[INFO] cloning repository https://github.com/fabrlyn/b2x
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fabrlyn/b2x" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffabrlyn%2Fb2x", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffabrlyn%2Fb2x'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bae02c986faaa8c3ec762c4c9dcef3ce7a3f55b1
[INFO] testing fabrlyn/b2x against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffabrlyn%2Fb2x" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/fabrlyn/b2x
[INFO] finished tweaking git repo https://github.com/fabrlyn/b2x
[INFO] tweaked toml for git repo https://github.com/fabrlyn/b2x written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/fabrlyn/b2x on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/fabrlyn/b2x already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 91576b2d16e5dc3658f576dd2e441b7a9366ecc57e82f44a1510182490ec87d3
[INFO] running `Command { std: "docker" "start" "-a" "91576b2d16e5dc3658f576dd2e441b7a9366ecc57e82f44a1510182490ec87d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91576b2d16e5dc3658f576dd2e441b7a9366ecc57e82f44a1510182490ec87d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91576b2d16e5dc3658f576dd2e441b7a9366ecc57e82f44a1510182490ec87d3", kill_on_drop: false }`
[INFO] [stdout] 91576b2d16e5dc3658f576dd2e441b7a9366ecc57e82f44a1510182490ec87d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 298e36301fff9727034c6a8076df3fcc8be80441927714f382913c35ef9e28e2
[INFO] running `Command { std: "docker" "start" "-a" "298e36301fff9727034c6a8076df3fcc8be80441927714f382913c35ef9e28e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling libc v0.2.99
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling encode_unicode v0.3.6
[INFO] [stderr]    Compiling os_str_bytes v3.1.0
[INFO] [stderr]    Compiling textwrap v0.14.2
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling prettytable-rs v0.8.0
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.4
[INFO] [stderr]    Compiling clap v3.0.0-beta.4
[INFO] [stderr]    Compiling b2x v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `big_endian` is never used
[INFO] [stdout]   --> src/bit_group/mod.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl<'a, O> DecimalConverter<'a, O, LittleEndian> {
[INFO] [stdout]    | ------------------------------------------------- method in this implementation
[INFO] [stdout] 11 |     pub fn big_endian(self) -> DecimalConverter<'a, O, BigEndian> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `little_endian` is never used
[INFO] [stdout]   --> src/bit_group/mod.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl<'a, O> DecimalConverter<'a, O, BigEndian> {
[INFO] [stdout]    | ---------------------------------------------- method in this implementation
[INFO] [stdout] 21 |     pub fn little_endian(self) -> DecimalConverter<'a, O, LittleEndian> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `DecimalConverterExt` is never used
[INFO] [stdout]   --> src/bit_group/common.rs:11:11
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub trait DecimalConverterExt {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `FromBinary` is never used
[INFO] [stdout]   --> src/bit_group/common.rs:18:11
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub trait FromBinary {
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BigEndian` is never constructed
[INFO] [stdout]   --> src/bit_group/common.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct BigEndian;
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DecimalConverter` is never constructed
[INFO] [stdout]   --> src/bit_group/common.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct DecimalConverter<'a, O, E> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `GroupSizeOutOfBounds` and `ParseError` are never constructed
[INFO] [stdout]   --> src/bit_group/common.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub enum DecimalConverterError {
[INFO] [stdout]    |          --------------------- variants in this enum
[INFO] [stdout] 41 |     GroupSizeOutOfBounds,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 42 |     ParseError(String),
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DecimalConverterError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ExactBitGroup` is never constructed
[INFO] [stdout]   --> src/bit_group/exact.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct ExactBitGroup<T>(PhantomData<T>);
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]   --> src/bit_group/exact.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl<'a, E> DecimalConverter<'a, DefaultBitGroup, E> {
[INFO] [stdout]    | ---------------------------------------------------- methods in this implementation
[INFO] [stdout] 16 |     fn into_exact<N>(self) -> DecimalConverter<'a, ExactBitGroup<N>, E> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub fn u8(self) -> DecimalConverter<'a, ExactBitGroup<u8>, E> {
[INFO] [stdout]    |            ^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn i8(self) -> DecimalConverter<'a, ExactBitGroup<i8>, E> {
[INFO] [stdout]    |            ^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn u16(self) -> DecimalConverter<'a, ExactBitGroup<u16>, E> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn i16(self) -> DecimalConverter<'a, ExactBitGroup<i16>, E> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn u32(self) -> DecimalConverter<'a, ExactBitGroup<u32>, E> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     pub fn i32(self) -> DecimalConverter<'a, ExactBitGroup<i32>, E> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn u64(self) -> DecimalConverter<'a, ExactBitGroup<u64>, E> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 50 |     pub fn i64(self) -> DecimalConverter<'a, ExactBitGroup<i64>, E> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |     pub fn u128(self) -> DecimalConverter<'a, ExactBitGroup<u128>, E> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     pub fn i128(self) -> DecimalConverter<'a, ExactBitGroup<i128>, E> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]   --> src/bit_group/spaced.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl<'a, E> DecimalConverter<'a, DefaultBitGroup, E> {
[INFO] [stdout]    | ---------------------------------------------------- methods in this implementation
