[INFO] fetching crate peripherals 0.1.1...
[INFO] checking peripherals-0.1.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate peripherals 0.1.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate peripherals 0.1.1
[INFO] finished tweaking crates.io crate peripherals 0.1.1
[INFO] tweaked toml for crates.io crate peripherals 0.1.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate peripherals 0.1.1 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6a09dfff7aaccee8d3e91a686852c25d4918204bccc6b8098d9ea6515a500b7a
[INFO] running `Command { std: "docker" "start" "-a" "6a09dfff7aaccee8d3e91a686852c25d4918204bccc6b8098d9ea6515a500b7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a09dfff7aaccee8d3e91a686852c25d4918204bccc6b8098d9ea6515a500b7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a09dfff7aaccee8d3e91a686852c25d4918204bccc6b8098d9ea6515a500b7a", kill_on_drop: false }`
[INFO] [stdout] 6a09dfff7aaccee8d3e91a686852c25d4918204bccc6b8098d9ea6515a500b7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e73e850d14bfc8fd023e345b7b25a7c6fae43b0c7fd79d31a3a88d5536e05ce6
[INFO] running `Command { std: "docker" "start" "-a" "e73e850d14bfc8fd023e345b7b25a7c6fae43b0c7fd79d31a3a88d5536e05ce6", kill_on_drop: false }`
[INFO] [stderr]     Checking peripherals v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<Struct, Infallible>
[INFO] [stdout]    --> src/macros/field_type.rs:167:13
[INFO] [stdout]     |
[INFO] [stdout] 167 |               ::core::convert::TryInto::try_into(value).map($name).map_err(|_| $crate::InvalidValue);
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/attributes/field_type.rs:33:1
[INFO] [stdout]     |
[INFO] [stdout]  33 | / crate::field_type! {
[INFO] [stdout]  34 | |     #[doc = "Nothing: only on struct"]
[INFO] [stdout]  35 | |     struct Struct [u8] (u8);
[INFO] [stdout]  36 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]     = note: this error originates in the macro `crate::field_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u8, Infallible>
[INFO] [stdout]    --> src/macros/field_type.rs:167:13
[INFO] [stdout]     |
[INFO] [stdout] 167 |               ::core::convert::TryInto::try_into(value).map($name).map_err(|_| $crate::InvalidValue);
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/attributes/field_type.rs:33:1
[INFO] [stdout]     |
[INFO] [stdout]  33 | / crate::field_type! {
[INFO] [stdout]  34 | |     #[doc = "Nothing: only on struct"]
[INFO] [stdout]  35 | |     struct Struct [u8] (u8);
[INFO] [stdout]  36 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::field_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<StructType, Infallible>
[INFO] [stdout]    --> src/macros/field_type.rs:167:13
[INFO] [stdout]     |
[INFO] [stdout] 167 |               ::core::convert::TryInto::try_into(value).map($name).map_err(|_| $crate::InvalidValue);
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/attributes/field_type.rs:38:1
[INFO] [stdout]     |
[INFO] [stdout]  38 | / crate::field_type! {
[INFO] [stdout]  39 | |     #[type: doc = "`type`: only on struct"]
[INFO] [stdout]  40 | |     struct StructType [u8] (u8);
[INFO] [stdout]  41 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::field_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u8, Infallible>
[INFO] [stdout]    --> src/macros/field_type.rs:167:13
[INFO] [stdout]     |
[INFO] [stdout] 167 |               ::core::convert::TryInto::try_into(value).map($name).map_err(|_| $crate::InvalidValue);
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/attributes/field_type.rs:38:1
[INFO] [stdout]     |
[INFO] [stdout]  38 | / crate::field_type! {
[INFO] [stdout]  39 | |     #[type: doc = "`type`: only on struct"]
[INFO] [stdout]  40 | |     struct StructType [u8] (u8);
[INFO] [stdout]  41 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::field_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<StructField, Infallible>
