[INFO] fetching crate muta-protocol 0.1.0-alpha.1...
[INFO] checking muta-protocol-0.1.0-alpha.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate muta-protocol 0.1.0-alpha.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate muta-protocol 0.1.0-alpha.1 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate muta-protocol 0.1.0-alpha.1
[INFO] finished tweaking crates.io crate muta-protocol 0.1.0-alpha.1
[INFO] tweaked toml for crates.io crate muta-protocol 0.1.0-alpha.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] warning: the item `field` is imported redundantly
[INFO] [stdout]   --> src/codec/epoch.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |       field, impl_default_bytes_codec_for,
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/codec/macro.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout] 2  | / macro_rules! field {
[INFO] [stdout] 3  | |     ($opt_field:expr, $type:expr, $field:expr) => {
[INFO] [stdout] 4  | |         $opt_field.ok_or_else(|| crate::codec::CodecError::MissingField {
[INFO] [stdout] 5  | |             r#type: $type,
[INFO] [stdout] ...  |
[INFO] [stdout] 8  | |     };
[INFO] [stdout] 9  | | }
[INFO] [stdout]    | |_- the item `field` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `impl_default_bytes_codec_for` is imported redundantly
[INFO] [stdout]   --> src/codec/epoch.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |       field, impl_default_bytes_codec_for,
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/codec/macro.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | / macro_rules! impl_default_bytes_codec_for {
[INFO] [stdout] 13 | |     ($category:ident, [$($type:ident),+]) => (
[INFO] [stdout] 14 | |         use crate::types::$category;
[INFO] [stdout] ...  |
[INFO] [stdout] 34 | |     )
[INFO] [stdout] 35 | | }
[INFO] [stdout]    | |_- the item `impl_default_bytes_codec_for` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Default` is imported redundantly
[INFO] [stdout]  --> src/codec/primitive.rs:1:29
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{convert::TryFrom, default::Default, mem};
[INFO] [stdout]   |                             ^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Default` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `field` is imported redundantly
[INFO] [stdout]   --> src/codec/primitive.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |       field, impl_default_bytes_codec_for,
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/codec/macro.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout] 2  | / macro_rules! field {
[INFO] [stdout] 3  | |     ($opt_field:expr, $type:expr, $field:expr) => {
[INFO] [stdout] 4  | |         $opt_field.ok_or_else(|| crate::codec::CodecError::MissingField {
[INFO] [stdout] 5  | |             r#type: $type,
[INFO] [stdout] ...  |
[INFO] [stdout] 8  | |     };
[INFO] [stdout] 9  | | }
[INFO] [stdout]    | |_- the item `field` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `impl_default_bytes_codec_for` is imported redundantly
[INFO] [stdout]   --> src/codec/primitive.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |       field, impl_default_bytes_codec_for,
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/codec/macro.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | / macro_rules! impl_default_bytes_codec_for {
[INFO] [stdout] 13 | |     ($category:ident, [$($type:ident),+]) => (
[INFO] [stdout] 14 | |         use crate::types::$category;
[INFO] [stdout] ...  |
[INFO] [stdout] 34 | |     )
[INFO] [stdout] 35 | | }
[INFO] [stdout]    | |_- the item `impl_default_bytes_codec_for` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `field` is imported redundantly
[INFO] [stdout]  --> src/codec/receipt.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |       field, impl_default_bytes_codec_for,
[INFO] [stdout]   |       ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/codec/macro.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | / macro_rules! field {
[INFO] [stdout] 3 | |     ($opt_field:expr, $type:expr, $field:expr) => {
[INFO] [stdout] 4 | |         $opt_field.ok_or_else(|| crate::codec::CodecError::MissingField {
[INFO] [stdout] 5 | |             r#type: $type,
[INFO] [stdout] ... |
[INFO] [stdout] 8 | |     };
[INFO] [stdout] 9 | | }
[INFO] [stdout]   | |_- the item `field` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `impl_default_bytes_codec_for` is imported redundantly
[INFO] [stdout]   --> src/codec/receipt.rs:8:12
[INFO] [stdout]    |
[INFO] [stdout] 8  |       field, impl_default_bytes_codec_for,
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/codec/macro.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | / macro_rules! impl_default_bytes_codec_for {
