[INFO] fetching crate reform 0.1.0...
[INFO] checking reform-0.1.0 against master#c756124775121dea0e640652c5ee3c89e3dd0eb4 for pr-154971
[INFO] extracting crate reform 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate reform 0.1.0
[INFO] finished tweaking crates.io crate reform 0.1.0
[INFO] tweaked toml for crates.io crate reform 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate reform 0.1.0 on toolchain c756124775121dea0e640652c5ee3c89e3dd0eb4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c756124775121dea0e640652c5ee3c89e3dd0eb4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c756124775121dea0e640652c5ee3c89e3dd0eb4" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 114 packages to latest compatible versions
[INFO] [stderr]       Adding bitflags v1.3.2 (available: v2.11.1)
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[INFO] [stderr]       Adding pest_derive v1.0.8 (available: v2.8.6)
[INFO] [stderr]       Adding rand v0.5.6 (available: v0.10.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c756124775121dea0e640652c5ee3c89e3dd0eb4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+c756124775121dea0e640652c5ee3c89e3dd0eb4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e6c8e5021b8d32fa2a8e4ce53705029efdb1a7f24a8acfd0d1931046fdc447bd
[INFO] running `Command { std: "docker" "start" "-a" "e6c8e5021b8d32fa2a8e4ce53705029efdb1a7f24a8acfd0d1931046fdc447bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6c8e5021b8d32fa2a8e4ce53705029efdb1a7f24a8acfd0d1931046fdc447bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6c8e5021b8d32fa2a8e4ce53705029efdb1a7f24a8acfd0d1931046fdc447bd", kill_on_drop: false }`
[INFO] [stdout] e6c8e5021b8d32fa2a8e4ce53705029efdb1a7f24a8acfd0d1931046fdc447bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+c756124775121dea0e640652c5ee3c89e3dd0eb4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a63c9e6424f34c8cbf6bfec61b224453dfefb8f61ef97a4cfca2b42a4c628546
[INFO] running `Command { std: "docker" "start" "-a" "a63c9e6424f34c8cbf6bfec61b224453dfefb8f61ef97a4cfca2b42a4c628546", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking crossbeam-utils v0.5.0
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.7.0
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]    Compiling ndarray v0.12.1
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling rug v1.29.0
[INFO] [stderr]     Checking log v0.4.29
[INFO] [stderr]    Compiling pest v1.0.6
[INFO] [stderr]     Checking az v1.3.0
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking chrono v0.4.44
[INFO] [stderr]     Checking crossbeam-epoch v0.5.2
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking fastdivide v0.2.0
[INFO] [stderr]     Checking crossbeam-epoch v0.6.1
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking crossbeam-deque v0.5.2
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking crossbeam-channel v0.2.6
[INFO] [stderr]     Checking crossbeam v0.4.1
[INFO] [stderr]    Compiling pest_derive v1.0.8
[INFO] [stderr]     Checking reform v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around function argument
[INFO] [stdout]    --> src/module.rs:232:74
[INFO] [stdout]     |
[INFO] [stdout] 232 |                         MatchOpt::Single(x) => StatementResult::Executed({ x.clone() }), // FIXME: it is not always executed!
[INFO] [stdout]     |                                                                          ^^         ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 232 -                         MatchOpt::Single(x) => StatementResult::Executed({ x.clone() }), // FIXME: it is not always executed!
[INFO] [stdout] 232 +                         MatchOpt::Single(x) => StatementResult::Executed(x.clone() ), // FIXME: it is not always executed!
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around function argument
[INFO] [stdout]    --> src/module.rs:233:79
[INFO] [stdout]     |
[INFO] [stdout] 233 |                         MatchOpt::SingleOwned(x) => StatementResult::Executed({ x }),
[INFO] [stdout]     |                                                                               ^^ ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 233 -                         MatchOpt::SingleOwned(x) => StatementResult::Executed({ x }),
[INFO] [stdout] 233 +                         MatchOpt::SingleOwned(x) => StatementResult::Executed(x ),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/parser/mod.rs:774:16
[INFO] [stdout]     |
[INFO] [stdout] 774 |     type Err = (String);
[INFO] [stdout]     |                ^      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 774 -     type Err = (String);
[INFO] [stdout] 774 +     type Err = String ;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/parser/mod.rs:783:16
[INFO] [stdout]     |
[INFO] [stdout] 783 |     type Err = (String);
[INFO] [stdout]     |                ^      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 783 -     type Err = (String);
[INFO] [stdout] 783 +     type Err = String ;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/poly/ring.rs:17:26
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn from_finite_field(&FiniteField) -> Self;
[INFO] [stdout]    |                          ^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &FiniteField`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` (part of `#[warn(rust_2018_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around function argument
[INFO] [stdout]    --> src/module.rs:232:74
[INFO] [stdout]     |
[INFO] [stdout] 232 |                         MatchOpt::Single(x) => StatementResult::Executed({ x.clone() }), // FIXME: it is not always executed!
