[INFO] updating cached repository https://github.com/mhazoglou/complex
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/mhazoglou/complex
[INFO] [stderr]    a611fbf..f6219db  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f6219dbede58f7d7d69330d14481c51f9b23c592
[INFO] testing mhazoglou/complex against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmhazoglou%2Fcomplex" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mhazoglou/complex on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/mhazoglou/complex
[INFO] finished tweaking git repo https://github.com/mhazoglou/complex
[INFO] tweaked toml for git repo https://github.com/mhazoglou/complex written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/mhazoglou/complex already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6e3e4e35bea243b229b5cdc2ea47c1e5be401b595b8da8b8800ee08aae940406
[INFO] running `"docker" "start" "-a" "6e3e4e35bea243b229b5cdc2ea47c1e5be401b595b8da8b8800ee08aae940406"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling complex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `Product`, `Sum`
[INFO] [stderr]  --> src/lib.rs:1:17
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::iter::{Product, Sum};
[INFO] [stderr]   |                 ^^^^^^^  ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `str::FromStr`
[INFO] [stderr]  --> src/fmt.rs:2:16
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::{fmt, str::FromStr};
[INFO] [stderr]   |                ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::num::ParseFloatError`
[INFO] [stderr]  --> src/fmt.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::num::ParseFloatError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/lib.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | / macro_rules! forward_ref_un_op {
[INFO] [stderr] 27 | |     ($imp:ident, $method:ident, $t:ty, $T:tt) => {
[INFO] [stderr] 28 | |         impl<$T> $imp for &$t
[INFO] [stderr] 29 | |         where
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/lib.rs:40:1
[INFO] [stderr]    |
[INFO] [stderr] 40 | / macro_rules! forward_ref_bin_op {
[INFO] [stderr] 41 | |     ($imp:ident, $method:ident, $t:ty, $u:ty, $T:tt) => {
[INFO] [stderr] 42 | |         impl<$T> $imp<&$u> for $t
[INFO] [stderr] 43 | |         where
[INFO] [stderr] ...  |
[INFO] [stderr] 74 | |     };
[INFO] [stderr] 75 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/lib.rs:77:1
[INFO] [stderr]    |
[INFO] [stderr] 77 | / macro_rules! bin_op_assign {
[INFO] [stderr] 78 | |     ($assign:ident, $method:ident, $base_trait:ident,
[INFO] [stderr] 79 | |      $base_method:ident, $t:ty, $u:ty, $T:tt) => {
[INFO] [stderr] 80 | |         impl<$T> $assign<$u> for $t
[INFO] [stderr] ...  |
[INFO] [stderr] 89 | |     };
[INFO] [stderr] 90 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]    --> src/lib.rs:134:17
[INFO] [stderr]     |
[INFO] [stderr] 134 |                 fn exp(&self) -> Self {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stderr] 135 |                     self.exp()
[INFO] [stderr]     |                     ---------- recursive call site
[INFO] [stderr] ...
[INFO] [stderr] 256 | impl_functions_for_float!(f32, f64);
[INFO] [stderr]     | ------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stderr]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]    --> src/lib.rs:134:17
[INFO] [stderr]     |
[INFO] [stderr] 134 |                 fn exp(&self) -> Self {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stderr] 135 |                     self.exp()
[INFO] [stderr]     |                     ---------- recursive call site
[INFO] [stderr] ...
[INFO] [stderr] 256 | impl_functions_for_float!(f32, f64);
[INFO] [stderr]     | ------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]    --> src/lib.rs:138:17
[INFO] [stderr]     |
[INFO] [stderr] 138 |                 fn ln(&self) -> Self {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stderr] 139 |                     self.ln()
[INFO] [stderr]     |                     --------- recursive call site
[INFO] [stderr] ...
