[INFO] cloning repository https://github.com/dev-lew/simple
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dev-lew/simple" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdev-lew%2Fsimple", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdev-lew%2Fsimple'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] db75caa8880592002f0e23d51b0ebfaeff94cbad
[INFO] checking dev-lew/simple against 5b237c915528dadada3f674b90c7c80368b632be for pr-133502-29
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdev-lew%2Fsimple" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/dev-lew/simple
[INFO] finished tweaking git repo https://github.com/dev-lew/simple
[INFO] tweaked toml for git repo https://github.com/dev-lew/simple written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dev-lew/simple on toolchain 5b237c915528dadada3f674b90c7c80368b632be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5b237c915528dadada3f674b90c7c80368b632be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dev-lew/simple 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" "+5b237c915528dadada3f674b90c7c80368b632be" "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-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 5a9f84c6945b92e0b66c7e4bd75e244a80739967e51ce26a1c898dabea1b2db9
[INFO] running `Command { std: "docker" "start" "5a9f84c6945b92e0b66c7e4bd75e244a80739967e51ce26a1c898dabea1b2db9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a9f84c6945b92e0b66c7e4bd75e244a80739967e51ce26a1c898dabea1b2db9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "5a9f84c6945b92e0b66c7e4bd75e244a80739967e51ce26a1c898dabea1b2db9" "/opt/rustwide/cargo-home/bin/cargo" "+5b237c915528dadada3f674b90c7c80368b632be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a9f84c6945b92e0b66c7e4bd75e244a80739967e51ce26a1c898dabea1b2db9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "5a9f84c6945b92e0b66c7e4bd75e244a80739967e51ce26a1c898dabea1b2db9" "/opt/rustwide/cargo-home/bin/cargo" "+5b237c915528dadada3f674b90c7c80368b632be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking simple v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/main.rs:301:9
[INFO] [stdout]     |
[INFO] [stdout] 301 |     let b = Expression::AddExpr(Add {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `d`
[INFO] [stdout]    --> src/main.rs:314:9
[INFO] [stdout]     |
[INFO] [stdout] 314 |     let d = Expression::LessThanExpr(LessThan {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/main.rs:319:9
[INFO] [stdout]     |
[INFO] [stdout] 319 |     let x = Variable {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/main.rs:322:9
[INFO] [stdout]     |
[INFO] [stdout] 322 |     let y = Variable {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `StrExpr` and `DoNothingExpr` are never constructed
[INFO] [stdout]   --> src/main.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 52 | enum Expression {
[INFO] [stdout]    |      ---------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 59 |     StrExpr(String),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 60 |     DoNothingExpr(DoNothing),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expression` has derived impls for the traits `Debug` and `Clone`, 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: unused variable: `b`
[INFO] [stdout]    --> src/main.rs:301:9
[INFO] [stdout]     |
[INFO] [stdout] 301 |     let b = Expression::AddExpr(Add {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `d`
[INFO] [stdout]    --> src/main.rs:314:9
[INFO] [stdout]     |
[INFO] [stdout] 314 |     let d = Expression::LessThanExpr(LessThan {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/main.rs:319:9
[INFO] [stdout]     |
[INFO] [stdout] 319 |     let x = Variable {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/main.rs:322:9
[INFO] [stdout]     |
[INFO] [stdout] 322 |     let y = Variable {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `StrExpr` and `DoNothingExpr` are never constructed
[INFO] [stdout]   --> src/main.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 52 | enum Expression {
[INFO] [stdout]    |      ---------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 59 |     StrExpr(String),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 60 |     DoNothingExpr(DoNothing),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expression` has derived impls for the traits `Debug` and `Clone`, 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "5a9f84c6945b92e0b66c7e4bd75e244a80739967e51ce26a1c898dabea1b2db9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a9f84c6945b92e0b66c7e4bd75e244a80739967e51ce26a1c898dabea1b2db9", kill_on_drop: false }`
[INFO] [stdout] 5a9f84c6945b92e0b66c7e4bd75e244a80739967e51ce26a1c898dabea1b2db9
