[INFO] fetching crate gaffe-xilinx 0.1.0...
[INFO] checking gaffe-xilinx-0.1.0 against beta-2021-10-15 for beta-1.56-3
[INFO] extracting crate gaffe-xilinx 0.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate gaffe-xilinx 0.1.0 on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gaffe-xilinx 0.1.0
[INFO] finished tweaking crates.io crate gaffe-xilinx 0.1.0
[INFO] tweaked toml for crates.io crate gaffe-xilinx 0.1.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded packed_struct_codegen v0.2.4
[INFO] [stderr]   Downloaded packed_struct v0.2.3
[INFO] [stderr]   Downloaded strum v0.9.0
[INFO] [stderr]   Downloaded strum_macros v0.9.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 480d0b37d5bd15e9e6c787348464213edc8f5f7b70b00191f7b3367a2cdf93dc
[INFO] running `Command { std: "docker" "start" "-a" "480d0b37d5bd15e9e6c787348464213edc8f5f7b70b00191f7b3367a2cdf93dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "480d0b37d5bd15e9e6c787348464213edc8f5f7b70b00191f7b3367a2cdf93dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "480d0b37d5bd15e9e6c787348464213edc8f5f7b70b00191f7b3367a2cdf93dc", kill_on_drop: false }`
[INFO] [stdout] 480d0b37d5bd15e9e6c787348464213edc8f5f7b70b00191f7b3367a2cdf93dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 240f7e43d4eff096aa3e8c192aa9957925ee10f3095bd5c1cba725a38aa660f2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "240f7e43d4eff096aa3e8c192aa9957925ee10f3095bd5c1cba725a38aa660f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling packed_struct v0.2.3
[INFO] [stderr]     Checking strum v0.9.0
[INFO] [stderr]    Compiling smart-default v0.2.0
[INFO] [stderr]     Checking serde_yaml v0.7.5
[INFO] [stderr]     Checking backtrace v0.3.61
[INFO] [stderr]    Compiling strum_macros v0.9.1
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]    Compiling packed_struct_codegen v0.2.4
[INFO] [stderr]     Checking gaffe-xilinx v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/from_bytes.rs:18:32
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn from_bytes(reader: &mut BufRead) -> Result<Self, Error>;
[INFO] [stdout]    |                                ^^^^^^^ help: use `dyn`: `dyn BufRead`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/from_bytes.rs:25:32
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn from_bytes(reader: &mut BufRead) -> Result<Self, Error> {
[INFO] [stdout]    |                                ^^^^^^^ help: use `dyn`: `dyn BufRead`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/from_bytes.rs:40:37
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn to_bytes(&self, writer: &mut Write) -> Result<(), Error>;
[INFO] [stdout]    |                                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/from_bytes.rs:47:37
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn to_bytes(&self, writer: &mut Write) -> Result<(), Error>
[INFO] [stdout]    |                                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/xc7/bitstream.rs:228:31
[INFO] [stdout]     |
[INFO] [stdout] 228 |     fn from_bytes(bytes: &mut BufRead) -> Result<Self, Error> {
[INFO] [stdout]     |                               ^^^^^^^ help: use `dyn`: `dyn BufRead`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/xc7/bitstream.rs:266:37
[INFO] [stdout]     |
[INFO] [stdout] 266 |     fn to_bytes(&self, writer: &mut Write) -> Result<(), Error> {
[INFO] [stdout]     |                                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/xc7/bitstream.rs:342:35
[INFO] [stdout]     |
[INFO] [stdout] 342 |     fn from_bytes(mut bytes: &mut BufRead) -> Result<Self, Error> {
[INFO] [stdout]     |                                   ^^^^^^^ help: use `dyn`: `dyn BufRead`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/xc7/bitstream.rs:361:37
[INFO] [stdout]     |
[INFO] [stdout] 361 |     fn to_bytes(&self, writer: &mut Write) -> Result<(), Error> {
[INFO] [stdout]     |                                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/from_bytes.rs:18:32
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn from_bytes(reader: &mut BufRead) -> Result<Self, Error>;
[INFO] [stdout]    |                                ^^^^^^^ help: use `dyn`: `dyn BufRead`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/from_bytes.rs:25:32
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn from_bytes(reader: &mut BufRead) -> Result<Self, Error> {
[INFO] [stdout]    |                                ^^^^^^^ help: use `dyn`: `dyn BufRead`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/from_bytes.rs:40:37
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn to_bytes(&self, writer: &mut Write) -> Result<(), Error>;
[INFO] [stdout]    |                                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/from_bytes.rs:47:37