[INFO] [stderr] 256 | impl_functions_for_float!(f32, f64);
[INFO] [stderr]     | ------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]    --> src/lib.rs:142:17
[INFO] [stderr]     |
[INFO] [stderr] 142 |                 fn powf(&self, num: Self) -> Self {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stderr] 143 |                     self.powf(num)
[INFO] [stderr]     |                     -------------- recursive call site
[INFO] [stderr] ...
[INFO] [stderr] 256 | impl_functions_for_float!(f32, f64);
[INFO] [stderr]     | ------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]    --> src/lib.rs:162:17
[INFO] [stderr]     |
[INFO] [stderr] 162 |                 fn powi(&self, num: i32) -> Self {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stderr] 163 |                     self.powi(num)
[INFO] [stderr]     |                     -------------- recursive call site
[INFO] [stderr] ...
[INFO] [stderr] 256 | impl_functions_for_float!(f32, f64);
[INFO] [stderr]     | ------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: private trait `ops::InvReal` in public interface (error E0445)
[INFO] [stderr]    --> src/ops.rs:212:1
[INFO] [stderr]     |
[INFO] [stderr] 212 | / impl<T> Div for Complex<T>
[INFO] [stderr] 213 | | where
[INFO] [stderr] 214 | |     Complex<T>: Conjugate + Mul<Output = Complex<T>> + InvReal + Copy,
[INFO] [stderr] 215 | | {
[INFO] [stderr] ...   |
[INFO] [stderr] 220 | |     }
[INFO] [stderr] 221 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(private_in_public)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: 12 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]  --> src/main.rs:6:15
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let z3 =  (z / z2);//.floor();
[INFO] [stderr]   |               ^^^^^^^^ help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]  --> src/main.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let v = vec![z; 3];
[INFO] [stderr]   |         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.11s
[INFO] running `"docker" "inspect" "6e3e4e35bea243b229b5cdc2ea47c1e5be401b595b8da8b8800ee08aae940406"`
[INFO] running `"docker" "rm" "-f" "6e3e4e35bea243b229b5cdc2ea47c1e5be401b595b8da8b8800ee08aae940406"`
[INFO] [stdout] 6e3e4e35bea243b229b5cdc2ea47c1e5be401b595b8da8b8800ee08aae940406
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3e0b37d1e874f25005ee0617baa0c41b363edad9f570f01ec0d5d2c1eae33ba2
[INFO] running `"docker" "start" "-a" "3e0b37d1e874f25005ee0617baa0c41b363edad9f570f01ec0d5d2c1eae33ba2"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling complex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `Product`, `Sum`
[INFO] [stderr]  --> src/lib.rs:1:17
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::iter::{Product, Sum};
[INFO] [stderr]   |                 ^^^^^^^  ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `str::FromStr`
[INFO] [stderr]  --> src/fmt.rs:2:16
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::{fmt, str::FromStr};
[INFO] [stderr]   |                ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::num::ParseFloatError`
[INFO] [stderr]  --> src/fmt.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::num::ParseFloatError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/lib.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | / macro_rules! forward_ref_un_op {
[INFO] [stderr] 27 | |     ($imp:ident, $method:ident, $t:ty, $T:tt) => {
[INFO] [stderr] 28 | |         impl<$T> $imp for &$t
[INFO] [stderr] 29 | |         where
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/lib.rs:40:1
[INFO] [stderr]    |
[INFO] [stderr] 40 | / macro_rules! forward_ref_bin_op {
[INFO] [stderr] 41 | |     ($imp:ident, $method:ident, $t:ty, $u:ty, $T:tt) => {
[INFO] [stderr] 42 | |         impl<$T> $imp<&$u> for $t
[INFO] [stderr] 43 | |         where
[INFO] [stderr] ...  |
[INFO] [stderr] 74 | |     };
[INFO] [stderr] 75 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/lib.rs:77:1
[INFO] [stderr]    |
[INFO] [stderr] 77 | / macro_rules! bin_op_assign {
[INFO] [stderr] 78 | |     ($assign:ident, $method:ident, $base_trait:ident,
[INFO] [stderr] 79 | |      $base_method:ident, $t:ty, $u:ty, $T:tt) => {
[INFO] [stderr] 80 | |         impl<$T> $assign<$u> for $t
[INFO] [stderr] ...  |
[INFO] [stderr] 89 | |     };
[INFO] [stderr] 90 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]    --> src/lib.rs:134:17
[INFO] [stderr]     |
[INFO] [stderr] 134 |                 fn exp(&self) -> Self {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stderr] 135 |                     self.exp()
[INFO] [stderr]     |                     ---------- recursive call site
[INFO] [stderr] ...
