[INFO] cloning repository https://github.com/pnyda/halo2-ccs-plus
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pnyda/halo2-ccs-plus" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpnyda%2Fhalo2-ccs-plus", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
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[INFO] checking pnyda/halo2-ccs-plus against try#9cbe924c1a7ad92a8d63366fe967735898f13b4d for pr-149195-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpnyda%2Fhalo2-ccs-plus" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
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[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-3-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/pnyda/halo2-ccs-plus
[INFO] finished tweaking git repo https://github.com/pnyda/halo2-ccs-plus
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[INFO] validating manifest of git repo https://github.com/pnyda/halo2-ccs-plus on toolchain 9cbe924c1a7ad92a8d63366fe967735898f13b4d
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[INFO] crate git repo https://github.com/pnyda/halo2-ccs-plus already has a lockfile, it will not be regenerated
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[INFO] [stderr]     Checking halo2ccs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0659]: `Error` is ambiguous
[INFO] [stdout]     --> src/ccs.rs:1208:40
[INFO] [stdout]      |
[INFO] [stdout] 1208 |     fn test_generate_z() -> Result<(), Error> {
[INFO] [stdout]      |                                        ^^^^^ ambiguous name
[INFO] [stdout]      |
[INFO] [stdout]      = note: ambiguous because of multiple glob imports of a name in the same module
[INFO] [stdout] note: `Error` could refer to the enum imported here
[INFO] [stdout]     --> src/ccs.rs:523:9
[INFO] [stdout]      |
[INFO] [stdout]  523 |     use super::*;
[INFO] [stdout]      |         ^^^^^^^^
[INFO] [stdout]      = help: consider adding an explicit import of `Error` to disambiguate
[INFO] [stdout] note: `Error` could also refer to the enum imported here
[INFO] [stdout]     --> src/ccs.rs:523:9
[INFO] [stdout]      |
[INFO] [stdout]  523 |     use super::*;
[INFO] [stdout]      |         ^^^^^^^^
[INFO] [stdout]      = help: consider adding an explicit import of `Error` to disambiguate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0659]: `Error` is ambiguous
[INFO] [stdout]     --> src/ccs.rs:1312:52
[INFO] [stdout]      |
[INFO] [stdout] 1312 |     fn test_generate_z_corner_case() -> Result<(), Error> {
[INFO] [stdout]      |                                                    ^^^^^ ambiguous name
[INFO] [stdout]      |
[INFO] [stdout]      = note: ambiguous because of multiple glob imports of a name in the same module
[INFO] [stdout] note: `Error` could refer to the enum imported here
[INFO] [stdout]     --> src/ccs.rs:523:9
[INFO] [stdout]      |
[INFO] [stdout]  523 |     use super::*;
[INFO] [stdout]      |         ^^^^^^^^
[INFO] [stdout]      = help: consider adding an explicit import of `Error` to disambiguate
[INFO] [stdout] note: `Error` could also refer to the enum imported here
[INFO] [stdout]     --> src/ccs.rs:523:9
[INFO] [stdout]      |
[INFO] [stdout]  523 |     use super::*;
[INFO] [stdout]      |         ^^^^^^^^
[INFO] [stdout]      = help: consider adding an explicit import of `Error` to disambiguate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0659]: `Error` is ambiguous
[INFO] [stdout]     --> src/ccs.rs:1356:57
[INFO] [stdout]      |
[INFO] [stdout] 1356 |     fn test_generate_naive_ccs_instance() -> Result<(), Error> {
[INFO] [stdout]      |                                                         ^^^^^ ambiguous name
[INFO] [stdout]      |
[INFO] [stdout]      = note: ambiguous because of multiple glob imports of a name in the same module
[INFO] [stdout] note: `Error` could refer to the enum imported here
[INFO] [stdout]     --> src/ccs.rs:523:9
[INFO] [stdout]      |
[INFO] [stdout]  523 |     use super::*;
[INFO] [stdout]      |         ^^^^^^^^
[INFO] [stdout]      = help: consider adding an explicit import of `Error` to disambiguate
[INFO] [stdout] note: `Error` could also refer to the enum imported here
[INFO] [stdout]     --> src/ccs.rs:523:9
[INFO] [stdout]      |
[INFO] [stdout]  523 |     use super::*;
[INFO] [stdout]      |         ^^^^^^^^
[INFO] [stdout]      = help: consider adding an explicit import of `Error` to disambiguate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `Error` is ambiguous
[INFO] [stdout]   --> src/ccs.rs:56:21