[INFO] [stdout] 16 |     fn into_spaced<N>(self) -> DecimalConverter<'a, SpacedBitGroup<N>, E> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub fn spaced_u8(self) -> DecimalConverter<'a, SpacedBitGroup<u8>, E> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn spaced_i8(self) -> DecimalConverter<'a, SpacedBitGroup<i8>, E> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn spaced_u16(self) -> DecimalConverter<'a, SpacedBitGroup<u16>, E> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn spaced_i16(self) -> DecimalConverter<'a, SpacedBitGroup<i16>, E> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     pub fn spaced_u32(self) -> DecimalConverter<'a, SpacedBitGroup<u32>, E> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     pub fn spaced_i32(self) -> DecimalConverter<'a, SpacedBitGroup<i32>, E> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     pub fn spaced_u64(self) -> DecimalConverter<'a, SpacedBitGroup<u64>, E> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |     pub fn spaced_i64(self) -> DecimalConverter<'a, SpacedBitGroup<i64>, E> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn spaced_u128(self) -> DecimalConverter<'a, SpacedBitGroup<u128>, E> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub fn spaced_i128(self) -> DecimalConverter<'a, SpacedBitGroup<i128>, E> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/bit_group/spaced.rs:88:12
[INFO] [stdout]    |
[INFO] [stdout] 87 | impl<'a, T> DecimalConverter<'a, SpacedBitGroup<T>, LittleEndian> {
[INFO] [stdout]    | ----------------------------------------------------------------- associated function in this implementation
[INFO] [stdout] 88 |     pub fn new(input: &'a str) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `VariableBitGroup` is never constructed
[INFO] [stdout]  --> src/bit_group/variable.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct VariableBitGroup(u8);
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `bit_group_size` is never used
[INFO] [stdout]  --> src/bit_group/variable.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl<'a, O, E> DecimalConverter<'a, O, E> {
[INFO] [stdout]   | ----------------------------------------- method in this implementation
[INFO] [stdout] 8 |     pub fn bit_group_size(
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `BitSize` is never used
[INFO] [stdout]  --> src/bit_size.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait BitSize {
[INFO] [stdout]   |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_binary_string` is never used
[INFO] [stdout]  --> src/from_binary.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait FromBinaryString {
[INFO] [stdout]   |           ---------------- associated function in this trait
[INFO] [stdout] ...
[INFO] [stdout] 4 |     fn from_binary_string(input: &str) -> Result<Self::Output, String>;
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ToResult` is never used
[INFO] [stdout]  --> src/binary.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub type ToResult<T> = Result<Vec<T>, String>;
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `to_decimal` is never used
[INFO] [stdout]  --> src/binary.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn to_decimal<T: BitSize + FromBinaryString>(
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `little_endian_to_decimal` is never used
[INFO] [stdout]   --> src/binary.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn little_endian_to_decimal<T: BitSize + FromBinaryString>(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `big_endian_to_decimal` is never used
[INFO] [stdout]   --> src/binary.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn big_endian_to_decimal<T: BitSize + FromBinaryString>(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/bit_group/common.rs:15:16
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn decimal(&self) -> DecimalConverter<Self::Output, Self::Endian>;
[INFO] [stdout]    |                ^^^^^     -------------------------------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                |
[INFO] [stdout]    |                this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn decimal(&self) -> DecimalConverter<'_, Self::Output, Self::Endian>;
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/bit_group/common.rs:51:16
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn decimal(&self) -> DecimalConverter<Self::Output, Self::Endian> {
[INFO] [stdout]    |                ^^^^^     -------------------------------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                |
[INFO] [stdout]    |                this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn decimal(&self) -> DecimalConverter<'_, Self::Output, Self::Endian> {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/bit_group/common.rs:60:16
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn decimal(&self) -> DecimalConverter<Self::Output, Self::Endian> {
[INFO] [stdout]    |                ^^^^^     -------------------------------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                |
[INFO] [stdout]    |                this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn decimal(&self) -> DecimalConverter<'_, Self::Output, Self::Endian> {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/cli/mod.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |     let args = Args {
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/cli/mod.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |     let input = matches.value_of("input").unwrap();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `bit_group`, `signed`, and `output` are never read
[INFO] [stdout]   --> src/cli/mod.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 71 | struct Args {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 72 |     bit_group: u8,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 73 |     signed: bool,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 74 |     output: Output,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 57.45s
[INFO] running `Command { std: "docker" "inspect" "298e36301fff9727034c6a8076df3fcc8be80441927714f382913c35ef9e28e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "298e36301fff9727034c6a8076df3fcc8be80441927714f382913c35ef9e28e2", kill_on_drop: false }`
[INFO] [stdout] 298e36301fff9727034c6a8076df3fcc8be80441927714f382913c35ef9e28e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e40c0981b3616f44da3a191b1d161fae5e5c2195ef952675f1fc93351ae68e3
[INFO] running `Command { std: "docker" "start" "-a" "2e40c0981b3616f44da3a191b1d161fae5e5c2195ef952675f1fc93351ae68e3", kill_on_drop: false }`
[INFO] [stdout] warning: method `big_endian` is never used
[INFO] [stdout]   --> src/bit_group/mod.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl<'a, O> DecimalConverter<'a, O, LittleEndian> {
[INFO] [stdout]    | ------------------------------------------------- method in this implementation
[INFO] [stdout] 11 |     pub fn big_endian(self) -> DecimalConverter<'a, O, BigEndian> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `little_endian` is never used