[INFO] [stderr] 256 | impl_functions_for_float!(f32, f64);
[INFO] [stderr]     | ------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stderr]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]    --> src/lib.rs:134:17
[INFO] [stderr]     |
[INFO] [stderr] 134 |                 fn exp(&self) -> Self {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stderr] 135 |                     self.exp()
[INFO] [stderr]     |                     ---------- recursive call site
[INFO] [stderr] ...
[INFO] [stderr] 256 | impl_functions_for_float!(f32, f64);
[INFO] [stderr]     | ------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]    --> src/lib.rs:138:17
[INFO] [stderr]     |
[INFO] [stderr] 138 |                 fn ln(&self) -> Self {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stderr] 139 |                     self.ln()
[INFO] [stderr]     |                     --------- recursive call site
[INFO] [stderr] ...
[INFO] [stderr] 256 | impl_functions_for_float!(f32, f64);
[INFO] [stderr]     | ------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]    --> src/lib.rs:142:17
[INFO] [stderr]     |
[INFO] [stderr] 142 |                 fn powf(&self, num: Self) -> Self {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stderr] 143 |                     self.powf(num)
[INFO] [stderr]     |                     -------------- recursive call site
[INFO] [stderr] ...
[INFO] [stderr] 256 | impl_functions_for_float!(f32, f64);
[INFO] [stderr]     | ------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]    --> src/lib.rs:162:17
[INFO] [stderr]     |
[INFO] [stderr] 162 |                 fn powi(&self, num: i32) -> Self {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stderr] 163 |                     self.powi(num)
[INFO] [stderr]     |                     -------------- recursive call site
[INFO] [stderr] ...
[INFO] [stderr] 256 | impl_functions_for_float!(f32, f64);
[INFO] [stderr]     | ------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: private trait `ops::InvReal` in public interface (error E0445)
[INFO] [stderr]    --> src/ops.rs:212:1
[INFO] [stderr]     |
[INFO] [stderr] 212 | / impl<T> Div for Complex<T>
[INFO] [stderr] 213 | | where
[INFO] [stderr] 214 | |     Complex<T>: Conjugate + Mul<Output = Complex<T>> + InvReal + Copy,
[INFO] [stderr] 215 | | {
[INFO] [stderr] ...   |
[INFO] [stderr] 220 | |     }
[INFO] [stderr] 221 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(private_in_public)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: 12 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]  --> src/main.rs:6:15
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let z3 =  (z / z2);//.floor();
[INFO] [stderr]   |               ^^^^^^^^ help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]  --> src/main.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let v = vec![z; 3];
[INFO] [stderr]   |         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]  --> src/main.rs:6:15
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let z3 =  (z / z2);//.floor();
[INFO] [stderr]   |               ^^^^^^^^ help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Product`, `Sum`
[INFO] [stderr]  --> src/lib.rs:1:17
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::iter::{Product, Sum};
[INFO] [stderr]   |                 ^^^^^^^  ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `str::FromStr`
[INFO] [stderr]  --> src/fmt.rs:2:16
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::{fmt, str::FromStr};
[INFO] [stderr]   |                ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::num::ParseFloatError`
