[INFO] cloning repository https://github.com/Sword-Smith/twenty-first
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Sword-Smith/twenty-first" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSword-Smith%2Ftwenty-first", kill_on_drop: false }`
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[INFO] [stdout] 0dba559e5f85cf147e8610e881a1e3460e756dbf
[INFO] checking Sword-Smith/twenty-first against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSword-Smith%2Ftwenty-first" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
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[INFO] finished tweaking git repo https://github.com/Sword-Smith/twenty-first
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[INFO] [stderr]     Checking arbitrary v1.3.2
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[INFO] [stderr]     Checking thiserror v1.0.58
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[INFO] [stderr]    Compiling attribute-derive-macro v0.6.1
[INFO] [stderr]     Checking bfieldcodec_derive v0.7.0 (/opt/rustwide/workdir/bfieldcodec_derive)
[INFO] [stderr]     Checking serde v1.0.197
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[INFO] [stderr]     Checking serde_json v1.0.115
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[INFO] [stderr]     Checking twenty-first v0.38.0 (/opt/rustwide/workdir/twenty-first)
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[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]  --> twenty-first/src/amount/u32s.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryFrom` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_big_array` is imported redundantly
[INFO] [stdout]   --> twenty-first/src/amount/u32s.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use serde_big_array;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^ the item `serde_big_array` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]  --> twenty-first/src/math/b_field_element.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryFrom` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Itertools` is imported redundantly
[INFO] [stdout]    --> twenty-first/src/util_types/mmr/mmr_accumulator.rs:283:9
[INFO] [stdout]     |
[INFO] [stdout] 283 |     use itertools::Itertools;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 289 |     use super::*;
[INFO] [stdout]     |         -------- the item `Itertools` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FromIterator` is imported redundantly
[INFO] [stdout]  --> twenty-first/src/util_types/mmr/mmr_membership_proof.rs:8:23
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::{fmt::Debug, iter::FromIterator};
[INFO] [stdout]   |                       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `FromIterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Send` is imported redundantly
[INFO] [stdout]  --> twenty-first/src/util_types/shared.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::marker::{Send, Sync};
[INFO] [stdout]   |                   ^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Send` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Sync` is imported redundantly
[INFO] [stdout]  --> twenty-first/src/util_types/shared.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::marker::{Send, Sync};
[INFO] [stdout]   |                         ^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Sync` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]  --> twenty-first/src/amount/u32s.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryFrom` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_big_array` is imported redundantly
[INFO] [stdout]   --> twenty-first/src/amount/u32s.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use serde_big_array;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^ the item `serde_big_array` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Rng` is imported redundantly
[INFO] [stdout]    --> twenty-first/src/amount/u32s.rs:389:9
[INFO] [stdout]     |
[INFO] [stdout] 389 |     use rand::Rng;
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 394 |     use super::*;
[INFO] [stdout]     |         -------- the item `Rng` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]  --> twenty-first/src/math/b_field_element.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryFrom` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Digest` is imported redundantly
[INFO] [stdout]    --> twenty-first/src/math/bfield_codec.rs:663:13
[INFO] [stdout]     |
[INFO] [stdout] 663 |         use crate::math::digest::Digest;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 670 |         use super::*;
[INFO] [stdout]     |             -------- the item `Digest` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Tip5` is imported redundantly
[INFO] [stdout]    --> twenty-first/src/math/bfield_codec.rs:664:13
[INFO] [stdout]     |
[INFO] [stdout] 664 |         use crate::math::tip5::Tip5;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 670 |         use super::*;
[INFO] [stdout]     |             -------- the item `Tip5` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `XFieldElement` is imported redundantly
[INFO] [stdout]    --> twenty-first/src/math/bfield_codec.rs:665:13
[INFO] [stdout]     |
[INFO] [stdout] 665 |         use crate::math::x_field_element::XFieldElement;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 670 |         use super::*;
[INFO] [stdout]     |             -------- the item `XFieldElement` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Itertools` is imported redundantly
[INFO] [stdout]    --> twenty-first/src/math/lattice.rs:817:9
[INFO] [stdout]     |
[INFO] [stdout] 817 |     use itertools::Itertools;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 829 |     use crate::math::lattice::*;
[INFO] [stdout]     |         ----------------------- the item `Itertools` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Zero` is imported redundantly
[INFO] [stdout]    --> twenty-first/src/math/lattice.rs:819:9
[INFO] [stdout]     |
[INFO] [stdout] 819 |     use num_traits::Zero;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 829 |     use crate::math::lattice::*;
[INFO] [stdout]     |         ----------------------- the item `Zero` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `BFieldElement` is imported redundantly