[INFO] [stdout]     |                                                                          ^^         ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 232 -                         MatchOpt::Single(x) => StatementResult::Executed({ x.clone() }), // FIXME: it is not always executed!
[INFO] [stdout] 232 +                         MatchOpt::Single(x) => StatementResult::Executed(x.clone() ), // FIXME: it is not always executed!
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around function argument
[INFO] [stdout]    --> src/module.rs:233:79
[INFO] [stdout]     |
[INFO] [stdout] 233 |                         MatchOpt::SingleOwned(x) => StatementResult::Executed({ x }),
[INFO] [stdout]     |                                                                               ^^ ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 233 -                         MatchOpt::SingleOwned(x) => StatementResult::Executed({ x }),
[INFO] [stdout] 233 +                         MatchOpt::SingleOwned(x) => StatementResult::Executed(x ),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/parser/mod.rs:774:16
[INFO] [stdout]     |
[INFO] [stdout] 774 |     type Err = (String);
[INFO] [stdout]     |                ^      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 774 -     type Err = (String);
[INFO] [stdout] 774 +     type Err = String ;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/parser/mod.rs:783:16
[INFO] [stdout]     |
[INFO] [stdout] 783 |     type Err = (String);
[INFO] [stdout]     |                ^      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 783 -     type Err = (String);
[INFO] [stdout] 783 +     type Err = String ;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/poly/ring.rs:17:26
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn from_finite_field(&FiniteField) -> Self;
[INFO] [stdout]    |                          ^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &FiniteField`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` (part of `#[warn(rust_2018_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serialize.rs:89:50
[INFO] [stdout]    |
[INFO] [stdout] 89 | fn serialize_list(args: &[Element], buffer: &mut Write) -> usize {
[INFO] [stdout]    |                                                  ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 89 | fn serialize_list(args: &[Element], buffer: &mut dyn Write) -> usize {
[INFO] [stdout]    |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serialize.rs:98:34
[INFO] [stdout]    |
[INFO] [stdout] 98 | fn deserialize_list(buffer: &mut Read) -> Vec<Element> {
[INFO] [stdout]    |                                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 98 | fn deserialize_list(buffer: &mut dyn Read) -> Vec<Element> {
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serialize.rs:107:48
[INFO] [stdout]     |
[INFO] [stdout] 107 | fn serialize_integer(i: &Integer, buffer: &mut Write) -> usize {
[INFO] [stdout]     |                                                ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 107 | fn serialize_integer(i: &Integer, buffer: &mut dyn Write) -> usize {
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serialize.rs:130:37
[INFO] [stdout]     |
[INFO] [stdout] 130 | fn deserialize_integer(buffer: &mut Read) -> Result<Integer, Error> {
[INFO] [stdout]     |                                     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 130 | fn deserialize_integer(buffer: &mut dyn Read) -> Result<Integer, Error> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/poly/polynomial.rs:440:42
[INFO] [stdout]     |
[INFO] [stdout] 440 |     pub fn serialize(&self, buffer: &mut Write) -> usize {
[INFO] [stdout]     |                                          ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 440 |     pub fn serialize(&self, buffer: &mut dyn Write) -> usize {
[INFO] [stdout]     |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/poly/polynomial.rs:452:37
[INFO] [stdout]     |
[INFO] [stdout] 452 |     pub fn deserialize(buffer: &mut Read) -> Result<Polynomial, Error> {
[INFO] [stdout]     |                                     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 452 |     pub fn deserialize(buffer: &mut dyn Read) -> Result<Polynomial, Error> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serialize.rs:89:50
[INFO] [stdout]    |
[INFO] [stdout] 89 | fn serialize_list(args: &[Element], buffer: &mut Write) -> usize {
[INFO] [stdout]    |                                                  ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 89 | fn serialize_list(args: &[Element], buffer: &mut dyn Write) -> usize {
[INFO] [stdout]    |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serialize.rs:98:34
[INFO] [stdout]    |