[INFO] [stdout]    --> src/macros/field_type.rs:167:13
[INFO] [stdout]     |
[INFO] [stdout] 167 |               ::core::convert::TryInto::try_into(value).map($name).map_err(|_| $crate::InvalidValue);
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/attributes/field_type.rs:43:1
[INFO] [stdout]     |
[INFO] [stdout]  43 | / crate::field_type! {
[INFO] [stdout]  44 | |     #[field: doc = "`field`: on nothing"]
[INFO] [stdout]  45 | |     struct StructField [u8] (u8);
[INFO] [stdout]  46 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::field_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u8, Infallible>
[INFO] [stdout]    --> src/macros/field_type.rs:167:13
[INFO] [stdout]     |
[INFO] [stdout] 167 |               ::core::convert::TryInto::try_into(value).map($name).map_err(|_| $crate::InvalidValue);
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/attributes/field_type.rs:43:1
[INFO] [stdout]     |
[INFO] [stdout]  43 | / crate::field_type! {
[INFO] [stdout]  44 | |     #[field: doc = "`field`: on nothing"]
[INFO] [stdout]  45 | |     struct StructField [u8] (u8);
[INFO] [stdout]  46 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::field_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<StructImpl, Infallible>
[INFO] [stdout]    --> src/macros/field_type.rs:167:13
[INFO] [stdout]     |
[INFO] [stdout] 167 |               ::core::convert::TryInto::try_into(value).map($name).map_err(|_| $crate::InvalidValue);
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/attributes/field_type.rs:48:1
[INFO] [stdout]     |
[INFO] [stdout]  48 | / crate::field_type! {
[INFO] [stdout]  49 | |     #[impl: doc = "`impl`: only on impls (obvoiusly not derived ones)"]
[INFO] [stdout]  50 | |     struct StructImpl [u8] (u8);
[INFO] [stdout]  51 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::field_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u8, Infallible>
[INFO] [stdout]    --> src/macros/field_type.rs:167:13
[INFO] [stdout]     |
[INFO] [stdout] 167 |               ::core::convert::TryInto::try_into(value).map($name).map_err(|_| $crate::InvalidValue);
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/attributes/field_type.rs:48:1
[INFO] [stdout]     |
[INFO] [stdout]  48 | / crate::field_type! {
[INFO] [stdout]  49 | |     #[impl: doc = "`impl`: only on impls (obvoiusly not derived ones)"]
[INFO] [stdout]  50 | |     struct StructImpl [u8] (u8);
[INFO] [stdout]  51 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::field_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<StructAll, Infallible>
[INFO] [stdout]    --> src/macros/field_type.rs:167:13
[INFO] [stdout]     |
[INFO] [stdout] 167 |               ::core::convert::TryInto::try_into(value).map($name).map_err(|_| $crate::InvalidValue);
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/attributes/field_type.rs:53:1
[INFO] [stdout]     |
[INFO] [stdout]  53 | / crate::field_type! {
[INFO] [stdout]  54 | |     #[all: doc = "`all`: on struct and impls (obvoiusly not derived ones)"]
[INFO] [stdout]  55 | |     struct StructAll [u8] (u8);
[INFO] [stdout]  56 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::field_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u8, Infallible>
[INFO] [stdout]    --> src/macros/field_type.rs:167:13
[INFO] [stdout]     |
[INFO] [stdout] 167 |               ::core::convert::TryInto::try_into(value).map($name).map_err(|_| $crate::InvalidValue);
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/attributes/field_type.rs:53:1
[INFO] [stdout]     |
[INFO] [stdout]  53 | / crate::field_type! {
[INFO] [stdout]  54 | |     #[all: doc = "`all`: on struct and impls (obvoiusly not derived ones)"]
[INFO] [stdout]  55 | |     struct StructAll [u8] (u8);
[INFO] [stdout]  56 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::field_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Extern, Infallible>
