[INFO] cloning repository https://github.com/mmahfoud/rust-expression-tree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mmahfoud/rust-expression-tree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmahfoud%2Frust-expression-tree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmahfoud%2Frust-expression-tree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d70e245ad5cf4eb1033b362ecb49a025f4816ee2
[INFO] checking mmahfoud/rust-expression-tree against try#0e1f5e292c80a395d02835ac656d141e992caf89 for pr-145605
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmahfoud%2Frust-expression-tree" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mmahfoud/rust-expression-tree
[INFO] finished tweaking git repo https://github.com/mmahfoud/rust-expression-tree
[INFO] tweaked toml for git repo https://github.com/mmahfoud/rust-expression-tree written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mmahfoud/rust-expression-tree on toolchain 0e1f5e292c80a395d02835ac656d141e992caf89
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0e1f5e292c80a395d02835ac656d141e992caf89" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mmahfoud/rust-expression-tree 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" "+0e1f5e292c80a395d02835ac656d141e992caf89" "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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+0e1f5e292c80a395d02835ac656d141e992caf89" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 81d3a26346a440db07a22d8ca8eeb6e8266883758a06b7eae1f988878d692adc
[INFO] running `Command { std: "docker" "start" "-a" "81d3a26346a440db07a22d8ca8eeb6e8266883758a06b7eae1f988878d692adc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81d3a26346a440db07a22d8ca8eeb6e8266883758a06b7eae1f988878d692adc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81d3a26346a440db07a22d8ca8eeb6e8266883758a06b7eae1f988878d692adc", kill_on_drop: false }`
[INFO] [stdout] 81d3a26346a440db07a22d8ca8eeb6e8266883758a06b7eae1f988878d692adc
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+0e1f5e292c80a395d02835ac656d141e992caf89" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1411cd4fb29abb0ca694688f9c325e1be3ca393add612dc9f2b5c12f05aaa240
[INFO] running `Command { std: "docker" "start" "-a" "1411cd4fb29abb0ca694688f9c325e1be3ca393add612dc9f2b5c12f05aaa240", kill_on_drop: false }`
[INFO] [stderr]     Checking dummy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variants `Substraction` and `Division` are never constructed
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | enum BinaryOperation {
[INFO] [stdout]   |      --------------- variants in this enum
[INFO] [stdout] 5 |     Addition,
[INFO] [stdout] 6 |     Substraction,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 7 |     Multiplication,
[INFO] [stdout] 8 |     Division,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `BinaryOperation` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Substraction` and `Division` are never constructed
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | enum BinaryOperation {
[INFO] [stdout]   |      --------------- variants in this enum
[INFO] [stdout] 5 |     Addition,
[INFO] [stdout] 6 |     Substraction,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 7 |     Multiplication,
[INFO] [stdout] 8 |     Division,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `BinaryOperation` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Exp` is never constructed
[INFO] [stdout]   --> src/main.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 69 | enum UnaryOperation {
[INFO] [stdout]    |      -------------- variant in this enum
[INFO] [stdout] 70 |     Minus,
[INFO] [stdout] 71 |     Exp,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UnaryOperation` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Exp` is never constructed
[INFO] [stdout]   --> src/main.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 69 | enum UnaryOperation {
[INFO] [stdout]    |      -------------- variant in this enum
[INFO] [stdout] 70 |     Minus,
[INFO] [stdout] 71 |     Exp,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UnaryOperation` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "1411cd4fb29abb0ca694688f9c325e1be3ca393add612dc9f2b5c12f05aaa240", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1411cd4fb29abb0ca694688f9c325e1be3ca393add612dc9f2b5c12f05aaa240", kill_on_drop: false }`
[INFO] [stdout] 1411cd4fb29abb0ca694688f9c325e1be3ca393add612dc9f2b5c12f05aaa240