[INFO] fetching crate cyclotomic 0.2.0...
[INFO] testing cyclotomic-0.2.0 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate cyclotomic 0.2.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate cyclotomic 0.2.0
[INFO] finished tweaking crates.io crate cyclotomic 0.2.0
[INFO] tweaked toml for crates.io crate cyclotomic 0.2.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cyclotomic 0.2.0 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cyclotomic 0.2.0 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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] 52dd0e58cd33388ce38066586608b6225281f21f1d96bc14f54985be06cd15e2
[INFO] running `Command { std: "docker" "start" "-a" "52dd0e58cd33388ce38066586608b6225281f21f1d96bc14f54985be06cd15e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52dd0e58cd33388ce38066586608b6225281f21f1d96bc14f54985be06cd15e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52dd0e58cd33388ce38066586608b6225281f21f1d96bc14f54985be06cd15e2", kill_on_drop: false }`
[INFO] [stdout] 52dd0e58cd33388ce38066586608b6225281f21f1d96bc14f54985be06cd15e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d7080d16290d82273ae3b77b744c33ae1fbb3788043415abfe87557e146a9755
[INFO] running `Command { std: "docker" "start" "-a" "d7080d16290d82273ae3b77b744c33ae1fbb3788043415abfe87557e146a9755", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.4.10
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]    Compiling nom v6.2.1
[INFO] [stderr]    Compiling funty v1.1.0
[INFO] [stderr]    Compiling wyz v0.2.0
[INFO] [stderr]    Compiling ryu v1.0.11
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling rug v1.17.0
[INFO] [stderr]    Compiling os_str_bytes v6.3.0
[INFO] [stderr]    Compiling once_cell v1.13.1
[INFO] [stderr]    Compiling clap_lex v0.2.4
[INFO] [stderr]    Compiling combinations v0.1.0
[INFO] [stderr]    Compiling sexp v1.1.4
[INFO] [stderr]    Compiling jobserver v0.1.24
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling bitvec v0.19.6
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling antic v0.1.0
[INFO] [stderr]    Compiling regex v1.4.6
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling divisors v0.2.1
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling quickcheck v0.9.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.2.17
[INFO] [stderr]    Compiling quickcheck_macros v0.9.1
[INFO] [stderr]    Compiling clap v3.2.17
[INFO] [stderr]    Compiling cyclotomic v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected one of `)`, `,`, `.`, `?`, or an operator, found `:`
[INFO] [stdout]    --> src/fields/sparse/basis.rs:213:57
[INFO] [stdout]     |
[INFO] [stdout] 213 |                         &((k.clone() * n.clone()).into(): E / p.clone() + i.clone()),
[INFO] [stdout]     |                                                         ^ expected one of `)`, `,`, `.`, `?`, or an operator
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `)`, `,`, `.`, `?`, or an operator, found `:`
[INFO] [stdout]   --> src/fields/sparse/mul.rs:25:68
[INFO] [stdout]    |
[INFO] [stdout] 25 |                 let new_exp = ((exp1.clone() + exp2.clone()).into(): E) % z1.order.clone();
[INFO] [stdout]    |                                                                    ^ expected one of `)`, `,`, `.`, `?`, or an operator
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BigInt`, `BigRational`, `Signed`, and `ToPrimitive`
[INFO] [stdout]  --> src/divisors/euclid.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | use self::num::{BigInt, BigRational, Integer, One, Signed, ToPrimitive, Zero};
[INFO] [stdout]   |                 ^^^^^^  ^^^^^^^^^^^                ^^^^^^  ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BigInt`
[INFO] [stdout]  --> src/divisors/library_divisors.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use self::num::{BigInt, ToPrimitive, Zero};
[INFO] [stdout]   |                 ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Z`
[INFO] [stdout]  --> src/polynomial/substitute.rs:4:52
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::polynomial::polynomial::{Polynomial, Q, Z};
[INFO] [stdout]   |                                                    ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num::BigInt`
[INFO] [stdout]  --> src/prime_factors/recursive_prime_factorize.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use num::BigInt;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num::Integer`
[INFO] [stdout]  --> src/fields/mod.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use num::Integer;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `One`
[INFO] [stdout]  --> src/fields/sparse/mod.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | use self::num::{One, Zero};
[INFO] [stdout]   |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num::traits::Inv`
[INFO] [stdout]   --> src/fields/sparse/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use num::traits::Inv;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]   --> src/fields/sparse/mod.rs:14:24
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]    |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AddAssign` and `SubAssign`
[INFO] [stdout]   --> src/fields/sparse/mod.rs:16:16
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std::ops::{AddAssign, Mul, SubAssign};
[INFO] [stdout]    |                ^^^^^^^^^       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ExpCoeffMap`
[INFO] [stdout]  --> src/fields/sparse/add.rs:3:29
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::fields::sparse::{ExpCoeffMap, Number};
[INFO] [stdout]   |                             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Q` and `Z`
[INFO] [stdout]  --> src/fields/sparse/add.rs:4:67
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::fields::{AdditiveGroupElement, CyclotomicFieldElement, Q, Z};
[INFO] [stdout]   |                                                                   ^  ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::AddAssign`
[INFO] [stdout]  --> src/fields/sparse/add.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::ops::AddAssign;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::fields::util::*`
[INFO] [stdout]  --> src/fields/sparse/galois.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::fields::util::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert::TryInto`