[INFO] [stdout] 98 | fn deserialize_list(buffer: &mut Read) -> Vec<Element> {
[INFO] [stdout]    |                                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 98 | fn deserialize_list(buffer: &mut dyn Read) -> Vec<Element> {
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serialize.rs:107:48
[INFO] [stdout]     |
[INFO] [stdout] 107 | fn serialize_integer(i: &Integer, buffer: &mut Write) -> usize {
[INFO] [stdout]     |                                                ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 107 | fn serialize_integer(i: &Integer, buffer: &mut dyn Write) -> usize {
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serialize.rs:130:37
[INFO] [stdout]     |
[INFO] [stdout] 130 | fn deserialize_integer(buffer: &mut Read) -> Result<Integer, Error> {
[INFO] [stdout]     |                                     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 130 | fn deserialize_integer(buffer: &mut dyn Read) -> Result<Integer, Error> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serialize.rs:79:30
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub fn read(buffer: &mut Read) -> Result<SerializedTerm, Error> {
[INFO] [stdout]    |                              ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub fn read(buffer: &mut dyn Read) -> Result<SerializedTerm, Error> {
[INFO] [stdout]    |                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serialize.rs:162:42
[INFO] [stdout]     |
[INFO] [stdout] 162 |     pub fn serialize(&self, buffer: &mut Write) -> usize {
[INFO] [stdout]     |                                          ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 162 |     pub fn serialize(&self, buffer: &mut dyn Write) -> usize {
[INFO] [stdout]     |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serialize.rs:187:37
[INFO] [stdout]     |
[INFO] [stdout] 187 |     pub fn deserialize(buffer: &mut Read) -> Result<Number, Error> {
[INFO] [stdout]     |                                     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 187 |     pub fn deserialize(buffer: &mut dyn Read) -> Result<Number, Error> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serialize.rs:213:42
[INFO] [stdout]     |
[INFO] [stdout] 213 |     pub fn serialize(&self, buffer: &mut Write) -> usize {
[INFO] [stdout]     |                                          ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 213 |     pub fn serialize(&self, buffer: &mut dyn Write) -> usize {
[INFO] [stdout]     |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serialize.rs:232:37
[INFO] [stdout]     |
[INFO] [stdout] 232 |     pub fn deserialize(buffer: &mut Read) -> Result<MultivariatePolynomial<Number, u32>, Error> {
[INFO] [stdout]     |                                     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 232 |     pub fn deserialize(buffer: &mut dyn Read) -> Result<MultivariatePolynomial<Number, u32>, Error> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serialize.rs:259:42
[INFO] [stdout]     |
[INFO] [stdout] 259 |     pub fn serialize(&self, buffer: &mut Write) -> usize {
[INFO] [stdout]     |                                          ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 259 |     pub fn serialize(&self, buffer: &mut dyn Write) -> usize {
[INFO] [stdout]     |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serialize.rs:300:37
[INFO] [stdout]     |
[INFO] [stdout] 300 |     pub fn deserialize(buffer: &mut Read) -> Result<Element, Error> {
[INFO] [stdout]     |                                     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 300 |     pub fn deserialize(buffer: &mut dyn Read) -> Result<Element, Error> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/poly/polynomial.rs:440:42
[INFO] [stdout]     |
[INFO] [stdout] 440 |     pub fn serialize(&self, buffer: &mut Write) -> usize {
[INFO] [stdout]     |                                          ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 440 |     pub fn serialize(&self, buffer: &mut dyn Write) -> usize {
[INFO] [stdout]     |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/poly/polynomial.rs:452:37
[INFO] [stdout]     |
[INFO] [stdout] 452 |     pub fn deserialize(buffer: &mut Read) -> Result<Polynomial, Error> {
[INFO] [stdout]     |                                     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 452 |     pub fn deserialize(buffer: &mut dyn Read) -> Result<Polynomial, Error> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serialize.rs:79:30
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub fn read(buffer: &mut Read) -> Result<SerializedTerm, Error> {
[INFO] [stdout]    |                              ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub fn read(buffer: &mut dyn Read) -> Result<SerializedTerm, Error> {