[INFO] [stdout]    --> src/macros/field_type.rs:167:13
[INFO] [stdout]     |
[INFO] [stdout] 167 |               ::core::convert::TryInto::try_into(value).map($name).map_err(|_| $crate::InvalidValue);
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/attributes/register.rs:65:1
[INFO] [stdout]     |
[INFO] [stdout]  65 | / crate::field_type! {
[INFO] [stdout]  66 | |     /// A type defined with `field_type!`
[INFO] [stdout]  67 | |     struct Extern [u8] (u8);
[INFO] [stdout]  68 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::field_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u8, Infallible>
[INFO] [stdout]    --> src/macros/field_type.rs:167:13
[INFO] [stdout]     |
[INFO] [stdout] 167 |               ::core::convert::TryInto::try_into(value).map($name).map_err(|_| $crate::InvalidValue);
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/attributes/register.rs:65:1
[INFO] [stdout]     |
[INFO] [stdout]  65 | / crate::field_type! {
[INFO] [stdout]  66 | |     /// A type defined with `field_type!`
[INFO] [stdout]  67 | |     struct Extern [u8] (u8);
[INFO] [stdout]  68 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::field_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<ExternType, Infallible>
[INFO] [stdout]    --> src/macros/field_type.rs:167:13
[INFO] [stdout]     |
[INFO] [stdout] 167 |               ::core::convert::TryInto::try_into(value).map($name).map_err(|_| $crate::InvalidValue);
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/attributes/register.rs:70:1
[INFO] [stdout]     |
[INFO] [stdout]  70 | / crate::field_type! {
[INFO] [stdout]  71 | |     /// A type defined with `field_type!`
[INFO] [stdout]  72 | |     struct ExternType [u8] (u8);
[INFO] [stdout]  73 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::field_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u8, Infallible>
[INFO] [stdout]    --> src/macros/field_type.rs:167:13
[INFO] [stdout]     |
[INFO] [stdout] 167 |               ::core::convert::TryInto::try_into(value).map($name).map_err(|_| $crate::InvalidValue);
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/attributes/register.rs:70:1
[INFO] [stdout]     |
[INFO] [stdout]  70 | / crate::field_type! {
[INFO] [stdout]  71 | |     /// A type defined with `field_type!`
[INFO] [stdout]  72 | |     struct ExternType [u8] (u8);
[INFO] [stdout]  73 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::field_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<ExternField, Infallible>
[INFO] [stdout]    --> src/macros/field_type.rs:167:13
[INFO] [stdout]     |
[INFO] [stdout] 167 |               ::core::convert::TryInto::try_into(value).map($name).map_err(|_| $crate::InvalidValue);
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/attributes/register.rs:75:1
[INFO] [stdout]     |
[INFO] [stdout]  75 | / crate::field_type! {
[INFO] [stdout]  76 | |     /// A type defined with `field_type!`
[INFO] [stdout]  77 | |     struct ExternField [u8] (u8);
[INFO] [stdout]  78 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::field_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u8, Infallible>
[INFO] [stdout]    --> src/macros/field_type.rs:167:13
[INFO] [stdout]     |
[INFO] [stdout] 167 |               ::core::convert::TryInto::try_into(value).map($name).map_err(|_| $crate::InvalidValue);
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/attributes/register.rs:75:1
[INFO] [stdout]     |
[INFO] [stdout]  75 | / crate::field_type! {
[INFO] [stdout]  76 | |     /// A type defined with `field_type!`
[INFO] [stdout]  77 | |     struct ExternField [u8] (u8);
[INFO] [stdout]  78 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::field_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<ExternImpl, Infallible>
[INFO] [stdout]    --> src/macros/field_type.rs:167:13
[INFO] [stdout]     |
[INFO] [stdout] 167 |               ::core::convert::TryInto::try_into(value).map($name).map_err(|_| $crate::InvalidValue);