[INFO] [stdout]   --> src/bit_group/mod.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl<'a, O> DecimalConverter<'a, O, BigEndian> {
[INFO] [stdout]    | ---------------------------------------------- method in this implementation
[INFO] [stdout] 21 |     pub fn little_endian(self) -> DecimalConverter<'a, O, LittleEndian> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `DecimalConverterExt` is never used
[INFO] [stdout]   --> src/bit_group/common.rs:11:11
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub trait DecimalConverterExt {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `FromBinary` is never used
[INFO] [stdout]   --> src/bit_group/common.rs:18:11
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub trait FromBinary {
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BigEndian` is never constructed
[INFO] [stdout]   --> src/bit_group/common.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct BigEndian;
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DecimalConverter` is never constructed
[INFO] [stdout]   --> src/bit_group/common.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct DecimalConverter<'a, O, E> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `GroupSizeOutOfBounds` and `ParseError` are never constructed
[INFO] [stdout]   --> src/bit_group/common.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub enum DecimalConverterError {
[INFO] [stdout]    |          --------------------- variants in this enum
[INFO] [stdout] 41 |     GroupSizeOutOfBounds,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 42 |     ParseError(String),
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DecimalConverterError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ExactBitGroup` is never constructed
[INFO] [stdout]   --> src/bit_group/exact.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct ExactBitGroup<T>(PhantomData<T>);
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]   --> src/bit_group/exact.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl<'a, E> DecimalConverter<'a, DefaultBitGroup, E> {
[INFO] [stdout]    | ---------------------------------------------------- methods in this implementation
[INFO] [stdout] 16 |     fn into_exact<N>(self) -> DecimalConverter<'a, ExactBitGroup<N>, E> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub fn u8(self) -> DecimalConverter<'a, ExactBitGroup<u8>, E> {
[INFO] [stdout]    |            ^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn i8(self) -> DecimalConverter<'a, ExactBitGroup<i8>, E> {
[INFO] [stdout]    |            ^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn u16(self) -> DecimalConverter<'a, ExactBitGroup<u16>, E> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn i16(self) -> DecimalConverter<'a, ExactBitGroup<i16>, E> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn u32(self) -> DecimalConverter<'a, ExactBitGroup<u32>, E> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     pub fn i32(self) -> DecimalConverter<'a, ExactBitGroup<i32>, E> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn u64(self) -> DecimalConverter<'a, ExactBitGroup<u64>, E> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 50 |     pub fn i64(self) -> DecimalConverter<'a, ExactBitGroup<i64>, E> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |     pub fn u128(self) -> DecimalConverter<'a, ExactBitGroup<u128>, E> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     pub fn i128(self) -> DecimalConverter<'a, ExactBitGroup<i128>, E> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling b2x v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]   --> src/bit_group/spaced.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl<'a, E> DecimalConverter<'a, DefaultBitGroup, E> {
[INFO] [stdout]    | ---------------------------------------------------- methods in this implementation
[INFO] [stdout] 16 |     fn into_spaced<N>(self) -> DecimalConverter<'a, SpacedBitGroup<N>, E> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub fn spaced_u8(self) -> DecimalConverter<'a, SpacedBitGroup<u8>, E> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn spaced_i8(self) -> DecimalConverter<'a, SpacedBitGroup<i8>, E> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn spaced_u16(self) -> DecimalConverter<'a, SpacedBitGroup<u16>, E> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn spaced_i16(self) -> DecimalConverter<'a, SpacedBitGroup<i16>, E> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     pub fn spaced_u32(self) -> DecimalConverter<'a, SpacedBitGroup<u32>, E> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     pub fn spaced_i32(self) -> DecimalConverter<'a, SpacedBitGroup<i32>, E> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     pub fn spaced_u64(self) -> DecimalConverter<'a, SpacedBitGroup<u64>, E> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |     pub fn spaced_i64(self) -> DecimalConverter<'a, SpacedBitGroup<i64>, E> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn spaced_u128(self) -> DecimalConverter<'a, SpacedBitGroup<u128>, E> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub fn spaced_i128(self) -> DecimalConverter<'a, SpacedBitGroup<i128>, E> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/bit_group/spaced.rs:88:12
[INFO] [stdout]    |
[INFO] [stdout] 87 | impl<'a, T> DecimalConverter<'a, SpacedBitGroup<T>, LittleEndian> {
[INFO] [stdout]    | ----------------------------------------------------------------- associated function in this implementation
[INFO] [stdout] 88 |     pub fn new(input: &'a str) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `VariableBitGroup` is never constructed
[INFO] [stdout]  --> src/bit_group/variable.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct VariableBitGroup(u8);
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `bit_group_size` is never used
[INFO] [stdout]  --> src/bit_group/variable.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl<'a, O, E> DecimalConverter<'a, O, E> {
[INFO] [stdout]   | ----------------------------------------- method in this implementation
[INFO] [stdout] 8 |     pub fn bit_group_size(
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `BitSize` is never used
[INFO] [stdout]  --> src/bit_size.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait BitSize {
[INFO] [stdout]   |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_binary_string` is never used
[INFO] [stdout]  --> src/from_binary.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait FromBinaryString {
[INFO] [stdout]   |           ---------------- associated function in this trait
[INFO] [stdout] ...