[INFO] [stdout]    |                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serialize.rs:162:42
[INFO] [stdout]     |
[INFO] [stdout] 162 |     pub fn serialize(&self, buffer: &mut Write) -> usize {
[INFO] [stdout]     |                                          ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 162 |     pub fn serialize(&self, buffer: &mut dyn Write) -> usize {
[INFO] [stdout]     |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serialize.rs:187:37
[INFO] [stdout]     |
[INFO] [stdout] 187 |     pub fn deserialize(buffer: &mut Read) -> Result<Number, Error> {
[INFO] [stdout]     |                                     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 187 |     pub fn deserialize(buffer: &mut dyn Read) -> Result<Number, Error> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serialize.rs:213:42
[INFO] [stdout]     |
[INFO] [stdout] 213 |     pub fn serialize(&self, buffer: &mut Write) -> usize {
[INFO] [stdout]     |                                          ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 213 |     pub fn serialize(&self, buffer: &mut dyn Write) -> usize {
[INFO] [stdout]     |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serialize.rs:232:37
[INFO] [stdout]     |
[INFO] [stdout] 232 |     pub fn deserialize(buffer: &mut Read) -> Result<MultivariatePolynomial<Number, u32>, Error> {
[INFO] [stdout]     |                                     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 232 |     pub fn deserialize(buffer: &mut dyn Read) -> Result<MultivariatePolynomial<Number, u32>, Error> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serialize.rs:259:42
[INFO] [stdout]     |
[INFO] [stdout] 259 |     pub fn serialize(&self, buffer: &mut Write) -> usize {
[INFO] [stdout]     |                                          ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 259 |     pub fn serialize(&self, buffer: &mut dyn Write) -> usize {
[INFO] [stdout]     |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serialize.rs:300:37
[INFO] [stdout]     |
[INFO] [stdout] 300 |     pub fn deserialize(buffer: &mut Read) -> Result<Element, Error> {
[INFO] [stdout]     |                                     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 300 |     pub fn deserialize(buffer: &mut dyn Read) -> Result<Element, Error> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `to_string_radix` found for reference `&rug::Integer` in the current scope
[INFO] [stdout]    --> src/number.rs:158:56
[INFO] [stdout]     |
[INFO] [stdout] 158 |             Number::BigInt(ref i) => write!(f, "{}", i.to_string_radix(10)),
[INFO] [stdout]     |                                                        ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `to_string` with a similar name, but with different arguments
[INFO] [stdout]    --> /rustc/c756124775121dea0e640652c5ee3c89e3dd0eb4/library/alloc/src/string.rs:2880:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `to_string_radix` found for reference `&rug::Integer` in the current scope
[INFO] [stdout]    --> src/number.rs:158:56
[INFO] [stdout]     |
[INFO] [stdout] 158 |             Number::BigInt(ref i) => write!(f, "{}", i.to_string_radix(10)),
[INFO] [stdout]     |                                                        ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `to_string` with a similar name, but with different arguments
[INFO] [stdout]    --> /rustc/c756124775121dea0e640652c5ee3c89e3dd0eb4/library/alloc/src/string.rs:2880:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `to_string_radix` found for reference `&Box<Rational>` in the current scope
[INFO] [stdout]    --> src/number.rs:159:56
[INFO] [stdout]     |
[INFO] [stdout] 159 |             Number::BigRat(ref r) => write!(f, "{}", r.to_string_radix(10)),
[INFO] [stdout]     |                                                        ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `to_string` with a similar name, but with different arguments
[INFO] [stdout]    --> /rustc/c756124775121dea0e640652c5ee3c89e3dd0eb4/library/alloc/src/string.rs:2880:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `to_string_radix` found for reference `&Box<Rational>` in the current scope
[INFO] [stdout]    --> src/number.rs:159:56
[INFO] [stdout]     |
[INFO] [stdout] 159 |             Number::BigRat(ref r) => write!(f, "{}", r.to_string_radix(10)),
[INFO] [stdout]     |                                                        ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `to_string` with a similar name, but with different arguments
[INFO] [stdout]    --> /rustc/c756124775121dea0e640652c5ee3c89e3dd0eb4/library/alloc/src/string.rs:2880:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/serialize.rs:137:12