[INFO] [stdout] 13 | |     ($category:ident, [$($type:ident),+]) => (
[INFO] [stdout] 14 | |         use crate::types::$category;
[INFO] [stdout] ...  |
[INFO] [stdout] 34 | |     )
[INFO] [stdout] 35 | | }
[INFO] [stdout]    | |_- the item `impl_default_bytes_codec_for` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `field` is imported redundantly
[INFO] [stdout]  --> src/codec/transaction.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |       field, impl_default_bytes_codec_for,
[INFO] [stdout]   |       ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/codec/macro.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | / macro_rules! field {
[INFO] [stdout] 3 | |     ($opt_field:expr, $type:expr, $field:expr) => {
[INFO] [stdout] 4 | |         $opt_field.ok_or_else(|| crate::codec::CodecError::MissingField {
[INFO] [stdout] 5 | |             r#type: $type,
[INFO] [stdout] ... |
[INFO] [stdout] 8 | |     };
[INFO] [stdout] 9 | | }
[INFO] [stdout]   | |_- the item `field` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `impl_default_bytes_codec_for` is imported redundantly
[INFO] [stdout]   --> src/codec/transaction.rs:8:12
[INFO] [stdout]    |
[INFO] [stdout] 8  |       field, impl_default_bytes_codec_for,
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/codec/macro.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | / macro_rules! impl_default_bytes_codec_for {
[INFO] [stdout] 13 | |     ($category:ident, [$($type:ident),+]) => (
[INFO] [stdout] 14 | |         use crate::types::$category;
[INFO] [stdout] ...  |
[INFO] [stdout] 34 | |     )
[INFO] [stdout] 35 | | }
[INFO] [stdout]    | |_- the item `impl_default_bytes_codec_for` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `impl_default_fixed_codec_for` is imported redundantly
[INFO] [stdout]   --> src/fixed_codec/epoch.rs:7:13
[INFO] [stdout]    |
[INFO] [stdout] 7  |   use crate::{impl_default_fixed_codec_for, ProtocolResult};
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/fixed_codec/macro.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout] 2  | / macro_rules! impl_default_fixed_codec_for {
[INFO] [stdout] 3  | |     ($category:ident, [$($type:ident),+]) => (
[INFO] [stdout] 4  | |         use crate::types::$category;
[INFO] [stdout] ...  |
[INFO] [stdout] 17 | |     )
[INFO] [stdout] 18 | | }
[INFO] [stdout]    | |_- the item `impl_default_fixed_codec_for` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `impl_default_fixed_codec_for` is imported redundantly
[INFO] [stdout]   --> src/fixed_codec/primitive.rs:8:13
[INFO] [stdout]    |
[INFO] [stdout] 8  |   use crate::{impl_default_fixed_codec_for, ProtocolResult};
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/fixed_codec/macro.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout] 2  | / macro_rules! impl_default_fixed_codec_for {
[INFO] [stdout] 3  | |     ($category:ident, [$($type:ident),+]) => (
[INFO] [stdout] 4  | |         use crate::types::$category;
[INFO] [stdout] ...  |
[INFO] [stdout] 17 | |     )
[INFO] [stdout] 18 | | }
[INFO] [stdout]    | |_- the item `impl_default_fixed_codec_for` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `field` is imported redundantly
[INFO] [stdout]   --> src/codec/epoch.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |       field, impl_default_bytes_codec_for,
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/codec/macro.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout] 2  | / macro_rules! field {
[INFO] [stdout] 3  | |     ($opt_field:expr, $type:expr, $field:expr) => {
[INFO] [stdout] 4  | |         $opt_field.ok_or_else(|| crate::codec::CodecError::MissingField {
[INFO] [stdout] 5  | |             r#type: $type,
[INFO] [stdout] ...  |
[INFO] [stdout] 8  | |     };
[INFO] [stdout] 9  | | }
[INFO] [stdout]    | |_- the item `field` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `impl_default_fixed_codec_for` is imported redundantly
[INFO] [stdout]   --> src/fixed_codec/receipt.rs:3:13
[INFO] [stdout]    |
[INFO] [stdout] 3  |   use crate::{impl_default_fixed_codec_for, ProtocolResult};
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/fixed_codec/macro.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout] 2  | / macro_rules! impl_default_fixed_codec_for {
[INFO] [stdout] 3  | |     ($category:ident, [$($type:ident),+]) => (
[INFO] [stdout] 4  | |         use crate::types::$category;
[INFO] [stdout] ...  |
[INFO] [stdout] 17 | |     )
[INFO] [stdout] 18 | | }
[INFO] [stdout]    | |_- the item `impl_default_fixed_codec_for` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `impl_default_bytes_codec_for` is imported redundantly
[INFO] [stdout]   --> src/codec/epoch.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |       field, impl_default_bytes_codec_for,