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/attributes/register.rs:80:1
[INFO] [stdout]     |
[INFO] [stdout]  80 | / crate::field_type! {
[INFO] [stdout]  81 | |     /// A type defined with `field_type!`
[INFO] [stdout]  82 | |     struct ExternImpl [u8] (u8);
[INFO] [stdout]  83 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::field_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u8, Infallible>
[INFO] [stdout]    --> src/macros/field_type.rs:167:13
[INFO] [stdout]     |
[INFO] [stdout] 167 |               ::core::convert::TryInto::try_into(value).map($name).map_err(|_| $crate::InvalidValue);
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/attributes/register.rs:80:1
[INFO] [stdout]     |
[INFO] [stdout]  80 | / crate::field_type! {
[INFO] [stdout]  81 | |     /// A type defined with `field_type!`
[INFO] [stdout]  82 | |     struct ExternImpl [u8] (u8);
[INFO] [stdout]  83 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::field_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<ExternAll, Infallible>
[INFO] [stdout]    --> src/macros/field_type.rs:167:13
[INFO] [stdout]     |
[INFO] [stdout] 167 |               ::core::convert::TryInto::try_into(value).map($name).map_err(|_| $crate::InvalidValue);
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/attributes/register.rs:85:1
[INFO] [stdout]     |
[INFO] [stdout]  85 | / crate::field_type! {
[INFO] [stdout]  86 | |     /// A type defined with `field_type!`
[INFO] [stdout]  87 | |     struct ExternAll [u8] (u8);
[INFO] [stdout]  88 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::field_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u8, Infallible>
[INFO] [stdout]    --> src/macros/field_type.rs:167:13
[INFO] [stdout]     |
[INFO] [stdout] 167 |               ::core::convert::TryInto::try_into(value).map($name).map_err(|_| $crate::InvalidValue);
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/attributes/register.rs:85:1
[INFO] [stdout]     |
[INFO] [stdout]  85 | / crate::field_type! {
[INFO] [stdout]  86 | |     /// A type defined with `field_type!`
[INFO] [stdout]  87 | |     struct ExternAll [u8] (u8);
[INFO] [stdout]  88 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::field_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<example::field_type::Data, Infallible>
[INFO] [stdout]    --> src/macros/field_type.rs:167:13
[INFO] [stdout]     |
[INFO] [stdout] 167 |               ::core::convert::TryInto::try_into(value).map($name).map_err(|_| $crate::InvalidValue);
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/example/field_type.rs:15:1
[INFO] [stdout]     |
[INFO] [stdout]  15 | / crate::field_type! {
[INFO] [stdout]  16 | |     /// A newtype struct
[INFO] [stdout]  17 | |     struct Data [u8, u16] (u8);
[INFO] [stdout]  18 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::field_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u8, Infallible>
[INFO] [stdout]    --> src/macros/field_type.rs:167:13
[INFO] [stdout]     |
[INFO] [stdout] 167 |               ::core::convert::TryInto::try_into(value).map($name).map_err(|_| $crate::InvalidValue);
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/example/field_type.rs:15:1
[INFO] [stdout]     |
[INFO] [stdout]  15 | / crate::field_type! {
[INFO] [stdout]  16 | |     /// A newtype struct
[INFO] [stdout]  17 | |     struct Data [u8, u16] (u8);
[INFO] [stdout]  18 | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `crate::field_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `peripherals` (lib test) due to 22 previous errors
[INFO] running `Command { std: "docker" "inspect" "e73e850d14bfc8fd023e345b7b25a7c6fae43b0c7fd79d31a3a88d5536e05ce6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e73e850d14bfc8fd023e345b7b25a7c6fae43b0c7fd79d31a3a88d5536e05ce6", kill_on_drop: false }`
[INFO] [stdout] e73e850d14bfc8fd023e345b7b25a7c6fae43b0c7fd79d31a3a88d5536e05ce6