[INFO] fetching crate dec_num 0.1.111...
[INFO] testing dec_num-0.1.111 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate dec_num 0.1.111 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate dec_num 0.1.111
[INFO] finished tweaking crates.io crate dec_num 0.1.111
[INFO] tweaked toml for crates.io crate dec_num 0.1.111 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate dec_num 0.1.111 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate dec_num 0.1.111 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 1ffa5bda5cfc8a4f367c34252eb1a6b7f8dfb4dfb72a42dd02a74d8675fc4d37
[INFO] running `Command { std: "docker" "start" "1ffa5bda5cfc8a4f367c34252eb1a6b7f8dfb4dfb72a42dd02a74d8675fc4d37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ffa5bda5cfc8a4f367c34252eb1a6b7f8dfb4dfb72a42dd02a74d8675fc4d37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "1ffa5bda5cfc8a4f367c34252eb1a6b7f8dfb4dfb72a42dd02a74d8675fc4d37" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ffa5bda5cfc8a4f367c34252eb1a6b7f8dfb4dfb72a42dd02a74d8675fc4d37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "1ffa5bda5cfc8a4f367c34252eb1a6b7f8dfb4dfb72a42dd02a74d8675fc4d37" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.2.17
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.7
[INFO] [stderr]    Compiling dec_num v0.1.111 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/lib.rs:79:26
[INFO] [stdout]    |
[INFO] [stdout] 79 |     fn check_carry(self, b: Digit) -> Digit {
[INFO] [stdout]    |                          ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `OpStatus` is never used
[INFO] [stdout]   --> src/lib.rs:31:6
[INFO] [stdout]    |
[INFO] [stdout] 31 | enum OpStatus {}
[INFO] [stdout]    |      ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `check_carry` is never used
[INFO] [stdout]   --> src/lib.rs:79:8
[INFO] [stdout]    |
[INFO] [stdout] 77 | impl Digit {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 78 |     //检查溢出和进位，变符号以及进位
[INFO] [stdout] 79 |     fn check_carry(self, b: Digit) -> Digit {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/main.rs:79:26
[INFO] [stdout]    |
[INFO] [stdout] 79 |     fn check_carry(self, b: Digit) -> Digit {
[INFO] [stdout]    |                          ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Nan` and `Infinte` are never constructed
[INFO] [stdout]   --> src/main.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | enum Basic {
[INFO] [stdout]    |      ----- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 22 |     Nan,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 23 |     Infinte,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Basic` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Padding` is never constructed
[INFO] [stdout]   --> src/main.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | enum Digit {
[INFO] [stdout]    |      ----- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 29 |     Padding, //字面意思人如其名。
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Digit` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `OpStatus` is never used
[INFO] [stdout]   --> src/main.rs:31:6
[INFO] [stdout]    |
[INFO] [stdout] 31 | enum OpStatus {}
[INFO] [stdout]    |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `sign` is never read
[INFO] [stdout]   --> src/main.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | struct DecNum {
[INFO] [stdout]    |        ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 39 |     sign: bool,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DecNum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `check_carry` is never used
[INFO] [stdout]   --> src/main.rs:79:8
[INFO] [stdout]    |
[INFO] [stdout] 77 | impl Digit {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 78 |     //检查溢出和进位，变符号以及进位
[INFO] [stdout] 79 |     fn check_carry(self, b: Digit) -> Digit {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/main.rs:62:19
[INFO] [stdout]    |
[INFO] [stdout] 62 |             sign: x >= 0,
[INFO] [stdout]    |                   ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 2.46s
[INFO] running `Command { std: "docker" "inspect" "1ffa5bda5cfc8a4f367c34252eb1a6b7f8dfb4dfb72a42dd02a74d8675fc4d37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "1ffa5bda5cfc8a4f367c34252eb1a6b7f8dfb4dfb72a42dd02a74d8675fc4d37" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.119