[INFO] [stderr]  --> src/fmt.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::num::ParseFloatError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/lib.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | / macro_rules! forward_ref_un_op {
[INFO] [stderr] 27 | |     ($imp:ident, $method:ident, $t:ty, $T:tt) => {
[INFO] [stderr] 28 | |         impl<$T> $imp for &$t
[INFO] [stderr] 29 | |         where
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/lib.rs:40:1
[INFO] [stderr]    |
[INFO] [stderr] 40 | / macro_rules! forward_ref_bin_op {
[INFO] [stderr] 41 | |     ($imp:ident, $method:ident, $t:ty, $u:ty, $T:tt) => {
[INFO] [stderr] 42 | |         impl<$T> $imp<&$u> for $t
[INFO] [stderr] 43 | |         where
[INFO] [stderr] ...  |
[INFO] [stderr] 74 | |     };
[INFO] [stderr] 75 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/lib.rs:77:1
[INFO] [stderr]    |
[INFO] [stderr] 77 | / macro_rules! bin_op_assign {
[INFO] [stderr] 78 | |     ($assign:ident, $method:ident, $base_trait:ident,
[INFO] [stderr] 79 | |      $base_method:ident, $t:ty, $u:ty, $T:tt) => {
[INFO] [stderr] 80 | |         impl<$T> $assign<$u> for $t
[INFO] [stderr] ...  |
[INFO] [stderr] 89 | |     };
[INFO] [stderr] 90 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]  --> src/main.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let v = vec![z; 3];
[INFO] [stderr]   |         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]    --> src/lib.rs:134:17
[INFO] [stderr]     |
[INFO] [stderr] 134 |                 fn exp(&self) -> Self {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stderr] 135 |                     self.exp()
[INFO] [stderr]     |                     ---------- recursive call site
[INFO] [stderr] ...
[INFO] [stderr] 256 | impl_functions_for_float!(f32, f64);
[INFO] [stderr]     | ------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stderr]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]    --> src/lib.rs:134:17
[INFO] [stderr]     |
[INFO] [stderr] 134 |                 fn exp(&self) -> Self {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stderr] 135 |                     self.exp()
[INFO] [stderr]     |                     ---------- recursive call site
[INFO] [stderr] ...
[INFO] [stderr] 256 | impl_functions_for_float!(f32, f64);
[INFO] [stderr]     | ------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]    --> src/lib.rs:138:17
[INFO] [stderr]     |
[INFO] [stderr] 138 |                 fn ln(&self) -> Self {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stderr] 139 |                     self.ln()
[INFO] [stderr]     |                     --------- recursive call site
[INFO] [stderr] ...
[INFO] [stderr] 256 | impl_functions_for_float!(f32, f64);
[INFO] [stderr]     | ------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]    --> src/lib.rs:142:17
[INFO] [stderr]     |
[INFO] [stderr] 142 |                 fn powf(&self, num: Self) -> Self {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stderr] 143 |                     self.powf(num)
[INFO] [stderr]     |                     -------------- recursive call site
[INFO] [stderr] ...
[INFO] [stderr] 256 | impl_functions_for_float!(f32, f64);
[INFO] [stderr]     | ------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]    --> src/lib.rs:162:17
[INFO] [stderr]     |
[INFO] [stderr] 162 |                 fn powi(&self, num: i32) -> Self {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stderr] 163 |                     self.powi(num)
[INFO] [stderr]     |                     -------------- recursive call site
[INFO] [stderr] ...