[INFO] [stdout]    |
[INFO] [stdout] 56 | ) -> Result<CCS<F>, Error> {
[INFO] [stdout]    |                     ^^^^^ ambiguous name
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #114095 <https://github.com/rust-lang/rust/issues/114095>
[INFO] [stdout]    = note: ambiguous because of multiple glob imports of a name in the same module
[INFO] [stdout] note: `Error` could refer to the enum imported here
[INFO] [stdout]   --> src/ccs.rs:2:5
[INFO] [stdout]    |
[INFO] [stdout]  2 | use crate::*;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    = help: consider adding an explicit import of `Error` to disambiguate
[INFO] [stdout] note: `Error` could also refer to the enum imported here
[INFO] [stdout]   --> src/ccs.rs:2:5
[INFO] [stdout]    |
[INFO] [stdout]  2 | use crate::*;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    = help: consider adding an explicit import of `Error` to disambiguate
[INFO] [stdout]    = note: `#[deny(ambiguous_glob_imports)]` (part of `#[deny(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `Error` is ambiguous
[INFO] [stdout]   --> src/ccs.rs:74:16
[INFO] [stdout]    |
[INFO] [stdout] 74 |         .ok_or(Error::NoWitness)?;
[INFO] [stdout]    |                ^^^^^ ambiguous name
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #114095 <https://github.com/rust-lang/rust/issues/114095>
[INFO] [stdout]    = note: ambiguous because of multiple glob imports of a name in the same module
[INFO] [stdout] note: `Error` could refer to the enum imported here
[INFO] [stdout]   --> src/ccs.rs:2:5
[INFO] [stdout]    |
[INFO] [stdout]  2 | use crate::*;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    = help: consider adding an explicit import of `Error` to disambiguate
[INFO] [stdout] note: `Error` could also refer to the enum imported here
[INFO] [stdout]   --> src/ccs.rs:2:5
[INFO] [stdout]    |
[INFO] [stdout]  2 | use crate::*;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    = help: consider adding an explicit import of `Error` to disambiguate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `Error` is ambiguous
[INFO] [stdout]    --> src/ccs.rs:172:21
[INFO] [stdout]     |
[INFO] [stdout] 172 | ) -> Result<CCS<F>, Error> {
[INFO] [stdout]     |                     ^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #114095 <https://github.com/rust-lang/rust/issues/114095>
[INFO] [stdout]     = note: ambiguous because of multiple glob imports of a name in the same module
[INFO] [stdout] note: `Error` could refer to the enum imported here
[INFO] [stdout]    --> src/ccs.rs:2:5
[INFO] [stdout]     |
[INFO] [stdout]   2 | use crate::*;
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `Error` to disambiguate
[INFO] [stdout] note: `Error` could also refer to the enum imported here
[INFO] [stdout]    --> src/ccs.rs:2:5
[INFO] [stdout]     |
[INFO] [stdout]   2 | use crate::*;
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `Error` to disambiguate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `Error` is ambiguous
[INFO] [stdout]    --> src/ccs.rs:487:28
[INFO] [stdout]     |
[INFO] [stdout] 487 | ) -> Result<Vec<ARKWORKS>, Error> {
[INFO] [stdout]     |                            ^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #114095 <https://github.com/rust-lang/rust/issues/114095>
[INFO] [stdout]     = note: ambiguous because of multiple glob imports of a name in the same module
[INFO] [stdout] note: `Error` could refer to the enum imported here
[INFO] [stdout]    --> src/ccs.rs:2:5
[INFO] [stdout]     |
[INFO] [stdout]   2 | use crate::*;
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `Error` to disambiguate
[INFO] [stdout] note: `Error` could also refer to the enum imported here
[INFO] [stdout]    --> src/ccs.rs:2:5
[INFO] [stdout]     |
[INFO] [stdout]   2 | use crate::*;
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `Error` to disambiguate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `Error` is ambiguous
[INFO] [stdout]    --> src/ccs.rs:495:16
[INFO] [stdout]     |
[INFO] [stdout] 495 |         .ok_or(Error::NoWitness)?;
[INFO] [stdout]     |                ^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #114095 <https://github.com/rust-lang/rust/issues/114095>
[INFO] [stdout]     = note: ambiguous because of multiple glob imports of a name in the same module
[INFO] [stdout] note: `Error` could refer to the enum imported here
[INFO] [stdout]    --> src/ccs.rs:2:5
[INFO] [stdout]     |
[INFO] [stdout]   2 | use crate::*;
