[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#d12484522bcab8d07e325c6570f226a2faace3f7 for pr-128425-1
[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] validating manifest of git repo https://github.com/mostafahagras/Math-expression-eval on toolchain d12484522bcab8d07e325c6570f226a2faace3f7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d12484522bcab8d07e325c6570f226a2faace3f7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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] 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" "+d12484522bcab8d07e325c6570f226a2faace3f7" "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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+d12484522bcab8d07e325c6570f226a2faace3f7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d14cc2ffb81587122a88b9e918f0426286ad549b2347a03e8af181592dbc603f
[INFO] running `Command { std: "docker" "start" "-a" "d14cc2ffb81587122a88b9e918f0426286ad549b2347a03e8af181592dbc603f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d14cc2ffb81587122a88b9e918f0426286ad549b2347a03e8af181592dbc603f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d14cc2ffb81587122a88b9e918f0426286ad549b2347a03e8af181592dbc603f", kill_on_drop: false }`
[INFO] [stdout] d14cc2ffb81587122a88b9e918f0426286ad549b2347a03e8af181592dbc603f
[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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+d12484522bcab8d07e325c6570f226a2faace3f7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f4cb3e2d976a6e9e17c559f4e12c3b912b5d39e030d18f1d1db9673f25568ce
[INFO] running `Command { std: "docker" "start" "-a" "3f4cb3e2d976a6e9e17c559f4e12c3b912b5d39e030d18f1d1db9673f25568ce", 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)]` 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)]` 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] error: couldn't create a temp dir: No space left on device (os error 28) at path "/opt/rustwide/target/debug/deps/rmetaiSDcYI"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `Math-expression-eval` (bin "Math-expression-eval" test) due to 1 previous error; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "3f4cb3e2d976a6e9e17c559f4e12c3b912b5d39e030d18f1d1db9673f25568ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f4cb3e2d976a6e9e17c559f4e12c3b912b5d39e030d18f1d1db9673f25568ce", kill_on_drop: false }`
[INFO] [stdout] 3f4cb3e2d976a6e9e17c559f4e12c3b912b5d39e030d18f1d1db9673f25568ce