[INFO] [stdout] 4 |     fn from_binary_string(input: &str) -> Result<Self::Output, String>;
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ToResult` is never used
[INFO] [stdout]  --> src/binary.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub type ToResult<T> = Result<Vec<T>, String>;
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `to_decimal` is never used
[INFO] [stdout]  --> src/binary.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn to_decimal<T: BitSize + FromBinaryString>(
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `little_endian_to_decimal` is never used
[INFO] [stdout]   --> src/binary.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn little_endian_to_decimal<T: BitSize + FromBinaryString>(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `big_endian_to_decimal` is never used
[INFO] [stdout]   --> src/binary.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn big_endian_to_decimal<T: BitSize + FromBinaryString>(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/bit_group/common.rs:15:16
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn decimal(&self) -> DecimalConverter<Self::Output, Self::Endian>;
[INFO] [stdout]    |                ^^^^^     -------------------------------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                |
[INFO] [stdout]    |                this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn decimal(&self) -> DecimalConverter<'_, Self::Output, Self::Endian>;
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/bit_group/common.rs:51:16
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn decimal(&self) -> DecimalConverter<Self::Output, Self::Endian> {
[INFO] [stdout]    |                ^^^^^     -------------------------------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                |
[INFO] [stdout]    |                this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn decimal(&self) -> DecimalConverter<'_, Self::Output, Self::Endian> {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/bit_group/common.rs:60:16
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn decimal(&self) -> DecimalConverter<Self::Output, Self::Endian> {
[INFO] [stdout]    |                ^^^^^     -------------------------------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                |
[INFO] [stdout]    |                this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn decimal(&self) -> DecimalConverter<'_, Self::Output, Self::Endian> {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/cli/mod.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |     let args = Args {
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/cli/mod.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |     let input = matches.value_of("input").unwrap();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `bit_group`, `signed`, and `output` are never read
[INFO] [stdout]   --> src/cli/mod.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 71 | struct Args {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 72 |     bit_group: u8,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 73 |     signed: bool,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 74 |     output: Output,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `big_endian` is never used
[INFO] [stdout]   --> src/bit_group/mod.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl<'a, O> DecimalConverter<'a, O, LittleEndian> {
[INFO] [stdout]    | ------------------------------------------------- method in this implementation
[INFO] [stdout] 11 |     pub fn big_endian(self) -> DecimalConverter<'a, O, BigEndian> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `little_endian` is never used
[INFO] [stdout]   --> src/bit_group/mod.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl<'a, O> DecimalConverter<'a, O, BigEndian> {
[INFO] [stdout]    | ---------------------------------------------- method in this implementation
[INFO] [stdout] 21 |     pub fn little_endian(self) -> DecimalConverter<'a, O, LittleEndian> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `GroupSizeOutOfBounds` is never constructed
[INFO] [stdout]   --> src/bit_group/common.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub enum DecimalConverterError {
[INFO] [stdout]    |          --------------------- variant in this enum
[INFO] [stdout] 41 |     GroupSizeOutOfBounds,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DecimalConverterError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]   --> src/bit_group/spaced.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl<'a, E> DecimalConverter<'a, DefaultBitGroup, E> {
[INFO] [stdout]    | ---------------------------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn spaced_i8(self) -> DecimalConverter<'a, SpacedBitGroup<i8>, E> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn spaced_u16(self) -> DecimalConverter<'a, SpacedBitGroup<u16>, E> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn spaced_i16(self) -> DecimalConverter<'a, SpacedBitGroup<i16>, E> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     pub fn spaced_u32(self) -> DecimalConverter<'a, SpacedBitGroup<u32>, E> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     pub fn spaced_i32(self) -> DecimalConverter<'a, SpacedBitGroup<i32>, E> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     pub fn spaced_u64(self) -> DecimalConverter<'a, SpacedBitGroup<u64>, E> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |     pub fn spaced_i64(self) -> DecimalConverter<'a, SpacedBitGroup<i64>, E> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn spaced_u128(self) -> DecimalConverter<'a, SpacedBitGroup<u128>, E> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub fn spaced_i128(self) -> DecimalConverter<'a, SpacedBitGroup<i128>, E> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `VariableBitGroup` is never constructed
[INFO] [stdout]  --> src/bit_group/variable.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct VariableBitGroup(u8);