[INFO] [stdout]     |
[INFO] [stdout] 137 |         d: 0 as *mut u64,
[INFO] [stdout]     |            ^^^^^^^^^^^^^ expected `NonNull<u64>`, found `*mut u64`
[INFO] [stdout]     |
[INFO] [stdout]     = note:   expected struct `NonNull<u64>`
[INFO] [stdout]             found raw pointer `*mut u64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/serialize.rs:137:12
[INFO] [stdout]     |
[INFO] [stdout] 137 |         d: 0 as *mut u64,
[INFO] [stdout]     |            ^^^^^^^^^^^^^ expected `NonNull<u64>`, found `*mut u64`
[INFO] [stdout]     |
[INFO] [stdout]     = note:   expected struct `NonNull<u64>`
[INFO] [stdout]             found raw pointer `*mut u64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/structure.rs:277:31
[INFO] [stdout]     |
[INFO] [stdout] 277 |                 Entry::Vacant(mut a) => {
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/structure.rs:277:31
[INFO] [stdout]     |
[INFO] [stdout] 277 |                 Entry::Vacant(mut a) => {
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/module.rs:331:25
[INFO] [stdout]     |
[INFO] [stdout] 331 |                     let mut i = mem::replace(input, Element::default());
[INFO] [stdout]     |                         ----^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/module.rs:669:21
[INFO] [stdout]     |
[INFO] [stdout] 669 |                 let mut dp = local_var_info
[INFO] [stdout]     |                     ----^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/module.rs:858:25
[INFO] [stdout]     |
[INFO] [stdout] 858 |                     let mut dollar = mem::replace(
[INFO] [stdout]     |                         ----^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/module.rs:1328:21
[INFO] [stdout]      |
[INFO] [stdout] 1328 |                 let mut output_mutarc = Arc::new(Mutex::new(output));
[INFO] [stdout]      |                     ----^^^^^^^^^^^^^
[INFO] [stdout]      |                     |
[INFO] [stdout]      |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/module.rs:1492:52
[INFO] [stdout]      |
[INFO] [stdout] 1492 |                 Statement::NewFunction(name, args, mut e) => {
[INFO] [stdout]      |                                                    ----^
[INFO] [stdout]      |                                                    |
[INFO] [stdout]      |                                                    help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/module.rs:1508:29
[INFO] [stdout]      |
[INFO] [stdout] 1508 |                         let mut dp = self
[INFO] [stdout]      |                             ----^^
[INFO] [stdout]      |                             |
[INFO] [stdout]      |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/module.rs:1534:33
[INFO] [stdout]      |
[INFO] [stdout] 1534 | ...                   let mut dollar = mem::replace(
[INFO] [stdout]      |                           ----^^^^^^
[INFO] [stdout]      |                           |
[INFO] [stdout]      |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/normalize.rs:178:29
[INFO] [stdout]     |
[INFO] [stdout] 178 |                         let mut ar = Polynomial::from(&a[0]);
[INFO] [stdout]     |                             ----^^
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/normalize.rs:179:29
[INFO] [stdout]     |
[INFO] [stdout] 179 |                         let mut br = Polynomial::from(&a[1]);
[INFO] [stdout]     |                             ----^^
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/module.rs:331:25
[INFO] [stdout]     |
[INFO] [stdout] 331 |                     let mut i = mem::replace(input, Element::default());
[INFO] [stdout]     |                         ----^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/module.rs:669:21
[INFO] [stdout]     |
[INFO] [stdout] 669 |                 let mut dp = local_var_info
[INFO] [stdout]     |                     ----^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/module.rs:858:25
[INFO] [stdout]     |
[INFO] [stdout] 858 |                     let mut dollar = mem::replace(
[INFO] [stdout]     |                         ----^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/module.rs:1328:21
[INFO] [stdout]      |
[INFO] [stdout] 1328 |                 let mut output_mutarc = Arc::new(Mutex::new(output));
[INFO] [stdout]      |                     ----^^^^^^^^^^^^^
[INFO] [stdout]      |                     |
[INFO] [stdout]      |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/module.rs:1492:52
[INFO] [stdout]      |
[INFO] [stdout] 1492 |                 Statement::NewFunction(name, args, mut e) => {
[INFO] [stdout]      |                                                    ----^
[INFO] [stdout]      |                                                    |