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `Error` to disambiguate
[INFO] [stdout] note: `Error` could also refer to the enum imported here
[INFO] [stdout]    --> src/ccs.rs:2:5
[INFO] [stdout]     |
[INFO] [stdout]   2 | use crate::*;
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `Error` to disambiguate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `Error` is ambiguous
[INFO] [stdout]   --> src/ccs.rs:56:21
[INFO] [stdout]    |
[INFO] [stdout] 56 | ) -> Result<CCS<F>, Error> {
[INFO] [stdout]    |                     ^^^^^ ambiguous name
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #114095 <https://github.com/rust-lang/rust/issues/114095>
[INFO] [stdout]    = note: ambiguous because of multiple glob imports of a name in the same module
[INFO] [stdout] note: `Error` could refer to the enum imported here
[INFO] [stdout]   --> src/ccs.rs:2:5
[INFO] [stdout]    |
[INFO] [stdout]  2 | use crate::*;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    = help: consider adding an explicit import of `Error` to disambiguate
[INFO] [stdout] note: `Error` could also refer to the enum imported here
[INFO] [stdout]   --> src/ccs.rs:2:5
[INFO] [stdout]    |
[INFO] [stdout]  2 | use crate::*;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    = help: consider adding an explicit import of `Error` to disambiguate
[INFO] [stdout]    = note: `#[deny(ambiguous_glob_imports)]` (part of `#[deny(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `Error` is ambiguous
[INFO] [stdout]   --> src/ccs.rs:74:16
[INFO] [stdout]    |
[INFO] [stdout] 74 |         .ok_or(Error::NoWitness)?;
[INFO] [stdout]    |                ^^^^^ ambiguous name
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #114095 <https://github.com/rust-lang/rust/issues/114095>
[INFO] [stdout]    = note: ambiguous because of multiple glob imports of a name in the same module
[INFO] [stdout] note: `Error` could refer to the enum imported here
[INFO] [stdout]   --> src/ccs.rs:2:5
[INFO] [stdout]    |
[INFO] [stdout]  2 | use crate::*;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    = help: consider adding an explicit import of `Error` to disambiguate
[INFO] [stdout] note: `Error` could also refer to the enum imported here
[INFO] [stdout]   --> src/ccs.rs:2:5
[INFO] [stdout]    |
[INFO] [stdout]  2 | use crate::*;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    = help: consider adding an explicit import of `Error` to disambiguate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `Error` is ambiguous
[INFO] [stdout]    --> src/ccs.rs:172:21
[INFO] [stdout]     |
[INFO] [stdout] 172 | ) -> Result<CCS<F>, Error> {
[INFO] [stdout]     |                     ^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #114095 <https://github.com/rust-lang/rust/issues/114095>
[INFO] [stdout]     = note: ambiguous because of multiple glob imports of a name in the same module
[INFO] [stdout] note: `Error` could refer to the enum imported here
[INFO] [stdout]    --> src/ccs.rs:2:5
[INFO] [stdout]     |
[INFO] [stdout]   2 | use crate::*;
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `Error` to disambiguate
[INFO] [stdout] note: `Error` could also refer to the enum imported here
[INFO] [stdout]    --> src/ccs.rs:2:5
[INFO] [stdout]     |
[INFO] [stdout]   2 | use crate::*;
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `Error` to disambiguate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `Error` is ambiguous
[INFO] [stdout]    --> src/ccs.rs:487:28
[INFO] [stdout]     |
[INFO] [stdout] 487 | ) -> Result<Vec<ARKWORKS>, Error> {
[INFO] [stdout]     |                            ^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #114095 <https://github.com/rust-lang/rust/issues/114095>
[INFO] [stdout]     = note: ambiguous because of multiple glob imports of a name in the same module
[INFO] [stdout] note: `Error` could refer to the enum imported here
[INFO] [stdout]    --> src/ccs.rs:2:5
[INFO] [stdout]     |
[INFO] [stdout]   2 | use crate::*;
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `Error` to disambiguate
[INFO] [stdout] note: `Error` could also refer to the enum imported here
[INFO] [stdout]    --> src/ccs.rs:2:5
[INFO] [stdout]     |
[INFO] [stdout]   2 | use crate::*;
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `Error` to disambiguate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `Error` is ambiguous
[INFO] [stdout]    --> src/ccs.rs:495:16
[INFO] [stdout]     |
[INFO] [stdout] 495 |         .ok_or(Error::NoWitness)?;