[INFO] [stdout]    --> twenty-first/src/math/lattice.rs:826:9
[INFO] [stdout]     |
[INFO] [stdout] 826 |     use crate::math::b_field_element::BFieldElement;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 829 |     use crate::math::lattice::*;
[INFO] [stdout]     |         ----------------------- the item `BFieldElement` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Itertools` is imported redundantly
[INFO] [stdout]    --> twenty-first/src/math/mds.rs:500:9
[INFO] [stdout]     |
[INFO] [stdout] 500 |     use itertools::Itertools;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 503 |     use super::*;
[INFO] [stdout]     |         -------- the item `Itertools` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `One` is imported redundantly
[INFO] [stdout]    --> twenty-first/src/math/ntt.rs:268:9
[INFO] [stdout]     |
[INFO] [stdout] 268 |     use num_traits::One;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 281 |     use super::*;
[INFO] [stdout]     |         -------- the item `One` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Zero` is imported redundantly
[INFO] [stdout]    --> twenty-first/src/math/ntt.rs:269:9
[INFO] [stdout]     |
[INFO] [stdout] 269 |     use num_traits::Zero;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 281 |     use super::*;
[INFO] [stdout]     |         -------- the item `Zero` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Rng` is imported redundantly
[INFO] [stdout]    --> twenty-first/src/math/tip5.rs:624:9
[INFO] [stdout]     |
[INFO] [stdout] 621 |     use proptest::prelude::*;
[INFO] [stdout]     |         -------------------- the item `Rng` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 624 |     use rand::Rng;
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `RngCore` is imported redundantly
[INFO] [stdout]    --> twenty-first/src/math/tip5.rs:625:9
[INFO] [stdout]     |
[INFO] [stdout] 621 |     use proptest::prelude::*;
[INFO] [stdout]     |         -------------------- the item `RngCore` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 625 |     use rand::RngCore;
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `DIGEST_LENGTH` is imported redundantly
[INFO] [stdout]    --> twenty-first/src/util_types/algebraic_hasher.rs:140:9
[INFO] [stdout]     |
[INFO] [stdout] 140 |     use crate::math::digest::DIGEST_LENGTH;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 144 |     use super::*;
[INFO] [stdout]     |         -------- the item `DIGEST_LENGTH` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `EXTENSION_DEGREE` is imported redundantly
[INFO] [stdout]    --> twenty-first/src/util_types/algebraic_hasher.rs:142:9
[INFO] [stdout]     |
[INFO] [stdout] 142 |     use crate::math::x_field_element::EXTENSION_DEGREE;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 143 |
[INFO] [stdout] 144 |     use super::*;
[INFO] [stdout]     |         -------- the item `EXTENSION_DEGREE` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Itertools` is imported redundantly
[INFO] [stdout]    --> twenty-first/src/util_types/merkle_tree.rs:563:9
[INFO] [stdout]     |
[INFO] [stdout] 563 |     use itertools::Itertools;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 573 |     use super::*;
[INFO] [stdout]     |         -------- the item `Itertools` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Itertools` is imported redundantly
[INFO] [stdout]    --> twenty-first/src/util_types/mmr/mmr_accumulator.rs:283:9
[INFO] [stdout]     |
[INFO] [stdout] 283 |     use itertools::Itertools;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 289 |     use super::*;
[INFO] [stdout]     |         -------- the item `Itertools` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Itertools` is imported redundantly
[INFO] [stdout]    --> twenty-first/src/util_types/mmr/mmr_accumulator.rs:429:9
[INFO] [stdout]     |
[INFO] [stdout] 429 |     use itertools::Itertools;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 443 |     use super::*;
[INFO] [stdout]     |         -------- the item `Itertools` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FromIterator` is imported redundantly
[INFO] [stdout]  --> twenty-first/src/util_types/mmr/mmr_membership_proof.rs:8:23
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::{fmt::Debug, iter::FromIterator};
[INFO] [stdout]   |                       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `FromIterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Digest` is imported redundantly
[INFO] [stdout]    --> twenty-first/src/util_types/mmr/mmr_membership_proof.rs:583:9
[INFO] [stdout]     |
[INFO] [stdout] 583 |     use crate::math::digest::Digest;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 591 |     use super::*;
[INFO] [stdout]     |         -------- the item `Digest` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Send` is imported redundantly
[INFO] [stdout]  --> twenty-first/src/util_types/shared.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::marker::{Send, Sync};
[INFO] [stdout]   |                   ^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Send` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Sync` is imported redundantly
[INFO] [stdout]  --> twenty-first/src/util_types/shared.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::marker::{Send, Sync};
[INFO] [stdout]   |                         ^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Sync` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `MmrAccumulator` is imported redundantly
[INFO] [stdout]    --> twenty-first/src/mock/mmr/mock_mmr.rs:375:9
[INFO] [stdout]     |
[INFO] [stdout] 375 |     use crate::util_types::mmr::mmr_accumulator::MmrAccumulator;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 379 |     use super::*;
[INFO] [stdout]     |         -------- the item `MmrAccumulator` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 25 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 12s
[INFO] running `Command { std: "docker" "inspect" "79397a17be6e12932287c8e9054bc20df7492f4a8722ee5cc4e08e4f42590139", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79397a17be6e12932287c8e9054bc20df7492f4a8722ee5cc4e08e4f42590139", kill_on_drop: false }`
[INFO] [stdout] 79397a17be6e12932287c8e9054bc20df7492f4a8722ee5cc4e08e4f42590139