163c6b3e798761dbf10a2ac64ddc233309b3ed8b6d0311d97
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 70ba89a172b0d1b5e1f052d69cad6dd6dbaf320e7f9ec19685344c27434b8141
[INFO] running `Command { std: "docker" "start" "-a" "70ba89a172b0d1b5e1f052d69cad6dd6dbaf320e7f9ec19685344c27434b8141", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling cc v1.0.35
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.32
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling subtle v2.0.0
[INFO] [stderr]     Checking cfg-if v0.1.7
[INFO] [stderr]     Checking rustc-demangle v0.1.14
[INFO] [stderr]     Checking opaque-debug v0.2.2
[INFO] [stderr]     Checking block-padding v0.1.4
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.3
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling backtrace v0.3.15
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling clear_on_drop v0.2.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking generic-array v0.12.0
[INFO] [stderr]     Checking digest v0.8.0
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking sha3 v0.8.1
[INFO] [stderr]    Compiling curve25519-dalek v1.1.3
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking udarnik v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `edwards::EdwardsPoint`, `scalar::Scalar`, `traits::Identity`
[INFO] [stdout]   --> src/pvss/dleq.rs:58:45
[INFO] [stdout]    |
[INFO] [stdout] 58 |         constants::ED25519_BASEPOINT_POINT, edwards::EdwardsPoint, scalar::Scalar, traits::Identity,
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/pvss/mod.rs:418:13
[INFO] [stdout]     |
[INFO] [stdout] 418 |             mut poll,
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/pvss/mod.rs:418:13
[INFO] [stdout]     |
[INFO] [stdout] 418 |             mut poll,
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ed25519_base_mul` is never used
[INFO] [stdout]   --> src/pvss/mod.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn ed25519_base_mul(s: &Scalar) -> EdwardsPoint {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `random_scalar` is never used
[INFO] [stdout]   --> src/pvss/mod.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn random_scalar<R: CryptoRng + RngCore>(rng: &mut R) -> Result<Scalar, Error> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `ZeroCustodianId` and `InvalidCustodianId` are never constructed
[INFO] [stdout]   --> src/pvss/mod.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub enum Error {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 34 |     ZeroCustodianId,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 35 |     #[fail(display = "custodian id is invalid")]
[INFO] [stdout] 36 |     InvalidCustodianId(u64),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Polynomial` is never constructed
[INFO] [stdout]   --> src/pvss/mod.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub struct Polynomial(Vec<Scalar>);
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `eval` are never used
[INFO] [stdout]   --> src/pvss/mod.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 53 | impl Polynomial {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 54 |     /// A polynomial with coefficients in Ed25519
[INFO] [stdout] 55 |     fn new<R: CryptoRng + RngCore>(
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 78 |     fn eval(&self, x: &Scalar) -> Scalar {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Shard` is never constructed
[INFO] [stdout]    --> src/pvss/mod.rs:119:12
[INFO] [stdout]     |
[INFO] [stdout] 119 | pub struct Shard {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/pvss/mod.rs:125:12
[INFO] [stdout]     |
[INFO] [stdout] 124 | impl Shard {
[INFO] [stdout]     | ---------- associated function in this implementation
[INFO] [stdout] 125 |     pub fn new(p: &Polynomial, id: u64, key: &EdwardsPoint) -> (Self, Scalar) {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Seed` is never constructed
[INFO] [stdout]    --> src/pvss/mod.rs:132:12
[INFO] [stdout]     |
[INFO] [stdout] 132 | pub struct Seed(Scalar);
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/pvss/mod.rs:135:8
[INFO] [stdout]     |
[INFO] [stdout] 134 | impl Seed {
[INFO] [stdout]     | --------- associated function in this implementation
[INFO] [stdout] 135 |     fn new<R: CryptoRng + RngCore>(rng: &mut R) -> Result<Self, Error> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SignedSeed` is never constructed
[INFO] [stdout]    --> src/pvss/mod.rs:140:12
[INFO] [stdout]     |
[INFO] [stdout] 140 | pub struct SignedSeed(EdwardsPoint);
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/pvss/mod.rs:143:12
[INFO] [stdout]     |
[INFO] [stdout] 142 | impl SignedSeed {
[INFO] [stdout]     | --------------- associated function in this implementation
[INFO] [stdout] 143 |     pub fn new(seed: &Seed, base: &EdwardsPoint) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/pvss/mod.rs:153:8
[INFO] [stdout]     |
[INFO] [stdout] 152 | impl Commits {
[INFO] [stdout]     | ------------ associated function in this implementation
[INFO] [stdout] 153 |     fn new(p: &Polynomial) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Challenge` is never constructed
[INFO] [stdout]    --> src/pvss/mod.rs:158:12
[INFO] [stdout]     |
[INFO] [stdout] 158 | pub struct Challenge(Scalar);
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/pvss/mod.rs:161:8
[INFO] [stdout]     |
[INFO] [stdout] 160 | impl Challenge {
[INFO] [stdout]     | -------------- associated function in this implementation
[INFO] [stdout] 161 |     fn new(commits: &Commits, dealer_signed_seeds: &[SignedSeed], shards: &[Shard]) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Responses` is never constructed
[INFO] [stdout]    --> src/pvss/mod.rs:179:12
[INFO] [stdout]     |
[INFO] [stdout] 179 | pub struct Responses(Vec<Scalar>);
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/pvss/mod.rs:182:8
[INFO] [stdout]     |
[INFO] [stdout] 181 | impl Responses {
[INFO] [stdout]     | -------------- associated function in this implementation
[INFO] [stdout] 182 |     fn new(challenge: &Challenge, seeds: &[Seed], secret_shards: &[Scalar]) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/pvss/mod.rs:217:12
[INFO] [stdout]     |
[INFO] [stdout] 216 | impl ShardsWithProof {
[INFO] [stdout]     | -------------------- associated function in this implementation
[INFO] [stdout] 217 |     pub fn new<R: CryptoRng + RngCore>(
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/pvss/mod.rs:318:12
[INFO] [stdout]     |
[INFO] [stdout] 317 | impl CustodianDecryption {
[INFO] [stdout]     | ------------------------ associated function in this implementation
[INFO] [stdout] 318 |     pub fn new<R: CryptoRng + RngCore>(
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/pvss/mod.rs:344:8
[INFO] [stdout]     |
[INFO] [stdout] 343 | impl CustodianProof {
[INFO] [stdout]     | ------------------- associated function in this implementation
[INFO] [stdout] 344 |     fn new<R: CryptoRng + RngCore>(
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `recover_secret` is never used
[INFO] [stdout]    --> src/pvss/mod.rs:450:8
[INFO] [stdout]     |
[INFO] [stdout] 450 | pub fn recover_secret(poll: Verified<Poll>) -> EdwardsPoint {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `InvalidCustodianId` is never constructed
[INFO] [stdout]   --> src/pvss/mod.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub enum Error {
[INFO] [stdout]    |          ----- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 36 |     InvalidCustodianId(u64),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.96s
[INFO] running `Command { std: "docker" "inspect" "70ba89a172b0d1b5e1f052d69cad6dd6dbaf320e7f9ec19685344c27434b8141", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70ba89a172b0d1b5e1f052d69cad6dd6dbaf320e7f9ec19685344c27434b8141", kill_on_drop: false }`
[INFO] [stdout] 70ba89a172b0d1b5e1f052d69cad6dd6dbaf320e7f9ec19685344c27434b8141
