[INFO] fetching crate darktoken 0.0.6...
[INFO] testing darktoken-0.0.6 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate darktoken 0.0.6 into /workspace/builds/worker-49/source
[INFO] validating manifest of crates.io crate darktoken 0.0.6 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate darktoken 0.0.6
[INFO] finished tweaking crates.io crate darktoken 0.0.6
[INFO] tweaked toml for crates.io crate darktoken 0.0.6 written to /workspace/builds/worker-49/source/Cargo.toml
[INFO] crate crates.io crate darktoken 0.0.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded subtle v2.2.2
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[INFO] running `Command { std: "docker" "inspect" "3db1e0e9ec0d816538bc20332fce71d8168d9556b3de10511e024861e21637e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3db1e0e9ec0d816538bc20332fce71d8168d9556b3de10511e024861e21637e1", kill_on_drop: false }`
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[INFO] [stdout] d6efd6aa816e8f55496d7d54d402489fcfda2b04ebf836fe3a801d90c50150c1
[INFO] running `Command { std: "docker" "start" "-a" "d6efd6aa816e8f55496d7d54d402489fcfda2b04ebf836fe3a801d90c50150c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling byteorder v1.3.4
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[INFO] [stderr]    Compiling fake-simd v0.1.2
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[INFO] [stderr]    Compiling bls12_381 v0.1.1
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[INFO] [stderr]    Compiling digest v0.8.1
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[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling darktoken v0.0.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.66s
[INFO] running `Command { std: "docker" "inspect" "d6efd6aa816e8f55496d7d54d402489fcfda2b04ebf836fe3a801d90c50150c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6efd6aa816e8f55496d7d54d402489fcfda2b04ebf836fe3a801d90c50150c1", kill_on_drop: false }`
[INFO] [stdout] d6efd6aa816e8f55496d7d54d402489fcfda2b04ebf836fe3a801d90c50150c1
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[INFO] [stdout] 3b92144dd8d1549e01b048d7477acafed1b904afae910f4b286e00e55b30f366
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[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.14
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[INFO] [stderr]    Compiling darktoken v0.0.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `App`, `Arg`, `SubCommand`
[INFO] [stdout]  --> examples/darktoken.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | use clap::{App, Arg, SubCommand};
[INFO] [stdout]   |            ^^^  ^^^  ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_string`
[INFO] [stdout]   --> examples/test.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn from_string(&self, serialized: &str) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> examples/darktoken.rs:951:5
[INFO] [stdout]     |
[INFO] [stdout] 949 |       return;
[INFO] [stdout]     |       ------ any code following this expression is unreachable
[INFO] [stdout] 950 | 
[INFO] [stdout] 951 | /     let settings = CoconutSettings {
[INFO] [stdout] 952 | |         attributes: 2,
[INFO] [stdout] 953 | |
[INFO] [stdout] 954 | |         threshold: 5,
[INFO] [stdout] 955 | |         total: 7,
[INFO] [stdout] 956 | |     };
[INFO] [stdout]     | |______^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `token1`
[INFO] [stdout]    --> examples/darktoken.rs:986:13
[INFO] [stdout]     |
[INFO] [stdout] 986 |         Ok((token1, token2)) => println!("split worked."),
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_token1`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `token2`
[INFO] [stdout]    --> examples/darktoken.rs:986:21
[INFO] [stdout]     |
[INFO] [stdout] 986 |         Ok((token1, token2)) => println!("split worked."),
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_token2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sign_request`
[INFO] [stdout]    --> examples/darktoken.rs:116:13
[INFO] [stdout]     |
[INFO] [stdout] 116 |         let sign_request = self.coconut.make_blind_sign_request(
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sign_request`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `deposit_new`
[INFO] [stdout]    --> examples/darktoken.rs:108:8
[INFO] [stdout]     |
[INFO] [stdout] 108 |     fn deposit_new(&self, value: u64) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `CommitProofBuilder`
[INFO] [stdout]    --> examples/darktoken.rs:374:8
[INFO] [stdout]     |
[INFO] [stdout] 374 | struct CommitProofBuilder<'a, R: darktoken::RngInstance> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `CommitProof`
[INFO] [stdout]    --> examples/darktoken.rs:392:8
[INFO] [stdout]     |
[INFO] [stdout] 392 | struct CommitProof {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> examples/darktoken.rs:398:8
[INFO] [stdout]     |
[INFO] [stdout] 398 |     fn new(
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `commitments`
[INFO] [stdout]    --> examples/darktoken.rs:412:8
[INFO] [stdout]     |
[INFO] [stdout] 412 |     fn commitments(&self) -> Box<dyn darktoken::ProofCommitments + 'a> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `finish`
[INFO] [stdout]    --> examples/darktoken.rs:422:8
[INFO] [stdout]     |
[INFO] [stdout] 422 |     fn finish(&self, challenge: &bls::Scalar) -> CommitProof {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `commitments`
[INFO] [stdout]    --> examples/darktoken.rs:441:8
[INFO] [stdout]     |
[INFO] [stdout] 441 |     fn commitments<'a, R: darktoken::RngInstance>(
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> examples/darktoken.rs:779:9