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn to_bytes(&self, writer: &mut Write) -> Result<(), Error>
[INFO] [stdout]    |                                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/xc7/bitstream.rs:228:31
[INFO] [stdout]     |
[INFO] [stdout] 228 |     fn from_bytes(bytes: &mut BufRead) -> Result<Self, Error> {
[INFO] [stdout]     |                               ^^^^^^^ help: use `dyn`: `dyn BufRead`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/xc7/bitstream.rs:266:37
[INFO] [stdout]     |
[INFO] [stdout] 266 |     fn to_bytes(&self, writer: &mut Write) -> Result<(), Error> {
[INFO] [stdout]     |                                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/xc7/bitstream.rs:342:35
[INFO] [stdout]     |
[INFO] [stdout] 342 |     fn from_bytes(mut bytes: &mut BufRead) -> Result<Self, Error> {
[INFO] [stdout]     |                                   ^^^^^^^ help: use `dyn`: `dyn BufRead`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/xc7/bitstream.rs:361:37
[INFO] [stdout]     |
[INFO] [stdout] 361 |     fn to_bytes(&self, writer: &mut Write) -> Result<(), Error> {
[INFO] [stdout]     |                                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/xc7/frame_address.rs:532:18
[INFO] [stdout]     |
[INFO] [stdout] 532 |                 0...1 => assert_eq!(addr, (range_start + ii as u8).unwrap()),
[INFO] [stdout]     |                  ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/xc7/frame_address.rs:907:18
[INFO] [stdout]     |
[INFO] [stdout] 907 |                 0...1 => assert_eq!(addr, (range1_start + ii as u8).unwrap()),
[INFO] [stdout]     |                  ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/xc7/frame_address.rs:908:18
[INFO] [stdout]     |
[INFO] [stdout] 908 |                 2...3 => assert_eq!(addr, (range2_start + (ii as u8 - 2)).unwrap()),
[INFO] [stdout]     |                  ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/xc7/frame_address.rs:983:18
[INFO] [stdout]     |
[INFO] [stdout] 983 |                 0...1 => assert_eq!(addr, (range1_start + ii as u8).unwrap()),
[INFO] [stdout]     |                  ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/xc7/frame_address.rs:984:18
[INFO] [stdout]     |
[INFO] [stdout] 984 |                 2...3 => assert_eq!(addr, (range2_start + (ii as u8 - 2)).unwrap()),
[INFO] [stdout]     |                  ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]     --> src/xc7/frame_address.rs:1022:18
[INFO] [stdout]      |
[INFO] [stdout] 1022 |                 0...1 => assert_eq!(addr, (range2_start + ii as u8).unwrap()),
[INFO] [stdout]      |                  ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/xc7/configuration.rs:132:25
[INFO] [stdout]     |
[INFO] [stdout] 132 |                     let mut frame_address_iter = device_def.config_mem_layout.iter();
[INFO] [stdout]     |                         ----^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/xc7/configuration.rs:175:25
[INFO] [stdout]     |
[INFO] [stdout] 175 |                     let mut frame_address_iter = device_def.config_mem_layout.iter();
[INFO] [stdout]     |                         ----^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/xc7/configuration.rs:132:25
[INFO] [stdout]     |
[INFO] [stdout] 132 |                     let mut frame_address_iter = device_def.config_mem_layout.iter();
[INFO] [stdout]     |                         ----^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/xc7/configuration.rs:175:25
[INFO] [stdout]     |
[INFO] [stdout] 175 |                     let mut frame_address_iter = device_def.config_mem_layout.iter();
[INFO] [stdout]     |                         ----^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/xc7/bitstream.rs:73:10
[INFO] [stdout]    |
[INFO] [stdout] 73 | #[derive(PackedStruct, Default, Debug, PartialEq)]
[INFO] [stdout]    |          ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/xc7/bitstream.rs:73:10
[INFO] [stdout]    |
[INFO] [stdout] 73 | #[derive(PackedStruct, Default, Debug, PartialEq)]
[INFO] [stdout]    |          ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/xc7/bitstream.rs:83:10
[INFO] [stdout]    |
[INFO] [stdout] 83 | #[derive(PackedStruct, Default, Debug, PartialEq)]
[INFO] [stdout]    |          ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/xc7/bitstream.rs:105:10
[INFO] [stdout]     |
[INFO] [stdout] 105 | #[derive(PackedStruct, Default, Debug, PartialEq)]
[INFO] [stdout]     |          ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/xc7/frame_address.rs:35:101
[INFO] [stdout]    |
[INFO] [stdout] 35 | #[derive(Clone, Copy, Debug, Default, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize, PackedStruct)]
[INFO] [stdout]    |                                                                                                     ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/xc7/idcode.rs:12:50