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `bit_group_size` is never used
[INFO] [stdout]  --> src/bit_group/variable.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl<'a, O, E> DecimalConverter<'a, O, E> {
[INFO] [stdout]   | ----------------------------------------- method in this implementation
[INFO] [stdout] 8 |     pub fn bit_group_size(
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `big_endian_to_decimal` is never used
[INFO] [stdout]   --> src/binary.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn big_endian_to_decimal<T: BitSize + FromBinaryString>(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/bit_group/common.rs:15:16
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn decimal(&self) -> DecimalConverter<Self::Output, Self::Endian>;
[INFO] [stdout]    |                ^^^^^     -------------------------------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                |
[INFO] [stdout]    |                this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn decimal(&self) -> DecimalConverter<'_, Self::Output, Self::Endian>;
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/bit_group/common.rs:51:16
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn decimal(&self) -> DecimalConverter<Self::Output, Self::Endian> {
[INFO] [stdout]    |                ^^^^^     -------------------------------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                |
[INFO] [stdout]    |                this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn decimal(&self) -> DecimalConverter<'_, Self::Output, Self::Endian> {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/bit_group/common.rs:60:16
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn decimal(&self) -> DecimalConverter<Self::Output, Self::Endian> {
[INFO] [stdout]    |                ^^^^^     -------------------------------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                |
[INFO] [stdout]    |                this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn decimal(&self) -> DecimalConverter<'_, Self::Output, Self::Endian> {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.00s
[INFO] running `Command { std: "docker" "inspect" "2e40c0981b3616f44da3a191b1d161fae5e5c2195ef952675f1fc93351ae68e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e40c0981b3616f44da3a191b1d161fae5e5c2195ef952675f1fc93351ae68e3", kill_on_drop: false }`
[INFO] [stdout] 2e40c0981b3616f44da3a191b1d161fae5e5c2195ef952675f1fc93351ae68e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] aae8c00b5e24144b4786d77fecf21ce14e2625a5d2238d56ffc212574886e001
[INFO] running `Command { std: "docker" "start" "-a" "aae8c00b5e24144b4786d77fecf21ce14e2625a5d2238d56ffc212574886e001", kill_on_drop: false }`
[INFO] [stderr] warning: method `big_endian` is never used
[INFO] [stderr]   --> src/bit_group/mod.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 10 | impl<'a, O> DecimalConverter<'a, O, LittleEndian> {
[INFO] [stderr]    | ------------------------------------------------- method in this implementation
[INFO] [stderr] 11 |     pub fn big_endian(self) -> DecimalConverter<'a, O, BigEndian> {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `little_endian` is never used
[INFO] [stderr]   --> src/bit_group/mod.rs:21:12
[INFO] [stderr]    |
[INFO] [stderr] 20 | impl<'a, O> DecimalConverter<'a, O, BigEndian> {
[INFO] [stderr]    | ---------------------------------------------- method in this implementation
[INFO] [stderr] 21 |     pub fn little_endian(self) -> DecimalConverter<'a, O, LittleEndian> {
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `DecimalConverterExt` is never used
[INFO] [stderr]   --> src/bit_group/common.rs:11:11
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub trait DecimalConverterExt {
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `FromBinary` is never used
[INFO] [stderr]   --> src/bit_group/common.rs:18:11
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub trait FromBinary {
[INFO] [stderr]    |           ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `BigEndian` is never constructed
[INFO] [stderr]   --> src/bit_group/common.rs:26:12
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub struct BigEndian;
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `DecimalConverter` is never constructed
[INFO] [stderr]   --> src/bit_group/common.rs:31:12
[INFO] [stderr]    |
[INFO] [stderr] 31 | pub struct DecimalConverter<'a, O, E> {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variants `GroupSizeOutOfBounds` and `ParseError` are never constructed
[INFO] [stderr]   --> src/bit_group/common.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 40 | pub enum DecimalConverterError {
[INFO] [stderr]    |          --------------------- variants in this enum
[INFO] [stderr] 41 |     GroupSizeOutOfBounds,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 42 |     ParseError(String),
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `DecimalConverterError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: struct `ExactBitGroup` is never constructed
[INFO] [stderr]   --> src/bit_group/exact.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub struct ExactBitGroup<T>(PhantomData<T>);
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: multiple methods are never used
[INFO] [stderr]   --> src/bit_group/exact.rs:16:8
[INFO] [stderr]    |
[INFO] [stderr] 15 | impl<'a, E> DecimalConverter<'a, DefaultBitGroup, E> {
[INFO] [stderr]    | ---------------------------------------------------- methods in this implementation
[INFO] [stderr] 16 |     fn into_exact<N>(self) -> DecimalConverter<'a, ExactBitGroup<N>, E> {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 24 |     pub fn u8(self) -> DecimalConverter<'a, ExactBitGroup<u8>, E> {
[INFO] [stderr]    |            ^^
[INFO] [stderr] ...
[INFO] [stderr] 28 |     pub fn i8(self) -> DecimalConverter<'a, ExactBitGroup<i8>, E> {
[INFO] [stderr]    |            ^^
[INFO] [stderr] ...