[INFO] [stdout]  --> src/fields/sparse/galois.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Q`
[INFO] [stdout]  --> src/fields/sparse/mul.rs:4:73
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::fields::{CyclotomicFieldElement, MultiplicativeGroupElement, Q};
[INFO] [stdout]   |                                                                         ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert::TryInto`
[INFO] [stdout]  --> src/fields/sparse/mul.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Number_i64` should have an upper camel case name
[INFO] [stdout]    --> src/fields/sparse/mod.rs:276:6
[INFO] [stdout]     |
[INFO] [stdout] 276 | type Number_i64 = Number<i64, rug::Rational>;
[INFO] [stdout]     |      ^^^^^^^^^^ help: convert the identifier to upper camel case: `NumberI64`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Number_Z` should have an upper camel case name
[INFO] [stdout]    --> src/fields/sparse/mod.rs:277:6
[INFO] [stdout]     |
[INFO] [stdout] 277 | type Number_Z = Number<Z, rug::Rational>;
[INFO] [stdout]     |      ^^^^^^^^ help: convert the identifier to upper camel case: `NumberZ`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `One` and `Zero`
[INFO] [stdout]  --> src/fields/dense/mod.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | use self::num::{One, Zero};
[INFO] [stdout]   |                 ^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num::traits::Inv`
[INFO] [stdout]  --> src/fields/dense/mod.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use num::traits::Inv;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AddAssign` and `SubAssign`
[INFO] [stdout]   --> src/fields/dense/mod.rs:13:16
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::ops::{AddAssign, Mul, SubAssign};
[INFO] [stdout]    |                ^^^^^^^^^       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::fields::*`
[INFO] [stdout]   --> src/fields/dense/mod.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use crate::fields::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::fields::exponent::Exponent`
[INFO] [stdout]   --> src/fields/dense/mod.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use crate::fields::exponent::Exponent;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Z`
[INFO] [stdout]  --> src/fields/dense/add.rs:2:70
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::fields::{AdditiveGroupElement, CyclotomicFieldElement, Q, Z};
[INFO] [stdout]   |                                                                      ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::num::Zero`
[INFO] [stdout]  --> src/fields/dense/basis.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use super::num::Zero;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::fields::util::*`
[INFO] [stdout]  --> src/fields/dense/galois.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::fields::util::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::num::Zero`
[INFO] [stdout]  --> src/fields/dense/mul.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::num::Zero;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::fields::util::*`
[INFO] [stdout]  --> src/fields/structure/mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::fields::util::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num::Zero`
[INFO] [stdout]  --> src/fields/structure/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use num::Zero;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `FieldElement`
[INFO] [stdout]  --> src/fields/linear_algebra/mod.rs:1:45
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::fields::{CyclotomicFieldElement, FieldElement};
[INFO] [stdout]   |                                             ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AddAssign` and `MulAssign`
[INFO] [stdout]  --> src/fields/rational.rs:6:16
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::ops::{AddAssign, MulAssign};
[INFO] [stdout]   |                ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::fields::Q`
[INFO] [stdout]  --> src/character/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::fields::Q;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[macro_use]` attribute cannot be used on use statements
[INFO] [stdout]   --> src/fields/sparse/mod.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[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]    = help: `#[macro_use]` can be applied to modules, extern crates, and crates
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[macro_use]` attribute cannot be used on use statements
[INFO] [stdout]   --> src/fields/dense/mod.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[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]    = help: `#[macro_use]` can be applied to modules, extern crates, and crates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[macro_use]` attribute cannot be used on use statements
[INFO] [stdout]   --> src/fields/dense/mod.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[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]    = help: `#[macro_use]` can be applied to modules, extern crates, and crates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `&E: Exponent` is not satisfied
[INFO] [stdout]    --> src/fields/sparse/basis.rs:212:35
[INFO] [stdout]     |
[INFO] [stdout] 212 |                     let new_exp = Exponent::math_mod(
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^^ the trait `Exponent` is not implemented for `&E`
[INFO] [stdout]     |
[INFO] [stdout] help: consider borrowing here
[INFO] [stdout]     |
[INFO] [stdout] 212 |                     let new_exp = &Exponent::math_mod(
[INFO] [stdout]     |                                   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `&E` cannot be sent between threads safely
[INFO] [stdout]    --> src/fields/sparse/basis.rs:212:35
[INFO] [stdout]     |
[INFO] [stdout] 212 |                     let new_exp = Exponent::math_mod(
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^^ `&E` cannot be sent between threads safely
[INFO] [stdout]     |
[INFO] [stdout]     = note: required for `&E` to implement `Send`
[INFO] [stdout] note: required by a bound in `Exponent::math_mod`
[INFO] [stdout]    --> src/fields/exponent.rs:24:7
[INFO] [stdout]     |
[INFO] [stdout]  24 |     + Send
[INFO] [stdout]     |       ^^^^ required by this bound in `Exponent::math_mod`
[INFO] [stdout] ...