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[derive(Clone, Copy, Debug, Default, PartialEq, PackedStruct)]
[INFO] [stdout]    |                                                  ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]  --> src/xc7/registers.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[derive(Debug, PackedStruct)]
[INFO] [stdout]   |                 ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]   |
[INFO] [stdout]   = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/xc7/registers.rs:53:26
[INFO] [stdout]    |
[INFO] [stdout] 53 | #[derive(Debug, Default, PackedStruct)]
[INFO] [stdout]    |                          ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/xc7/registers.rs:66:26
[INFO] [stdout]    |
[INFO] [stdout] 66 | #[derive(Debug, Default, PackedStruct)]
[INFO] [stdout]    |                          ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/xc7/registers.rs:133:26
[INFO] [stdout]     |
[INFO] [stdout] 133 | #[derive(Debug, Default, PackedStruct)]
[INFO] [stdout]     |                          ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/xc7/registers.rs:194:26
[INFO] [stdout]     |
[INFO] [stdout] 194 | #[derive(Debug, Default, PackedStruct)]
[INFO] [stdout]     |                          ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/xc7/registers.rs:246:26
[INFO] [stdout]     |
[INFO] [stdout] 246 | #[derive(Debug, Default, PackedStruct)]
[INFO] [stdout]     |                          ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/xc7/registers.rs:295:26
[INFO] [stdout]     |
[INFO] [stdout] 295 | #[derive(Debug, Default, PackedStruct)]
[INFO] [stdout]     |                          ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/xc7/registers.rs:333:26
[INFO] [stdout]     |
[INFO] [stdout] 333 | #[derive(Debug, Default, PackedStruct)]
[INFO] [stdout]     |                          ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/xc7/registers.rs:362:26
[INFO] [stdout]     |
[INFO] [stdout] 362 | #[derive(Debug, Default, PackedStruct)]
[INFO] [stdout]     |                          ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/xc7/registers.rs:381:26
[INFO] [stdout]     |
[INFO] [stdout] 381 | #[derive(Debug, Default, PackedStruct)]
[INFO] [stdout]     |                          ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/xc7/registers.rs:400:26
[INFO] [stdout]     |
[INFO] [stdout] 400 | #[derive(Debug, Default, PackedStruct)]
[INFO] [stdout]     |                          ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/xc7/registers.rs:458:26
[INFO] [stdout]     |
[INFO] [stdout] 458 | #[derive(Debug, Default, PackedStruct)]
[INFO] [stdout]     |                          ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/xc7/registers.rs:471:26
[INFO] [stdout]     |
[INFO] [stdout] 471 | #[derive(Debug, Default, PackedStruct)]
[INFO] [stdout]     |                          ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/xc7/registers.rs:484:26
[INFO] [stdout]     |
[INFO] [stdout] 484 | #[derive(Debug, Default, PackedStruct)]
[INFO] [stdout]     |                          ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 30 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]   --> src/xc7/frame_address.rs:83:41
[INFO] [stdout]    |
[INFO] [stdout] 83 |             None => panic!("FrameAddress{minor: 0} + 1 yielded no result"),
[INFO] [stdout]    |                                         ^        ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]    = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 83 |             None => panic!("{}", "FrameAddress{minor: 0} + 1 yielded no result"),
[INFO] [stdout]    |                            +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/xc7/bitstream.rs:73:10
[INFO] [stdout]    |
[INFO] [stdout] 73 | #[derive(PackedStruct, Default, Debug, PartialEq)]
[INFO] [stdout]    |          ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/xc7/bitstream.rs:73:10
[INFO] [stdout]    |
[INFO] [stdout] 73 | #[derive(PackedStruct, Default, Debug, PartialEq)]
[INFO] [stdout]    |          ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/xc7/bitstream.rs:83:10
[INFO] [stdout]    |
[INFO] [stdout] 83 | #[derive(PackedStruct, Default, Debug, PartialEq)]
[INFO] [stdout]    |          ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/xc7/bitstream.rs:105:10
[INFO] [stdout]     |
[INFO] [stdout] 105 | #[derive(PackedStruct, Default, Debug, PartialEq)]
[INFO] [stdout]     |          ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/xc7/frame_address.rs:35:101
[INFO] [stdout]    |
[INFO] [stdout] 35 | #[derive(Clone, Copy, Debug, Default, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize, PackedStruct)]