[INFO] [stdout]     |
[INFO] [stdout] 779 |         fs::remove_file(&token_path);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> examples/darktoken.rs:807:13
[INFO] [stdout]     |
[INFO] [stdout] 807 |             fs::remove_file(&token_path);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 18.85s
[INFO] running `Command { std: "docker" "inspect" "3b92144dd8d1549e01b048d7477acafed1b904afae910f4b286e00e55b30f366", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b92144dd8d1549e01b048d7477acafed1b904afae910f4b286e00e55b30f366", kill_on_drop: false }`
[INFO] [stdout] 3b92144dd8d1549e01b048d7477acafed1b904afae910f4b286e00e55b30f366
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f42d0a80709f26fd6b7c6dccd70ffef0c1fed28bcf3ce6e9265b1f3b099ff147
[INFO] running `Command { std: "docker" "start" "-a" "f42d0a80709f26fd6b7c6dccd70ffef0c1fed28bcf3ce6e9265b1f3b099ff147", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `App`, `Arg`, `SubCommand`
[INFO] [stderr]  --> examples/darktoken.rs:5:12
[INFO] [stderr]   |
[INFO] [stderr] 5 | use clap::{App, Arg, SubCommand};
[INFO] [stderr]   |            ^^^  ^^^  ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> examples/darktoken.rs:951:5
[INFO] [stderr]     |
[INFO] [stderr] 949 |       return;
[INFO] [stderr]     |       ------ any code following this expression is unreachable
[INFO] [stderr] 950 | 
[INFO] [stderr] 951 | /     let settings = CoconutSettings {
[INFO] [stderr] 952 | |         attributes: 2,
[INFO] [stderr] 953 | |
[INFO] [stderr] 954 | |         threshold: 5,
[INFO] [stderr] 955 | |         total: 7,
[INFO] [stderr] 956 | |     };
[INFO] [stderr]     | |______^ unreachable statement
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `token1`
[INFO] [stderr]    --> examples/darktoken.rs:986:13
[INFO] [stderr]     |
[INFO] [stderr] 986 |         Ok((token1, token2)) => println!("split worked."),
[INFO] [stderr]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_token1`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `token2`
[INFO] [stderr]    --> examples/darktoken.rs:986:21
[INFO] [stderr]     |
[INFO] [stderr] 986 |         Ok((token1, token2)) => println!("split worked."),
[INFO] [stderr]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_token2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sign_request`
[INFO] [stderr]    --> examples/darktoken.rs:116:13
[INFO] [stderr]     |
[INFO] [stderr] 116 |         let sign_request = self.coconut.make_blind_sign_request(
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sign_request`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `deposit_new`
[INFO] [stderr]    --> examples/darktoken.rs:108:8
[INFO] [stderr]     |
[INFO] [stderr] 108 |     fn deposit_new(&self, value: u64) {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `CommitProofBuilder`
[INFO] [stderr]    --> examples/darktoken.rs:374:8
[INFO] [stderr]     |
[INFO] [stderr] 374 | struct CommitProofBuilder<'a, R: darktoken::RngInstance> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `CommitProof`
[INFO] [stderr]    --> examples/darktoken.rs:392:8
[INFO] [stderr]     |
[INFO] [stderr] 392 | struct CommitProof {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> examples/darktoken.rs:398:8
[INFO] [stderr]     |
[INFO] [stderr] 398 |     fn new(
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `commitments`
[INFO] [stderr]    --> examples/darktoken.rs:412:8
[INFO] [stderr]     |
[INFO] [stderr] 412 |     fn commitments(&self) -> Box<dyn darktoken::ProofCommitments + 'a> {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `finish`
[INFO] [stderr]    --> examples/darktoken.rs:422:8
[INFO] [stderr]     |
[INFO] [stderr] 422 |     fn finish(&self, challenge: &bls::Scalar) -> CommitProof {
[INFO] [stderr]     |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `commitments`
[INFO] [stderr]    --> examples/darktoken.rs:441:8
[INFO] [stderr]     |
[INFO] [stderr] 441 |     fn commitments<'a, R: darktoken::RngInstance>(
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> examples/darktoken.rs:779:9
[INFO] [stderr]     |
[INFO] [stderr] 779 |         fs::remove_file(&token_path);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> examples/darktoken.rs:807:13
[INFO] [stderr]     |
[INFO] [stderr] 807 |             fs::remove_file(&token_path);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `from_string`
[INFO] [stderr]   --> examples/test.rs:39:8
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn from_string(&self, serialized: &str) -> Self {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `darktoken` (example "darktoken") generated 14 warnings
[INFO] [stderr] warning: `darktoken` (example "test") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/darktoken-a12f8acbab31a997)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test hashable::test_hash_to_point_g1affine ... ok
[INFO] [stdout] test parameters::test_parameters ... ok
[INFO] [stdout] test proofs::tests::test_signature_request_proof ... ok
[INFO] [stdout] test proofs::tests::test_credential_proof ... ok
[INFO] [stdout] test coconut::tests::test_multiparty_keygen ... ok
[INFO] [stdout] test coconut::tests::test_multiparty_coconut ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.78s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests darktoken
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f42d0a80709f26fd6b7c6dccd70ffef0c1fed28bcf3ce6e9265b1f3b099ff147", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f42d0a80709f26fd6b7c6dccd70ffef0c1fed28bcf3ce6e9265b1f3b099ff147", kill_on_drop: false }`
[INFO] [stdout] f42d0a80709f26fd6b7c6dccd70ffef0c1fed28bcf3ce6e9265b1f3b099ff147
