[INFO] cloning repository https://github.com/mostafahagras/Math-expression-eval
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mostafahagras/Math-expression-eval" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmostafahagras%2FMath-expression-eval", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmostafahagras%2FMath-expression-eval'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 633dbb27807bc54cd7f8ab1a5e67bc46baf8e5b1
[INFO] checking mostafahagras/Math-expression-eval against try#f3d95de532264a1215023baa665c0028aecf74b1 for pr-148477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmostafahagras%2FMath-expression-eval" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mostafahagras/Math-expression-eval
[INFO] finished tweaking git repo https://github.com/mostafahagras/Math-expression-eval
[INFO] tweaked toml for git repo https://github.com/mostafahagras/Math-expression-eval written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mostafahagras/Math-expression-eval on toolchain f3d95de532264a1215023baa665c0028aecf74b1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f3d95de532264a1215023baa665c0028aecf74b1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mostafahagras/Math-expression-eval 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" "+f3d95de532264a1215023baa665c0028aecf74b1" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+f3d95de532264a1215023baa665c0028aecf74b1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6cd15baa53667bbda6f920cf9e267c3d23cdd616946249808253a09a64965fd7
[INFO] running `Command { std: "docker" "start" "-a" "6cd15baa53667bbda6f920cf9e267c3d23cdd616946249808253a09a64965fd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6cd15baa53667bbda6f920cf9e267c3d23cdd616946249808253a09a64965fd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cd15baa53667bbda6f920cf9e267c3d23cdd616946249808253a09a64965fd7", kill_on_drop: false }`
[INFO] [stdout] 6cd15baa53667bbda6f920cf9e267c3d23cdd616946249808253a09a64965fd7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+f3d95de532264a1215023baa665c0028aecf74b1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ca90e60e7d1a198f425cbf02863a7f33995a7a19936e6610d2cab5032be75cc
[INFO] running `Command { std: "docker" "start" "-a" "2ca90e60e7d1a198f425cbf02863a7f33995a7a19936e6610d2cab5032be75cc", kill_on_drop: false }`
[INFO] [stderr]     Checking Math-expression-eval v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `UnaryOp` is never constructed
[INFO] [stdout]  --> src/ast.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum AstNode {
[INFO] [stdout]   |          ------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 5 |     UnaryOp(UnaryOp, Box<AstNode>),
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `AstNode` 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: variants `Positive` and `Negative` are never constructed
[INFO] [stdout]   --> src/ast.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub enum UnaryOp {
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] 10 |     Positive,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 11 |     Negative,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UnaryOp` 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: method `consume` is never used
[INFO] [stdout]   --> src/tokenizer.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl<'a> Tokenizer<'a> {
[INFO] [stdout]    | ---------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 29 |     fn consume(&mut self) -> Option<char> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `UnaryOp` is never constructed
[INFO] [stdout]  --> src/ast.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum AstNode {
[INFO] [stdout]   |          ------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 5 |     UnaryOp(UnaryOp, Box<AstNode>),
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `AstNode` 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: variants `Positive` and `Negative` are never constructed
[INFO] [stdout]   --> src/ast.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub enum UnaryOp {
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] 10 |     Positive,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 11 |     Negative,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UnaryOp` 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: method `consume` is never used
[INFO] [stdout]   --> src/tokenizer.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl<'a> Tokenizer<'a> {
[INFO] [stdout]    | ---------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 29 |     fn consume(&mut self) -> Option<char> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "2ca90e60e7d1a198f425cbf02863a7f33995a7a19936e6610d2cab5032be75cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ca90e60e7d1a198f425cbf02863a7f33995a7a19936e6610d2cab5032be75cc", kill_on_drop: false }`
[INFO] [stdout] 2ca90e60e7d1a198f425cbf02863a7f33995a7a19936e6610d2cab5032be75cc