[INFO] [stdout]      |                                                    help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/module.rs:1508:29
[INFO] [stdout]      |
[INFO] [stdout] 1508 |                         let mut dp = self
[INFO] [stdout]      |                             ----^^
[INFO] [stdout]      |                             |
[INFO] [stdout]      |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/module.rs:1534:33
[INFO] [stdout]      |
[INFO] [stdout] 1534 | ...                   let mut dollar = mem::replace(
[INFO] [stdout]      |                           ----^^^^^^
[INFO] [stdout]      |                           |
[INFO] [stdout]      |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/normalize.rs:178:29
[INFO] [stdout]     |
[INFO] [stdout] 178 |                         let mut ar = Polynomial::from(&a[0]);
[INFO] [stdout]     |                             ----^^
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/normalize.rs:179:29
[INFO] [stdout]     |
[INFO] [stdout] 179 |                         let mut br = Polynomial::from(&a[1]);
[INFO] [stdout]     |                             ----^^
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser/mod.rs:154:17
[INFO] [stdout]     |
[INFO] [stdout] 154 |             let mut ee = p.into_span().as_str().to_string();
[INFO] [stdout]     |                 ----^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser/mod.rs:409:17
[INFO] [stdout]     |
[INFO] [stdout] 409 |             let mut d = parse_dollar(r.next().unwrap());
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser/mod.rs:433:17
[INFO] [stdout]     |
[INFO] [stdout] 433 |             let mut d = parse_dollar(r.next().unwrap());
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser/mod.rs:447:17
[INFO] [stdout]     |
[INFO] [stdout] 447 |             let mut m = parse_expr(r.next().unwrap());
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/poly/polynomial.rs:46:35
[INFO] [stdout]    |
[INFO] [stdout] 46 |                     Entry::Vacant(mut v) => {
[INFO] [stdout]    |                                   ----^
[INFO] [stdout]    |                                   |
[INFO] [stdout]    |                                   help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/poly/polynomial.rs:66:47
[INFO] [stdout]    |
[INFO] [stdout] 66 | ...                   Entry::Vacant(mut v) => {
[INFO] [stdout]    |                                     ----^
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/poly/polynomial.rs:127:21
[INFO] [stdout]     |
[INFO] [stdout] 127 |                 let mut exp = vec![e as u32];
[INFO] [stdout]     |                     ----^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/poly/polynomial.rs:152:21
[INFO] [stdout]     |
[INFO] [stdout] 152 |                 let mut poly = MultivariatePolynomial::from_monomial(c, exp);
[INFO] [stdout]     |                     ----^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/poly/polynomial.rs:212:31
[INFO] [stdout]     |
[INFO] [stdout] 212 |                 Entry::Vacant(mut v) => {
[INFO] [stdout]     |                               ----^
[INFO] [stdout]     |                               |
[INFO] [stdout]     |                               help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser/mod.rs:154:17
[INFO] [stdout]     |
[INFO] [stdout] 154 |             let mut ee = p.into_span().as_str().to_string();
[INFO] [stdout]     |                 ----^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/poly/raw/gcd.rs:729:31
[INFO] [stdout]     |
[INFO] [stdout] 729 |                 Entry::Vacant(mut e) => {
[INFO] [stdout]     |                               ----^
[INFO] [stdout]     |                               |
[INFO] [stdout]     |                               help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser/mod.rs:409:17
[INFO] [stdout]     |
[INFO] [stdout] 409 |             let mut d = parse_dollar(r.next().unwrap());
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser/mod.rs:433:17
[INFO] [stdout]     |
[INFO] [stdout] 433 |             let mut d = parse_dollar(r.next().unwrap());
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser/mod.rs:447:17
[INFO] [stdout]     |
[INFO] [stdout] 447 |             let mut m = parse_expr(r.next().unwrap());
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/poly/polynomial.rs:46:35
[INFO] [stdout]    |
[INFO] [stdout] 46 |                     Entry::Vacant(mut v) => {
[INFO] [stdout]    |                                   ----^
[INFO] [stdout]    |                                   |
[INFO] [stdout]    |                                   help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/poly/polynomial.rs:66:47
[INFO] [stdout]    |
[INFO] [stdout] 66 | ...                   Entry::Vacant(mut v) => {
