[INFO] cloning repository https://github.com/Melidee/numers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Melidee/numers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMelidee%2Fnumers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMelidee%2Fnumers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 37521ce56c2c26cc71003e9bcc9d4b12d6990bc4
[INFO] checking Melidee/numers against try#6619027b13a87a3597115f2c8231f107bf3a7a5f for pr-139624
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMelidee%2Fnumers" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Melidee/numers on toolchain 6619027b13a87a3597115f2c8231f107bf3a7a5f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6619027b13a87a3597115f2c8231f107bf3a7a5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Melidee/numers
[INFO] finished tweaking git repo https://github.com/Melidee/numers
[INFO] tweaked toml for git repo https://github.com/Melidee/numers written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Melidee/numers 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" "+6619027b13a87a3597115f2c8231f107bf3a7a5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+6619027b13a87a3597115f2c8231f107bf3a7a5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4cd7a6c578d4cfd3a59570198acffd0ba04e75015d2146256493138f9ed15ba0
[INFO] running `Command { std: "docker" "start" "-a" "4cd7a6c578d4cfd3a59570198acffd0ba04e75015d2146256493138f9ed15ba0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4cd7a6c578d4cfd3a59570198acffd0ba04e75015d2146256493138f9ed15ba0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cd7a6c578d4cfd3a59570198acffd0ba04e75015d2146256493138f9ed15ba0", kill_on_drop: false }`
[INFO] [stdout] 4cd7a6c578d4cfd3a59570198acffd0ba04e75015d2146256493138f9ed15ba0
[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" "-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+6619027b13a87a3597115f2c8231f107bf3a7a5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75d5cdbacc5f1469b36dc59303e7c18bff454ec8db09d6740046314f82c77d74
[INFO] running `Command { std: "docker" "start" "-a" "75d5cdbacc5f1469b36dc59303e7c18bff454ec8db09d6740046314f82c77d74", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.89
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling anyhow v1.0.91
[INFO] [stderr]    Compiling thiserror v1.0.65
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.85
[INFO] [stderr]    Compiling thiserror-impl v1.0.65
[INFO] [stderr]     Checking numers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `statements`
[INFO] [stdout]  --> src/compiler.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn compile(statements: Vec<Statement>) -> Result<String> {
[INFO] [stdout]   |            ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_statements`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `compile` is never used
[INFO] [stdout]  --> src/compiler.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn compile(statements: Vec<Statement>) -> Result<String> {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `QbeFunction` is never constructed
[INFO] [stdout]   --> src/compiler.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct QbeFunction {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `QbeStatement` is never constructed
[INFO] [stdout]   --> src/compiler.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | struct QbeStatement {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Operation` is never used
[INFO] [stdout]   --> src/compiler.rs:58:6
[INFO] [stdout]    |
[INFO] [stdout] 58 | enum Operation {
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `InvalidCharacter` and `InvalidAssignment` are never constructed
[INFO] [stdout]  --> src/error.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum ParseError {
[INFO] [stdout]   |          ---------- variants in this enum
[INFO] [stdout] 6 |     #[error("found invalid character: {0}")]
[INFO] [stdout] 7 |     InvalidCharacter(char),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 8 |     #[error("invalid identifier used for assignment")]
[INFO] [stdout] 9 |     InvalidAssignment,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Declaration` and `Expression` are never constructed
[INFO] [stdout]  --> src/parser.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum Statement {
[INFO] [stdout]   |          --------- variants in this enum
[INFO] [stdout] 6 |     Declaration(Declaration),
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 7 |     Expression(Vec<Token>),
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Statement` 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: function `parse` is never used
[INFO] [stdout]   --> src/parser.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn parse(source: &str) -> Result<Vec<Statement>> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `split_declaration` is never used
[INFO] [stdout]   --> src/parser.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn split_declaration(declaration: &[Token]) -> Result<(String, Vec<String>)> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/parser.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub enum Token {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] 58 |     Add,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 59 |     Subtract,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 60 |     Multiply,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 61 |     Divide,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 62 |     Exponent,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 63 |     Assign,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 64 |     OpenParen,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 65 |     CloseParen,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 66 |     Comma,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 67 |     Identifier(String),
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 68 |     Number(f64),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Token` 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: methods `is_operator`, `presidence`, `is_left_associative`, `is_number`, and `is_identifier` are never used
[INFO] [stdout]    --> src/parser.rs:72:8
[INFO] [stdout]     |
[INFO] [stdout] 71  | impl Token {
[INFO] [stdout]     | ---------- methods in this implementation
[INFO] [stdout] 72  |     fn is_operator(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 83  |     fn presidence(&self) -> i32 {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 94  |     fn is_left_associative(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     fn is_number(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |     fn is_identifier(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DIGITS` is never used
[INFO] [stdout]    --> src/parser.rs:117:7
[INFO] [stdout]     |
[INFO] [stdout] 117 | const DIGITS: &str = ".0123456789";
[INFO] [stdout]     |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ALPHABET` is never used
[INFO] [stdout]    --> src/parser.rs:118:7
[INFO] [stdout]     |
[INFO] [stdout] 118 | const ALPHABET: &str = "_abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
[INFO] [stdout]     |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tokenize` is never used
[INFO] [stdout]    --> src/parser.rs:119:4
[INFO] [stdout]     |
[INFO] [stdout] 119 | fn tokenize(source: &str) -> Result<Vec<Token>> {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `infix_to_rpn` is never used
[INFO] [stdout]    --> src/parser.rs:170:4
[INFO] [stdout]     |
[INFO] [stdout] 170 | fn infix_to_rpn(expr: Vec<Token>) -> Result<Vec<Token>> {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `statements`
[INFO] [stdout]  --> src/compiler.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn compile(statements: Vec<Statement>) -> Result<String> {
[INFO] [stdout]   |            ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_statements`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `compile` is never used
[INFO] [stdout]  --> src/compiler.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn compile(statements: Vec<Statement>) -> Result<String> {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `QbeFunction` is never constructed
[INFO] [stdout]   --> src/compiler.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct QbeFunction {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `QbeStatement` is never constructed
[INFO] [stdout]   --> src/compiler.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | struct QbeStatement {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Operation` is never used
[INFO] [stdout]   --> src/compiler.rs:58:6
[INFO] [stdout]    |
[INFO] [stdout] 58 | enum Operation {
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_operator` and `is_number` are never used
[INFO] [stdout]    --> src/parser.rs:72:8
[INFO] [stdout]     |
[INFO] [stdout] 71  | impl Token {
[INFO] [stdout]     | ---------- methods in this implementation
[INFO] [stdout] 72  |     fn is_operator(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     fn is_number(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.96s
[INFO] running `Command { std: "docker" "inspect" "75d5cdbacc5f1469b36dc59303e7c18bff454ec8db09d6740046314f82c77d74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75d5cdbacc5f1469b36dc59303e7c18bff454ec8db09d6740046314f82c77d74", kill_on_drop: false }`
[INFO] [stdout] 75d5cdbacc5f1469b36dc59303e7c18bff454ec8db09d6740046314f82c77d74