[INFO] [stderr] 32 |     pub fn u16(self) -> DecimalConverter<'a, ExactBitGroup<u16>, E> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 35 |     pub fn i16(self) -> DecimalConverter<'a, ExactBitGroup<i16>, E> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 38 |     pub fn u32(self) -> DecimalConverter<'a, ExactBitGroup<u32>, E> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 42 |     pub fn i32(self) -> DecimalConverter<'a, ExactBitGroup<i32>, E> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 46 |     pub fn u64(self) -> DecimalConverter<'a, ExactBitGroup<u64>, E> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 50 |     pub fn i64(self) -> DecimalConverter<'a, ExactBitGroup<i64>, E> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 54 |     pub fn u128(self) -> DecimalConverter<'a, ExactBitGroup<u128>, E> {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 58 |     pub fn i128(self) -> DecimalConverter<'a, ExactBitGroup<i128>, E> {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: multiple methods are never used
[INFO] [stderr]   --> src/bit_group/spaced.rs:16:8
[INFO] [stderr]    |
[INFO] [stderr] 15 | impl<'a, E> DecimalConverter<'a, DefaultBitGroup, E> {
[INFO] [stderr]    | ---------------------------------------------------- methods in this implementation
[INFO] [stderr] 16 |     fn into_spaced<N>(self) -> DecimalConverter<'a, SpacedBitGroup<N>, E> {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 24 |     pub fn spaced_u8(self) -> DecimalConverter<'a, SpacedBitGroup<u8>, E> {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 28 |     pub fn spaced_i8(self) -> DecimalConverter<'a, SpacedBitGroup<i8>, E> {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 32 |     pub fn spaced_u16(self) -> DecimalConverter<'a, SpacedBitGroup<u16>, E> {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 36 |     pub fn spaced_i16(self) -> DecimalConverter<'a, SpacedBitGroup<i16>, E> {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 40 |     pub fn spaced_u32(self) -> DecimalConverter<'a, SpacedBitGroup<u32>, E> {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 44 |     pub fn spaced_i32(self) -> DecimalConverter<'a, SpacedBitGroup<i32>, E> {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 48 |     pub fn spaced_u64(self) -> DecimalConverter<'a, SpacedBitGroup<u64>, E> {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 52 |     pub fn spaced_i64(self) -> DecimalConverter<'a, SpacedBitGroup<i64>, E> {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 56 |     pub fn spaced_u128(self) -> DecimalConverter<'a, SpacedBitGroup<u128>, E> {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 60 |     pub fn spaced_i128(self) -> DecimalConverter<'a, SpacedBitGroup<i128>, E> {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/bit_group/spaced.rs:88:12
[INFO] [stderr]    |
[INFO] [stderr] 87 | impl<'a, T> DecimalConverter<'a, SpacedBitGroup<T>, LittleEndian> {
[INFO] [stderr]    | ----------------------------------------------------------------- associated function in this implementation
[INFO] [stderr] 88 |     pub fn new(input: &'a str) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `VariableBitGroup` is never constructed
[INFO] [stderr]  --> src/bit_group/variable.rs:5:12
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct VariableBitGroup(u8);
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `bit_group_size` is never used
[INFO] [stderr]  --> src/bit_group/variable.rs:8:12
[INFO] [stderr]   |
[INFO] [stderr] 7 | impl<'a, O, E> DecimalConverter<'a, O, E> {
[INFO] [stderr]   | ----------------------------------------- method in this implementation
[INFO] [stderr] 8 |     pub fn bit_group_size(
[INFO] [stderr]   |            ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `BitSize` is never used
[INFO] [stderr]  --> src/bit_size.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub trait BitSize {
[INFO] [stderr]   |           ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `from_binary_string` is never used
[INFO] [stderr]  --> src/from_binary.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub trait FromBinaryString {
[INFO] [stderr]   |           ---------------- associated function in this trait
[INFO] [stderr] ...
[INFO] [stderr] 4 |     fn from_binary_string(input: &str) -> Result<Self::Output, String>;
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `ToResult` is never used
[INFO] [stderr]  --> src/binary.rs:3:10
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub type ToResult<T> = Result<Vec<T>, String>;
[INFO] [stderr]   |          ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `to_decimal` is never used
[INFO] [stderr]  --> src/binary.rs:5:4
[INFO] [stderr]   |
[INFO] [stderr] 5 | fn to_decimal<T: BitSize + FromBinaryString>(
[INFO] [stderr]   |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `little_endian_to_decimal` is never used
[INFO] [stderr]   --> src/binary.rs:18:8
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub fn little_endian_to_decimal<T: BitSize + FromBinaryString>(
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `big_endian_to_decimal` is never used
[INFO] [stderr]   --> src/binary.rs:24:8
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub fn big_endian_to_decimal<T: BitSize + FromBinaryString>(
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]   --> src/bit_group/common.rs:15:16
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn decimal(&self) -> DecimalConverter<Self::Output, Self::Endian>;
[INFO] [stderr]    |                ^^^^^     -------------------------------------------- the lifetime gets resolved as `'_`
[INFO] [stderr]    |                |
[INFO] [stderr]    |                this lifetime flows to the output
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn decimal(&self) -> DecimalConverter<'_, Self::Output, Self::Endian>;
[INFO] [stderr]    |                                           +++
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]   --> src/bit_group/common.rs:51:16
[INFO] [stderr]    |
[INFO] [stderr] 51 |     fn decimal(&self) -> DecimalConverter<Self::Output, Self::Endian> {
[INFO] [stderr]    |                ^^^^^     -------------------------------------------- the lifetime gets resolved as `'_`
[INFO] [stderr]    |                |
[INFO] [stderr]    |                this lifetime flows to the output