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/codec/macro.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | / macro_rules! impl_default_bytes_codec_for {
[INFO] [stdout] 13 | |     ($category:ident, [$($type:ident),+]) => (
[INFO] [stdout] 14 | |         use crate::types::$category;
[INFO] [stdout] ...  |
[INFO] [stdout] 34 | |     )
[INFO] [stdout] 35 | | }
[INFO] [stdout]    | |_- the item `impl_default_bytes_codec_for` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Default` is imported redundantly
[INFO] [stdout]  --> src/codec/primitive.rs:1:29
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{convert::TryFrom, default::Default, mem};
[INFO] [stdout]   |                             ^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Default` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `impl_default_fixed_codec_for` is imported redundantly
[INFO] [stdout]   --> src/fixed_codec/transaction.rs:6:13
[INFO] [stdout]    |
[INFO] [stdout] 6  |   use crate::{impl_default_fixed_codec_for, ProtocolResult};
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/fixed_codec/macro.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout] 2  | / macro_rules! impl_default_fixed_codec_for {
[INFO] [stdout] 3  | |     ($category:ident, [$($type:ident),+]) => (
[INFO] [stdout] 4  | |         use crate::types::$category;
[INFO] [stdout] ...  |
[INFO] [stdout] 17 | |     )
[INFO] [stdout] 18 | | }
[INFO] [stdout]    | |_- the item `impl_default_fixed_codec_for` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]  --> src/traits/binding.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::iter::Iterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Iterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `field` is imported redundantly
[INFO] [stdout]   --> src/codec/primitive.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |       field, impl_default_bytes_codec_for,
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/codec/macro.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout] 2  | / macro_rules! field {
[INFO] [stdout] 3  | |     ($opt_field:expr, $type:expr, $field:expr) => {
[INFO] [stdout] 4  | |         $opt_field.ok_or_else(|| crate::codec::CodecError::MissingField {
[INFO] [stdout] 5  | |             r#type: $type,
[INFO] [stdout] ...  |
[INFO] [stdout] 8  | |     };
[INFO] [stdout] 9  | | }
[INFO] [stdout]    | |_- the item `field` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `impl_default_bytes_codec_for` is imported redundantly
[INFO] [stdout]   --> src/codec/primitive.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |       field, impl_default_bytes_codec_for,
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/codec/macro.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | / macro_rules! impl_default_bytes_codec_for {
[INFO] [stdout] 13 | |     ($category:ident, [$($type:ident),+]) => (
[INFO] [stdout] 14 | |         use crate::types::$category;
[INFO] [stdout] ...  |
[INFO] [stdout] 34 | |     )
[INFO] [stdout] 35 | | }
[INFO] [stdout]    | |_- the item `impl_default_bytes_codec_for` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `field` is imported redundantly
[INFO] [stdout]  --> src/codec/receipt.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |       field, impl_default_bytes_codec_for,
[INFO] [stdout]   |       ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/codec/macro.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | / macro_rules! field {
[INFO] [stdout] 3 | |     ($opt_field:expr, $type:expr, $field:expr) => {
[INFO] [stdout] 4 | |         $opt_field.ok_or_else(|| crate::codec::CodecError::MissingField {
[INFO] [stdout] 5 | |             r#type: $type,
[INFO] [stdout] ... |
[INFO] [stdout] 8 | |     };
[INFO] [stdout] 9 | | }
[INFO] [stdout]   | |_- the item `field` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `impl_default_bytes_codec_for` is imported redundantly
[INFO] [stdout]   --> src/codec/receipt.rs:8:12
[INFO] [stdout]    |
[INFO] [stdout] 8  |       field, impl_default_bytes_codec_for,
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/codec/macro.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | / macro_rules! impl_default_bytes_codec_for {
[INFO] [stdout] 13 | |     ($category:ident, [$($type:ident),+]) => (
[INFO] [stdout] 14 | |         use crate::types::$category;
[INFO] [stdout] ...  |
[INFO] [stdout] 34 | |     )
[INFO] [stdout] 35 | | }
[INFO] [stdout]    | |_- the item `impl_default_bytes_codec_for` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `field` is imported redundantly
[INFO] [stdout]  --> src/codec/transaction.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |       field, impl_default_bytes_codec_for,