[INFO] [stderr] 256 | impl_functions_for_float!(f32, f64);
[INFO] [stderr]     | ------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: private trait `ops::InvReal` in public interface (error E0445)
[INFO] [stderr]    --> src/ops.rs:212:1
[INFO] [stderr]     |
[INFO] [stderr] 212 | / impl<T> Div for Complex<T>
[INFO] [stderr] 213 | | where
[INFO] [stderr] 214 | |     Complex<T>: Conjugate + Mul<Output = Complex<T>> + InvReal + Copy,
[INFO] [stderr] 215 | | {
[INFO] [stderr] ...   |
[INFO] [stderr] 220 | |     }
[INFO] [stderr] 221 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(private_in_public)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 12 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.13s
[INFO] running `"docker" "inspect" "3e0b37d1e874f25005ee0617baa0c41b363edad9f570f01ec0d5d2c1eae33ba2"`
[INFO] running `"docker" "rm" "-f" "3e0b37d1e874f25005ee0617baa0c41b363edad9f570f01ec0d5d2c1eae33ba2"`
[INFO] [stdout] 3e0b37d1e874f25005ee0617baa0c41b363edad9f570f01ec0d5d2c1eae33ba2
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ab88f1ffe6dc0a20f8bf42d8dd1b4bdf44afcf94fd5d5b0c0ee0d38da51291a7
[INFO] running `"docker" "start" "-a" "ab88f1ffe6dc0a20f8bf42d8dd1b4bdf44afcf94fd5d5b0c0ee0d38da51291a7"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused imports: `Product`, `Sum`
[INFO] [stderr]  --> src/lib.rs:1:17
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::iter::{Product, Sum};
[INFO] [stderr]   |                 ^^^^^^^  ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `str::FromStr`
[INFO] [stderr]  --> src/fmt.rs:2:16
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::{fmt, str::FromStr};
[INFO] [stderr]   |                ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::num::ParseFloatError`
[INFO] [stderr]  --> src/fmt.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::num::ParseFloatError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/lib.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | / macro_rules! forward_ref_un_op {
[INFO] [stderr] 27 | |     ($imp:ident, $method:ident, $t:ty, $T:tt) => {
[INFO] [stderr] 28 | |         impl<$T> $imp for &$t
[INFO] [stderr] 29 | |         where
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/lib.rs:40:1
[INFO] [stderr]    |
[INFO] [stderr] 40 | / macro_rules! forward_ref_bin_op {
[INFO] [stderr] 41 | |     ($imp:ident, $method:ident, $t:ty, $u:ty, $T:tt) => {
[INFO] [stderr] 42 | |         impl<$T> $imp<&$u> for $t
[INFO] [stderr] 43 | |         where
[INFO] [stderr] ...  |
[INFO] [stderr] 74 | |     };
[INFO] [stderr] 75 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/lib.rs:77:1
[INFO] [stderr]    |
[INFO] [stderr] 77 | / macro_rules! bin_op_assign {
[INFO] [stderr] 78 | |     ($assign:ident, $method:ident, $base_trait:ident,
[INFO] [stderr] 79 | |      $base_method:ident, $t:ty, $u:ty, $T:tt) => {
[INFO] [stderr] 80 | |         impl<$T> $assign<$u> for $t
[INFO] [stderr] ...  |
[INFO] [stderr] 89 | |     };
[INFO] [stderr] 90 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]    --> src/lib.rs:134:17
[INFO] [stderr]     |
[INFO] [stderr] 134 |                 fn exp(&self) -> Self {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stderr] 135 |                     self.exp()
[INFO] [stderr]     |                     ---------- recursive call site
[INFO] [stderr] ...
[INFO] [stderr] 256 | impl_functions_for_float!(f32, f64);
[INFO] [stderr]     | ------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stderr]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]    --> src/lib.rs:134:17
[INFO] [stderr]     |
[INFO] [stderr] 134 |                 fn exp(&self) -> Self {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stderr] 135 |                     self.exp()
[INFO] [stderr]     |                     ---------- recursive call site
[INFO] [stderr] ...
[INFO] [stderr] 256 | impl_functions_for_float!(f32, f64);
[INFO] [stderr]     | ------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]    --> src/lib.rs:138:17
[INFO] [stderr]     |
[INFO] [stderr] 138 |                 fn ln(&self) -> Self {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stderr] 139 |                     self.ln()
[INFO] [stderr]     |                     --------- recursive call site
[INFO] [stderr] ...