[INFO] [stdout]     |                ^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #114095 <https://github.com/rust-lang/rust/issues/114095>
[INFO] [stdout]     = note: ambiguous because of multiple glob imports of a name in the same module
[INFO] [stdout] note: `Error` could refer to the enum imported here
[INFO] [stdout]    --> src/ccs.rs:2:5
[INFO] [stdout]     |
[INFO] [stdout]   2 | use crate::*;
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `Error` to disambiguate
[INFO] [stdout] note: `Error` could also refer to the enum imported here
[INFO] [stdout]    --> src/ccs.rs:2:5
[INFO] [stdout]     |
[INFO] [stdout]   2 | use crate::*;
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `Error` to disambiguate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `halo2ccs` (lib) due to 10 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0277]: `?` couldn't convert the error to `halo2_proofs::plonk::Error`
[INFO] [stdout]     --> src/ccs.rs:1294:63
[INFO] [stdout]      |
[INFO] [stdout] 1208 |     fn test_generate_z() -> Result<(), Error> {
[INFO] [stdout]      |                             ----------------- expected `halo2_proofs::plonk::Error` because of this
[INFO] [stdout] ...
[INFO] [stdout] 1294 |         plonkish_table.evaluate_lookup_inputs(&[lookup_input])?;
[INFO] [stdout]      |                        ---------------------------------------^ the trait `From<Error>` is not implemented for `halo2_proofs::plonk::Error`
[INFO] [stdout]      |                        |
[INFO] [stdout]      |                        this can't be annotated with `?` because it has type `Result<_, Error>`
[INFO] [stdout]      |
[INFO] [stdout] note: `Error` needs to implement `Into<halo2_proofs::plonk::Error>`
[INFO] [stdout]     --> src/lib.rs:44:1
[INFO] [stdout]      |
[INFO] [stdout]   44 | pub enum Error {
[INFO] [stdout]      | ^^^^^^^^^^^^^^
[INFO] [stdout]      = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stdout] help: the trait `From<Error>` is not implemented for `halo2_proofs::plonk::Error`
[INFO] [stdout]       but trait `From<std::io::Error>` is implemented for it
[INFO] [stdout]     --> /opt/rustwide/cargo-home/git/checkouts/halo2-e995c31908cff5ea/eaffe47/halo2_proofs/src/plonk/error.rs:45:1
[INFO] [stdout]      |
[INFO] [stdout]   45 | impl From<io::Error> for Error {
[INFO] [stdout]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      = help: for that trait implementation, expected `std::io::Error`, found `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `?` couldn't convert the error to `halo2_proofs::plonk::Error`
[INFO] [stdout]     --> src/ccs.rs:1296:64
[INFO] [stdout]      |
[INFO] [stdout] 1208 |     fn test_generate_z() -> Result<(), Error> {
[INFO] [stdout]      |                             ----------------- expected `halo2_proofs::plonk::Error` because of this
[INFO] [stdout] ...
[INFO] [stdout] 1296 |         let actual = generate_z(&plonkish_table, &cell_mapping)?;
[INFO] [stdout]      |                      ------------------------------------------^ the trait `From<Error>` is not implemented for `halo2_proofs::plonk::Error`
[INFO] [stdout]      |                      |
[INFO] [stdout]      |                      this can't be annotated with `?` because it has type `Result<_, Error>`
[INFO] [stdout]      |
[INFO] [stdout] note: `Error` needs to implement `Into<halo2_proofs::plonk::Error>`
[INFO] [stdout]     --> src/lib.rs:44:1
[INFO] [stdout]      |
[INFO] [stdout]   44 | pub enum Error {
[INFO] [stdout]      | ^^^^^^^^^^^^^^
[INFO] [stdout]      = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stdout] help: the trait `From<Error>` is not implemented for `halo2_proofs::plonk::Error`
[INFO] [stdout]       but trait `From<std::io::Error>` is implemented for it
[INFO] [stdout]     --> /opt/rustwide/cargo-home/git/checkouts/halo2-e995c31908cff5ea/eaffe47/halo2_proofs/src/plonk/error.rs:45:1
[INFO] [stdout]      |
[INFO] [stdout]   45 | impl From<io::Error> for Error {
[INFO] [stdout]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      = help: for that trait implementation, expected `std::io::Error`, found `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `?` couldn't convert the error to `halo2_proofs::plonk::Error`
[INFO] [stdout]     --> src/ccs.rs:1347:59
[INFO] [stdout]      |
[INFO] [stdout] 1312 |     fn test_generate_z_corner_case() -> Result<(), Error> {
[INFO] [stdout]      |                                         ----------------- expected `halo2_proofs::plonk::Error` because of this
[INFO] [stdout] ...