[INFO] [stderr]    Compiling zerocopy v0.8.55
[INFO] [stderr]    Compiling syn v3.0.3
[INFO] [stderr]    Compiling either v1.17.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.7
[INFO] [stderr]    Compiling ciborium-io v0.2.2
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling regex-automata v0.4.16
[INFO] [stderr]    Compiling clap_builder v4.6.2
[INFO] [stderr]    Compiling is-terminal v0.4.17
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling anes v0.1.6
[INFO] [stderr]    Compiling oorandom v11.1.5
[INFO] [stderr]    Compiling rayon-core v1.13.0
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling rayon v1.12.0
[INFO] [stderr]    Compiling criterion-plot v0.5.0
[INFO] [stderr]    Compiling regex v1.13.1
[INFO] [stderr]    Compiling clap v4.6.4
[INFO] [stderr]    Compiling serde_derive v1.0.229
[INFO] [stderr]    Compiling zerocopy-derive v0.8.55
[INFO] [stderr]    Compiling serde v1.0.229
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling half v2.7.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.7
[INFO] [stderr]    Compiling criterion v0.5.1
[INFO] [stderr]    Compiling dec_num v0.1.111 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/lib.rs:79:26
[INFO] [stdout]    |
[INFO] [stdout] 79 |     fn check_carry(self, b: Digit) -> Digit {
[INFO] [stdout]    |                          ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `OpStatus` is never used
[INFO] [stdout]   --> src/lib.rs:31:6
[INFO] [stdout]    |
[INFO] [stdout] 31 | enum OpStatus {}
[INFO] [stdout]    |      ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `check_carry` is never used
[INFO] [stdout]   --> src/lib.rs:79:8
[INFO] [stdout]    |
[INFO] [stdout] 77 | impl Digit {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 78 |     //检查溢出和进位，变符号以及进位
[INFO] [stdout] 79 |     fn check_carry(self, b: Digit) -> Digit {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/main.rs:79:26
[INFO] [stdout]    |
[INFO] [stdout] 79 |     fn check_carry(self, b: Digit) -> Digit {
[INFO] [stdout]    |                          ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Nan` and `Infinte` are never constructed
[INFO] [stdout]   --> src/main.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | enum Basic {
[INFO] [stdout]    |      ----- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 22 |     Nan,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 23 |     Infinte,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Basic` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Padding` is never constructed
[INFO] [stdout]   --> src/main.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | enum Digit {
[INFO] [stdout]    |      ----- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 29 |     Padding, //字面意思人如其名。
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Digit` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `OpStatus` is never used
[INFO] [stdout]   --> src/main.rs:31:6
[INFO] [stdout]    |
[INFO] [stdout] 31 | enum OpStatus {}
[INFO] [stdout]    |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `sign` is never read
[INFO] [stdout]   --> src/main.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | struct DecNum {
[INFO] [stdout]    |        ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 39 |     sign: bool,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DecNum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `check_carry` is never used
[INFO] [stdout]   --> src/main.rs:79:8
[INFO] [stdout]    |
[INFO] [stdout] 77 | impl Digit {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 78 |     //检查溢出和进位，变符号以及进位
[INFO] [stdout] 79 |     fn check_carry(self, b: Digit) -> Digit {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/main.rs:62:19
[INFO] [stdout]    |
[INFO] [stdout] 62 |             sign: x >= 0,
[INFO] [stdout]    |                   ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/lib.rs:79:26
[INFO] [stdout]    |
[INFO] [stdout] 79 |     fn check_carry(self, b: Digit) -> Digit {
[INFO] [stdout]    |                          ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `OpStatus` is never used
[INFO] [stdout]   --> src/lib.rs:31:6
[INFO] [stdout]    |
[INFO] [stdout] 31 | enum OpStatus {}
[INFO] [stdout]    |      ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `check_carry` is never used