[INFO] [stderr] 256 | impl_functions_for_float!(f32, f64);
[INFO] [stderr]     | ------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]    --> src/lib.rs:142:17
[INFO] [stderr]     |
[INFO] [stderr] 142 |                 fn powf(&self, num: Self) -> Self {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stderr] 143 |                     self.powf(num)
[INFO] [stderr]     |                     -------------- recursive call site
[INFO] [stderr] ...
[INFO] [stderr] 256 | impl_functions_for_float!(f32, f64);
[INFO] [stderr]     | ------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]    --> src/lib.rs:162:17
[INFO] [stderr]     |
[INFO] [stderr] 162 |                 fn powi(&self, num: i32) -> Self {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stderr] 163 |                     self.powi(num)
[INFO] [stderr]     |                     -------------- recursive call site
[INFO] [stderr] ...
[INFO] [stderr] 256 | impl_functions_for_float!(f32, f64);
[INFO] [stderr]     | ------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: private trait `ops::InvReal` in public interface (error E0445)
[INFO] [stderr]    --> src/ops.rs:212:1
[INFO] [stderr]     |
[INFO] [stderr] 212 | / impl<T> Div for Complex<T>
[INFO] [stderr] 213 | | where
[INFO] [stderr] 214 | |     Complex<T>: Conjugate + Mul<Output = Complex<T>> + InvReal + Copy,
[INFO] [stderr] 215 | | {
[INFO] [stderr] ...   |
[INFO] [stderr] 220 | |     }
[INFO] [stderr] 221 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(private_in_public)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: 12 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Product`, `Sum`
[INFO] [stderr]  --> src/lib.rs:1:17
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::iter::{Product, Sum};
[INFO] [stderr]   |                 ^^^^^^^  ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `str::FromStr`
[INFO] [stderr]  --> src/fmt.rs:2:16
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::{fmt, str::FromStr};
[INFO] [stderr]   |                ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::num::ParseFloatError`
[INFO] [stderr]  --> src/fmt.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::num::ParseFloatError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/lib.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | / macro_rules! forward_ref_un_op {
[INFO] [stderr] 27 | |     ($imp:ident, $method:ident, $t:ty, $T:tt) => {
[INFO] [stderr] 28 | |         impl<$T> $imp for &$t
[INFO] [stderr] 29 | |         where
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |     };
[INFO] [stderr] 38 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/lib.rs:40:1
[INFO] [stderr]    |
[INFO] [stderr] 40 | / macro_rules! forward_ref_bin_op {
[INFO] [stderr] 41 | |     ($imp:ident, $method:ident, $t:ty, $u:ty, $T:tt) => {
[INFO] [stderr] 42 | |         impl<$T> $imp<&$u> for $t
[INFO] [stderr] 43 | |         where
[INFO] [stderr] ...  |
[INFO] [stderr] 74 | |     };
[INFO] [stderr] 75 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/lib.rs:77:1
[INFO] [stderr]    |
[INFO] [stderr] 77 | / macro_rules! bin_op_assign {
[INFO] [stderr] 78 | |     ($assign:ident, $method:ident, $base_trait:ident,
[INFO] [stderr] 79 | |      $base_method:ident, $t:ty, $u:ty, $T:tt) => {
[INFO] [stderr] 80 | |         impl<$T> $assign<$u> for $t
[INFO] [stderr] ...  |
[INFO] [stderr] 89 | |     };
[INFO] [stderr] 90 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]    --> src/lib.rs:134:17
[INFO] [stderr]     |
[INFO] [stderr] 134 |                 fn exp(&self) -> Self {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stderr] 135 |                     self.exp()
[INFO] [stderr]     |                     ---------- recursive call site
[INFO] [stderr] ...
[INFO] [stderr] 256 | impl_functions_for_float!(f32, f64);
[INFO] [stderr]     | ------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stderr]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]    --> src/lib.rs:134:17
[INFO] [stderr]     |
[INFO] [stderr] 134 |                 fn exp(&self) -> Self {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stderr] 135 |                     self.exp()
[INFO] [stderr]     |                     ---------- recursive call site
[INFO] [stderr] ...