[INFO] [stdout] 1347 |         let z = generate_z(&plonkish_table, &cell_mapping)?;
[INFO] [stdout]      |                 ------------------------------------------^ the trait `From<Error>` is not implemented for `halo2_proofs::plonk::Error`
[INFO] [stdout]      |                 |
[INFO] [stdout]      |                 this can't be annotated with `?` because it has type `Result<_, Error>`
[INFO] [stdout]      |
[INFO] [stdout] note: `Error` needs to implement `Into<halo2_proofs::plonk::Error>`
[INFO] [stdout]     --> src/lib.rs:44:1
[INFO] [stdout]      |
[INFO] [stdout]   44 | pub enum Error {
[INFO] [stdout]      | ^^^^^^^^^^^^^^
[INFO] [stdout]      = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stdout] help: the trait `From<Error>` is not implemented for `halo2_proofs::plonk::Error`
[INFO] [stdout]       but trait `From<std::io::Error>` is implemented for it
[INFO] [stdout]     --> /opt/rustwide/cargo-home/git/checkouts/halo2-e995c31908cff5ea/eaffe47/halo2_proofs/src/plonk/error.rs:45:1
[INFO] [stdout]      |
[INFO] [stdout]   45 | impl From<io::Error> for Error {
[INFO] [stdout]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      = help: for that trait implementation, expected `std::io::Error`, found `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `?` couldn't convert the error to `halo2_proofs::plonk::Error`
[INFO] [stdout]     --> src/ccs.rs:1465:98
[INFO] [stdout]      |
[INFO] [stdout] 1356 |     fn test_generate_naive_ccs_instance() -> Result<(), Error> {
[INFO] [stdout]      |                                              ----------------- expected `halo2_proofs::plonk::Error` because of this
[INFO] [stdout] ...
[INFO] [stdout] 1465 |         let actual = generate_naive_ccs_instance(k, &custom_gates, &cell_mapping, &lookup_inputs)?;
[INFO] [stdout]      |                      ----------------------------------------------------------------------------^ the trait `From<Error>` is not implemented for `halo2_proofs::plonk::Error`
[INFO] [stdout]      |                      |
[INFO] [stdout]      |                      this can't be annotated with `?` because it has type `Result<_, Error>`
[INFO] [stdout]      |
[INFO] [stdout] note: `Error` needs to implement `Into<halo2_proofs::plonk::Error>`
[INFO] [stdout]     --> src/lib.rs:44:1
[INFO] [stdout]      |
[INFO] [stdout]   44 | pub enum Error {
[INFO] [stdout]      | ^^^^^^^^^^^^^^
[INFO] [stdout]      = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stdout] help: the trait `From<Error>` is not implemented for `halo2_proofs::plonk::Error`
[INFO] [stdout]       but trait `From<std::io::Error>` is implemented for it
[INFO] [stdout]     --> /opt/rustwide/cargo-home/git/checkouts/halo2-e995c31908cff5ea/eaffe47/halo2_proofs/src/plonk/error.rs:45:1
[INFO] [stdout]      |
[INFO] [stdout]   45 | impl From<io::Error> for Error {
[INFO] [stdout]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      = help: for that trait implementation, expected `std::io::Error`, found `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0659.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `halo2ccs` (lib test) due to 17 previous errors
[INFO] running `Command { std: "docker" "inspect" "5fdc4ef980022d44fbe2a8adac256fe469694aae6d9f7b1ca4ec8b0c22abfaef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fdc4ef980022d44fbe2a8adac256fe469694aae6d9f7b1ca4ec8b0c22abfaef", kill_on_drop: false }`
[INFO] [stdout] 5fdc4ef980022d44fbe2a8adac256fe469694aae6d9f7b1ca4ec8b0c22abfaef