[INFO] [stderr]    |
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]    |
[INFO] [stderr] 51 |     fn decimal(&self) -> DecimalConverter<'_, Self::Output, Self::Endian> {
[INFO] [stderr]    |                                           +++
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]   --> src/bit_group/common.rs:60:16
[INFO] [stderr]    |
[INFO] [stderr] 60 |     fn decimal(&self) -> DecimalConverter<Self::Output, Self::Endian> {
[INFO] [stderr]    |                ^^^^^     -------------------------------------------- the lifetime gets resolved as `'_`
[INFO] [stderr]    |                |
[INFO] [stderr]    |                this lifetime flows to the output
[INFO] [stderr]    |
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]    |
[INFO] [stderr] 60 |     fn decimal(&self) -> DecimalConverter<'_, Self::Output, Self::Endian> {
[INFO] [stderr]    |                                           +++
[INFO] [stderr] 
[INFO] [stderr] warning: `b2x` (lib) generated 22 warnings
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/cli/mod.rs:86:9
[INFO] [stderr]    |
[INFO] [stderr] 86 |     let args = Args {
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]   --> src/cli/mod.rs:92:9
[INFO] [stderr]    |
[INFO] [stderr] 92 |     let input = matches.value_of("input").unwrap();
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stderr] 
[INFO] [stderr] warning: fields `bit_group`, `signed`, and `output` are never read
[INFO] [stderr]   --> src/cli/mod.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 71 | struct Args {
[INFO] [stderr]    |        ---- fields in this struct
[INFO] [stderr] 72 |     bit_group: u8,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 73 |     signed: bool,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 74 |     output: Output,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `b2x` (bin "b2x" test) generated 3 warnings
[INFO] [stderr] warning: variant `GroupSizeOutOfBounds` is never constructed
[INFO] [stderr]   --> src/bit_group/common.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 40 | pub enum DecimalConverterError {
[INFO] [stderr]    |          --------------------- variant in this enum
[INFO] [stderr] 41 |     GroupSizeOutOfBounds,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `DecimalConverterError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: multiple methods are never used
[INFO] [stderr]   --> src/bit_group/spaced.rs:28:12
[INFO] [stderr]    |
[INFO] [stderr] 15 | impl<'a, E> DecimalConverter<'a, DefaultBitGroup, E> {
[INFO] [stderr]    | ---------------------------------------------------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 28 |     pub fn spaced_i8(self) -> DecimalConverter<'a, SpacedBitGroup<i8>, E> {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 32 |     pub fn spaced_u16(self) -> DecimalConverter<'a, SpacedBitGroup<u16>, E> {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 36 |     pub fn spaced_i16(self) -> DecimalConverter<'a, SpacedBitGroup<i16>, E> {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 40 |     pub fn spaced_u32(self) -> DecimalConverter<'a, SpacedBitGroup<u32>, E> {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 44 |     pub fn spaced_i32(self) -> DecimalConverter<'a, SpacedBitGroup<i32>, E> {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 48 |     pub fn spaced_u64(self) -> DecimalConverter<'a, SpacedBitGroup<u64>, E> {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 52 |     pub fn spaced_i64(self) -> DecimalConverter<'a, SpacedBitGroup<i64>, E> {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 56 |     pub fn spaced_u128(self) -> DecimalConverter<'a, SpacedBitGroup<u128>, E> {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 60 |     pub fn spaced_i128(self) -> DecimalConverter<'a, SpacedBitGroup<i128>, E> {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `b2x` (lib test) generated 10 warnings (8 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/b2x-5c844228833d882f)
[INFO] [stdout] running 11 tests
[INFO] [stdout] test bit_group::exact::tests::from_i128_binary_to_decimal ... ok
[INFO] [stdout] test bit_group::exact::tests::from_i64_binary_to_decimal ... ok
[INFO] [stdout] test bit_group::exact::tests::from_i32_binary_to_decimal ... ok
[INFO] [stdout] test bit_group::exact::tests::from_u128_binary_to_decimal ... ok
[INFO] [stdout] test bit_group::exact::tests::from_u16_binary_to_decimal ... ok
[INFO] [stdout] test bit_group::exact::tests::from_u64_binary_to_decimal ... ok
[INFO] [stdout] test bit_group::exact::tests::from_u8_binary_to_decimal ... ok
[INFO] [stdout] test bit_group::exact::tests::from_u32_binary_to_decimal ... ok
[INFO] [stdout] test bit_group::exact::tests::from_i8_binary_to_decimal ... ok
[INFO] [stdout] test bit_group::spaced::tests::from_u8_binary_to_decimal ... FAILED
[INFO] [stdout] test bit_group::exact::tests::from_i16_binary_to_decimal ... ok
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- bit_group::spaced::tests::from_u8_binary_to_decimal stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'bit_group::spaced::tests::from_u8_binary_to_decimal' panicked at src/bit_group/spaced.rs:107:9:
[INFO] [stdout] assertion `left == right` failed
[INFO] [stdout]   left: Ok([10, 2, 11])
[INFO] [stdout]  right: Err(ParseError("1010 10 "))
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5932a2104c02 - std::backtrace_rs::backtrace::libunwind::trace::h73a647620bf1c49d
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5932a2104c02 - std::backtrace_rs::backtrace::trace_unsynchronized::hd4d513ed96cb3cb1
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5932a2104c02 - std::sys::backtrace::_print_fmt::h61bb95f7476aafa5
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x5932a2104c02 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::ha2e7e3a01df69042
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x5932a212a2b3 - core::fmt::rt::Argument::fmt::hf14163372f0f9a76
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x5932a212a2b3 - core::fmt::write::h7cb8f63788cd01d2
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/fmt/mod.rs:1465:25
[INFO] [stdout]    6:     0x5932a2101b93 - std::io::default_write_fmt::h9ed739ccee8a150c
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5932a2101b93 - std::io::Write::write_fmt::h1c0a32da913b32f1