[INFO] [stdout]    |                                                                                                     ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/xc7/idcode.rs:12:50
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[derive(Clone, Copy, Debug, Default, PartialEq, PackedStruct)]
[INFO] [stdout]    |                                                  ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]  --> src/xc7/registers.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[derive(Debug, PackedStruct)]
[INFO] [stdout]   |                 ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]   |
[INFO] [stdout]   = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/xc7/registers.rs:53:26
[INFO] [stdout]    |
[INFO] [stdout] 53 | #[derive(Debug, Default, PackedStruct)]
[INFO] [stdout]    |                          ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/xc7/registers.rs:66:26
[INFO] [stdout]    |
[INFO] [stdout] 66 | #[derive(Debug, Default, PackedStruct)]
[INFO] [stdout]    |                          ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/xc7/registers.rs:133:26
[INFO] [stdout]     |
[INFO] [stdout] 133 | #[derive(Debug, Default, PackedStruct)]
[INFO] [stdout]     |                          ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/xc7/registers.rs:194:26
[INFO] [stdout]     |
[INFO] [stdout] 194 | #[derive(Debug, Default, PackedStruct)]
[INFO] [stdout]     |                          ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/xc7/registers.rs:246:26
[INFO] [stdout]     |
[INFO] [stdout] 246 | #[derive(Debug, Default, PackedStruct)]
[INFO] [stdout]     |                          ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/xc7/registers.rs:295:26
[INFO] [stdout]     |
[INFO] [stdout] 295 | #[derive(Debug, Default, PackedStruct)]
[INFO] [stdout]     |                          ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/xc7/registers.rs:333:26
[INFO] [stdout]     |
[INFO] [stdout] 333 | #[derive(Debug, Default, PackedStruct)]
[INFO] [stdout]     |                          ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/xc7/registers.rs:362:26
[INFO] [stdout]     |
[INFO] [stdout] 362 | #[derive(Debug, Default, PackedStruct)]
[INFO] [stdout]     |                          ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/xc7/registers.rs:381:26
[INFO] [stdout]     |
[INFO] [stdout] 381 | #[derive(Debug, Default, PackedStruct)]
[INFO] [stdout]     |                          ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/xc7/registers.rs:400:26
[INFO] [stdout]     |
[INFO] [stdout] 400 | #[derive(Debug, Default, PackedStruct)]
[INFO] [stdout]     |                          ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/xc7/registers.rs:458:26
[INFO] [stdout]     |
[INFO] [stdout] 458 | #[derive(Debug, Default, PackedStruct)]
[INFO] [stdout]     |                          ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/xc7/registers.rs:471:26
[INFO] [stdout]     |
[INFO] [stdout] 471 | #[derive(Debug, Default, PackedStruct)]
[INFO] [stdout]     |                          ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/xc7/registers.rs:484:26
[INFO] [stdout]     |
[INFO] [stdout] 484 | #[derive(Debug, Default, PackedStruct)]
[INFO] [stdout]     |                          ^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the derive macro `PackedStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 37 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/bin/xc7-tool.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/bin/xc7-tool.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/xc7-tool.rs:237:17
[INFO] [stdout]     |
[INFO] [stdout] 237 |             let mut device_file = std::fs::File::open(device_file)?;
[INFO] [stdout]     |                 ----^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/xc7-tool.rs:247:17
[INFO] [stdout]     |
[INFO] [stdout] 247 |             let mut device_file = std::fs::File::open(device_file)?;
[INFO] [stdout]     |                 ----^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/xc7-tool.rs:237:17
[INFO] [stdout]     |
[INFO] [stdout] 237 |             let mut device_file = std::fs::File::open(device_file)?;
[INFO] [stdout]     |                 ----^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/xc7-tool.rs:247:17
[INFO] [stdout]     |
[INFO] [stdout] 247 |             let mut device_file = std::fs::File::open(device_file)?;
[INFO] [stdout]     |                 ----^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.83s
[INFO] running `Command { std: "docker" "inspect" "240f7e43d4eff096aa3e8c192aa9957925ee10f3095bd5c1cba725a38aa660f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "240f7e43d4eff096aa3e8c192aa9957925ee10f3095bd5c1cba725a38aa660f2", kill_on_drop: false }`
[INFO] [stdout] 240f7e43d4eff096aa3e8c192aa9957925ee10f3095bd5c1cba725a38aa660f2