[INFO] [stdout]    |                                     ----^
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/poly/polynomial.rs:127:21
[INFO] [stdout]     |
[INFO] [stdout] 127 |                 let mut exp = vec![e as u32];
[INFO] [stdout]     |                     ----^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/poly/polynomial.rs:152:21
[INFO] [stdout]     |
[INFO] [stdout] 152 |                 let mut poly = MultivariatePolynomial::from_monomial(c, exp);
[INFO] [stdout]     |                     ----^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/poly/raw/gcd.rs:1348:25
[INFO] [stdout]      |
[INFO] [stdout] 1348 |                     let mut vvars = vars
[INFO] [stdout]      |                         ----^^^^^
[INFO] [stdout]      |                         |
[INFO] [stdout]      |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/poly/polynomial.rs:212:31
[INFO] [stdout]     |
[INFO] [stdout] 212 |                 Entry::Vacant(mut v) => {
[INFO] [stdout]     |                               ----^
[INFO] [stdout]     |                               |
[INFO] [stdout]     |                               help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/poly/raw/gcd.rs:1660:25
[INFO] [stdout]      |
[INFO] [stdout] 1660 |                     let mut gmc = &mut gm.coefficients[t];
[INFO] [stdout]      |                         ----^^^
[INFO] [stdout]      |                         |
[INFO] [stdout]      |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/poly/raw/gcd.rs:1661:25
[INFO] [stdout]      |
[INFO] [stdout] 1661 |                     let mut coeff = if *gmc < Number::SmallInt(0) {
[INFO] [stdout]      |                         ----^^^^^
[INFO] [stdout]      |                         |
[INFO] [stdout]      |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/poly/raw/multivar.rs:930:17
[INFO] [stdout]     |
[INFO] [stdout] 930 |             let mut c = self.coefficients[t].clone() * v.clone().pow(self.exponents(t)[n].as_());
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/poly/raw/multivar.rs:973:31
[INFO] [stdout]     |
[INFO] [stdout] 973 |                 Entry::Vacant(mut e) => {
[INFO] [stdout]     |                               ----^
[INFO] [stdout]     |                               |
[INFO] [stdout]     |                               help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/poly/raw/gcd.rs:729:31
[INFO] [stdout]     |
[INFO] [stdout] 729 |                 Entry::Vacant(mut e) => {
[INFO] [stdout]     |                               ----^
[INFO] [stdout]     |                               |
[INFO] [stdout]     |                               help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/poly/raw/gcd.rs:1348:25
[INFO] [stdout]      |
[INFO] [stdout] 1348 |                     let mut vvars = vars
[INFO] [stdout]      |                         ----^^^^^
[INFO] [stdout]      |                         |
[INFO] [stdout]      |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/poly/raw/gcd.rs:1660:25
[INFO] [stdout]      |
[INFO] [stdout] 1660 |                     let mut gmc = &mut gm.coefficients[t];
[INFO] [stdout]      |                         ----^^^
[INFO] [stdout]      |                         |
[INFO] [stdout]      |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/poly/raw/gcd.rs:1661:25
[INFO] [stdout]      |
[INFO] [stdout] 1661 |                     let mut coeff = if *gmc < Number::SmallInt(0) {
[INFO] [stdout]      |                         ----^^^^^
[INFO] [stdout]      |                         |
[INFO] [stdout]      |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/poly/raw/multivar.rs:930:17
[INFO] [stdout]     |
[INFO] [stdout] 930 |             let mut c = self.coefficients[t].clone() * v.clone().pow(self.exponents(t)[n].as_());
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/poly/raw/multivar.rs:973:31
[INFO] [stdout]     |
[INFO] [stdout] 973 |                 Entry::Vacant(mut e) => {
[INFO] [stdout]     |                               ----^
[INFO] [stdout]     |                               |
[INFO] [stdout]     |                               help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `reform` (lib test) due to 3 previous errors; 43 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] Some errors have detailed explanations: E0308, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `reform` (lib) due to 3 previous errors; 43 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "a63c9e6424f34c8cbf6bfec61b224453dfefb8f61ef97a4cfca2b42a4c628546", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a63c9e6424f34c8cbf6bfec61b224453dfefb8f61ef97a4cfca2b42a4c628546", kill_on_drop: false }`
[INFO] [stdout] a63c9e6424f34c8cbf6bfec61b224453dfefb8f61ef97a4cfca2b42a4c628546
