[INFO] cloning repository https://github.com/rjhdby/rust_calculator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rjhdby/rust_calculator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frjhdby%2Frust_calculator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frjhdby%2Frust_calculator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2bd962349fe42b4e3b50e193065841289111fa2b
[INFO] checking rjhdby/rust_calculator against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frjhdby%2Frust_calculator" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rjhdby/rust_calculator on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rjhdby/rust_calculator
[INFO] finished tweaking git repo https://github.com/rjhdby/rust_calculator
[INFO] tweaked toml for git repo https://github.com/rjhdby/rust_calculator written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/rjhdby/rust_calculator 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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded az v1.1.1
[INFO] [stderr]   Downloaded rug v1.12.0
[INFO] [stderr]   Downloaded gmp-mpfr-sys v1.4.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b978937d1f1b339410a1ebc311ea2c34582c156fb992a6eb21f125cca2fbebaf
[INFO] running `Command { std: "docker" "start" "-a" "b978937d1f1b339410a1ebc311ea2c34582c156fb992a6eb21f125cca2fbebaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b978937d1f1b339410a1ebc311ea2c34582c156fb992a6eb21f125cca2fbebaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b978937d1f1b339410a1ebc311ea2c34582c156fb992a6eb21f125cca2fbebaf", kill_on_drop: false }`
[INFO] [stdout] b978937d1f1b339410a1ebc311ea2c34582c156fb992a6eb21f125cca2fbebaf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c9d1c1e824cd7d0367decc806b79482d08efb40ce4411ede1f39e6c3f9fe0fb
[INFO] running `Command { std: "docker" "start" "-a" "3c9d1c1e824cd7d0367decc806b79482d08efb40ce4411ede1f39e6c3f9fe0fb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.4.5
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling az v1.1.1
[INFO] [stderr]    Compiling rug v1.12.0
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking strum v0.21.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]    Compiling strum_macros v0.21.1
[INFO] [stderr]     Checking clap v3.0.0-beta.2
[INFO] [stderr]     Checking expr_calc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `add` is never used
[INFO] [stdout]    --> src/ast.rs:122:12
[INFO] [stdout]     |
[INFO] [stdout] 114 | impl<T: 'static + Clone> ExprCalculator<T> {
[INFO] [stdout]     | ------------------------------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 122 |     pub fn add(
[INFO] [stdout]     |            ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_value` is never used
[INFO] [stdout]    --> src/ast.rs:368:12
[INFO] [stdout]     |
[INFO] [stdout] 356 | impl<T: 'static + Clone> Token<T> {
[INFO] [stdout]     | --------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 368 |     pub fn get_value(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `F64Handler` is never constructed
[INFO] [stdout]  --> src/f64_calculator.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct F64Handler {}
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `f64_calculator` is never used
[INFO] [stdout]   --> src/f64_calculator.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn f64_calculator() -> ExprCalculator<f64> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add` is never used
[INFO] [stdout]    --> src/ast.rs:122:12
[INFO] [stdout]     |
[INFO] [stdout] 114 | impl<T: 'static + Clone> ExprCalculator<T> {
[INFO] [stdout]     | ------------------------------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 122 |     pub fn add(
[INFO] [stdout]     |            ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `F64Handler` is never constructed
[INFO] [stdout]  --> src/f64_calculator.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct F64Handler {}
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `f64_calculator` is never used
[INFO] [stdout]   --> src/f64_calculator.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn f64_calculator() -> ExprCalculator<f64> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4m 08s
[INFO] running `Command { std: "docker" "inspect" "3c9d1c1e824cd7d0367decc806b79482d08efb40ce4411ede1f39e6c3f9fe0fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c9d1c1e824cd7d0367decc806b79482d08efb40ce4411ede1f39e6c3f9fe0fb", kill_on_drop: false }`
[INFO] [stdout] 3c9d1c1e824cd7d0367decc806b79482d08efb40ce4411ede1f39e6c3f9fe0fb