[INFO] [stdout]  75 |     fn math_mod(x: &Self, n: &Self) -> Self {
[INFO] [stdout]     |        -------- required by a bound in this associated function
[INFO] [stdout] help: consider further restricting type parameter `E` with trait `Sync`
[INFO] [stdout]     |
[INFO] [stdout] 120 |     E: Exponent + std::marker::Sync,
[INFO] [stdout]     |                 +++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Div`
[INFO] [stdout]  --> src/divisors/euclid.rs:5:16
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::ops::{Div, Sub};
[INFO] [stdout]   |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Sub`
[INFO] [stdout]  --> src/divisors/euclid.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::ops::{Div, Sub};
[INFO] [stdout]   |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Zero`
[INFO] [stdout]  --> src/fields/sparse/mod.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 | use self::num::{One, Zero};
[INFO] [stdout]   |                      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Mul`
[INFO] [stdout]   --> src/fields/sparse/mod.rs:16:27
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std::ops::{AddAssign, Mul, SubAssign};
[INFO] [stdout]    |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::fields::MultiplicativeGroupElement`
[INFO] [stdout]  --> src/fields/dense/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::fields::MultiplicativeGroupElement;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Mul`
[INFO] [stdout]   --> src/fields/dense/mod.rs:13:27
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::ops::{AddAssign, Mul, SubAssign};
[INFO] [stdout]    |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::fields`
[INFO] [stdout]   --> src/fields/sparse/mod.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use crate::fields::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Neg`
[INFO] [stdout]  --> src/polynomial/subtract.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::{AddAssign, Neg, Sub, SubAssign};
[INFO] [stdout]   |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::num::Zero`
[INFO] [stdout]  --> src/fields/sparse/mul.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::num::Zero;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::num::Zero`
[INFO] [stdout]  --> src/fields/sparse/basis.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use super::num::Zero;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Mul`
[INFO] [stdout]   --> src/fields/sparse/basis.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::ops::Mul;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::fields::MultiplicativeGroupElement`
[INFO] [stdout]  --> src/fields/sparse/mod.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::fields::MultiplicativeGroupElement;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/fields/dense/basis.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let mut n_div_powers = Exponent::factorise(&n);
[INFO] [stdout]     |         ----^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]    --> src/fields/rational.rs:157:5
[INFO] [stdout]     |
[INFO] [stdout] 157 |     fn is_zero(&self) -> bool {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stdout] 158 |         self.is_zero()
[INFO] [stdout]     |         -------------- recursive call site
[INFO] [stdout]     |
[INFO] [stdout]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout]     = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/parser.rs:30:45
[INFO] [stdout]    |
[INFO] [stdout] 30 |         FromStr::from_str((sign.map_or("", |s| "-").to_owned() + x).as_str())
[INFO] [stdout]    |                                             ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cyclotomic` (lib) due to 4 previous errors; 50 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "d7080d16290d82273ae3b77b744c33ae1fbb3788043415abfe87557e146a9755", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7080d16290d82273ae3b77b744c33ae1fbb3788043415abfe87557e146a9755", kill_on_drop: false }`
[INFO] [stdout] d7080d16290d82273ae3b77b744c33ae1fbb3788043415abfe87557e146a9755