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x5932a2104a52 - std::sys::backtrace::BacktraceLock::print::h3ec4d7883eb25e61
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x5932a210616c - std::panicking::default_hook::{{closure}}::h29548987efd832cb
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:300:27
[INFO] [stdout]   10:     0x5932a2105fc2 - std::panicking::default_hook::ha25170a15c643514
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:324:9
[INFO] [stdout]   11:     0x5932a20ce0e4 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h562adeecbf43c420
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   12:     0x5932a20ce0e4 - test::test_main_with_exit_callback::{{closure}}::h97dd2a879d27e0e4
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x5932a2106b4b - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h7e85cbdbda26fdb7
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   14:     0x5932a2106b4b - std::panicking::rust_panic_with_hook::h0d81afcd829aa24b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:841:13
[INFO] [stdout]   15:     0x5932a210691a - std::panicking::begin_panic_handler::{{closure}}::hc84a33f1202346cf
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:706:13
[INFO] [stdout]   16:     0x5932a21050f9 - std::sys::backtrace::__rust_end_short_backtrace::h373067a14f6c59aa
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:168:18
[INFO] [stdout]   17:     0x5932a21065ad - __rustc[beb0385846a06d21]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:697:5
[INFO] [stdout]   18:     0x5932a2128840 - core::panicking::panic_fmt::ha33fa2ae772efba9
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panicking.rs:75:14
[INFO] [stdout]   19:     0x5932a2128aa7 - core::panicking::assert_failed_inner::h6a89cd271393c011
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panicking.rs:448:17
[INFO] [stdout]   20:     0x5932a2094221 - core::panicking::assert_failed::h5a9a242bb82440b1
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panicking.rs:403:5
[INFO] [stdout]   21:     0x5932a2093fe7 - b2x::bit_group::spaced::tests::from_u8_binary_to_decimal::h231f729d1d48a751
[INFO] [stdout]                                at /opt/rustwide/workdir/src/bit_group/spaced.rs:107:9
[INFO] [stdout]   22:     0x5932a2093fe7 - b2x::bit_group::spaced::tests::from_u8_binary_to_decimal::{{closure}}::h20408d650a4ee2da
[INFO] [stdout]                                at /opt/rustwide/workdir/src/bit_group/spaced.rs:104:35
[INFO] [stdout]   23:     0x5932a2093fe7 - core::ops::function::FnOnce::call_once::h3f4022b785716f77
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5932a20d381b - core::ops::function::FnOnce::call_once::hf84b9c3d864a6959
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x5932a20d381b - test::__rust_begin_short_backtrace::h5724e31441c16fcb
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:648:18
[INFO] [stdout]   26:     0x5932a20d2a5e - test::run_test_in_process::{{closure}}::hbc28c9aa91793d7d
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:671:74
[INFO] [stdout]   27:     0x5932a20d2a5e - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hc17b0e238c0f8f3e
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   28:     0x5932a20d2a5e - std::panicking::catch_unwind::do_call::hcdbce0d6dd6c83ce
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:589:40
[INFO] [stdout]   29:     0x5932a20d2a5e - std::panicking::catch_unwind::h9477967ceea044e8
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:552:19
[INFO] [stdout]   30:     0x5932a20d2a5e - std::panic::catch_unwind::h616a2e249da12e16
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x5932a20d2a5e - test::run_test_in_process::h2758deb0f2e54430
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:671:27
[INFO] [stdout]   32:     0x5932a20d2a5e - test::run_test::{{closure}}::habe5cd2564b18aaa
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:592:43
[INFO] [stdout]   33:     0x5932a2096604 - test::run_test::{{closure}}::h9a0a6928f1a15421
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:622:41
[INFO] [stdout]   34:     0x5932a2096604 - std::sys::backtrace::__rust_begin_short_backtrace::hd68b5332434a22ca
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:152:18
[INFO] [stdout]   35:     0x5932a2099faa - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h264ddcc3098eacae
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   36:     0x5932a2099faa - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h9fa39489749d6f3c
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   37:     0x5932a2099faa - std::panicking::catch_unwind::do_call::hb9a1944b9f85100f
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:589:40
[INFO] [stdout]   38:     0x5932a2099faa - std::panicking::catch_unwind::h0c6f100786c0dad8
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:552:19
[INFO] [stdout]   39:     0x5932a2099faa - std::panic::catch_unwind::hf6084e2723385823
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x5932a2099faa - std::thread::Builder::spawn_unchecked_::{{closure}}::hf0af58ce658143ad
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   41:     0x5932a2099faa - core::ops::function::FnOnce::call_once{{vtable.shim}}::h88a14f9b2e79f9de
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x5932a2109aa7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf31256ba38644b65
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   43:     0x5932a2109aa7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h100ad77f3448041b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   44:     0x5932a2109aa7 - std::sys::pal::unix::thread::Thread::new::thread_start::h1a22ded422ce395b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/pal/unix/thread.rs:97:17
[INFO] [stdout]   45:     0x7aa67a4faaa4 - <unknown>
[INFO] [stdout]   46:     0x7aa67a587a34 - clone
[INFO] [stdout]   47:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     bit_group::spaced::tests::from_u8_binary_to_decimal
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 10 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.24s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "aae8c00b5e24144b4786d77fecf21ce14e2625a5d2238d56ffc212574886e001", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aae8c00b5e24144b4786d77fecf21ce14e2625a5d2238d56ffc212574886e001", kill_on_drop: false }`
[INFO] [stdout] aae8c00b5e24144b4786d77fecf21ce14e2625a5d2238d56ffc212574886e001