[INFO] [stdout]   --> src/lib.rs:79:8
[INFO] [stdout]    |
[INFO] [stdout] 77 | impl Digit {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 78 |     //检查溢出和进位，变符号以及进位
[INFO] [stdout] 79 |     fn check_carry(self, b: Digit) -> Digit {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 43.97s
[INFO] running `Command { std: "docker" "inspect" "1ffa5bda5cfc8a4f367c34252eb1a6b7f8dfb4dfb72a42dd02a74d8675fc4d37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "1ffa5bda5cfc8a4f367c34252eb1a6b7f8dfb4dfb72a42dd02a74d8675fc4d37" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]   --> src/lib.rs:79:26
[INFO] [stderr]    |
[INFO] [stderr] 79 |     fn check_carry(self, b: Digit) -> Digit {
[INFO] [stderr]    |                          ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum `OpStatus` is never used
[INFO] [stderr]   --> src/lib.rs:31:6
[INFO] [stderr]    |
[INFO] [stderr] 31 | enum OpStatus {}
[INFO] [stderr]    |      ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `check_carry` is never used
[INFO] [stderr]   --> src/lib.rs:79:8
[INFO] [stderr]    |
[INFO] [stderr] 77 | impl Digit {
[INFO] [stderr]    | ---------- method in this implementation
[INFO] [stderr] 78 |     //检查溢出和进位，变符号以及进位
[INFO] [stderr] 79 |     fn check_carry(self, b: Digit) -> Digit {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `dec_num` (lib) generated 3 warnings (run `cargo fix --lib -p dec_num` to apply 1 suggestion)
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]   --> src/main.rs:79:26
[INFO] [stderr]    |
[INFO] [stderr] 79 |     fn check_carry(self, b: Digit) -> Digit {
[INFO] [stderr]    |                          ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Nan` and `Infinte` are never constructed
[INFO] [stderr]   --> src/main.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr]  9 | enum Basic {
[INFO] [stderr]    |      ----- variants in this enum
[INFO] [stderr] ...
[INFO] [stderr] 22 |     Nan,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 23 |     Infinte,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Basic` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Padding` is never constructed
[INFO] [stderr]   --> src/main.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 26 | enum Digit {
[INFO] [stderr]    |      ----- variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 29 |     Padding, //字面意思人如其名。
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Digit` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: enum `OpStatus` is never used
[INFO] [stderr]   --> src/main.rs:31:6
[INFO] [stderr]    |
[INFO] [stderr] 31 | enum OpStatus {}
[INFO] [stderr]    |      ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `sign` is never read
[INFO] [stderr]   --> src/main.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 33 | struct DecNum {
[INFO] [stderr]    |        ------ field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 39 |     sign: bool,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `DecNum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: method `check_carry` is never used
[INFO] [stderr]   --> src/main.rs:79:8
[INFO] [stderr]    |
[INFO] [stderr] 77 | impl Digit {
[INFO] [stderr]    | ---------- method in this implementation
[INFO] [stderr] 78 |     //检查溢出和进位，变符号以及进位
[INFO] [stderr] 79 |     fn check_carry(self, b: Digit) -> Digit {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]   --> src/main.rs:62:19
[INFO] [stderr]    |
[INFO] [stderr] 62 |             sign: x >= 0,
[INFO] [stderr]    |                   ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `dec_num` (bin "dec_num" test) generated 7 warnings (run `cargo fix --bin "dec_num" -p dec_num --tests` to apply 1 suggestion)
[INFO] [stderr] warning: `dec_num` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/deps/dec_num-11f9e7a6c9c76e1f)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/release/deps/dec_num-c8750e24301ec19e)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests dec_num
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1ffa5bda5cfc8a4f367c34252eb1a6b7f8dfb4dfb72a42dd02a74d8675fc4d37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ffa5bda5cfc8a4f367c34252eb1a6b7f8dfb4dfb72a42dd02a74d8675fc4d37", kill_on_drop: false }`
[INFO] [stdout] 1ffa5bda5cfc8a4f367c34252eb1a6b7f8dfb4dfb72a42dd02a74d8675fc4d37