[INFO] [stdout]   |       ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/codec/macro.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | / macro_rules! field {
[INFO] [stdout] 3 | |     ($opt_field:expr, $type:expr, $field:expr) => {
[INFO] [stdout] 4 | |         $opt_field.ok_or_else(|| crate::codec::CodecError::MissingField {
[INFO] [stdout] 5 | |             r#type: $type,
[INFO] [stdout] ... |
[INFO] [stdout] 8 | |     };
[INFO] [stdout] 9 | | }
[INFO] [stdout]   | |_- the item `field` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `impl_default_bytes_codec_for` is imported redundantly
[INFO] [stdout]   --> src/codec/transaction.rs:8:12
[INFO] [stdout]    |
[INFO] [stdout] 8  |       field, impl_default_bytes_codec_for,
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/codec/macro.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | / macro_rules! impl_default_bytes_codec_for {
[INFO] [stdout] 13 | |     ($category:ident, [$($type:ident),+]) => (
[INFO] [stdout] 14 | |         use crate::types::$category;
[INFO] [stdout] ...  |
[INFO] [stdout] 34 | |     )
[INFO] [stdout] 35 | | }
[INFO] [stdout]    | |_- the item `impl_default_bytes_codec_for` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `impl_default_fixed_codec_for` is imported redundantly
[INFO] [stdout]   --> src/fixed_codec/epoch.rs:7:13
[INFO] [stdout]    |
[INFO] [stdout] 7  |   use crate::{impl_default_fixed_codec_for, ProtocolResult};
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/fixed_codec/macro.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout] 2  | / macro_rules! impl_default_fixed_codec_for {
[INFO] [stdout] 3  | |     ($category:ident, [$($type:ident),+]) => (
[INFO] [stdout] 4  | |         use crate::types::$category;
[INFO] [stdout] ...  |
[INFO] [stdout] 17 | |     )
[INFO] [stdout] 18 | | }
[INFO] [stdout]    | |_- the item `impl_default_fixed_codec_for` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `impl_default_fixed_codec_for` is imported redundantly
[INFO] [stdout]   --> src/fixed_codec/primitive.rs:8:13
[INFO] [stdout]    |
[INFO] [stdout] 8  |   use crate::{impl_default_fixed_codec_for, ProtocolResult};
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/fixed_codec/macro.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout] 2  | / macro_rules! impl_default_fixed_codec_for {
[INFO] [stdout] 3  | |     ($category:ident, [$($type:ident),+]) => (
[INFO] [stdout] 4  | |         use crate::types::$category;
[INFO] [stdout] ...  |
[INFO] [stdout] 17 | |     )
[INFO] [stdout] 18 | | }
[INFO] [stdout]    | |_- the item `impl_default_fixed_codec_for` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `impl_default_fixed_codec_for` is imported redundantly
[INFO] [stdout]   --> src/fixed_codec/receipt.rs:3:13
[INFO] [stdout]    |
[INFO] [stdout] 3  |   use crate::{impl_default_fixed_codec_for, ProtocolResult};
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/fixed_codec/macro.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout] 2  | / macro_rules! impl_default_fixed_codec_for {
[INFO] [stdout] 3  | |     ($category:ident, [$($type:ident),+]) => (
[INFO] [stdout] 4  | |         use crate::types::$category;
[INFO] [stdout] ...  |
[INFO] [stdout] 17 | |     )
[INFO] [stdout] 18 | | }
[INFO] [stdout]    | |_- the item `impl_default_fixed_codec_for` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `impl_default_fixed_codec_for` is imported redundantly
[INFO] [stdout]   --> src/fixed_codec/transaction.rs:6:13
[INFO] [stdout]    |
[INFO] [stdout] 6  |   use crate::{impl_default_fixed_codec_for, ProtocolResult};
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/fixed_codec/macro.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout] 2  | / macro_rules! impl_default_fixed_codec_for {
[INFO] [stdout] 3  | |     ($category:ident, [$($type:ident),+]) => (
[INFO] [stdout] 4  | |         use crate::types::$category;
[INFO] [stdout] ...  |
[INFO] [stdout] 17 | |     )
[INFO] [stdout] 18 | | }
[INFO] [stdout]    | |_- the item `impl_default_fixed_codec_for` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Iterator` is imported redundantly
[INFO] [stdout]  --> src/traits/binding.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::iter::Iterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Iterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.81s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: uint v0.4.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "785f305ed281271bbc283a9824c863236e13cb06b40f697bfef5719d62ea5331", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "785f305ed281271bbc283a9824c863236e13cb06b40f697bfef5719d62ea5331", kill_on_drop: false }`
[INFO] [stdout] 785f305ed281271bbc283a9824c863236e13cb06b40f697bfef5719d62ea5331