[INFO] [stderr] 256 | impl_functions_for_float!(f32, f64);
[INFO] [stderr]     | ------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]    --> src/lib.rs:138:17
[INFO] [stderr]     |
[INFO] [stderr] 138 |                 fn ln(&self) -> Self {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stderr] 139 |                     self.ln()
[INFO] [stderr]     |                     --------- recursive call site
[INFO] [stderr] ...
[INFO] [stderr] 256 | impl_functions_for_float!(f32, f64);
[INFO] [stderr]     | ------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]    --> src/lib.rs:142:17
[INFO] [stderr]     |
[INFO] [stderr] 142 |                 fn powf(&self, num: Self) -> Self {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stderr] 143 |                     self.powf(num)
[INFO] [stderr]     |                     -------------- recursive call site
[INFO] [stderr] ...
[INFO] [stderr] 256 | impl_functions_for_float!(f32, f64);
[INFO] [stderr]     | ------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]    --> src/lib.rs:162:17
[INFO] [stderr]     |
[INFO] [stderr] 162 |                 fn powi(&self, num: i32) -> Self {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stderr] 163 |                     self.powi(num)
[INFO] [stderr]     |                     -------------- recursive call site
[INFO] [stderr] ...
[INFO] [stderr] 256 | impl_functions_for_float!(f32, f64);
[INFO] [stderr]     | ------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: private trait `ops::InvReal` in public interface (error E0445)
[INFO] [stderr]    --> src/ops.rs:212:1
[INFO] [stderr]     |
[INFO] [stderr] 212 | / impl<T> Div for Complex<T>
[INFO] [stderr] 213 | | where
[INFO] [stderr] 214 | |     Complex<T>: Conjugate + Mul<Output = Complex<T>> + InvReal + Copy,
[INFO] [stderr] 215 | | {
[INFO] [stderr] ...   |
[INFO] [stderr] 220 | |     }
[INFO] [stderr] 221 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(private_in_public)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: 12 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]  --> src/main.rs:6:15
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let z3 =  (z / z2);//.floor();
[INFO] [stderr]   |               ^^^^^^^^ help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]  --> src/main.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let v = vec![z; 3];
[INFO] [stderr]   |         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]  --> src/main.rs:6:15
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let z3 =  (z / z2);//.floor();
[INFO] [stderr]   |               ^^^^^^^^ help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]  --> src/main.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let v = vec![z; 3];
[INFO] [stderr]   |         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/complex-95b88f748fa726f7
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/complex-a4bf993da76ecfe2
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/arithmetic_tests-bef00223958d5834
[INFO] [stdout] running 62 tests
[INFO] [stdout] test test_add_complexf32_and_f32 ... ok
[INFO] [stdout] test test_add_complexf64_and_f64 ... ok
[INFO] [stdout] test test_add_octonionf64_and_f64 ... ok
[INFO] [stdout] test test_add_quaternionf32_and_f32 ... ok
[INFO] [stdout] test test_add_two_octonionsf64 ... ok
[INFO] [stdout] test test_add_two_quaternionsf64 ... ok
[INFO] [stdout] test test_commutator_two_octonionf32 ... ok
