[INFO] cloning repository https://github.com/marci1175/calculator-rust2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/marci1175/calculator-rust2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarci1175%2Fcalculator-rust2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarci1175%2Fcalculator-rust2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 06b04b5274479fd0b48971a29c7cacc8fd718a51
[INFO] checking marci1175/calculator-rust2 against master#ad211ced81509462cdfe4c29ed10f97279a0acae for pr-135216-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarci1175%2Fcalculator-rust2" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/marci1175/calculator-rust2 on toolchain ad211ced81509462cdfe4c29ed10f97279a0acae
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/marci1175/calculator-rust2
[INFO] finished tweaking git repo https://github.com/marci1175/calculator-rust2
[INFO] tweaked toml for git repo https://github.com/marci1175/calculator-rust2 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/marci1175/calculator-rust2 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" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cc v1.1.14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 52ec0de34aedb86d0ef5d9472d38a22f719bc1c6539675e3b438a3e4bae222eb
[INFO] running `Command { std: "docker" "start" "-a" "52ec0de34aedb86d0ef5d9472d38a22f719bc1c6539675e3b438a3e4bae222eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52ec0de34aedb86d0ef5d9472d38a22f719bc1c6539675e3b438a3e4bae222eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52ec0de34aedb86d0ef5d9472d38a22f719bc1c6539675e3b438a3e4bae222eb", kill_on_drop: false }`
[INFO] [stdout] 52ec0de34aedb86d0ef5d9472d38a22f719bc1c6539675e3b438a3e4bae222eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 556b11222f0b738e502902cca634848b5e522ea3c9547a548b9b6bd54bcc99ee
[INFO] running `Command { std: "docker" "start" "-a" "556b11222f0b738e502902cca634848b5e522ea3c9547a548b9b6bd54bcc99ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.158
[INFO] [stderr]     Checking gimli v0.29.0
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]    Compiling cc v1.1.14
[INFO] [stderr]     Checking miniz_oxide v0.7.4
[INFO] [stderr]    Compiling anyhow v1.0.86
[INFO] [stderr]    Compiling thiserror v1.0.63
[INFO] [stderr]    Compiling syn v2.0.76
[INFO] [stderr]     Checking rustc-demangle v0.1.24
[INFO] [stderr]     Checking object v0.36.3
[INFO] [stderr]    Compiling backtrace v0.3.73
[INFO] [stderr]    Compiling thiserror-impl v1.0.63
[INFO] [stderr]     Checking addr2line v0.22.0
[INFO] [stderr]     Checking calculator-lib v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `last_expr` is assigned to, but never used
[INFO] [stdout]   --> src/lib.rs:88:17
[INFO] [stdout]    |
[INFO] [stdout] 88 |         let mut last_expr: Option<Expression> = None;
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_last_expr` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `last_expr` is never read
[INFO] [stdout]    --> src/lib.rs:134:13
[INFO] [stdout]     |
[INFO] [stdout] 134 |             last_expr = Some(expression.clone());
[INFO] [stdout]     |             ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `last_expr` is assigned to, but never used
[INFO] [stdout]   --> src/lib.rs:88:17
[INFO] [stdout]    |
[INFO] [stdout] 88 |         let mut last_expr: Option<Expression> = None;
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_last_expr` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `last_expr` is never read
[INFO] [stdout]    --> src/lib.rs:134:13
[INFO] [stdout]     |
[INFO] [stdout] 134 |             last_expr = Some(expression.clone());
[INFO] [stdout]     |             ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.38s
[INFO] running `Command { std: "docker" "inspect" "556b11222f0b738e502902cca634848b5e522ea3c9547a548b9b6bd54bcc99ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "556b11222f0b738e502902cca634848b5e522ea3c9547a548b9b6bd54bcc99ee", kill_on_drop: false }`
[INFO] [stdout] 556b11222f0b738e502902cca634848b5e522ea3c9547a548b9b6bd54bcc99ee