[INFO] [stdout] test test_commutator_two_octonionf64 ... ok
[INFO] [stdout] test test_associator_two_octonionf64 ... ok
[INFO] [stdout] test test_commutator_two_quaternionf64 ... ok
[INFO] [stdout] test test_commutator_two_quaternionf32 ... ok
[INFO] [stdout] test test_div_complexf32_and_f32 ... ok
[INFO] [stdout] test test_div_octonionf32_and_f32 ... ok
[INFO] [stdout] test test_div_octonionf64_and_f64 ... ok
[INFO] [stdout] test test_div_quaternionf32_and_f32 ... ok
[INFO] [stdout] test test_div_quaternionf64_and_f64 ... ok
[INFO] [stdout] test test_div_two_complexf32 ... ok
[INFO] [stdout] test test_div_two_complexf64 ... ok
[INFO] [stdout] test test_div_two_octonionf32 ... ok
[INFO] [stdout] test test_div_two_octonionf64 ... ok
[INFO] [stdout] test test_add_two_quaternionsf32 ... ok
[INFO] [stdout] test test_div_two_quaternionf32 ... ok
[INFO] [stdout] test test_div_two_quaternionf64 ... ok
[INFO] [stdout] test test_add_octonionf32_and_f32 ... ok
[INFO] [stdout] test test_add_two_complexf64 ... ok
[INFO] [stdout] test test_mul_complexf32_and_f32 ... ok
[INFO] [stdout] test test_mul_two_complexf32 ... ok
[INFO] [stdout] test test_mul_quaternionf32_and_f32 ... ok
[INFO] [stdout] test test_mul_octonionf64_and_f64 ... ok
[INFO] [stdout] test test_mul_two_quaternionf32 ... ok
[INFO] [stdout] test test_mul_two_quaternionf64 ... ok
[INFO] [stdout] test test_neg_complexf32 ... ok
[INFO] [stdout] test test_neg_complexf64 ... ok
[INFO] [stdout] test test_neg_octonionf32 ... ok
[INFO] [stdout] test test_neg_octonionf64 ... ok
[INFO] [stdout] test test_neg_quaternionf32 ... ok
[INFO] [stdout] test test_neg_quaternionf64 ... ok
[INFO] [stdout] test test_sub_complexf32_and_f32 ... ok
[INFO] [stdout] test test_sub_complexf64_and_f64 ... ok
[INFO] [stdout] test test_sub_octonionf32_and_f32 ... ok
[INFO] [stdout] test test_sub_octonionf64_and_f64 ... ok
[INFO] [stdout] test test_sub_quaternionf32_and_f32 ... ok
[INFO] [stdout] test test_sub_quaternionf64_and_f64 ... ok
[INFO] [stdout] test test_sub_two_complexf32 ... ok
[INFO] [stdout] test test_mul_complexf64_and_f64 ... ok
[INFO] [stdout] test test_mul_octonionf32_and_f32 ... ok
[INFO] [stdout] test test_sub_two_complexf64 ... ok
[INFO] [stdout] test test_associator_two_octonionf32 ... ok
[INFO] [stdout] test test_mul_quaternionf64_and_f64 ... ok
[INFO] [stdout] test test_mul_two_complexf64 ... ok
[INFO] [stdout] test test_sub_two_quaternionf32 ... ok
[INFO] [stdout] test test_sub_two_octonionf32 ... ok
[INFO] [stdout] test test_sub_two_quaternionf64 ... ok
[INFO] [stdout] test test_add_two_octonionsf32 ... ok
[INFO] [stdout] test test_div_complexf64_and_f64 ... ok
[INFO] [stdout] test test_add_two_complexf32 ... ok
[INFO] [stdout] test test_mul_two_octonionf64 ... ok
[INFO] [stdout] test test_sub_two_octonionf64 ... ok
[INFO] [stdout] test test_mul_two_octonionf32 ... ok
[INFO] [stdout] test test_add_quaternionf64_and_f64 ... ok
[INFO] [stdout] test test_exp_complexf32 ... ok
[INFO] [stdout] test test_exp_complexf64 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 62 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests complex
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "ab88f1ffe6dc0a20f8bf42d8dd1b4bdf44afcf94fd5d5b0c0ee0d38da51291a7"`
[INFO] running `"docker" "rm" "-f" "ab88f1ffe6dc0a20f8bf42d8dd1b4bdf44afcf94fd5d5b0c0ee0d38da51291a7"`
[INFO] [stdout] ab88f1ffe6dc0a20f8bf42d8dd1b4bdf44afcf94fd5d5b0c0ee0d38da51291a7